JP2529643B2 - Indoor breeding method for damselflies and breeding containers used therefor - Google Patents

Indoor breeding method for damselflies and breeding containers used therefor

Info

Publication number
JP2529643B2
JP2529643B2 JP5317496A JP31749693A JP2529643B2 JP 2529643 B2 JP2529643 B2 JP 2529643B2 JP 5317496 A JP5317496 A JP 5317496A JP 31749693 A JP31749693 A JP 31749693A JP 2529643 B2 JP2529643 B2 JP 2529643B2
Authority
JP
Japan
Prior art keywords
breeding
container
damselfly
damselflies
larvae
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
JP5317496A
Other languages
Japanese (ja)
Other versions
JPH07143832A (en
Inventor
豊 小神野
Original Assignee
株式会社川上農場
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 株式会社川上農場 filed Critical 株式会社川上農場
Priority to JP5317496A priority Critical patent/JP2529643B2/en
Publication of JPH07143832A publication Critical patent/JPH07143832A/en
Application granted granted Critical
Publication of JP2529643B2 publication Critical patent/JP2529643B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明はイトトンボ類の飼育法に
関し、さらに詳しくは、イトトンボ類を室内において累
代飼育できるイトトンボ類の屋内飼育方法及び飼育に用
いる容器に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for breeding damselflies, and more particularly to a method for indoor breeding damselfly that can be reared indoors and a container used for breeding.

【0002】[0002]

【従来の技術】近年、地球的規模の環境破壊が問題とな
っていることを背景として、身近な自然や生き物に対す
る関心が高まっており、特に学校における環境教育が極
めて重要視されている。そのような中でイトトンボ類
は、我が国における水辺の生き物の代表的なものの1つ
として、また水辺の環境指標生物としても注目されてい
る。イトトンボ類は、観賞用および学校教育における環
境教育のための教材として用いられ、また、毒性試験や
水環境指標の実験生物としても利用される。これまでイ
トトンボ類に関して、分類・分布調査や生態についての
数多くの研究がなされている。
2. Description of the Related Art In recent years, with the background of environmental destruction on a global scale, interest in nature and creatures around us is increasing, and environmental education in schools is particularly important. Under such circumstances, damselflies are attracting attention as one of the representative waterside creatures in Japan and as an environmental indicator organism for waterside. Damselflies are used as ornamental and teaching materials for environmental education in school education, and also as toxicological tests and experimental organisms for water environment indicators. To date, many studies have been conducted on the classification and distribution studies and ecology of damselflies.

【0003】[0003]

【発明が解決しようとする課題】しかし、イトトンボ類
の研究はいずれも野外での研究調査が主であり、飼育条
件(温度、湿度、光、餌料、飼育空間の容積等)に不明
な点が多かったため、意外にも室内飼育における成功例
がまだなかった。従来の飼育法は、野外で採集したイト
トンボ類の幼虫を魚類飼育用の水槽や腰高シャーレーな
どに入れ、餌としてアカムシやイトミミズを与えて飼育
するものであった。しかしトンボの幼虫は肉食性である
ため共喰いすることがあり、それ以外にもツリガネムシ
などにより死亡し、また羽化できずに死亡する例が多
く、たとえ羽化させることができても交尾や産卵までに
は至らなかった。また成虫を採集し餌として蚊やハエを
与えることも行われていたが、交尾や産卵するまで飼育
することはできなかった。特に従来の成虫の餌付け方法
は、個別にトンボの成虫を捕獲して羽をつかんでピンセ
ットでハエやカを口まで持っていくといった方法であっ
て、非常に手間もかかり、トンボを傷つけたりストレス
を与える方法であった。本発明は、上記の問題点を克服
し、これまで困難とされてきたイトトンボ類の屋内飼育
における累代飼育を可能とするイトトンボ類の屋内飼育
方法及びそれに用いる飼育容器を提供することをその目
的とする。
However, most of the studies on damselfly are conducted in the field, and there are unclear points regarding breeding conditions (temperature, humidity, light, feed, volume of breeding space, etc.). Surprisingly, there were still no successful cases of indoor breeding because of the large number. In the conventional breeding method, larvae of damselfly collected in the field were placed in an aquarium for fish breeding, waist-high petri dish, and the like, and were fed with aphids and worms as food. However, since dragonfly larvae are carnivorous, they may eat together, and in addition to this, there are many cases where they die due to Vorticella and die without being able to emerge, even if they can emerge, even mating and spawning. It didn't reach. Adults were also collected and fed with mosquitoes and flies as food, but they could not be bred until mating and spawning. In particular, the conventional method of feeding adult dragonflies involves individually capturing adult dragonflies, grasping their wings, and using tweezers to bring flies and mosquitoes up to their mouths. Was the way to give. The present invention has an object to provide an indoor breeding method for damselflies and a breeding container used therefor, which overcomes the above-mentioned problems and enables successive breeding in indoor breeding of damselfly that has been difficult until now. To do.

【0004】[0004]

【課題を解決するための手段】本発明者は、上記問題点
を解決すべくイトトンボ類の食性、習性等について鋭意
研究を重ねた結果、ふ化後まもない1齢幼虫がワムシを
捕食すること、幼虫を成長に応じて容器の大きさを変え
ながら個別に飼育することで共喰いを防ぎ、羽化率を高
めうることを見い出し、これらの知見に基づいて本発明
を完成するに至った。すなわち本発明は、(1)イトト
ンボ類の幼虫に飼料としてワムシ及び/又はミジンコを
与えるとともに共喰いしないように個別に飼育すること
を特徴とするイトトンボ類の屋内飼育法、(2)飼料と
して1齢〜3齢幼虫にツボワムシを、4齢幼虫にツボワ
ムシ及びタマミジンコを、5齢〜終齢幼虫にタマミジン
コをそれぞれ1頭に対して10〜50個体/日与えると
ともに、幼虫の成長に応じて、飼育容器の大きさを変え
る(1)項記載の方法、(3)イトトンボ類の成虫に飼
料として蚊を与え、網状体で囲んだ飼育ケージ内で飼育
することを特徴とするイトトンボ類の屋内飼育法、
(4)飼料としてユスリカを1頭に対して10〜50個
体/日与える(3)項記載の方法、(5)水で濡らした
ろ紙又はインクの吸い取り紙に産卵させる(3)項記載
の方法、(6)水温、気温ともに22〜28℃で飼育す
る(1)〜(5)のいずれか1項記載の方法、(7)終
齢幼虫の飼育容器と、終齢幼虫が通過できる穴を設けた
蓋体、飼育容器の底付近から蓋体の穴を通って上方へ至
る棒状体及び棒状体上方から飼育容器上部を覆う被覆体
を有してなることを特徴とするイトトンボ類の羽化容
器、及び(8)少なくとも一部に網状体を用いて上部が
覆われた容器と、容器の底面上に載置されたろ紙又はイ
ンクの吸い取り紙を有してなり、ろ紙又はインクの吸い
取り紙を水で濡らしてその上に産卵させることを特徴と
するイトトンボ類の産卵容器を提供するものである。
Means for Solving the Problems As a result of intensive studies on the feeding habits, habits and the like of damselflies in order to solve the above problems, the present inventor found that the 1st instar larvae that predated hatch prey on rotifers. Based on these findings, the present invention has been completed based on the finding that by feeding the larvae individually while changing the size of the container according to the growth, it is possible to prevent co-eating and increase the emergence rate. That is, the present invention provides (1) an indoor breeding method for damselflies, which comprises feeding rotifers and / or daphnia as feed to larvae of damselfly and individually breeding them so as not to co-eating, (2) 1 as feed Incubate the 3rd-instar larvae with the Centella asiatica, the 4th-instar larvae with the Centella asiatica and the Phalaenopsis larvae, and provide the 5th- to the last-instar larvae with 10 to 50 individuals / day for each larva, and raise the larvae according to their growth (1) Changing the size of the container, (3) An indoor breeding method for damselflies, characterized in that adult mosquitos are fed with mosquitoes as feed and are housed in a breeding cage surrounded by a net. ,
(4) The method according to the item (3), wherein the chironomid is fed as a feed in an amount of 10 to 50 individuals / day, and (5) the method according to the item (3), wherein the filter paper moistened with water or the ink blotter paper is laid. , (6) The method according to any one of (1) to (5), wherein both the water temperature and the air temperature are raised at 22 to 28 ° C., (7) a rearing larva rearing container and a hole through which the last larvae can pass. An eclosion container for damselflies, comprising a lid provided, a rod-shaped body extending from the vicinity of the bottom of the breeding container through the hole of the lid and upward, and a covering body covering the upper portion of the breeding container from above the rod-shaped body. And (8) a container whose upper part is covered with a mesh body at least in part, and a filter paper or ink blotter placed on the bottom surface of the container. Of damselfly, which is characterized by being wet with water and spawning on it It is to provide an egg container.

【0005】イトトンボ類は、図12に示すように卵→
(ふ化)→前幼虫→幼虫(アオモンイトトンボ属アジア
イトトンボで8〜9齢期、アオモンイトトンボ属アオモ
ンイトトンボで9〜10齢期)→成虫の生活史をもつこ
とが確認された。以下に、本発明を詳細に説明する。
Damselflies, as shown in FIG. 12, are eggs →
(Hatching) → prelarvae → larvae (8-9th in Amaranthidae, 9-10th in Aamon damselfly) It was confirmed to have a life history of adults. The present invention will be described in detail below.

【0006】本発明方法では、イトトンボ類の1〜3齢
幼虫にツボワムシ(Brachionus urqueoraris)を、4齢幼
虫にツボワムシ及びタマミジンコ(Moina macrocopa)
を、5齢〜終齢幼虫にタマミジンコを、成虫にユスリカ
(Chironomus yoshimatsui)をそれぞれ1頭に10〜50
個体/日、飼料として与えることが好ましく、それによ
りそれぞれの成長段階に適合した飼育ができる。成虫の
餌付けは、吸虫管で採集したユスリカを飼育ケージに入
れるだけでトンボが自由に餌を捕食することが可能であ
る。本発明方法は、上記の飼料を用いることに加え、特
に幼虫の段階で成長に応じて飼育容器の大きさを変えな
がらイトトンボ類を1個体ずつ別々に飼育することを特
徴とする。幼虫をふ化後まもない1齢幼虫から個別に飼
育することで共喰いを防ぎ、また病気の伝染も予防でき
る。幼虫の飼育容器としては特に制限はないが、例えば
マルチウェルプレイト、ビーカー等を用いることができ
る。幼虫の成長に応じて容器の容量を大きくすること、
例えばふ化後〜4齢幼虫を12穴のマルチウェルプレイ
トで、5齢〜7齢幼虫を6穴のマルチウェルプレイト
で、その後終齢幼虫から羽化までを200ml容程度の
ビーカーで飼育することにより、飼育の初期に飼育空間
を省スペース化し飼育水の交換を容易に行うことができ
る。
According to the method of the present invention, the larvae of the damselfly (1st to 3rd instars) are lumpworms ( Brachionus urqueoraris ), and the 4th instar larvae are rotifers and larvae ( Moina macrocopa )
The 5th to the last instar larvae are larvae and adult adults are chironomid.
( Chironomus yoshimatsui ) 10-50 for each
It is preferable to feed as individuals / day or as a feed, which enables breeding adapted to each growth stage. For feeding adult worms, dragonflies can freely prey on food by simply placing the chironomids collected in a fluke tube into a breeding cage. The method of the present invention is characterized in that, in addition to the use of the above-mentioned feed, damselflies are individually bred one by one while the size of the breeding container is changed according to the growth particularly at the stage of larva. Individual feeding of first-instar larvae shortly after hatching can prevent cannibalism and prevent disease transmission. The container for raising larvae is not particularly limited, but for example, a multiwell plate, a beaker or the like can be used. Increase the capacity of the container according to the growth of the larva,
For example, by rearing the 4th instar larvae after hatching in a 12-well multiwell plate, the 5th to 7th instar larvae in a 6-well multiwell plate, and then rearing the last instar larva to the emergence in a beaker of about 200 ml volume, The breeding space can be saved in the initial stage of breeding and the breeding water can be easily exchanged.

【0007】終齢幼虫の羽化には、本発明の羽化容器を
用いることができる。図1に本発明の羽化容器の一実施
例の斜視図を示す。羽化容器1は、終齢幼虫の飼育容器
2(図1ではビーカーであり、飼育時には飼育水を入れ
る)、終齢幼虫が通過できるように中央部に直径1cm
程の穴3を設けた蓋体4、飼育容器2の底付近から蓋体
4の穴3を通って容器2の上方空間へ至る棒状体5、棒
状体5上方から飼育容器2上部を覆う被覆体6からな
る。被覆体6は、例えば全体、側面部または上部を成虫
が通過できない大きさの目(2mm目程度)のサラン製
等のネットとしてもよく、それにより羽化容器1内に外
部から空気を流通させることができる。この羽化容器を
トンボの羽化に用いると、終齢幼虫は飼育水中から蓋体
4の上方まで棒状体5を登って羽化するので、羽化時に
幼虫が溺れて死亡することを完全に防ぐことができる。
棒状体5は長さ15cm直径2mm程度のものでよい
が、これ以外のサイズでもよく、材質等に制限はない。
また棒状体5を飼育容器2の底部に固定しても、蓋体4
の穴3の縁にもたれさせてもよい。成虫の飼育容器とし
ては、網状体で囲んで外部の空気が流通するようにした
飼育ケージを用いる。このような飼育ケージの例を図2
に示した(斜視図)。飼育ケージ11は、例えば、底面
が31.5cm×18.5cmの長方形で高さが20c
mの直方体状に(容量は11655cm2 である)、バ
ルサ材の柱12を組んで骨組みとし、編状体13として
サラン製のネット(2mm目)を張り付けてなる。飼育
ケージ11の容量は上記よりも大きければ特に制限はな
く、また柱12及び網状体13の材質にも特に制限はな
い。この程度の容量がイトトンボ類(アオモンイトトン
ボ属のアジアイトトンボ及びアオモンイトトンボ)が成
長し、交尾できる最小限度の飼育空間であると考えられ
る。
For emergence of the last instar larva, the emergence container of the present invention can be used. FIG. 1 shows a perspective view of an embodiment of the eclosion container of the present invention. The emergence container 1 is a container 2 for raising last-instar larvae (a beaker in FIG. 1, and water is kept during rearing), and a diameter of 1 cm is provided in the center so that the last-instar larvae can pass through.
A cover 4 having a hole 3 provided therein, a rod-shaped body 5 extending from the vicinity of the bottom of the breeding container 2 to the space above the container 2 through the hole 3 of the lid 4, and a cover covering the upper portion of the breeding container 2 from above the rod-shaped body 5. It consists of body 6. The covering body 6 may be, for example, a net made of Saran or the like having a size (about 2 mm) of a size that does not allow adults to pass through the entire body, the side surface portion, or the upper portion, thereby allowing air to flow from the outside into the emergence container 1. You can When this emergence container is used for the emergence of dragonflies, the last-instar larvae climb up the rod-like body 5 from the breeding water to above the lid 4 and emerge, so it is possible to completely prevent the larvae from drowning and dying during emergence. .
The rod-shaped body 5 may have a length of 15 cm and a diameter of about 2 mm, but other sizes may be used and there is no limitation on the material or the like.
Even if the rod-shaped body 5 is fixed to the bottom of the breeding container 2, the lid 4
The edge of the hole 3 may be leaned. As a container for breeding adult worms, a breeding cage surrounded by a mesh body to allow the outside air to flow is used. An example of such a breeding cage is shown in FIG.
(Perspective view). The breeding cage 11 has, for example, a rectangular bottom of 31.5 cm × 18.5 cm and a height of 20 c.
A balsa pillar 12 is assembled into a cuboid shape (capacity is 11655 cm 2 ) to form a skeleton, and a saran net (2 mm) is attached as a knitted body 13. The capacity of the breeding cage 11 is not particularly limited as long as it is larger than the above, and the materials of the columns 12 and the mesh body 13 are also not particularly limited. This kind of capacity is considered to be the minimum breeding space for damselflies (Asia damselfly of the genus Aomon damselfly and the damselfly damselfly) to grow and mate.

【0008】交尾後にメスが産卵する際には、水で濡ら
したろ紙又はインクの吸い取り紙に産卵させることが好
ましい。産卵容器としては、図3又は4にその一実施例
を示した本発明の産卵容器を用いることができる。具体
的には、成虫の飼育ケージ11(図2のもの)をそのま
ま用い、ケージの底面上に水で濡らした樹脂製のマット
14、例えばニッソー社製プラマットを敷き、その上に
水で濡らしたろ紙又はインクの吸い取り紙15を敷いた
ものを用いる(図3に断面図を示した、以下これを自由
産卵容器という)。または図4にその一実施例の斜視図
を示したようにシャーレーなどの底の平らな容器16の
底面上に、自由産卵容器の場合と同様にそれぞれ水で濡
らしたマット14及びろ紙又はインクの吸い取り紙15
を敷き、上部を被覆体17(例えば図1の羽化容器で用
いた被覆体6をそのまま用いる)で覆ったものを用いる
ことができる(以下、集中産卵容器という)。採卵法
は、前記自由産卵容器(図3)又は集中産卵容器(図
4)中で交尾後のメスに産卵させ、その後卵を産みつけ
られたろ紙又はインクの吸い取り紙を取り出して採卵す
る。産卵時には、自由産卵容器の場合は成虫の雌雄のつ
がいを飼育しながら自由に産卵させ、集中産卵容器の場
合は交尾の済んだ成熟した雌のみを容器に入れて産卵さ
せる。自然の状態では、イトトンボ類は水草などの植物
組織内に産卵するが、これに代えて上記のろ紙、吸い取
り紙を用いることにより採卵が容易となり、卵からのイ
トトンボ類の累代飼育を容易に行うことができる。
When females lay eggs after mating, it is preferable to lay them on filter paper or ink blotter paper wet with water. As the egg-laying container, the egg-laying container of the present invention whose embodiment is shown in FIG. 3 or 4 can be used. Specifically, using an adult breeding cage 11 (as shown in FIG. 2) as it is, a resin mat 14 moistened with water, for example, a plastic mat manufactured by Nisso Co., is laid on the bottom surface of the cage, and the cage is moistened with water. A filter paper or a paper lined with an ink absorbing paper 15 is used (a cross-sectional view is shown in FIG. 3, hereinafter referred to as a free spawning container). Alternatively, as shown in the perspective view of the embodiment in FIG. 4, on the bottom surface of a flat-bottomed container 16 such as a petri dish, as in the case of the free-laying egg container, the mat 14 and filter paper or ink wetted with water are respectively provided. Blotter paper 15
It is possible to use a container (hereinafter, referred to as a concentrated spawning container) which is covered with a cover and whose upper part is covered with a cover 17 (for example, the cover 6 used in the emergence container of FIG. 1 is used as it is). In the egg collection method, a female after mating lays eggs in the free spawning container (FIG. 3) or the concentrated spawning container (FIG. 4), and then the filter paper or the ink blotter paper on which the eggs are laid is taken out and collected. At the time of spawning, in the case of a free spawning container, the adult male and female pairs are allowed to lay freely while in the case of the intensive spawning container, only mated females are put in the container to spawn. In the natural state, damselflies lay eggs in plant tissues such as aquatic plants, but by using the above-mentioned filter paper and blotter paper instead, it becomes easier to collect eggs, and the breeding of damselfly from eggs is facilitated. be able to.

【0009】本発明方法において、イトトンボ類の幼虫
の飼育温度は22〜28℃の範囲内であることが好まし
い。それ以下の温度、例えば15℃もしくは20℃でも
飼育は可能であるが、そのような温度で飼育する場合に
は、各齢数期間が長くなるために体表面にツリガネムシ
などが付着し、脱皮または運動機能が阻害されて死亡す
る個体の割合が多くなる。成虫飼育の環境条件としては
温度22〜28℃、湿度60〜70%、光周期16明8
暗、照度3000〜5000Luxが好ましい。照度が
500Lux以下では、トンボは正常に飛ぶことができ
ず餌の摂取や交尾を行うことができない。成虫を25℃
で飼育した場合、羽化後4〜5日目で交尾し、産卵を開
始する。産卵はほとんど毎日行い、アジアイトトンボで
1頭の平均産卵回数は13回で、1頭の一生涯の産卵数
は約2400〜約4000個であることが明らかになっ
た。
In the method of the present invention, the breeding temperature of the damselfly larva is preferably in the range of 22 to 28 ° C. Breeding is possible at temperatures lower than that, for example, 15 ° C or 20 ° C, but when breeding at such temperature, humor beetles and the like adhere to the surface of the body because each age period becomes long, and molting or The proportion of individuals who die due to impaired motor function increases. The environmental conditions for adult breeding are temperature 22-28 ° C, humidity 60-70%, photoperiod 16 light 8
Darkness and illuminance of 3000 to 5000 Lux are preferable. When the illuminance is 500 Lux or less, the dragonfly cannot normally fly and cannot feed or mate. 25 ° C for adults
In the case of breeding in (1), mating is carried out 4 to 5 days after emergence, and spawning is started. The eggs were laid almost every day, and it was revealed that the average number of eggs laid by the Asian damselfly was 13 and the number of eggs laid during one lifetime was about 2400 to about 4000.

【0010】産卵・卵の管理方法は、卵が産みつけられ
た紙を取り出し、糞やゴミを上水で洗い流し、シャーレ
ーまたはプラスチック容器に入れ、これに飼育水を入れ
て保存する。容器内の飼育水は、週に一回程度の水交換
を行う。卵は、アオモンイトトンボで産卵後1日目の長
軸の平均が0.80mm、卵幅の平均が0.15mmで
あり、その後わずかに大きくなった後に、ふ化までまも
なくなると長軸の平均が0.88mm、卵幅の平均が
0.21mmとなる。アジアイトトンボでは、産卵後1
日目の長軸の平均が0.82mm、卵幅の平均が0.1
6mmで、7日目には長軸の平均が0.92mm、卵幅
の平均が0.22mmとなり、アジアイトトンボの方が
やや大きい。ふ化までの日数は、20℃で飼育した場合
にアジアイトトンボで約12日、アオモンイトトンボで
約14日間である。30℃では、アジアイトトンボで約
7日、アオモンイトトンボで約8日間でふ化する。ふ化
率はアジアイトトンボ、アオモンイトトンボとも85〜
90%である。
As for the method of laying eggs, the paper on which the eggs are laid is taken out, the feces and dust are rinsed with clean water, put in a Petri dish or a plastic container, and breeding water is put in this for storage. The breeding water in the container is changed once a week. The eggs have an average long axis of 0.80 mm and an average egg width of 0.15 mm on the 1st day after spawning in Aomon damselfly. The average egg width is 0.88 mm and 0.21 mm. In Asian damselflies, 1 after spawning
The average of the long axis of the day is 0.82 mm and the average of the egg width is 0.1
At 6 mm, the average of the major axis was 0.92 mm and the average of the egg width was 0.22 mm on the 7th day, indicating that the Asian damselfly is slightly larger. The days until hatching are about 12 days for Asian damselfly and about 14 days for Aommon damselfly when breeding at 20 ° C. At 30 ° C, it hatches in Asia damselfly in about 7 days and in Aomon damselfly in about 8 days. Hatching rate is 85 to 85 for both Asian damselfly and Aomon damselfly.
90%.

【0011】[0011]

【発明の効果】本発明方法によれば、イトトンボ類の幼
虫を個別に飼育し、餌としてワムシ及び/又はミジンコ
を与え、幼虫の成長に応じて体長に合わせて容量の大き
な飼育容器を用いることにより、ふ化後の幼虫を終齢幼
虫まで共喰いを防いで歩留りよく飼育することができ
る。さらに本発明方法によれば、イトトンボ類の成虫を
屋内で飼育することができ、飼育空間が割合に省スペー
スである。しかも交尾後に人工的に産卵させるので容易
に採卵することができ、卵からの飼育も可能とするもの
である。また本発明の羽化容器によれば、羽化時に終齢
幼虫を溺れさせることなく羽化させることができる。以
上の本発明の飼育方法及び飼育容器によって、イトトン
ボ類の屋内での累代飼育が初めて可能となった。これに
より観賞用、環境教育の教材として利用され、また環境
科学の面から大気・水環境の指標生物として用いられる
イトトンボ類を大量にかつ歩留りよく飼育することがで
きる。さらに今まであまりなされていないイトトンボ類
を用いた遺伝的なまた生態学の研究にも大いに貢献する
ものと期待される。
According to the method of the present invention, larvae of damselflies are individually bred, rotifers and / or daphnia are fed as feed, and a breeding container having a large capacity is used according to the length of the larva according to the growth of the larvae. As a result, larvae after hatching can be raised up to the last-instar larvae with good yield by preventing co-eating. Further, according to the method of the present invention, adult damselflies can be bred indoors, and the breeding space is relatively space-saving. Moreover, since the eggs are artificially laid after mating, the eggs can be easily collected, and breeding from eggs is also possible. Moreover, according to the emergence container of the present invention, the last-instar larva can be emerged without drowning during emergence. The above breeding method and breeding container of the present invention made it possible for the first time to breed the damselfly indoors in successive generations. As a result, large numbers and high-yield breeding damselflies, which are used as ornamental and educational materials for environmental education and used as indicator organisms of the air and water environment from the viewpoint of environmental science, can be bred. Furthermore, it is expected to contribute greatly to genetic and ecological research using damselflies, which has not been carried out so far.

【0012】[0012]

【実施例】以下本発明を実施例に基づきさらに詳細に説
明する。 実施例1 屋内におけるアジアイトトンボの幼虫の飼育 材料及び方法 1)供試生物 アジアイトトンボ(わが国に広く分布し、定着してい
る)は、1993年2月2日、国立環境研究所実験圃場
内の有底枠葦原水槽から終齢幼虫を約100個体採集
し、同研究所内水生生物棟内において産卵させて採卵
し、ふ化した幼虫を用いた。 2)飼育条件 温度20±1℃、湿度60〜70%、光周期12明12
暗、飼育水の換水は2日に1回行った。 3)飼育方法 ふ化後24時間以内の1齢幼虫から個別に飼育し観察記
録した。飼育容器は、1齢〜4齢幼虫に12穴のマルチ
ウェルプレイト、5〜7齢幼虫に6穴のマルチウェルプ
レイト、その後、終齢幼虫から羽化まで200mlビー
カーを使用した。さらに、羽化容器には200mlビー
カーに高さ140mmの被覆体をかぶせた図1の容器を
使用した。餌としては、1齢〜3齢幼虫にワムシ(ツボ
ワムシ)、5齢〜終齢幼虫にミジンコ(タマミジンコ)
を与えた。4齢幼虫には、ワムシといっしょにミジンコ
の仔を与えた。1匹の幼虫に対して約10〜50個体/
日のワムシ及び/又はミジンコを与えた。 4)観察・測定方法 脱皮観察は、毎日餌付けと換水の前後に実体顕微鏡を使
って行い、脱皮していた場合には万能投影機で測定を行
った(20倍で測定した)。測定部位として頭幅と体長
を測定した。 頭幅:頭部両眼の外側 体長:頭部先端から第10腹節末端まで 測定には万能投影機(TEPCO社製)を使用し、ノギ
ス(ミズモト社製)で計測した。
EXAMPLES The present invention will be described in more detail based on the following examples. Example 1 Indoor Breeding of Asian Damselfly Larvae Materials and Methods 1) Test Species Asian damselfly (widely distributed and established in Japan) were tested on February 2, 1993 in the National Institute for Environmental Studies experimental field. Approximately 100 last-instar larvae were collected from the bottomed-frame reed basin, and the hatched larvae were used by laying eggs in the aquatic organism building in the same laboratory. 2) Rearing conditions Temperature 20 ± 1 ° C., humidity 60-70%, photoperiod 12 light 12
The water in the dark was changed once every two days. 3) Breeding method First-instar larvae within 24 hours after hatching were individually raised and observed and recorded. As a rearing container, a 12-well multiwell plate for 1st to 4th instar larvae, a 6well multiwell plate for 5th to 7th instar larvae, and a 200 ml beaker from the last instar larva to emergence were used. Further, as the emergence container, the container of FIG. 1 in which a 200-ml beaker was covered with a coating body having a height of 140 mm was used. As food, rotifers (roundworms) for the 1st to 3rd instar larvae and Daphnia magna (Buprestidae) for the 5th to final instar larva
Was given. 4th instar larvae were fed daphnia with rotifers. About 10-50 individuals per larva /
Day rotifer and / or daphnia were fed. 4) Observation / Measurement Method Molting observation was carried out daily with a stereoscopic microscope before and after feeding and water replacement, and when molting was carried out, measurement was performed with a universal projector (measured at 20 times). Head width and body length were measured as measurement sites. Head width: Outside of both heads Body length: From the tip of the head to the end of the 10th abdominal segment For measurement, a universal projector (manufactured by TEPCO) was used, and measurement was performed using calipers (manufactured by Mizumoto).

【0013】アジアイトトンボの幼虫の各齢数期間の観
察結果を表1に示す。ふ化してから幼虫になるまで平均
55日かかった。その間7〜8回の脱皮を行い、約70
%が羽化し残りの約30%の幼虫が9〜10回脱皮を繰
り返すものの羽化できずに死亡した。それまでの飼育途
中に死亡した個体はほとんどいなかった(48頭の中で
1頭死亡)。羽化した幼虫の齢数は8齢型と9齢型であ
った。齢数期間は、1齢数期は揃って3日間であった。
2齢〜4齢期の各日数は、4日〜10日間と加齢ごとに
日数が増し、5齢期になるとまた日数が短くなり、6〜
7齢期となるにしたがい日数が増した。終齢期間は平均
で13日間であった。表2に各齢数期における頭幅と体
長の測定結果を示す。8齢型のふ化直後(前幼虫pronym
phを除く)の1齢期の幼虫は、頭幅が平均0.35m
m、体長は平均1.13mmであった。8齢になった幼
虫の中で頭幅が2.73〜2.94mm、体長が11.
60〜13.50mmであったものは羽化し、残りの幼
虫はもう一度脱皮し9齢幼虫になった。9齢幼虫の中で
頭幅が2.88〜3.04mm、体長が11.75〜1
3.10mmであったものは羽化したが残りの幼虫は脱
皮を繰り返し続けたが羽化できずに死亡した。羽化して
成虫になるためには、ある一定以上のサイズとなること
が必要であると考えられる。頭幅が2.85mm以上で
体長が11.5mm以上でなければ羽化できず8齢にな
ってもこのサイズに達しないときは、もう一度脱皮して
このサイズまで成長し続けるようである。図5に8齢型
と9齢型の幼虫の体長の変化を齢数ごとに測定した結果
を示した。体長の指数回帰の式は、8齢型がy=0.8
2*exp(0.34x)、9齢型がy=0.82*e
xp(0.30x)であった(xは齢数、yは体長を表
わす。)。図6に、週ごとに体長を測定した結果を成長
曲線として示した。成長曲線は、y=21.30/(1
+18.56*exp(−0.50*t))であった
(tは週)。頭幅は、ある齢数から次の齢数まで8齢型
で平均1.35倍、9齢型で平均1.31倍に成長し
た。その間ほとんど変化がみられず、脱皮後に急激に大
きく成長した。体長は連続的に成長した。8齢型と9齢
型がいたのは、羽化までの齢数期が遺伝的に決定されて
いるのではなく、環境条件(例えば餌量、水質など)に
よることを示すものと考えられる。羽化した成虫の雌雄
比は1.3:2で、図7で示すように雄よりも雌の方が
約1〜2日遅く羽化した。
Table 1 shows the observation results of the larvae of the Asian damselfly during each age period. It took an average of 55 days from hatching to becoming larvae. During that time, molting is performed 7 to 8 times, and about 70
% Of the larvae emerged, and the remaining about 30% of the larvae failed to emerge and died, although molting was repeated 9 to 10 times. Almost no individual died during the breeding until then (one out of 48 died). The emerged larvae were 8th and 9th instars. The age period was 3 days in total for the first age period.
The number of days in the 2nd to 4th instars is 4 to 10 days, and the number of days increases with each aging.
The number of days increased as the child became 7 years old. The average age of termination was 13 days. Table 2 shows the measurement results of the head width and the body length at each age stage. Immediately after hatching of 8th instar type (prolarm pronym
1st instar larvae (excluding ph) have an average head width of 0.35 m
m, and the body length was 1.13 mm on average. Among the 8th instar larvae, the head width is 2.73 to 2.94 mm and the body length is 11.
Those having a diameter of 60 to 13.50 mm emerged and the remaining larvae molted once more to become 9th instar larvae. Among 9th instar larvae, head width is 2.88 to 3.04 mm and body length is 11.75 to 1.
Those with a length of 3.10 mm emerged but the remaining larvae continued to molt repeatedly but died without being able to emerge. It is considered that the size of a certain size or more is necessary for the adults to emerge and emerge. If the head width is 2.85 mm or more and the body length is 11.5 mm or more, it cannot emerge and if it does not reach this size even at the age of eight, it seems that it molts again and continues to grow to this size. FIG. 5 shows the results of measuring the change in body length of the 8th and 9th instar larvae at each age. The formula for exponential regression of body length is y = 0.8
2 * exp (0.34x), y = 0.82 * e for 9th year type
It was xp (0.30x) (x represents age and y represents body length). In FIG. 6, the result of measuring the body length every week is shown as a growth curve. The growth curve is y = 21.30 / (1
It was + 18.56 * exp (-0.50 * t)) (t is a week). The head width grew from a certain age group to the next age group on average of 1.35 times in the 8-year-old type and 1.31 times in the 9-year-old type. During that time, almost no change was observed, and after molting, it grew rapidly and greatly. Body length grew continuously. The presence of the 8th and 9th instars is considered to indicate that the age stage until emergence is not genetically determined, but depends on environmental conditions (eg, feed amount, water quality, etc.). The adult male / female ratio of the emerged adults was 1.3: 2, and the female emerged about 1-2 days later than the male as shown in FIG. 7.

【0014】[0014]

【表1】 [Table 1]

【0015】[0015]

【表2】 [Table 2]

【0016】実施例2 実験室内におけるアジアイトトンボの幼虫の飼育 材料及び方法 1)供試生物 アジアイトトンボの成虫は実施例1で羽化した成虫を継
続して飼育し、以下の実験に用いた。 2)飼育条件 光周期16明8暗、気温25±2℃、湿度60〜70
%、飼育ケージは奥行き31.5cm×幅18.5cm
×高さ20cmのバルサ材を骨組みとしたものにサラン
のネットを張りつけたもの(図2)を使用した。各ケー
ジに1ペアずつ、No.1〜4までの4ペアを飼育した。
餌は、ユスリカ(C. yoshimatui) を各ケージに対し10
〜50個体/日与えた。 3)採卵方法 飼育ケージ底部にプラマット(ニッソー社製)を敷いて
水に浸し、その上に水に浸したろ紙又はインクの吸い取
り紙を敷き(図3)、そこに産卵させ、翌日その紙から
採卵して産卵数をかぞえた。
Example 2 Breeding of Asian damselfly larvae in the laboratory Material and method 1) Specimens The adult adult damselfly of the Asian damselfly was bred by the adults emerged in Example 1 and used in the following experiments. 2) Rearing conditions 16 light cycles, 8 dark cycles, 25 ± 2 ° C temperature, 60-70 humidity
%, The breeding cage is 31.5 cm deep x 18.5 cm wide
B. A balsa material having a height of 20 cm and a Saran net attached to a skeleton (FIG. 2) was used. 4 pairs of Nos. 1 to 4 were bred, one pair in each cage.
The bait is 10 C. yoshimatui for each cage.
~ 50 individuals / day were fed. 3) Egg collection method Plammat (manufactured by Nisso Corporation) is laid on the bottom of the breeding cage, soaked in water, and a filter paper or ink blotter soaked in water is laid on it (Fig. 3), and eggs are laid there. Eggs were collected and the number of eggs was counted.

【0017】アジアイトトンボの成虫が25℃において
成熟までに要する日数は、4〜5日であった。成熟して
いるかどうかの判断は、体色の変化を規準とした。交尾
行動もほとんど4〜5日目に行われた。点灯2〜3分後
にオスはメスをめがけて素早く飛びかかり、交尾行動に
移行した。産卵までの日数も4〜5日であった。表3
に、交尾回数、交尾時間を示す。平均交尾回数は2.7
回で平均交尾時間は、3時間28分であった。これは2
回目以上の交尾時間であり、1回目の交尾時間はいずれ
も短く平均で1時間35分であった。表4に産卵回数、
産卵数、寿命を示す。1頭の産卵回数の平均は約13回
であった。最高産卵回数は19回であった。図8は、産
卵回数と産卵数を羽化後の日数に対して図示したもので
ある。一頭の1回の産卵数の平均は248個で、一生涯
の産卵数の平均は3212個であった。最高産卵数は4
405個であった。No.1のペアのメスは死亡する前日
まで毎日産卵し続けた。寿命は、雄が平均10.5日、
雌が平均21.5日と雌のほうが11日間長く生存し
た。雌は一度産卵場所を学習した個体は容易に何度も産
卵を行うようである。メスは、産卵間近になるとケージ
の底を歩き回り産卵場所を探し求め、水分を十分に含ん
だろ紙又はインクの吸い取り紙に産卵した。アジアイト
トンボの場合、連結産卵は行わず、メスが産卵行動を行
っているときオスはケージの上のほうでじっと止まって
いた。メスは、産卵後ただちに飛び立ち餌を捕食した。
成虫は羽化後、成長にともない体色が変化し、雌は1〜
3日目にかけて薄いオレンジ色が徐々に濃くなり、4日
目には茶色(成熟した色)に変化した。その後ほとんど
変化はなく、15〜20日を過ぎると羽根の中央部分よ
りやや先の方からちぎれてないものが多くなり、頭頂部
と腹部にカビのような白い色が付き、この色がではじめ
ると餌もあまり食べなくなり老齢となり、数日後に死亡
することを確認した。
The number of days required for adult Asian damselfly to mature at 25 ° C. was 4 to 5 days. The judgment of maturity was based on the change in body color. Mating behaviors were also performed almost every 4-5 days. Two to three minutes after the light was turned on, the male quickly jumped at the female and transitioned to mating behavior. The number of days until spawning was also 4 to 5 days. Table 3
Shows the number of matings and mating time. Average mating frequency is 2.7
The average mating time was 3 hours and 28 minutes. This is 2
The mating time was at least the first time, and the first mating time was short and averaged 1 hour and 35 minutes. Table 4 shows the number of eggs laid,
Shows the number of eggs laid and the lifespan. The average number of eggs laid by one was about 13 times. The maximum number of eggs was 19 times. FIG. 8 shows the number of eggs laid and the number of eggs laid with respect to the number of days after emergence. The average number of eggs laid once per animal was 248, and the average number of eggs laid once in a lifetime was 3212. Maximum egg production is 4
It was 405 pieces. No. 1 pair of females continued to lay eggs daily until the day before their death. Males have an average lifespan of 10.5 days,
Females survived an average of 21.5 days and females survived 11 days longer. Females once learned the spawning place, and individuals seem to easily spawn many times. When the female was near to spawning, she walked around the bottom of the cage to find a spawning site, and spawned on a paper or ink blotter that did not contain enough water. In the case of the Asian damselfly, the males stayed still in the upper part of the cage when the females were performing the spawning action without spawning. The female flew immediately after spawning and preyed on the bait.
After emergence, adult adults change their body color with growth, and females
The pale orange gradually became darker on the 3rd day, and changed to brown (mature color) on the 4th day. There is almost no change after that, and after 15 to 20 days, there are many things that are not broken off from the tip of the center part of the blade, and the top and abdomen have a white color like mold, and when this color starts It was confirmed that they did not eat much food, became old, and died a few days later.

【0018】[0018]

【表3】 [Table 3]

【0019】[0019]

【表4】 [Table 4]

【0020】実施例3 水温25℃におけるアジアイトトンボとアオモンイトト
ンボの幼虫の成長についての比較 材料及び方法 1)供試生物 アジアイトトンボの幼虫は、実施例2で採卵しふ化した
ものを用いた。アオモンイトトンボは、1993年6月
28日、国立環境研究所水生生物棟屋外水槽付近を飛翔
していた成虫を採取し産卵させ、ふ化した幼虫を用い
た。 2)飼育条件 光周期16明8暗、水温25±1℃、湿度60〜70
%、飼育水として上水を3日以上ばっ気したものを用
い、換水は2日に1度行った。 3)飼育・観察方法 実施例1と同様に飼育し、観察記録した。
Example 3 Comparison of larvae growth of Asian damselfly and Aomon damselfly at a water temperature of 25 ° C. Materials and methods 1) Specimens The larvae of Asian damselfly, which had been egg-covered and hatched in Example 2, were used. On June 28, 1993, Aomon damselfly used adult larvae that had been flying near the outdoor aquarium of the National Institute for Environmental Studies, aquariums, to lay eggs, and hatched larvae. 2) Breeding conditions 16 photoperiods, 8 dark, water temperature 25 ± 1 ° C, humidity 60-70
%, The water used as breeding water was aerated with clean water for 3 days or more, and the water was replaced once every 2 days. 3) Breeding / observation method Breeding and observation were carried out in the same manner as in Example 1.

【0021】水温25℃で飼育したアジアイトトンボの
幼虫には8齢型と9齢型がおり、アオモンイトトンボで
は9齢型と10齢型がいた。どちらの場合も各齢数の割
合は、約10:1であった。表5に、アジアイトトンボ
とアオモンイトトンボの各齢数期間の観察結果を示す。
ふ化してから成虫になるまでにアジアイトトンボで平均
32日間、アオモンイトトンボで平均36日間かかっ
た。アジアイトトンボは、1齢〜6齢まで各齢数期の平
均日数は約3日で7齢期は約4日であった。アオモンイ
トトンボは、1齢〜7齢まで各齢の平均日数は約3日で
8齢期が約4日であった。終齢期間はどちらとも約10
日であった。飼育途中に死亡した個体はほとんどなくア
ジアイトトンボ、アオモンイトトンボとも羽化率96%
であった。各齢数における頭幅と体長の測定結果を表6
に示す。アオモンイトトンボは1齢から8齢まで頭幅、
体長ともわずかに小さいが、終齢でアジアイトトンボを
追い越しアジアイトトンボより平均で頭幅が1.16
倍、体長が1.26倍大きい。図9に齢ごとの体長の変
化を示した。アジアイトトンボの齢ごとの体長の指数回
帰の式はy=0.84*exp(0.33x)で、アオ
モンイトトンボの齢ごとの体長の指数回帰の式は、y=
0.75*exp(0.33x)である(xは齢数、y
は体長)。図10に、アジアイトトンボとアオモンイト
トンボの成長曲線を示した。週ごとの成長曲線の式は、
アジアイトトンボが、y=15.97/(1+18.5
3*exp(−1.15*t))で、アオモンイトトン
ボが、y=23.49/(1+28.70*exp(−
1.03*t))であった(tは週)。アジアイトトン
ボを20℃で飼育した実験(実施例1)と比較して羽化
までの日数が23日も早く、羽化率も高く、ツリガネム
シなどの害もなく良い成績であった。
The larvae of Asian damselfly bred at a water temperature of 25 ° C. were of the 8th and 9th instar larvae, and the Aomon damselfly were 9th and 10th instar. In each case, the age ratio was about 10: 1. Table 5 shows the observation results of the Asian damselfly and the blue damselfly during each age period.
From hatching to adulthood, it took an average of 32 days in the Asian damselfly and 36 days in the Aomon damselfly. The Asian damselfly had an average number of days of about 3 days in each age period from 1 to 6 years of age and about 4 days of 7 years of age. The average number of days of each age of Aomon damselfly was about 3 days from the 1st to the 7th, and the age of the 8th was about 4 days. Both are about 10 years old
It was a day. Almost no individuals died during breeding, both Asian damselfly and Aomon damselfly have a rate of 96%.
Met. Table 6 shows the measurement results of head width and body length at each age.
Shown in Aomoni dragonfly is 1 to 8 years old,
Although the body length is slightly shorter, it passes the Asian damselfly at the end of its life and has an average width of 1.16 than the Asian damselfly.
Twice as long and 1.26 times as long. FIG. 9 shows changes in body length with age. The formula for exponential regression of body length by age of Asian damselfly is y = 0.84 * exp (0.33x), and the formula for exponential regression of body length by age of Aomon damselfly is y =
0.75 * exp (0.33x) (x is age, y
Is the body length). Fig. 10 shows the growth curves of the Asian damselfly and the Aomon damselfly. The formula for the weekly growth curve is
The Asian damselfly, y = 15.97 / (1 + 18.5)
At 3 * exp (-1.15 * t)), the Aommon dragonfly has y = 23.49 / (1 + 28.70 * exp (-
1.03 * t)) (t is week). Compared with the experiment (Example 1) in which the Asian damselfly was reared at 20 ° C, the number of days until emergence was 23 days earlier, the emergence rate was high, and good results were obtained without damage such as Vorticella.

【0022】[0022]

【表5】 [Table 5]

【0023】[0023]

【表6】 [Table 6]

【0024】実施例4 実験室内におけるアオモンイトトンボの成虫の飼育 材料及び方法 1)供試生物 アオモンイトトンボは、実施例3で羽化したものを使用
した。 2)飼育条件・採卵方法 実施例2と同様の条件、飼育ケージを用いて、各ケージ
に1ペアずつ、No.1〜5までの5ペアを飼育し、実
施例2と同様に採卵した。
Example 4 Rearing of adults of the blue-spotted damselfly in the laboratory Materials and methods 1) Specimen of the test Aomon damselfly which was emerged in Example 3 was used. 2) Breeding Conditions and Egg Collection Method Using the same conditions and breeding cages as in Example 2, one pair for each cage, No. 5 pairs of 1 to 5 were bred and eggs were collected in the same manner as in Example 2.

【0025】アオモンイトトンボが成熟までに要する日
数は、アジアイトトンボとほとんど変わりなく4〜5日
であった。成熟しているかどうかの判断は、体色の変化
を基準とした。交尾行動もほとんど4〜5日目に行われ
た。表7に産卵回数、産卵数及び寿命を、表8に交尾時
間と回数を示す。交尾回数は最も多いもので11回、少
ないものでは1回だけであった。平均交尾時間は、6時
間43分でアジアイトトンボよりも約3時間30分長か
った。1頭の産卵回数の平均は4回であった。最高産卵
回数は7回であった。1頭の1回の産卵数は平均で約4
21個で、アジアイトトンボよりも1.78倍多い。一
生涯の産卵数の平均は2034個であった。最高産卵数
は、2962個であった。寿命は、雄が平均11.2
日、雌が平均16.2日と雌のほうが約5日間長く生存
した。NO.1のペアは、連続10日間毎日交尾し、雄
が25日間生存した。アジアイトトンボと同じく雌は産
卵間近になると、ケージの底を歩き回り産卵場所を探し
求め、水分を十分に含んだろ紙又はインクの吸い取り紙
に産卵した。
The number of days required for maturity of Aomon damselfly was 4 to 5 days, which was almost the same as that of Asian damselfly. The judgment of maturity was based on the change in body color. Mating behaviors were also performed almost every 4-5 days. Table 7 shows the number of laying eggs, the number of laying eggs and the lifespan, and Table 8 shows the mating time and the number of laying. The highest number of matings was 11 and the lowest was only 1. The average mating time was 6 hours and 43 minutes, which was about 3 hours and 30 minutes longer than that of the Asian damselfly. The average number of eggs laid by one was 4 times. The maximum number of eggs was 7 times. The average number of eggs spawned per animal is about 4
The number is 21, which is 1.78 times more than the Asian damselfly. The average number of eggs laid during a lifetime was 2034. The highest egg production was 2962. Males have an average lifespan of 11.2
On average, the females survived 16.2 days on average, and the females survived longer for about 5 days. NO. One pair mated daily for 10 consecutive days, with males surviving 25 days. When the female damselflies, like the damselfly, approached spawning, they walked around the bottom of the cage to find a spawning site and spawned on paper or ink blotter that did not contain enough water.

【0026】[0026]

【表7】 [Table 7]

【0027】[0027]

【表8】 [Table 8]

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明のイトトンボ類の羽化容器に係る一実施
例の斜視図である。
FIG. 1 is a perspective view of an embodiment of an emergence container for damselflies of the present invention.

【図2】イトトンボ類の成虫の飼育ケージの斜視図であ
る。
FIG. 2 is a perspective view of a breeding cage for adult damselflies.

【図3】本発明の自由産卵容器に係る一実施例の断面図
である。
FIG. 3 is a cross-sectional view of an embodiment relating to the free spawning container of the present invention.

【図4】本発明の集中産卵容器に係る一実施例の斜視図
である。
FIG. 4 is a perspective view of an embodiment relating to the concentrated egg-laying container of the present invention.

【図5】アジアイトトンボの幼虫を水温20±1℃で飼
育した場合の体長の変化を示すグラフである。
FIG. 5 is a graph showing changes in body length when Asian dragonfly larvae are reared at a water temperature of 20 ± 1 ° C.

【図6】アジアイトトンボの幼虫を水温20±1℃で飼
育した場合の成長曲線である。
FIG. 6 is a growth curve of larvae of Asian damselfly bred at a water temperature of 20 ± 1 ° C.

【図7】アジアイトトンボの雄と雌の羽化数を比較した
グラフである。
FIG. 7 is a graph comparing the number of emerged male and female Asian damselfly.

【図8】アジアイトトンボの産卵数を示すグラフであ
る。
FIG. 8 is a graph showing the number of Asian damselfly laying eggs.

【図9】水温25±1℃で飼育したアジアイトトンボ、
アオモンイトトンボの幼虫の体長の変化を示すグラフで
ある。
FIG. 9 Asian damselfly bred at a water temperature of 25 ± 1 ° C.
It is a graph which shows the change of the body length of the larva of Aomon damselfly.

【図10】水温25±1℃で飼育したアジアイトトン
ボ、アオモンイトトンボの幼虫の成長曲線を示すグラフ
である。
FIG. 10 is a graph showing growth curves of larvae of Asian damselfly and Blue-necked damselfly bred at a water temperature of 25 ± 1 ° C.

【図11】アオモンイトトンボの産卵数を示すグラフで
ある。
FIG. 11 is a graph showing the number of eggs laid by the blue-toothed damselfly.

【図12】イトトンボ類の生活史を示す図である。FIG. 12 is a diagram showing the life history of damselflies.

【符号の説明】[Explanation of symbols]

1 羽化容器 2 終齢幼虫の飼育容器 3 穴 4 蓋体 5 棒状体 6 被覆体 11 成虫飼育ケージ 12 柱 13 網状体 14 マット 15 ろ紙又はインクの吸い取り紙 16 シャーレー 17 被覆体 1 eclosion container 2 breeding container for last-instar larva 3 hole 4 lid 5 rod 6 cover 11 adult breeding cage 12 column 13 net body 14 mat 15 filter paper or ink blotter 16 petri dish 17 cover

Claims (8)

(57)【特許請求の範囲】(57) [Claims] 【請求項1】 イトトンボ類の幼虫に飼料としてワムシ
及び/又はミジンコを与えるとともに共喰いしないよう
に個別に飼育することを特徴とするイトトンボ類の屋内
飼育法。
1. An indoor breeding method for damselflies, which comprises feeding rotifer and / or daphnia as feed to larvae of damselfly and individually breeding them so as not to co-eating.
【請求項2】 飼料として1齢〜3齢幼虫にツボワムシ
を、4齢幼虫にツボワムシ及びタマミジンコを、5齢〜
終齢幼虫にタマミジンコをそれぞれ1頭に対して10〜
50個体/日与えるとともに、幼虫の成長に応じて、飼
育容器の大きさを変える請求項1記載の方法。
2. As feeds, the 1st to 3rd instar larvae of the aphid rotifer and the 4th instar larvae of the aphid rotifer and the larva of the 5th instar.
10 to each terminal larva
The method according to claim 1, wherein the size of the breeding container is changed according to the growth of the larva while feeding 50 individuals / day.
【請求項3】 イトトンボ類の成虫に飼料として蚊を与
え、網状体で囲んだ飼育ケージ内で飼育することを特徴
とするイトトンボ類の屋内飼育法。
3. An indoor breeding method for damselflies, which comprises feeding mosquitoes to adult adults of damselflies as feeds and breeding them in breeding cages surrounded by a net.
【請求項4】 飼料としてユスリカを1頭に対して10
〜50個体/日与える請求項3記載の方法。
4. Chironomid as a feed is 10 per 1
The method according to claim 3, wherein about 50 individuals / day are given.
【請求項5】 水で濡らしたろ紙又はインクの吸い取り
紙に産卵させる請求項3記載の方法。
5. The method according to claim 3, wherein the eggs are laid on a filter paper moistened with water or an ink blotter paper.
【請求項6】 水温、気温ともに22〜28℃で飼育す
る請求項1〜5のいずれか1項記載の方法。
6. The method according to claim 1, wherein both the water temperature and the air temperature are raised at 22 to 28 ° C.
【請求項7】 終齢幼虫の飼育容器と、終齢幼虫が通過
できる穴を設けた蓋体、飼育容器の底付近から蓋体の穴
を通って上方へ至る棒状体及び棒状体上方から飼育容器
上部を覆う被覆体を有してなることを特徴とするイトト
ンボ類の羽化容器。
7. A container for holding last-instar larvae, a lid provided with a hole through which the last-instar larva can pass, a rod-shaped body extending from the vicinity of the bottom of the rearing container to the upper side through the hole of the lid, and rearing from above the rod-shaped body. An emergence container for damselflies, which comprises a cover for covering the upper part of the container.
【請求項8】 少なくとも一部に網状体を用いて上部が
覆われた容器と、容器の底面上に載置されたろ紙又はイ
ンクの吸い取り紙を有してなり、ろ紙又はインクの吸い
取り紙を水で濡らしてその上に産卵させることを特徴と
するイトトンボ類の産卵容器。
8. A container, at least a part of which is covered with a mesh body and whose top is covered, and a filter paper or ink blotter placed on the bottom surface of the container. A spawning container for damselflies, which is characterized by being wet with water and spawning on it.
JP5317496A 1993-11-25 1993-11-25 Indoor breeding method for damselflies and breeding containers used therefor Expired - Fee Related JP2529643B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5317496A JP2529643B2 (en) 1993-11-25 1993-11-25 Indoor breeding method for damselflies and breeding containers used therefor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5317496A JP2529643B2 (en) 1993-11-25 1993-11-25 Indoor breeding method for damselflies and breeding containers used therefor

Publications (2)

Publication Number Publication Date
JPH07143832A JPH07143832A (en) 1995-06-06
JP2529643B2 true JP2529643B2 (en) 1996-08-28

Family

ID=18088883

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5317496A Expired - Fee Related JP2529643B2 (en) 1993-11-25 1993-11-25 Indoor breeding method for damselflies and breeding containers used therefor

Country Status (1)

Country Link
JP (1) JP2529643B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014004348A (en) * 2012-05-29 2014-01-16 Daiken Corp Laundry drying apparatus above washing machine
CN105284742A (en) * 2015-11-16 2016-02-03 中国水产科学研究院淡水渔业研究中心 Rotifer continuous culturing system and rotifer continuous culturing method

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106804538B (en) * 2017-03-14 2023-08-11 吉林省养蜂科学研究所(吉林省蜂产品质量管理监督站、吉林省蜜蜂遗传资源基因保护中心) Queen bee quality detector and detection method thereof
CN108371149A (en) * 2018-04-27 2018-08-07 福建省农业科学院植物保护研究所 A kind of device and its application method of interior mass rearing planthopper

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014004348A (en) * 2012-05-29 2014-01-16 Daiken Corp Laundry drying apparatus above washing machine
CN105284742A (en) * 2015-11-16 2016-02-03 中国水产科学研究院淡水渔业研究中心 Rotifer continuous culturing system and rotifer continuous culturing method

Also Published As

Publication number Publication date
JPH07143832A (en) 1995-06-06

Similar Documents

Publication Publication Date Title
Altig et al. Morphological diversity and evolution of egg and clutch structure in amphibians
Seeley Honeybee ecology: a study of adaptation in social life
Brakefield et al. Phenotypic plasticity, seasonal climate and the population biology of Bicyclus butterflies(Satyridae) in Malawi.
Ellis et al. Predation by Notonecta undulata (Heteroptera: Notonectidae) on larvae of the yellow-fever mosquito
KR101517309B1 (en) Mite composition, use thereof, method for rearing a phytoseiid predatory mite, rearing system for rearing said phytoseiid predatory mite and methods for biological pest control on a crop
CN101026954B (en) Growing system for aquatic animals
Ettensohn et al. Development of sea urchins, ascidians, and other invertebrate deuterostomes: experimental approaches
Alikunhi Notes on the bionomics, breeding and growth of the murrel, Ophicephalus striatus Bloch
Schausberger Juvenile survival and development in Euseius finlandicus, Typhlodromus pyri and Kampimodromus aberrans (Acari: Phytoseiidae) feeding on con-and heterospecific immatures
Young Ascidian cannibalism correlates with larval behavior and adult distribution
CN108012995A (en) A kind of indoor feeding method and device of green wing thin,tough silk open country snout moth's larva
Gordon Some notes on small kelp forest fish collected from Saccorhiza polyschides bulbs on the Isle of Cumbrae Scotland
Kinne Successful re-introduction of the newts Triturus cristatus and T. vulgaris
JP2529643B2 (en) Indoor breeding method for damselflies and breeding containers used therefor
Monentcham et al. Biology and prospect for aquaculture of African bonytongue, Heterotis niloticus (Cuvier, 1829): A review
Johnson Mating and oviposition of damselflies in the laboratory
Norden et al. Biology and behavior of a seasonally aquatic bee, Perdita (Alloperdita) floridensis Timberlake (Hymenoptera: Andrenidae: Panurginae)
Wolf et al. Oviposition site selection and spatial predictability of female white‐faced dragonflies (Leucorrhinia intacta)(Odonata: Libellulidae)
Friis et al. An insect larva with a ‘pig-snout’: structure and function of the nasale of Hyphydrus ovatus L.(1763)(Coleoptera: Dytiscidae)
Keremah et al. Aspects of the reproductive biology of Tilapia guineensis (Bleeker, 1862) under laboratory conditions
Ross et al. The life cycle of Heteropoda venatoria (Linnaeus)(Araneae: heteropodidae)
Alworth An experimental test of the function of sticks in the nests of House Wrens
Wright Smith The Biology of Perla Immarginata Say.
Korboot Biological studies of some caddis flies (Trichoptera) from south east Queensland
Fives An account of the eggs and developmental stages of Montagu's blenny, Coryphoblennius galerita (L.), with notes on the reproductive behaviour of the adults

Legal Events

Date Code Title Description
R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

LAPS Cancellation because of no payment of annual fees