WEKO3
アイテム
獨立生活撓脚類のノープリウスに関する研究
https://fra.repo.nii.ac.jp/records/2005030
https://fra.repo.nii.ac.jp/records/2005030180f49b0-3640-4970-95d5-93c55c7298b6
| Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2024-05-17 | |||||
| タイトル | ||||||
| タイトル | 獨立生活撓脚類のノープリウスに関する研究 | |||||
| 言語 | ja | |||||
| タイトル | ||||||
| タイトル | Study on free-living Cepepoda-Nauplius | |||||
| 言語 | en | |||||
| 言語 | ||||||
| 言語 | jpn | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
| 資源タイプ | departmental bulletin paper | |||||
| アクセス権 | ||||||
| アクセス権 | metadata only access | |||||
| アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
| 著者 |
花岡, 資
× 花岡, 資 |
|||||
| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Observing the metamorphosis of already known free living Copepoda-Nauplii, species names of which are in table, the auther showed that there are certain differences in the types of growth and forms of body and appendages according to their ecological type of life, creeping, pelaging or intermadiatng, and their forms are explainable from ecological points of vew. 1) There are two types of growth represented respectively by following equations i) B = bSª, ii) B = ß eᵅˢ, where B is length of body, S is the number of stage, and a. b, α and ß are constants. Pelaging Nauplii belong to the first type. And coastal, benthic and freshwater species belong to the second. This second type is recognised generally in crustacea as the law of Brooks, but here, even in other species but Copepoda, not a few Larval forms of pelagic life were shown to take this type in growth, 2) Growth of appendages is also represented by similar equations. 3) The original form of the 1st Antenna has three segments, but the 2nd has frequently a Subdivision. This develops more in pelager type of animals and not in creeping one. Number of setae on this appendage are also more numerous in pelager. 4) Exo- as well as Endopodite on the 2nd Antenna develop more as locomotive organs in more pelaging animals and have 7-8 segments on Exopodite. It also functions as feeding organ as well as a locomotive one in not so pelaging or creeping species, with a molar process on Coxopodite and fewer segmentations of Exopodite. In the true creeper there are only four segments on it, and Endopodite develops to a feeding organ of large arm with a movable knife on the tip. 5) In the pelager, the form of Mandible resembles to that of the 2nd Antenna, but has a molar process on Cuxopodite which is similar to that on the 2nd Antenna of the creeper. Namely, it can be said that Mandible of pelager has a similar function to the 2nd Antenna of the creeper. In Nauplius nearer to the creeper in nature, Mandible takes a special form as a pure feeding organ. These relations are represented very well by the form of Masticatory process on inside surface of Endopodite of Mandible: the pelager has only 5 setae as original form, and the more strengthened the creeping nature is, the more it transforms and develops, making larger one or two setae and projecting the process with other setae retroceding or degenerating on it. Calanina and Diaptmidae have the original form, Acartia has two special spines, and Temoridae is said to be an intermadiate. Those of Para- and Pseudocalanina as well as Eucalanina resemble to orginal form but one seta becomes comparatively larger. This chracteristic progresses gradually to Centropagidae and Pontellidae and till Suborder Podoplea, in which it changes to a feeding organ. Two types are seen in this Suborder, one of which has a long fork-form setae and it is thought to develop again till the type of the pelager such as Oithona and Oncaeia. In the other type it varies more to that of the true creaper, such as Harpacticidae, on which Endopodite degenerates perfectly, and process itself developes and projects leaving only a few setae and with a scissors or Knife on the tip. On the divide of these two types stands Cyclopina. Differing from other species of Harpacticidae, Longipedian Nauplius is a extreme pelager and its form of body and appendages resembles to that of pelager Centropagidae, though the adult of Longipedia is a true creeper. 6) From the point of view above mentioned, the auther discussed the forms of Nauplii phylogenetically and compaired them with the usual classification in adults. 7) The similalities and differences of the forms between other Crustacean-and Copepoda-Nauplius are discussed. 8) Key to the already known Copepod- Nauplii is given. | |||||
| 言語 | en | |||||
| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | 従来知られているCopepoda Naupliusを観察し,浮游性,匍匐性或はその中間型等色々の型を示す生態の相違を見せる各種·Nauplius の成長の型及び形態が夫々差異のあることを示し,又形態は体形及び特に附属肢の形に於て明かに差が表はれていること,又その生態と関連して説明しうることを述べた。1)成長は体長をB,Stage数をSとすると,B = bSª 及びB = ß eᵅˢ で表はしうる2群に分ち得る。第2のものは郎ち Brooks の法則とされるものであるが,第1群はPelagerで,第2群は沿岸,底棲乃至陸水のものが之に属する,Cpe,oda以外でるPelagerのものでは第1群の型に従うものが多くあることを示した。2)附属肢の伸長も式示し得,且伸長に関しては上記と同様の2型がある。3)第1触角は3節が原型であるが,第2節は更に分節の傾向を示しここに所謂区分を作る。比較的Pelagerのもの程区分発達し,Creeperには現われない。附属毛の数もPelager程多い。4)第2触角は游泳移動器官として浮游性强いもの程,内外葉共に発達し,特に外葉には多くの節(7~8)を発達さす。Pelagicの生態から離れる程,移動器官であると同時に摂餌器官としても用いられ,CoxopoditekMolar processを具へ,外葉の分節も少くなり,Creeperでは4節丈になる。反之内葉は発達して巨大な腕となり,その先端には可動のナイフを具へ攝餌器官となる。5)MandibleはPelagerで略第2触角に似た形で,唯CoxopoditeにCreeperの第2触角に於けると同様のMolar processを有する。卽ちPelagerのMandibleとCreeperの第2触角とは丁度同じ作用,意義を有すると言える。Creeperの性質を帶びる程Mandibleは純攝餌器官として特異な形をとるに至る。Mandible内葉第1節内面のMasticatory processは之等の関係を示す重要な目標となる。Pelagerは簡単な5本の毛をもつのみで,Creeperの性質の高まる程変化発達し,1又は2の特定の毛が大きく発達し,それに伴い,他の毛は漸時後退又は退化する。·Calanina,Diaptomidae基本型,Acartiaは2本の特殊の棘あり,Temoridaeな両者の中間型である。Para-及びPseudocalansは,Eucalanina と共に基本型に似て居るが,1本の毛が稍大きく発達している。この傾向は次第に発展してCentropagidae, Pontellidaeを経てPodopleaに至る。Podopleaでは2型が見られ,1は再びPelagerへの方向へ進むOithona, Oncaeiaの型で長いフオーク状の毛をつけ,他はCreeperへ進むものでHarpacticidaeの型となる。之ではProcess は発達して, 内葉本体は先端の附属毛を残すのみで完全に退化し，Process丈が大きく突出して,その先端の附風物は発達して鋏又はナイフ状になる。以上2型の分岐点に当るのはCydopinaである。親がCreeperであるのに対し,全くPelagerとして生活するLongipedia NaupliuslはHarpacticidlae と全く異り,全ての体制,附属肢の形態はCentropagidaeのものに似ている。6)以上の観察より,Naupliusの形態の系統発生学的の連関を考察し,又成体についての従来の分類と比較した。7)Copepoda以外のCrustacea Naupliusの形態とCopepoda Nauplius の夫との異同と特長を述べ。8)旣知Naupliusについての検索表を附した。 | |||||
| 言語 | ja | |||||
| 書誌情報 |
ja : 内海区水産研究所研究報告 en : Bulletin of Naikai Regional Fisheries Research Laboratory 巻 1, p. 1-36, ページ数 36, 発行日 1952-08 |
|||||
| 出版者 | ||||||
| 出版者 | 内海区水産研究所 | |||||
| 言語 | ja | |||||
| 出版者 | ||||||
| 出版者 | Naikai Regional Fisheries Research Laboratory | |||||
| 言語 | en | |||||
| ISSN | ||||||
| 収録物識別子タイプ | PISSN | |||||
| 収録物識別子 | 0497-5022 | |||||
| 書誌レコードID | ||||||
| 収録物識別子タイプ | NCID | |||||
| 収録物識別子 | AN00176718 | |||||
| 情報源 | ||||||
| 識別子タイプ | Local | |||||
| 関連識別子 | nai_k_0101 | |||||
| 関連サイト | ||||||
| 識別子タイプ | URI | |||||
| 関連識別子 | https://agriknowledge.affrc.go.jp/RN/2010841396 | |||||
| 言語 | ja | |||||
| 関連名称 | 日本農学文献記事索引(agriknowledge) | |||||
