Ecological studies on the Japanese mantis shrimp, Oratosquilla oratoria (DE HAAN). II. Egg laying and egg mass nursing behaviour in the Japanese mantis shrimp.
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- HAMANO Tatsuo
- Department of Fisheries, Faculty of Agriculture, Kyushu University
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- MATSUURA Shuhei
- Department of Fisheries, Faculty of Agriculture, Kyushu University
Bibliographic Information
- Other Title
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- シャコの産卵および卵塊保育行動
- シャコの産卵および卵塊保育行動〔英文〕
- シャコ ノ サンラン オヨビ ランカイ ホイク コウドウ エイブン
- Egg laying and egg mass nursing behavior in the Japanese mantis shrimp
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Abstract
The spawning and egg mass nursing behaviour, together with the change in external appearance of the egg mass, of the mud-dwelling Japanese mantis shrimp Oratosquilla oratoria were studied using artificial burrows in aquaria.<br> This species usually spawns in a supine posture in the burrow maintaining this posture with the back of abdomen and exopods of uropods against the wall of burrow for almost 3 h. The newly extruded egg mass is amorphous, but the female shrimp compacts it and then shapes it into a thick disc within 1 h and to a thin disc having a marginal turnup within 24 h of spawning. All maxillipeds excluding the raptorial claw are used for the nursing behaviour, i.e. spreading and folding the egg mass, so it is teased out and becomes a tuft shape after 3 days or so.<br> The second gee laying occurred in 2 females about 40 days after the first spawning of each individual at 25°C, and this fact suggests that O. oratoria may spawn more than once in a spawning season in natural warm waters.
Journal
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- NIPPON SUISAN GAKKAISHI
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NIPPON SUISAN GAKKAISHI 50 (12), 1969-1973, 1984
The Japanese Society of Fisheries Science
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Keywords
Details 詳細情報について
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- CRID
- 1390001206412102656
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- NII Article ID
- 130001543670
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- NII Book ID
- AN00193422
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- ISSN
- 1349998X
- 00215392
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- NDL BIB ID
- 3011369
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- Text Lang
- en
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- Data Source
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- JaLC
- IRDB
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed