苏伊士运河蜘蛛蟹（Schizophrys aspera）（H. 米尔恩·爱德华兹，1834年：甲壳纲：短尾亚目：蜘蛛蟹科）的繁殖生物学

Reproductive biology of the Suez Canal spider crab Schizophrys aspera (H. Milne Edwards, 1834: Crustacea: Brachyura: Majidae).

作者信息

El-Serehy Hamed A, Al-Rasheid Khaled A, Ibrahim Nesreen K, Al-Misned Fahad A

机构信息

Marine Science Department, Faculty of Science, Port Said University, Port Said, Egypt ; Zoology Department, College of Science, King Saud University, Riyadh 11451, Saudi Arabia.

Zoology Department, College of Science, King Saud University, Riyadh 11451, Saudi Arabia.

出版信息

Saudi J Biol Sci. 2015 Nov;22(6):789-94. doi: 10.1016/j.sjbs.2015.07.003. Epub 2015 Jul 29.

DOI:10.1016/j.sjbs.2015.07.003

PMID:26587008

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC4625425/

Abstract

A reproductive biology study of the spider crab Schizophrys aspera (H. Milne Edwards, 1834) was conducted in the Suez Canal from July 2012 to June 2013. The annual sex ratio (Male:Female) of S. aspera was female biased with values of 1:1.25. Out of the four ovarian development stages of this crab, two stages were observed in the Suez Canal throughout the whole year. The ovigerous crab's carapace width varied from 28 to 52 mm. This crab species can spawn during most of the year in the canal water, with a peak during late spring and early winter. The fecundity of ovigerous females ranged between 2349 and 13600 eggs with a mean of 5494 ± 1486 eggs. Female crabs that reached sexual maturity exhibited a minimum carapace width varying between 22 and 46 mm, and fifty percentage of all ovigerous females showed a carapace width of 36 mm.

摘要

2012年7月至2013年6月，在苏伊士运河对糙裂蛛蟹（Schizophrys aspera，H. 米尔恩·爱德华兹，1834年）进行了生殖生物学研究。糙裂蛛蟹的年度性别比（雄性：雌性）偏向雌性，为1:1.25。在该蟹的四个卵巢发育阶段中，在苏伊士运河全年观察到两个阶段。抱卵蟹的头胸甲宽度在28至52毫米之间。这种蟹类在运河水域一年中的大部分时间都可产卵，在春末和初冬达到高峰。抱卵雌蟹的繁殖力在2349至13600枚卵之间，平均为5494±1486枚卵。达到性成熟的雌蟹头胸甲最小宽度在22至46毫米之间，所有抱卵雌蟹中有50%的头胸甲宽度为36毫米。