Salinity tolerance of larvae in the Penicillate crab Hemigrapsus takanoi (DECAPODA: BRACHYURA: GRAPSIDAE)

Winda Mercedes Mingkid; Masashi Yokota; Seiichi Watanabe

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Salinity tolerance of larvae in the Penicillate crab Hemigrapsus takanoi (DECAPODA: BRACHYURA: GRAPSIDAE)

机译：Salinity tolerance of larvae in the Penicillate crab Hemigrapsus takanoi (DECAPODA: BRACHYURA: GRAPSIDAE)

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摘要

The penicillate crab, Hemigrapsus takanoi was established recently in Japan. Larval tolerance of this species to salinity is unknown. In laboratory experiments, we examined the salinity tolerance of larvae from hatching to the first juvenile stage. Successful development through metamorphosis occurred only in salinity of 25, 30 and 35 and average water temperature of 23.83 ± 0.91℃. Larvae in 10, 15 and 20 ‰ could not pass the megalopal stage, while in salinity 5 only 4 larvae successfully metamorphosed to the second zoeal stage but deceased two days later. Results of the salinity tolerance suggest that the zoea and megalopa of H. takanoi develop in higher salinity conditions and recruit to the wider salinity range when they reached juvenile and adult stage.

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来源
《うみ》 |2006年第4期|17-21|共5页
作者
Winda Mercedes Mingkid; Masashi Yokota; Seiichi Watanabe;
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作者单位

Department of Marine Biosciences, Tokyo University of Marine Science and Technology, 4-5-7 Konan, Minato-ku, Tokyo 108-8477, Japan;

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原文格式 PDF
正文语种英语
中图分类海洋学;
关键词
hemigrapsus takanoi; salinity tolerance; survival; development days;

Salinity tolerance of larvae in the Penicillate crab Hemigrapsus takanoi (DECAPODA: BRACHYURA: GRAPSIDAE)

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