Survival of deep-sea shrimp (Alvinocaris sp.) during decompression and larval hatching at atmospheric pressure
Survival of deep-sea shrimp (Alvinocaris sp.) during decompression and larval hatching at atmospheric pressure
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DOI：
10.1007/s10126-004-3050-0
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发表时间：
2005-08-01
影响因子：
3
通讯作者：
Aizawa, M
中科院分区：
文献类型：
--
作者：
Koyama, S;Nagahama, T;Aizawa, M
我们报告成功的幼体孵化后，减压到大气压的深海虾。在日本相模湾的Hatsushima岛外的冷泉点，使用压力恒定水族箱系统从1157 m的海洋深处采集了三个深海虾标本。基于细胞色素c氧化酶亚基基因序列对Alvinocaris sp.进行系统发育分析，证实该种为Alvinocaris属的一员。所有3个标本在逐步减压63天后均存活至大气压条件。其中两个标本含有卵，分别在完全减压后10天和16天孵化。虽然在大气压下饲养74天期间没有观察到虾幼虫的蜕皮，但幼虫在15天后发育出常规的暗适应眼睛。
We report successful larval hatching of deep-sea shrimp after decompression to atmospheric pressure. Three specimens of deep-sea shrimp were collected from an ocean depth of 1157 m at cold-seep sites off Hatsushima Island in Sagami Bay, Japan, using a pressure-stat aquarium system. Phylogenetic analysis of Alvinocaris sp. based on cytochrome c oxidase subunit gene sequences confirmed that these species were a member of the genus Alvinocaris. All 3 specimens survived to reach atmospheric pressure conditions after stepwise 63-day decompression. Two of the specimens contained eggs, which hatched after 10 and 16 days, respectively, of full decompression. Although no molting of the shrimp larvae was observed during 74 days of rearing under atmospheric pressure, the larvae developed conventional dark-adapted eyes after 15 days.