Laboratory testing of a growth hypothesis for juvenile squid Loligo pealeii (Cephalopoda: Loliginidae)
Laboratory testing of a growth hypothesis for juvenile squid Loligo pealeii (Cephalopoda: Loliginidae)
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幼年乌贼 Loligo Pealeii（头足类：Loliginidae）生长假说的实验室测试
DOI：
10.1139/f01-030
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发表时间：
2001
影响因子：
2.4
通讯作者：
E. Grist
中科院分区：
文献类型：
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作者：
E. Hatfield;R. Hanlon;J. Forsythe;E. Grist
由于缺乏活体个体的原始生长数据，鱿鱼的生长建模受到了阻碍。我们在捕获后饲养野生幼鱿鱼 Loligo Pealeii 长达 97 天，以确定生长形式并测试 5°C 温差会显着影响生长速率的假设。使用静石年龄数据估计捕获前生长率（瞬时相对生长率或每天体重增加百分比 (IRGR)）为 811%。最多 97 个实验日的实验室生长速率分为两个阶段，其中大多数皮氏乳杆菌呈指数生长，尽管第 2 阶段的速率较慢。在这两个阶段中，在 20°C 下培养的皮氏乳杆菌的 IRGR 值均显着高于在 15°C 下培养的皮氏乳杆菌，分别为第 1 阶段的 4.36 和 2.69，第 2 阶段的 2.57 和 1.63。本研究提供鱿鱼生长阶段特定温度敏感性的有力证据。获得的 IRGR 值用于模拟自然孵化的鱿鱼的生长...
Growth modeling in squid has been hampered by a paucity of raw growth data on live individuals. We reared wild juvenile squid Loligo pealeii, for up to 97 days post capture, to determine the form of growth and to test the hypothesis that a 5°C difference in temperature would significantly affect growth rates. Precapture growth rates (the instantaneous relative growth rate or percent increase in body mass per day (IRGR)) of 811% were estimated using statolith age data. Laboratory growth rates over a maximum of 97 experimental days fell into two phases in which most L. pealeii grew exponentially, albeit at a slower rate in phase 2. In both phases, the values of IRGR were significantly higher for L. pealeii reared at 20°C than for those reared at 15°C, being respectively, 4.36 and 2.69 in phase 1 and 2.57 and 1.63 in phase 2. This study provides strong evidence of phase-specific temperature sensitivity in squid growth. The IRGR values obtained were used to simulate the growth of squid hatched in nature from...
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