Effects of temperature on development and survival of Todarodes pacificus embryos and paralarvae
Effects of temperature on development and survival of Todarodes pacificus embryos and paralarvae
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温度对太平洋Todarodes pacificus胚胎和副幼虫发育和存活的影响
DOI：
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发表时间：
1996
影响因子：
0.5
通讯作者：
Kumi Watanabe
中科院分区：
文献类型：
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作者：
Y. Sakurai;J. Bower;Yoshikazu Nakamura;Satoshi Yamamoto;Kumi Watanabe
以日本鱿鱼Todarodes pacific us （Steenstrup, 1880）为研究对象，在16℃（3 ~ 29℃）条件下对其胚胎发育和存活进行了研究，确定了发育和存活的最佳温度范围。正常胚胎发育发生在14.0°c至26.0°c之间，胚胎存活率最高发生在14°c之间。R和22.2°e。温度(T)与人工受精到孵化天数(D)的关系用多项式函数表示：In(D) = 4.73 0.227(T) + 0.00304(T)。根据对圈养产卵的两个卵群的观察，使用了一个改进的公式来估计自然产卵的卵群中卵的发育速度。结果表明，太平洋鳉鱼在温度高于12.1°e的水域中产卵，卵团在14.7°C至22.2°C之间的温度下分解，其结构维持4.0 ~ 9.5天。幼虫在孵化后存活长达13天，在15°e时存活率最高。
Embryonic development and survival of paralarvae of the Japanese common squid, Todarodes pacific us (Steenstrup, 1880), were examined at 16 temperatures (3-29°C) to determine the optimum temperature range for development and survival. Normal embryonic development occurred at temperatures between 14.0° and 26.0 e, with highest embryonic survival rates occurring between 14.r and 22.2°e. The relationship between temperature (T) and the number of days from artificial fertilization to hatching (D) is expressed by a polynomial function: In(D) = 4.73 0.227(T) + 0.00304(T). A modified fonnula, based on observations of two egg masses spawned in captivity, was used to estimate the development rate of eggs within naturally spawned egg masses. It is suggested that T. pacificus spawns in waters warmer than 12.1°e, and egg masses maintain their structure for 4.0 9.5 days before disintegrating at temperatures between 14.7° and 22.2°C. Paralarvae survived up to 13 days after hatching, with the highest survival rates occurring at 15°e.