The effects of temperature on growth, development and settlement of northern rock sole larvae (Lepidopsetta polyxystra)
The effects of temperature on growth, development and settlement of northern rock sole larvae (Lepidopsetta polyxystra)
复制标题
温度对北方岩鳎幼虫（Lepidopsetta Polyxystra）生长、发育和定居的影响
DOI：
10.1111/fog.12084
复制
发表时间：
2014
影响因子：
2.6
通讯作者：
S. A. Haines
中科院分区：
文献类型：
--
作者：
B. Laurel;C. Danley;S. A. Haines
北方石鲽（Lopsettapolyxystra）是北太平洋重要的经济鱼类，也是研究白令海幼鱼向育苗场迁移的重点鱼种。然而，该物种的温度依赖性的生命率和定居动力学尚未详细描述。我们在实验室中饲养北方石鳎幼虫，以测量四种温度（2、4、7和10°C）下的生长、状况、发育和沉降参数。长度和质量测量的增长率随温度的增加，最好的非线性回归描述。体长-质量关系的残差与温度呈正相关，表明幼虫的状况也随温度的升高而增加。幼虫发育和定居在很大程度上取决于大小，导致幼虫阶段的持续时间减少，并在较高的温度下，由于更快速的增长，在高温下更早的定居。然而，在较冷的温度下，幼虫在给定的大小不太发达，但更有可能解决在较小的尺寸比幼虫在温暖的条件下饲养。这些温度响应参数可用于完善当前和未来的运输模式，在北太平洋不断变化的环境条件下的北方岩唯一幼虫。
Northern rock sole (Lepidopsetta polyxystra) is a commercially important fish in the North Pacific and a focal species in understanding larval transport to nursery grounds in the Bering Sea. However, the temperature-dependent vital rates and settlement dynamics for this species have not been described in detail. We reared northern rock sole larvae in the laboratory to measure growth, condition, development and settlement parameters across four temperatures (2, 4, 7 and 10°C). Both length and mass-measured growth rates increased with temperature and were best described by non-linear regression. Residuals of the length–mass relationships were positively related to temperature, indicating larval condition also increased with temperature. Larval development and settlement were largely size dependent, resulting in reduced larval stage duration and earlier settlement at higher temperatures owing to more rapid growth at elevated temperatures. However, larvae at colder temperatures were less developed at a given size, but more likely to settle at smaller sizes than larvae reared in warmer conditions. These temperature–response parameters can be used to refine current and future transport models for northern rock sole larvae under changing environmental conditions in the North Pacific.