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首页> 外文期刊>Russian journal of marine biology >The Combined Effect of Temperature and Salinity on Development of the Sea Star Asterina pectinifera
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The Combined Effect of Temperature and Salinity on Development of the Sea Star Asterina pectinifera

机译：温度和盐度联合作用对海星果蝇Asterina pectinifera发育的影响

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摘要

The effect of various combinations of temperature, which increases from 14℃ up to 25℃ in the summer season, and salinity, which varies from 34 to 12 per thousand in the early stages of development of the sea star Asterina (= Patina) pectinifera (Mueller et Troschel) from Vostok Bay, Sea of Japan, was studied. The most vulnerable process in the early ontogenesis of A. pectinifera is its embryonal development, which is completed successfully within narrow ranges of temperature (20-22℃) and salinity (34-26 per thousand). The ability of gametes to fertilize was retained in wider ranges of temperature and salinity. The dipleurula was the most responsive of the larval stages; the resistance of blastula, bipinnaria, and brachiolaria at ages of 12.5 and 15.5 days was almost the same for fluctuations of temperature from 14 up to 25℃ and salinity from 34 to 18 and 16 per thousand. Settling of the brachiolaria and completion of metamorphosis were also responsive to variations in the environmental factors. Settling of the larvae was faster at 17℃ without illumination (on the 22nd-24th days of development) than at 22℃ with the day-night mode (27th-28th day of development). The lack of light apparently had a positive effect on the settling of the brachiolaria.
机译：温度的各种组合的影响，在夏季从14℃升高到25℃，以及盐度在海星Asterina（= Patina）果胶发育的早期阶段，从每千分之34升高到12。研究了来自日本海沃斯托克湾的Mueller et Troschel）。果胶曲霉早期成虫过程中最脆弱的过程是其胚胎发育，该胚胎发育在温度（20-22℃）和盐度（每千34-26）的狭窄范围内成功完成。配子受精的能力在较宽的温度和盐度范围内得以保持。胸膜幼虫期反应最灵敏。温度从14升高到25℃，盐度从每千分之34升高到18和16，在12.5和15.5日龄时，囊小球菌，双子叶植物和臂腕菌的抗性几乎相同。腕状的沉降和变态的完成也对环境因素的变化有反应。在没有光照的情况下（在发育的第22-24天），在17℃时幼虫的沉降要比在白天模式下（在发育的第27-28天）在22℃下的幼虫更快。光照不足显然对臂状ol虫的沉降有积极作用。

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