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首页> 外文期刊>Bulletin of the Aquaculture Association of Canada >The Effect of Photoperiod on Maturation of Cultured Salmon in the Bay of Fundy
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The Effect of Photoperiod on Maturation of Cultured Salmon in the Bay of Fundy

机译:光周期对芬迪湾鲑鱼成熟的影响

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摘要

Continuous illumination of salmon cages significantly reduced maturation rates if the use of lights began in November (1.1 % mature fish in the lit cages vs. 21.5% in the control groups). When the onset of artificial lighting was delayed until February, the results were variable (rates of maturation ranged from 2% to 19.4%). The cost of purchasing, wiring and operating the lights was less than 5,000 dollar per cage, while the increase in the value of the fish exposed to 24-h light from November was greater than 100,000 dollar per 70-m cage.
机译:如果从11月开始使用照明灯,则对鲑鱼笼进行连续照明会大大降低成熟率(照笼中成鱼的比例为1.1%,对照组为21.5%)。当人造照明的发生推迟到二月份时,结果是可变的(成熟率从2%到19.4%不等)。每个笼子的购买,接线和操作灯的成本不到5,000美元,而从11月开始暴露于24小时光照的鱼的价值增加了​​每个70米笼子的100,000美元。

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