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effects of four factors on penaeus monodon post- larvae cannibalism
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نویسنده
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jiang s. ,zhou f.l. ,zeng x.y. ,yang q.b. ,huang j.h. ,yang l.s. ,jiang s.g.
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منبع
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iranian journal of fisheries sciences - 2021 - دوره : 20 - شماره : 2 - صفحه:547 -557
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چکیده
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In order to study the cannibalism behavior of penaeus monodon postlarvae, the effects of four internal and external factors, such as individual size, postlarvae density (50, 80, 110, 140, 170 ind/l), food abundance and aeration, on the cannibalism rate were analyzed. the results showed that the cannibalism rate was significantly affected by individual size, postlarvae density and food abundance. when postlarval density increased from 50 ind / l to 110 ind / l，the average daily cannibalism rate increased by 358.07%. when larval density was more than 110 ind/l，cannibalism rate slightly increased. the average daily cannibalism rate decreased by 69.81% in 20 ind/ml food group than that of nofood group. the mix of individuals in different sizes could increase cannibalism rate significantly. sufficient aeration could decrease cannibalism rate. the results indicated that insufficient food was a main reason to cause cannibalism in penaeus monodon postlarvae. high stocking density and differences of individual size could induce and stimulate the cannibalism．
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کلیدواژه
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penaeus monodon ,cannibalism ,individual size ,post- larvae density ,food ,aeration
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آدرس
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chinese academy of fishery sciences, south china sea fisheries research institute, china. shanghai ocean university, college of fisheries and life science, china, chinese academy of fishery sciences, south china sea fisheries research institute, china, ministry of agriculture, chinese academy of fishery sciences, south china sea fisheries research institute, key lab. of south china sea fishery resources utilization, china. shanghai ocean university, college of fisheries and life science, china, ministry of agriculture, chinese academy of fishery sciences, south china sea fisheries research institute, key lab. of south china sea fishery resources utilization, china, ministry of agriculture, chinese academy of fishery sciences, south china sea fisheries research institute, key lab. of south china sea fishery resources utilization, china, ministry of agriculture, chinese academy of fishery sciences, south china sea fisheries research institute, key lab. of south china sea fishery resources utilization, china, ministry of agriculture, chinese academy of fishery sciences, south china sea fisheries research institute, key lab. of south china sea fishery resources utilization, china
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پست الکترونیکی
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jiangsg@21cn.com
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Authors
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