composition of fish species 中文意思是什麼
composition of fish species
解釋
魚類種群構成- composition : n 1 作文(法),作詩(法),作曲(法);作品,文章;樂曲;文體,措辭。2 編制;結構,構造,組成,...
- of : OF =Old French 古法語。
- fish : n 菲什〈姓氏〉。n (pl fishes 〈集合詞〉 fish)1 魚;〈集合詞〉魚類;魚肉。 ★說魚的若干種類時用 f...
- species : n. 〈sing. , pl. 〉1. 種類;【生物學】(物)種。2. 【邏輯學】種。3. 【原子能】核素。4. 【法律】形式。5. 【宗教】聖餐物。
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Unfortunately, the nutritional composition of artemia can not meet the requirements of the youngest stages of most cultured species of larval fish and crustacea
本身的營養含量不足供應幼魚蝦的需求,因鹵蟲所含的高度不飽和脂肪酸不夠。 -
To examine the effects of different lake uses on lacustrine zoobenthic community, zoobenthos were sampled in 1998 - 1999 from four shallow lakes of middle and lower basins of changjiang river, viz. fish stocking and touring lake, east tangsun lake ; fish - stocking - lake, niushan lake ; natural - fishing - lake, longgan lake and crab - overstocking - lake, huang lake. species composition, standing crops, functional feeding groups of benthic animals in every lake were studied
1998年4月1999年7月對長江中下游四個淺水湖泊即東湯孫湖、牛山湖、龍感湖和黃湖的底棲動物分別進行了四次採集,研究各個湖泊底棲動物在種類組成、現存量、功能攝食類群、生產顯和漁產潛力上的差異;結合各個湖泊理化生物因子綜合分析了湖泊不同利用方式對底棲動物群落的影響。 -
The species composition of fish varied significantly with seasons, particularly high with monthly alternatives, and associated with changes of water temperature
漁獲種類的季節變化比較明顯,種類的月更替率比較高,與海洋表層水溫變化有關。 -
The most widespread violations include the distortion of data by fishermen on the volume and size of fish caught and the species composition of the catch
最普遍的違規情況是虛報漁獲體積數量和物種。
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