| 挪威春季产卵的大西洋鲱仔稚鱼年孵化量的估算方法 |
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| 引用本文： | 梁兴明,Herman Bjφrke.挪威春季产卵的大西洋鲱仔稚鱼年孵化量的估算方法[J].中国水产科学,1999,6(2):46-51. |
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| 作者姓名： | 梁兴明 Herman Bjφrke |
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| 作者单位： | 1. 中国水产科学研究院黄海水产研究所,青岛,266071
2. 挪威卑尔根海洋研究所,P.O.Box,1870,Nordnes,N-5024,Bergen,Norway |
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| 摘 要： | １９８６～１９９０年间，挪威卑尔根海洋研究所每年都对挪威西海岸春季产卵的大西洋鲱仔稚鱼的分布区进行一次综合性调查，每年在大西洋鲱的孵化期，都在Ｓｕｎｎｍｒｅ近岸和Ｂｕａｇｒｕｎｎｅｎ的两个小区重复取样（通常每周２次），并用覆盖整个孵化区的综合调查所得的资料计算出仔稚鱼日孵化量，用两个小区所得的资料作孵化曲线，从而得出在孵化期内仔稚鱼孵化量占年总孵化量的百分比。１９８６～１９９０年间仔稚鱼年孵化量分别是１．７×１０１２、３．９×１０１２、３５．４×１０１２、７２．８×１０１２和９９．１×１０１２尾。
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| 关 键 词： | 大西洋鲱，仔稚鱼，春季产卵，孵化量，挪威 |
| 修稿时间： | 2010/4/8 0:00:00 |
A method to estimate annual larval production of Norwegian spring-spawning Atlantic herring (Clupea harengus) |
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| Liang Xingming,Herman Bφjrke.A method to estimate annual larval production of Norwegian spring-spawning Atlantic herring (Clupea harengus)[J].Journal of Fishery Sciences of China,1999,6(2):46-51. |
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| Authors: | Liang Xingming Herman Bφjrke |
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| Abstract: | A comprehensive survey in the larvadistributed
area of Norwegian spring-spawning herring along west Norwegian coast was carried out
annually by the Institute of Marine Research, Bergen, during 19861990.Moreover, 2 small
subareas were sampled repeatedly (usually twice a week) off Sunnmre and at Buagrunnen
during the hatching period each year.The daily larval production was worked out with the data
obtained from the comprehensive survey covering the entire larva-distributed area. Data
obtained from the subareas had been used to construct the hatching curve so as to get the daily
larval production percentage in the annual larval production which could be estimated after
then.The annual larval production from 1986 to Author 1990 were
1.71012,3.91012,35.41012,72.81012 and 99.11012 individuals . |
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| Keywords: | Clupea harengus larvae spring-spawning larval production Norway |
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