LOCAL-SCALE VERSUS LARGE-SCALE FACTORS AFFECTING RECRUITMENT

被引：28

作者：

COHEN, EB ^{[1
]}

MOUNTAIN, DG ^{[1
]}

OBOYLE, R ^{[1
]}

机构：

[1] FISHERIES & OCEANS CANADA,BEDFORD INST OCEANOG,BIOL SCI BRANCH,DIV MARINE FISH,DARTMOUTH B2Y 4A2,NS,CANADA

来源：

CANADIAN JOURNAL OF FISHERIES AND AQUATIC SCIENCES | 1991年 / 48卷 / 06期

关键词：

D O I：

10.1139/f91-117

中图分类号：

S9 [水产、渔业];

学科分类号：

0908 ;

摘要：

Recent analyses of Atlantic cod (Gadus morhua) and haddock (Melanogrammus aeglefinus) stocks in the northwest Atlantic have indicated that large-scale factors (several hundred to thousands of kilometres) dominate over effects operating on more local scales (10 to a few hundred kilometres) in determining recruitment patterns for these stocks. Adding additional years and additional stocks to the data set, the recruitment time series for cod and haddock have been reexamined. A first differencing technique was used to remove trends in the data. The results indicate that while large-scale effects probably do affect recruitment, the dominant factors are operating on more local scales and correlations are strongest for neighboring stocks.

引用

页码：1003 / 1006

页数：4

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