怕跛行他有限 发表于 2025-3-21 16:46:00

书目名称On the Dynamics of Exploited Fish Populations影响因子(影响力)<br>        http://figure.impactfactor.cn/if/?ISSN=BK0701146<br><br>        <br><br>书目名称On the Dynamics of Exploited Fish Populations影响因子(影响力)学科排名<br>        http://figure.impactfactor.cn/ifr/?ISSN=BK0701146<br><br>        <br><br>书目名称On the Dynamics of Exploited Fish Populations网络公开度<br>        http://figure.impactfactor.cn/at/?ISSN=BK0701146<br><br>        <br><br>书目名称On the Dynamics of Exploited Fish Populations网络公开度学科排名<br>        http://figure.impactfactor.cn/atr/?ISSN=BK0701146<br><br>        <br><br>书目名称On the Dynamics of Exploited Fish Populations被引频次<br>        http://figure.impactfactor.cn/tc/?ISSN=BK0701146<br><br>        <br><br>书目名称On the Dynamics of Exploited Fish Populations被引频次学科排名<br>        http://figure.impactfactor.cn/tcr/?ISSN=BK0701146<br><br>        <br><br>书目名称On the Dynamics of Exploited Fish Populations年度引用<br>        http://figure.impactfactor.cn/ii/?ISSN=BK0701146<br><br>        <br><br>书目名称On the Dynamics of Exploited Fish Populations年度引用学科排名<br>        http://figure.impactfactor.cn/iir/?ISSN=BK0701146<br><br>        <br><br>书目名称On the Dynamics of Exploited Fish Populations读者反馈<br>        http://figure.impactfactor.cn/5y/?ISSN=BK0701146<br><br>        <br><br>书目名称On the Dynamics of Exploited Fish Populations读者反馈学科排名<br>        http://figure.impactfactor.cn/5yr/?ISSN=BK0701146<br><br>        <br><br>

包庇 发表于 2025-3-21 20:33:23

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ordain 发表于 2025-3-22 03:44:45

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idiopathic 发表于 2025-3-22 08:20:39

Estimation of the Total Mortality Coefficient (, + ,), and the Maximum Age, ,,e of adjacent age-groups in a sample, depending on the type of data available. Certain conditions must be satisfied, apart from adequate sampling, for this direct method to give true estimates, and it may be worth while to review briefly the theory underlying the determination of total mortality rates.

Fortuitous 发表于 2025-3-22 10:47:03

Principles and Methods of Fishery Regulationat increasing the size of mesh could also improve the state of these fisheries; in fact, we concluded in §17.6 that to obtain the best yields from the plaice, changes in both fishing intensity and mesh size would be necessary, and none of our findings in §18 has shown this to be false.

cyanosis 发表于 2025-3-22 13:20:32

2542-890X abitats of lakes, ponds, rivers, rock pools and the open sea, fish have solved the problems of life in deserts, in the deep sea, in the cold antarctic, and in warm waters of high alkalinity or of low oxygen. Along with these adaptations, we find the most impressive specializations of morphology, phy

characteristic 发表于 2025-3-22 19:44:46

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fender 发表于 2025-3-23 01:00:39

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钝剑 发表于 2025-3-23 04:46:26

Adaptation of the Simple Model to Give Other Characteristics of the Catch and Population and mean age of fish in the catch, which are directly estimated from samples. To establish the equations giving the above characteristics we use the same definitions and assumptions as in the previous section, and it will be seen that the same general methods are applicable.

过多 发表于 2025-3-23 07:15:02

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查看完整版本: Titlebook: On the Dynamics of Exploited Fish Populations; Raymond J. H. Beverton,Sidney J. Holt Book 1993 Springer Science+Business Media Dordrecht 1