Review of Recreational Fisheries Survey Methods pdf epub mobi txt 電子書 下載 2024


Review of Recreational Fisheries Survey Methods

簡體網頁||繁體網頁
Not Available (NA)
Natl Academy Pr
2006-7
202
$ 50.85
Pap
9780309101936

圖書標籤:  


喜歡 Review of Recreational Fisheries Survey Methods 的讀者還喜歡




點擊這裡下載
    


想要找書就要到 小哈圖書下載中心
立刻按 ctrl+D收藏本頁
你會得到大驚喜!!

发表于2024-09-24

Review of Recreational Fisheries Survey Methods epub 下載 mobi 下載 pdf 下載 txt 電子書 下載 2024

Review of Recreational Fisheries Survey Methods epub 下載 mobi 下載 pdf 下載 txt 電子書 下載 2024

Review of Recreational Fisheries Survey Methods pdf epub mobi txt 電子書 下載 2024



圖書描述

Recreational fishing in the United States is an important social and economic component of many marine fisheries, with an estimated 14 million anglers making almost 82 million fishing trips in 2004. Although each individual angler typically harvests a small number of fish, collectively these sport fisheries can take a significant fraction of the yearly catch - in some cases more than commercial fisheries. For example, in 1999, recreational fishing accounted for 94 per cent of the total catch of spotted sea trout, 76 per cent of striped bass and sheephead, and 60 percent of king mackerel. It is important that systems used to monitor fishing catch are adequate for timely management of recreational fisheries. However, the large number of anglers and access points makes monitoring recreational fishing much more difficult than monitoring commercial fishing. This report reviews the types of survey methods used to estimate catch in recreational fisheries, including state/federal cooperative programs. The report finds that both telephone survey and onsite access components of the current monitoring systems have serious flaws in design or implementation. There are also several areas of miscommunication and mismatched criteria among designers of surveys, data collectors, and recreational fisheries. The report recommends that a comprehensive, universal sampling frame with national coverage should be established, and that improvements should be made in statistical analysis of the data collected and in the ways the data are communicated. A permanent and independent research group should be established and funded to evaluate the statistical design and adequacy of recreational fishery surveys and to guide necessary modifications or new initiatives.

Review of Recreational Fisheries Survey Methods 下載 mobi epub pdf txt 電子書

著者簡介


圖書目錄


Review of Recreational Fisheries Survey Methods pdf epub mobi txt 電子書 下載
想要找書就要到 小哈圖書下載中心
立刻按 ctrl+D收藏本頁
你會得到大驚喜!!

用戶評價

評分

評分

評分

評分

評分

讀後感

評分

評分

評分

評分

評分

類似圖書 點擊查看全場最低價

Review of Recreational Fisheries Survey Methods pdf epub mobi txt 電子書 下載 2024


分享鏈接





相關圖書




本站所有內容均為互聯網搜索引擎提供的公開搜索信息,本站不存儲任何數據與內容,任何內容與數據均與本站無關,如有需要請聯繫相關搜索引擎包括但不限於百度google,bing,sogou

友情鏈接

© 2024 qciss.net All Rights Reserved. 小哈圖書下載中心 版权所有