{"id":9538,"date":"2016-09-27T11:26:48","date_gmt":"2016-09-27T15:26:48","guid":{"rendered":"http:\/\/fish-news.com\/cfn\/?p=9538"},"modified":"2016-09-27T11:49:24","modified_gmt":"2016-09-27T15:49:24","slug":"new-study-chain-sweep-catches-more-flounder","status":"publish","type":"post","link":"https:\/\/fish-news.com\/cfn\/new-study-chain-sweep-catches-more-flounder\/","title":{"rendered":"New study: Chain sweep catches more flounder"},"content":{"rendered":"

WOODS HOLE, MA \u2013 This past summer, NOAA Fisheries Northeast Fisheries Science Center undertook a second experimental trawl study to test the efficiency of the research vessel Henry Bigelow\u2019s flatfish catch, this time focused on witch flounder.<\/p>\n

\"In

In the catchability study, a comparative trawl method was used: one reel carried a trawl rigged with a rockhopper sweep; the other a chain sweep.
(Calvin Alexander\/NOAAFisheries Cooperative Research Branch photo)<\/p><\/div>\n

The two-week study compared a trawl net rigged with a modified chain sweep gear with that of a trawl net and rockhopper sweep, set up to imitate the Bigelow, to determine relative efficiencies in catch.<\/p>\n

The chain sweep system had a four-fold increase in catchability for witch flounder.<\/p>\n

The study was performed at the request of the newly-formed Northeast Trawl Advisory Panel (NTAP) established by the Mid-Atlantic and New England fishery management councils and comprised of fishermen, managers, and researchers.<\/p>\n

The Science Center provided $600,000 in funding for the NTAP and catchability studies.<\/p>\n

The fishing industry has often questioned the estimates of relative abundance for species of flatfish, in part because of how the research vessel catches fish.<\/p>\n

In order to cover vast areas to sample multiple species, the Bigelow uses a trawl net with a rockhopper sweep with 16\u201d discs to traverse a variety of bottom types.<\/p>\n

Flatfish obviously, lie flat on the seafloor, often burying themselves in the soft sand and mud…<\/p>\n

 <\/p>\n

\"cfn-10_16-cover\"<\/p>\n

To get the rest of this story and much more you’ll need the October 2016 issue of\u00a0Commercial Fisheries News –\u00a0<\/em><\/strong>please choose from the\u00a0following options<\/i>:<\/strong><\/p>\n

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<\/div>","protected":false},"excerpt":{"rendered":"

WOODS HOLE, MA \u2013 This past summer, NOAA Fisheries Northeast Fisheries Science Center undertook a second experimental trawl study to test the efficiency of the research vessel Henry Bigelow\u2019s flatfish catch, this time focused on witch flounder. The two-week study compared a trawl net rigged with a modified chain sweep gear with that of a … <\/p>\n

Continue reading<\/a><\/p>\n","protected":false},"author":3,"featured_media":9541,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7,273,104,122,200],"tags":[],"class_list":["post-9538","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-engines-and-gear","category-october-16","category-regulations","category-research","category-winter-flounder","nodate","item-wrap"],"_links":{"self":[{"href":"https:\/\/fish-news.com\/cfn\/wp-json\/wp\/v2\/posts\/9538","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fish-news.com\/cfn\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fish-news.com\/cfn\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fish-news.com\/cfn\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/fish-news.com\/cfn\/wp-json\/wp\/v2\/comments?post=9538"}],"version-history":[{"count":4,"href":"https:\/\/fish-news.com\/cfn\/wp-json\/wp\/v2\/posts\/9538\/revisions"}],"predecessor-version":[{"id":9560,"href":"https:\/\/fish-news.com\/cfn\/wp-json\/wp\/v2\/posts\/9538\/revisions\/9560"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/fish-news.com\/cfn\/wp-json\/wp\/v2\/media\/9541"}],"wp:attachment":[{"href":"https:\/\/fish-news.com\/cfn\/wp-json\/wp\/v2\/media?parent=9538"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fish-news.com\/cfn\/wp-json\/wp\/v2\/categories?post=9538"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fish-news.com\/cfn\/wp-json\/wp\/v2\/tags?post=9538"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}