{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,9,28]],"date-time":"2025-09-28T11:17:20Z","timestamp":1759058240669,"version":"3.37.3"},"reference-count":61,"publisher":"Public Library of Science (PLoS)","issue":"1","license":[{"start":{"date-parts":[[2023,1,23]],"date-time":"2023-01-23T00:00:00Z","timestamp":1674432000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100010785","name":"Canada First Research Excellence Fund","doi-asserted-by":"publisher","award":["Ocean Frontier Institute (Module H)"],"award-info":[{"award-number":["Ocean Frontier Institute (Module H)"]}],"id":[{"id":"10.13039\/501100010785","id-type":"DOI","asserted-by":"publisher"}]},{"name":"Fisheries and Marine Institute","award":["Startup Grant"],"award-info":[{"award-number":["Startup Grant"]}]}],"content-domain":{"domain":["www.plosone.org"],"crossmark-restriction":false},"short-container-title":["PLoS ONE"],"abstract":"<jats:p>To reduce the retention of undersized fish in the redfish (<jats:italic>Sebastes<\/jats:italic> spp.) trawl fishery in the Gulf of St. Lawrence, Canada, we developed a full-scale shaking codend. The shaking codend uses a mechanical stimulating device, an elliptical-shaped piece of polyvinyl chloride canvas, attached to the posterior of a T90 codend that generates a lifting force with respect to drag, causing a \u2018shaking motion\u2019. A shaking codend could stimulate fish movement and increase contact probability, both of which could increase the escape of small redfish out of a codend, especially when combined with a codend that maintains mesh openings. The movement and fishing characteristics of a shaking codend (T90 codend with canvas) relative to a T90 codend (without canvas) were tested in a flume tank and field experiment. In the flume tank test, the shaking codend had a peak-to-peak amplitude (i.e. the distance the codend moves from the lowest to highest depth) &gt; 24 cm higher than the T90 codend for each velocity tested (1.0\u20131.8 kt), higher amplitude ratio, and a higher period (1 revolution) that gradually decreased with increasing velocity. The total acceleration (m s<jats:sup>-2<\/jats:sup>) and drag forces (kgf) estimated for the shaking codend were significantly higher than the T90 codend across all flow velocities. The results from the field experiment, considered preliminary due to a small sample size, showed that the shaking codend significantly reduced the capture of small redfish (&lt; 21 cm) and the best fit model did not need to consider contact probability which was necessary for the non-shaking T90 codend. Overall, the dynamics of the movement of the codend was described and could be potentially used as an effective technique to reduce the catch of small redfish, and perhaps in other trawl fisheries to reduce the catch of small fish.<\/jats:p>","DOI":"10.1371\/journal.pone.0280751","type":"journal-article","created":{"date-parts":[[2023,1,23]],"date-time":"2023-01-23T18:24:25Z","timestamp":1674498265000},"page":"e0280751","update-policy":"https:\/\/doi.org\/10.1371\/journal.pone.corrections_policy","source":"Crossref","is-referenced-by-count":5,"title":["Developing a full-scale shaking codend to reduce the capture of small fish"],"prefix":"10.1371","volume":"18","author":[{"given":"Vang Y.","family":"Nguyen","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0343-4053","authenticated-orcid":true,"given":"Shannon M.","family":"Bayse","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Zhaohai","family":"Cheng","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Paul D.","family":"Winger","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Harold","family":"DeLouche","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Gebremeskel Eshetu","family":"Kebede","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"George","family":"Legge","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"340","published-online":{"date-parts":[[2023,1,23]]},"reference":[{"key":"pone.0280751.ref001","first-page":"470","article-title":"Discards in the World\u2019S Marine Fisheries.","author":"K. 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