Blar i Publikasjoner fra CRIStin - SINTEF Ocean på forfatter "Santos, Juan"
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The capability of square-meshes and fixed-shape meshes to control codend size selection
Bak-Jensen, Zita; Herrmann, Bent; Santos, Juan; Melli, Valentina; Stepputtis, Daniel; Feekings, Jordan P. (Journal article; Peer reviewed, 2023)Trawl codends are commonly made of diamond-mesh netting. However, diamond-mesh codends vary in mesh geometry along its length and during fishing due to catch build up. This introduces variability in the size selection ... -
Catch and release patterns for target and bycatch species in the Northeast Atlantic deep-water shrimp fishery: Effect of using a sieve panel and a Nordmøre grid
Larsen, Roger B.; Herrmann, Bent; Sistiaga, Manu Berrondo; Brinkhof, Jesse; Santos, Juan (Journal article; Peer reviewed, 2018-12-21)The Nordmøre grid and the sieve panel are two of the main devices used to reduce fish bycatch in trawl fisheries targeting shrimp species. However, even when using such devices, some small-sized fish enter the codend of ... -
Catch pattern and size selectivity for a gear designed to prevent fish injuries during the capture process in a North-East Atlantic demersal trawl fishery
Herrmann, Bent; Sistiaga, Manu; Larsen, Roger B.; Brinkhof, Jesse; Gjøsund, Svein Helge; Jacques, Nadine; Santos, Juan (Journal article; Peer reviewed, 2020-11)In the North-East Atlantic demersal trawl fishery targeting cod and haddock, the interest on fishing gear designs that preserve fish quality and welfare has grown. However, the gear configurations tested so far imply ... -
Is there a limit to the potential effects of shortening lastridge ropes on the size selectivity of diamond mesh codends?
Sistiaga, Manu; Herrmann, Bent; Brinkhof, Jesse; Larsen, Roger B.; Santos, Juan; Stepputtis, Daniel; Brinkhof, Ilmar; Jacques, Nadine; Cerbule, Kristine; Petetta, Andrea; Cuende, Elsa; Kvalvik, Liz Beate Kolstad (Journal article; Peer reviewed, 2023)Shortening codend lastridge ropes can be an effective fishing gear modification to improve the size selection properties in diamond mesh codends. Lastridge ropes attached to codend selvedges withstand the longitudinal ... -
Predictive framework for codend size selection of brown shrimp (Crangon crangon) in the North Sea beam-trawl fishery
Santos, Juan; Herrmann, Bent; Stepputtis, Daniel; Gunther, Claudia; Limmer, Bente; Mieske, Bernd; Schultz, Sebastian; Neudecker, Thomas; Temming, Axel; Hufnagl, Marc; Bethke, Eckhard; Kraus, Gerd (Journal article; Peer reviewed, 2018-07-16)The brown shrimp (Crangon crangon) fishery is of great socio-economic importance to coastal communities on the North Sea. The fishery is exploited by beam trawlers often using codends with very small mesh sizes, leading ... -
Quantification of gear inflicted damages on trawl-caught haddock in the Northeast Atlantic fishery
Sistiaga, Manu; Herrmann, Bent; Brinkhof, Jesse; Larsen, Roger B.; Jacques, Nadine; Santos, Juan; Gjøsund, Svein Helge (Journal article; Peer reviewed, 2020-08)External damages are indicators of the overall quality of fish and fish welfare. Haddock is an important commercial species widespread in the North Atlantic, but few studies related to quality have been carried out on this ... -
Quantifying the performance of selective devices by combining analysis of catch data and fish behaviour observations: methodology and case study on a flatfish excluder
Santos, Juan; Herrmann, Bent; Stepputtis, Daniel; Kraak, Sarah B. M.; Gökce, Gökhan; Mieske, Bernd (Journal article; Peer reviewed, 2020-11-06)This article describes a method for the quantitative analysis of fish behaviour relative to selection devices in trawl gears. Based on video observations, the method estimates probabilities for a given event to happen and ... -
Reducing cod bycatch in flatfish fisheries
Santos, Juan; Stepputtis, Daniel; Oesterwind, Daniel; Herrmann, Bent; Lichtenstein, Uwe; Hammerl, Constanze; Krumme, Uwe (Peer reviewed; Journal article, 2022)Management measures to facilitate the recovery of fish stocks can lead to shifts in traditional fishing patterns and target species. In the Baltic Sea, drastic reductions in catch quota for cod (Gadus morhua) force mixed ...