Blar i Publikasjoner fra CRIStin - SINTEF Ocean på forfatter "Herrmann, Bent"
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Could green artificial light reduce bycatch during Barents Sea Deep-water shrimp trawling?
Larsen, Roger B.; Herrmann, Bent; Sistiaga, Manu Berrondo; Brcic, Jure; Brinkhof, Jesse; Tatone, Ivan (Journal article; Peer reviewed, 2018-08)The Nordmøre grid is widely used in shrimp trawls to reduce the bycatch of fish species. However, small-sized fish species and juveniles still pass through the grid and enter the codend, along with the targeted shrimp. ... -
CREELSELECT—A method for determining the optimal creel mesh: Case study on Norway lobster (Nephrops norvegicus) fishery in the Mediterranean Sea
Brčić, Jure; Herrmann, Bent; Mašanović, Marina; Šifner, Svjetlana Krstulović; Škeljo, Frane (Journal article; Peer reviewed, 2018-08)In the laboratory, we investigated which sizes of Nephrops (Nephrops norvegicus) could pass through the meshes of different size and shape to establish a predictive model for the creels size selectivity. Predictions agreed ... -
Dredge selectivity in a Mediterranean striped venus clam (Chamelea gallina) fishery
Petetta, Andrea; Herrmann, Bent; Virgili, Massimo; Bargione, Giada; Vasapollo, Claudio; Lucchetti, Alessandro (Peer reviewed; Journal article, 2021)The striped venus clam Chamelea gallina is the target of a large fleet of hydraulic dredgers, which represent an important fishing sector in terms of income and landings in the Mediterranean Sea. Although there is information ... -
Effect of a lateral square-mesh panel on the catch pattern and catch efficiency in a Mediterranean bottom trawl fishery
Bonanomi, Sara; Brcic, Jure; Herrmann, Bent; Notti, Emilio; Colombelli, Alessandro; Moro, Fabrizio; Pulcinella, Jacopo; Sala, Antonello (Journal article; Peer reviewed, 2020)The current legal codends used in Mediterranean bottom trawl fisheries are at high risk of retaining undersized individuals of several commercial fish species. This entails that codends alone are unable to provide the ... -
Effect of a quality-improving codend on size selectivity and catch patterns of cod in bottom trawl fishery
Brinkhof, Jesse; Herrmann, Bent; Larsen, Roger B.; Veiga-Malta, Tiago (Journal article; Peer reviewed, 2019-02-26)A new codend concept developed and tested exhibited significantly improved quality of caught cod (Gadus morhua) compared to that of the conventional codend used in the Barents Sea bottom trawl fishery. However, the design ... -
Effect of Bait Type and Bait Size on Catch Efficiency in the European Hake Merluccius merluccius Longline Fishery
Sistiaga, Manu Berrondo; Herrmann, Bent; Rindahl, Lasse; Tatone, Ivan (Journal article; Peer reviewed, 2018-02-21)We investigated the effect of bait type and bait size on the catch ef fi ciency of a demersal longline fi shery targeting European Hake Merluccius merluccius in the North Sea. Automation of the labor-intensive processes ... -
Effect of codend mesh sizes on the size selectivity and exploitation pattern of cocktail shrimp (Trachypenaeus curvirostris) in shrimp trawl fishery of the South China Sea
Yang, Bingzhong; Herrmann, Bent (Peer reviewed; Journal article, 2022)This study aims at improving fishery management by testing and comparing the size selectivity and exploitation pattern of diamond-mesh codends, with mesh sizes ranging from 25 to 54 mm, for cocktail shrimp (Trachypenaeus ... -
Effect of Extension Piece Design on Catch Patterns in a Mediterranean Bottom Trawl Fishery
Petetta, Andrea; Herrmann, Bent; Virgili, Massimo; Li Veli, Daniel; Brinkhof, Jesse; Lucchetti, Alessandro (Peer reviewed; Journal article, 2022)The catch composition of bottom trawls is commonly refined and improved through changes in codend design. Measures like reducing the number of meshes in codend circumference or turning diamond netting by 90 degrees are ... -
Effect of gear design on catch damage on cod (Gadus morhua) in the Barents Sea demersal trawl fishery
Brinkhof, Jesse; Herrmann, Bent; Sistiaga, Manu; Larsen, Roger B.; Jacques, Nadine; Gjøsund, Svein Helge (Journal article; Peer reviewed, 2021-02)Damage incurred during the catch process is an indicator of the overall quality of fish and fish welfare. Because catch quality is difficult to improve once it has deteriorated, it is important to preserve quality during ... -
Effect of gear soak time on size selection in the snow crab pot fishery
Olsen, Leonore; Herrmann, Bent; Sistiaga, Manu Berrondo; Grimaldo, Eduardo (Journal article; Peer reviewed, 2019-06)In the commercial pot fishery for snow crab (Chionocetes opilio), size selection by the pots is important for reducing catch sorting and unintended mortality. In addition to mesh size and shape, selection in the pots relies ... -
Effect of gillnet twine thickness on capture pattern and efficiency in the Northeast-Arctic cod (Gadus morhua) fishery
Brinkhof, Ilmar; Herrmann, Bent; Larsen, Roger B.; Brinkhof, Jesse; Grimaldo, Eduardo; Vollstad, Jørgen (Journal article; Peer reviewed, 2023)Gillnets are among the most common fishing gears worldwide. They are often made of thin twine, which is prone to wear and tear, limiting the lifespan of the gillnet. This increases gillnet turnover, and consequently increased ... -
Effect of grid section design on trawl size selectivity
Sistiaga, Manu; Herrmann, Bent; Brinkhof, Jesse; Larsen, Roger B. (Journal article; Peer reviewed, 2023)Sorting grids are introduced in trawl fisheries to improve size selectivity and reduce the variability of results obtained with sorting devices constructed of netting e.g., codends. Grids are rigid or semi-rigid structures ... -
The effect of grid size on catch efficiency and by-catch in the demersal trawl fishery for Norway pout (Trisopterus esmarkii)
Brinkhof, Jesse; Grimaldo Vela, Eduardo Enrique; Herrmann, Bent; Pettersen, Hermann (Peer reviewed; Journal article, 2022)Norway pout (Trisopterus esmarkii) is caught with large trawls with small meshed codends, inevitably causing the fishery to have large by-catch issues. To reduce the amount of by-catch, a rigid sorting grid was made ... -
Effect of ground gear modification on bycatch of rays in mediterranean bottom trawl fishery
Fakıoğlu, Y.E.; Özbilgin, H.; Gökçe, G.; Herrmann, Bent (Peer reviewed; Journal article, 2022)Bycatch of rays and skates in towed fishing gears represents one of the major threats to these relatively slow-growing marine species. The objective of this study was to modify ground gear in a bottom trawl fishery to ... -
Effect of Hook and Bait Size on Catch Efficiency in the Persian Gulf Recreational Fisheries
Herrmann, Bent; Eighani, Morteza; Paighambari, Seyed Yousef; Feeking, Jordan (Journal article; Peer reviewed, 2018-06-15)The effect of hook and bait sizes on the catch efficiency and size composition of Spangled Emperor Lethrinus nebulosus, Orange‐spotted Grouper Epinephelus coioides, and Narrowbarred Mackerel Scomberomorus commerson was ... -
Effect of lifting the sweeps on bottom trawling catch efficiency on the Northeast arctic cod trawl fishery
Sistiaga, Manu Berrondo; Grimaldo, Eduardo; Herrmann, Bent; Larsen, Roger B.; Tatone, Ivan (SINTEF Fiskeri og havbruk;A26220, Research report, 2014-07-01)Fuel consumption and environmental concerns have led bottom trawlers fishing for cod (Gadus morhua) in the Barents Sea to use semi-pelagic doors. However, this change may affect fish herding and consequently the catch ... -
Effect of pot design on the catch efficiency of snow crabs (Chionoecetes opilio) in the Barents Sea fishery
Olsen, Leonore; Herrmann, Bent; Grimaldo, Eduardo; Sistiaga, Manu Berrondo (Journal article; Peer reviewed, 2019-07-18)The snow crab (Chioneocetes opilio) fishery in the Barents Sea is carried out by large offshore vessels, as the fishing grounds are located far from shore and the gear must be transported back and forth over long distances. ... -
Effect of the Nordmøre grid bar spacing on size selectivity, catch efficiency and bycatch of the Barents Sea Northern shrimp fishery
Larsen, Roger B.; Herrmann, Bent; Sistiaga, Manu; Brinkhof, Jesse; Cerbule, Kristine; Grimaldo Vela, Eduardo Enrique; Lomeli, Mark JM (Peer reviewed; Journal article, 2022)The introduction of the Nordmøre grid in shrimp trawls has reduced the bycatch of non-target species. In the Norwegian Northern shrimp (Pandalus borealis) fishery, the mandatory selective gear consists of a Nordmøre grid ... -
Effect of three different codend designs on the size selectivity of juvenile cod in the Barents Sea shrimp trawl fishery
Herrmann, Bent; Sistiaga, Manu Berrondo; Larsen, Roger B.; Brinkhof, Jesse (Journal article; Peer reviewed, 2019-11)Shrimp trawlers often use a Nordmøre sorting grid ahead of a small mesh codend to avoid bycatch of juvenile fish while allowing shrimps to be efficiently caught. However, small fish can pass through the grid to enter the ... -
Effect of using biodegradable PBSAT gillnets on the Catch efficiency and quality of Greenland halibut (Reinhardtius hippoglossoides)
Grimaldo, Eduardo; Herrmann, Bent; Tveit, Guro Møen; Vollstad, Jørgen; Schei, Marte (Journal article; Peer reviewed, 2018-12-27)The effect of using biodegradable polybutylene succinate co‐adipate‐co‐terephthalate (PBSAT) gill nets on the relative catch efficiency was assessed in a commercial gill‐net fishery targeting Greenland Halibut Reinhardtius ...