Consulta: subjectFacets:"Gadus morhua"
Registros recuperados: 33
Data/hora: 10/06/2024 17:56:48

Campagnes expérimentales de chalutage en Manche orientale. Les campagnes C.G.F.S. 1997 &amp; 1998
Provedor de dados: 5
Autores: Carpentier, Andre; Coppin, Franck.
lfremer carries out a yearly bottom trawl survey named Channel Ground Fish Survey (CGFS) in order to collect essential biological data on major exploited fish species in the Eastern Channel. These data are also provided to feed the indispensable historie series to the yearly assessment of resources. This report presents results of the CGFS surveys for 1997 and 1998, under two aspects: a multispecific approach of the biological assemblages and integrating an interannual analysis, then a monospecific analysis of 7 species of commercial interest, as whiting, pout, cod, red gurnard, plaice, black bream, red mullet. OCR NOT CONTROLLED
Tipo: Text
Palavras-chave: Aspitrigla cuculus; Grondin rouge; Gadus morhua; Morue; Trisopterus luscus; Tacaud; Merlangius merlangus; Merlan; Multi espèces; Cartographie; Répartition; Abondance; Distribution; Manche orientale; Chalutage; Campagne; Plaice; Aspilngla cuculus; Red gurnard; Gadus morhua; Cod; Trisopterus luscus; Pout; Merlangius merlangus; Whiting; Multispecies; Cartography; Abundance; Distribution; Eastern Channel; Trawling; Survey.
Ano: 2000
URL: https://archimer.ifremer.fr/doc/2000/rapport-3606.pdf

Mixed fisheries management: protecting the weakest link
Provedor de dados: 5
Autores: Batsleer, Jurgen; Poos, J. J.; Marchal, Paul; Vermard, Youen; Rijnsdorp, A. D.
North Sea cod Gadus morhua stock is outside safe biological limits, and total allowable catch (TAC) management has proved ineffective to rebuild the stock. The European Commission is considering the imposition of a discard ban to preserve vulnerable and economically important fish stocks. We explored the potential effects of a discard ban in mixed fisheries management using the French mixed fisheries in the Eastern English Channel as a model system. We examined in particular the performance of 2 different management scenarios: (1) individual quota management with a tolerance for discarding and (2) individual quota management in combination with a discard ban, using a dynamic state variable model. The model evaluates a time series of decisions taken by...
Tipo: Text
Palavras-chave: Discard ban; TAC; Dynamic State Variable Modelling; Eastern English Channel; Cod; Gadus morhua; Mixed fisheries; Fleet dynamics.
Ano: 2013
URL: http://archimer.ifremer.fr/doc/00137/24781/22834.pdf

Changes in Atlantic cod (Gadus morhua L.) sperm quality during the spawning season
Provedor de dados: 5
Autores: Rouxel, Catherine; Suquet, Marc; Cosson, J; Severe, Armelle; Quemener, Loic; Fauvel, Christian.
The biology of cod reproduction is well described in the scientific literature. However, sperm biology and spermatozoa management are poorly studied in this species. Because of its recent farming expansion, a better knowledge of cod gametes is becoming especially useful. This work aimed at establishing tools to study sperm biology in cod, and also investigated the existence of changes in cod sperm quality during the spawning period. We showed that sperm concentration could be assessed using spectrophotometry at 260 nm. Sperm motility significantly decreased after a 168-h storage at 4 degrees C. A 1:9 dilution of sperm in a non-activating medium (1/3 seawater and 2/3 freshwater, osmotic pressure: 360 mOsm kg(-1)) improved sperm storage. Sperm concentration,...
Tipo: Text
Palavras-chave: Spermatozoa; Quality; Ageing; Sperm; Cod; Gadus morhua.
Ano: 2008
URL: http://archimer.ifremer.fr/doc/2008/publication-3829.pdf

Comparison of dietary phospholipids and neutral lipids on skeletal development and fatty acid composition in Atlantic cod (Gadus morhua)
Provedor de dados: 5
Autores: Kjorsvik, Elin; Olsen, Cecilia; Wold, Per-arvid; Hoehne-reitan, Katja; Cahu, Chantal; Rainuzzo, Jose; Olsen, Atle Ivar; Oie, Gunvor; Olsen, Yngvar.
Dietary essential fatty acids may affect larval skeletal formation. The aim of this study was to compare effects on growth and osteological development of dietary docosahexaenoic acid (DHA) and eicosapentaenoic acid (EPA) being incorporated in the phospholipid (diets PL1 and PL3) or in the neutral lipid (diet NL1) fraction of the larval diet for Atlantic cod (Gadus morhua). The diets were labelled according to the estimated percentage of total n-3 fatty acids contained in the dietary neutral lipid (NL1-1.3% of dietary dry matter) or in the phospholipid fraction (PL1-1.1% and PL3-2.3%). Larvae were weaned to the isoenergetic and isolipiclic microdiets from 17 days post hatching (dph). They were co-fed enriched rotifers until 24 dph and received thereafter...
Tipo: Text
Palavras-chave: DHA; EPA; Fatty acids; Phospholipids; Dietary requirements; Skeletal deformities; Osteological development; Fish larvae; Cod; Gadus morhua.
Ano: 2009
URL: http://archimer.ifremer.fr/doc/2009/publication-7417.pdf

Les chalutages experimentaux: Utilisation de la temperature et de la profondeur comme variables auxiliaires.
Provedor de dados: 5
Autores: Chevalier, R.
Very often stratification of bottom-trawl surveys is done by using a stratified random sampling scheme. If a survey is directed towards a group of species, the sampling scheme has to be a compromise between these different interests. So the sampling scheme is not totally efficient for each of the species. The use of auxiliary variables, as depth or temperature, looks as if such supplementary informations could neither improve the efficiency of the estimators nor the subsequent analysis (analysis of covariance).
Tipo: Text
Palavras-chave: Hippoglossoides platessoides; Gadus morhua; Gadidae; Pisces; Variance analysis; Bottom trawls; Experimental fishing.
Ano: 1984
URL: http://archimer.ifremer.fr/doc/1984/publication-1803.pdf

Campagnes expérimentales de chalutage en mer du Nord et Manche orientale. Volume II. Les campagnes C.G.F.S. 1997 &amp; 1998
Provedor de dados: 5
Autores: Carpentier, André; Coppin, Franck.
Ifremer carries out a yearly bottom trawl survey named Channel Ground Fish Survey (CGFS) in order to collect essential biological data on major exploited fish species in the Eastern Channel. These data are also provided to feed the indispensable historic series to the yearly assessment of resources. This report presents results of the CGFS surveys for 1997 and 1998, under two aspects : a multispecific approach of the biological assemblages and integrating an interannual analysis, then a monospecific analysis of 7 species of commercial interest, as whiting, pout, cod, red gurnard, plaice, black bream, red mullet.
Tipo: Text
Palavras-chave: Campagne; Chalutage; Manche orientale; Distribution; Abondance; Répartition; Cartographie; Multiespèces; Merlan; Merlangius merlangus; Tacaud; Trisopterus luscus; Morue; Gadus morhua; Grondin rouge; Aspitrigla cuculus; Plie; Pleuronectes platessa; Griset; Spondyliosoma cantharus; Survey; Trawling; Eastern Channel; Distribution; Abundance; Cartography; Multi-species; Whiting; Merlangius merlangus; Pout; Trisopterus luscus; Cod; Gadus morhua; Red gurnard; Aspitrigla cuculus; Plaice; Pleuronectesplatessa; Black bream; Spondyliosoma cantharus; Red mullet.
Ano: 1999
URL: http://archimer.ifremer.fr/doc/00306/41762/40975.pdf

Gadus morhua
Provedor de dados: 23
Autores: MacLean, M.
Foraging
Tipo: Image
Palavras-chave: Gadidae (Cods &amp; Haddocks); Gadus morhua.
Ano: 2010
URL: http://archive.serpentproject.com/1955/

Cod
Provedor de dados: 23
Hiding
Tipo: Image
Palavras-chave: Gadidae (Cods &amp; Haddocks); Gadus morhua.
Ano: 2007
URL: http://archive.serpentproject.com/119/

Cod
Provedor de dados: 23
Swimming, interested in ROV
Tipo: Image
Palavras-chave: Gadidae (Cods &amp; Haddocks); Gadus morhua.
Ano: 2007
URL: http://archive.serpentproject.com/105/

Cod
Provedor de dados: 23
Swimming
Tipo: Video
Palavras-chave: Gadidae (Cods &amp; Haddocks); Gadus morhua.
Ano: 2006
URL: http://archive.serpentproject.com/1139/

Cod
Provedor de dados: 23
Swimming mutant
Tipo: Image
Palavras-chave: Gadidae (Cods &amp; Haddocks); Gadus morhua.
Ano: 2007
URL: http://archive.serpentproject.com/112/

Gadus morhua
Provedor de dados: 23
Autores: MacLean, M.
Cod fish Gadus morhua, with krill sp. present and a small red squat lobster sp.? There is also a small cushion star in the upper left hand corner of the image, unable to identify further from this image. This image was taken 9 months after drilling at Lancaster had stopped
Tipo: Image
Palavras-chave: Gadidae (Cods &amp; Haddocks); Gadus morhua.
Ano: 2010
URL: http://archive.serpentproject.com/1951/

Cod
Provedor de dados: 23
Swimming away, Swimming near umbilical
Tipo: Image
Palavras-chave: Gadidae (Cods &amp; Haddocks); Gadus morhua.
Ano: 2007
URL: http://archive.serpentproject.com/90/

Cod
Provedor de dados: 23
Autores: Gates, A.
Feeding
Tipo: Image
Palavras-chave: Family Galatheidae (Galatids (squat lobsters)); Gadidae (Cods &amp; Haddocks); Family Euphausiidae (Krill); Gadus morhua; Munida sp.
Ano: 2010
URL: http://archive.serpentproject.com/1783/

Cod
Provedor de dados: 23
Autores: Gates, A.
Swimming in water column close proximity to the seabed
Tipo: Image
Palavras-chave: Gadidae (Cods &amp; Haddocks); Gadus morhua.
Ano: 2010
URL: http://archive.serpentproject.com/1900/

Gadus morhua &amp; Molva molva
Provedor de dados: 23
Autores: Gates, A.
Cod (Gadus morhua) and Ling (Molva molva) close to the BOP at Whirlwind.
Tipo: Image
Palavras-chave: Lotidae (Hakes and burbots); Gadidae (Cods &amp; Haddocks); Gadus morhua; Molva molva.
Ano: 2011
URL: http://archive.serpentproject.com/2153/

General Seabed view
Provedor de dados: 23
Autores: MacLean, M.
General seabed view with a cod fish Gadus morhua, Bryozoan Porella sp. and Krill present probably Meganyctiphanes norvegica found at Lancaster 9 months after drilling.
Tipo: Image
Palavras-chave: Gadidae (Cods &amp; Haddocks); Phylum Ectoprocta (Bryozoa); Family Euphausiidae (Krill); Porella sp.; Gadus morhua; Meganyctiphanes norvegica.
Ano: 2010
URL: http://archive.serpentproject.com/1968/

Cod
Provedor de dados: 23
Autores: Gates, AR.
large numbers of cod, ling and coalfish were aggregated around the protective structure. Occasional cod were observed to feed on items on the structure.
Tipo: Image
Palavras-chave: Order Echinoida (Sea urchins); Gadidae (Cods &amp; Haddocks); Hormathiidae; Gadus morhua.
Ano: 2016
URL: http://archive.serpentproject.com/2646/

Cod
Provedor de dados: 23
Swimming, Swimming round ROV
Tipo: Image
Palavras-chave: Gadidae (Cods &amp; Haddocks); Gadus morhua.
Ano: 2007
URL: http://archive.serpentproject.com/130/

Cod
Provedor de dados: 23
Swimming, ROV
Tipo: Video
Palavras-chave: Gadidae (Cods &amp; Haddocks); Gadus morhua.
Ano: 2003
URL: http://archive.serpentproject.com/440/

Gadus morhua
Provedor de dados: 23
Autores: Gates, AR.
The cod was feeding on crustaceans in the water column.
Tipo: Image
Palavras-chave: Gadidae (Cods &amp; Haddocks); Class Demospongiae; Gadus morhua.
Ano: 2016
URL: http://archive.serpentproject.com/2643/

Cod
Provedor de dados: 23
Swimming, hunting
Tipo: Video
Palavras-chave: Gadidae (Cods &amp; Haddocks); Gadus morhua.
Ano: 2003
URL: http://archive.serpentproject.com/471/

Cod
Provedor de dados: 23
Feeding, in ROV lights
Tipo: Video
Palavras-chave: Gadidae (Cods &amp; Haddocks); Gadus morhua.
Ano: 2002
URL: http://archive.serpentproject.com/342/

Cod
Provedor de dados: 23
Resting, equipment
Tipo: Video
Palavras-chave: Gadidae (Cods &amp; Haddocks); Gadus morhua.
Ano: 2004
URL: http://archive.serpentproject.com/420/

Cod
Provedor de dados: 23
Swimming in ROV lights
Tipo: Video
Palavras-chave: Gadidae (Cods &amp; Haddocks); Gadus morhua.
Ano: 2002
URL: http://archive.serpentproject.com/341/

Cod
Provedor de dados: 23
Swimming in group
Tipo: Image
Palavras-chave: Gadidae (Cods &amp; Haddocks); Gadus morhua.
Ano: 2007
URL: http://archive.serpentproject.com/137/

Cod
Provedor de dados: 23
Eating a Ling, Swimming over platform
Tipo: Image
Palavras-chave: Gadidae (Cods &amp; Haddocks); Gadus morhua.
Ano: 2007
URL: http://archive.serpentproject.com/93/

Cod
Provedor de dados: 23
Swimming, cable
Tipo: Video
Palavras-chave: Gadidae (Cods &amp; Haddocks); Gadus morhua.
Ano: 2002
URL: http://archive.serpentproject.com/336/

Hormathiidae sp.
Provedor de dados: 23
Autores: MacLean, M.
Swimming
Tipo: Image
Palavras-chave: Gadidae (Cods &amp; Haddocks); Family Euphausiidae (Krill); Hormathiidae; Gadus morhua; Meganyctiphanes norvegica.
Ano: 2010
URL: http://archive.serpentproject.com/1939/

Cod
Provedor de dados: 23
Swimming, cable
Tipo: Video
Palavras-chave: Gadidae (Cods &amp; Haddocks); Gadus morhua.
Ano: 2002
URL: http://archive.serpentproject.com/331/

Cod
Provedor de dados: 23
Swimming
Tipo: Video
Palavras-chave: Gadidae (Cods &amp; Haddocks); Gadus morhua.
Ano: 2003
URL: http://archive.serpentproject.com/375/

Cod
Provedor de dados: 23
Swimming, hunting
Tipo: Video
Palavras-chave: Gadidae (Cods &amp; Haddocks); Gadus morhua.
Ano: 2003
URL: http://archive.serpentproject.com/472/

Cod
Provedor de dados: 23
Swimming near equipment, Swimming around equipment, Swimming chasing Krill
Tipo: Image
Palavras-chave: Gadidae (Cods &amp; Haddocks); Gadus morhua.
Ano: 2007
URL: http://archive.serpentproject.com/78/