Results 81 to 90 of about 19,761 (243)

The impacts of environmental forcing on the dynamics of demersal fishery resources of Ghana [PDF]

The dynamics of demersal fish species assemblages and stocks on the continental shelf of Ghana, West Africa were investigated using data from trawl surveys conducted between 1963 and 1990, and in relation to marine environmental and nearshore forcing ...
Koranteng, Kwame Abu
core  

Habitat use by demersal nekton on the continental shelf in the Benguela ecosystem, southern Africa [PDF]

, 2002
Videotapes collected by the research submersible Jago in the Benguela ecosystem during spring 1997 were analyzed to determine demersal nekton assemblage composition, fish behavior, and microscale habitat association, and habitat selection.
Goosen, Andre J. J., Wickens, Patti A., Gibbons, Mark J.   +2 more
core  

Key drivers of at‐vessel mortality in demersal sharks

Conservation Biology
Abstract Chondrichthyans are highly vulnerable to fisheries overexploitation, and postcapture mortality poses a significant threat to most species. Global bycatch mitigation guidelines recommend adopting hierarchical decision‐making approaches tailored to species‐specific vulnerabilities and socioeconomic and ...
David Ruiz‐García, Claudio Barría, Juan A. Raga, David March   +3 more
openaire   +3 more sources

Divergent exploratory‐avoidant behavioural strategies may drive niche differentiation in juvenile Antarctic fishes

Journal of Fish Biology, EarlyView.
Abstract We used an ecological niche theory framework integrating physiological and behavioural ecology to understand interspecific differentiation of juveniles of four Antarctic fishes: Trematomus bernacchii, Trematomus pennellii, Trematomus nicolai and Pagothenia borchgrevinki.
Amanda J. Frazier, Andrew W. Naslund, Milica Mandic, Kenneth W. Zillig, Bryant C. Siu, Anne E. Todgham   +5 more
wiley   +1 more source

Preliminary analysis of demersal fish assemblages in coastal waters of the Gulf of Thailand [PDF]

The 1995 trawl data of the research vessels Pramong 2 and 9 in the Gulf of Thailand were analyzed using TWINSPAN and DCA. Four main station clusters were identified related to geographic location and depth.
Eiamsa-Ard, M., Mala Supongpan, Somchai Vibunpant, Narongsak Khongchai   +3 more
core  

Reproduction, distribution and abundance of Bothus constellatus (Pisces: Bothidae), in the Gulf of Tehuantepec, Mexico

Revista de Biología Tropical, 2000
A total of 3 593 individuals of Bothus constellatus was captured during five oceanographic cruises carried out in the Gulf of Tehuantepec, Mexico.
M. Tapia-García, M. C. García-Abad, G. Cerdenares Ladrón de Guevara   +2 more
doaj  

Modified fin morphology in mackerel icefish (Champsocephalus gunnari) may indicate nesting behaviour

Journal of Fish Biology, EarlyView.
Abstract Monitoring reproductive traits in Southern Ocean species is challenging. Males in some channichthyids thicken the epithelium along their anal fins to aid nest construction. This study presents initial evidence that the only commercially harvested channichthyid, mackerel icefish (Champsocephalus gunnari), exhibits modifications to their anal ...
Huw W. James, Fabrice Stephenson, Martin A. Collins, Simeon L. Hill, William D. K. Reid   +4 more
wiley   +1 more source

Demersal fish assemblages of the Southwest Coast of India [PDF]

Demersal surveys from the southwest coast of India were analyzed to determine the general pattern of distribution of demersal species assemblages in the area.
Kurup, K.N., Pillai, V.N., Vivekandan, E., Srinath, M.   +3 more
core  

Careproctus io (Teleostei: Liparidae), a New Snailfish from the Western North Pacific, with Comments on Generic Limits

Species Diversity
The new snailfish Careproctus io is described on the basis of three specimens collected from the western North Pacific, off northeastern Honshu Island, Japan.
Yoshiaki Kai, Eisuke Morikawa, Ryo Misawa   +2 more
doaj   +1 more source

Distribución, abundancia y reproducción de Opisthonema oglinum (Pisces: Clupeidae) en la plataforma continental del sur del Golfo de México

Revista de Biología Tropical, 1998
Se analizan diversos aspectos de la biología y ecología de Opisthonema oglinum con base en 813 individuos obtenidos en seis cruceros oceanográficos. Esta especie dependiente estuarina, se distribuye en la Sonda de Campeche entre los 12 y 36 m.
M. C. García-Abad, A. Yáñez-Arancibia, P. Sánchez-Gil, M. Tapia-García   +3 more
doaj