Results 41 to 50 of about 725 (138)

Biología y ecología del calamar Dosidicus gigas (Cephalopoda) en aguas chilenas: una revisión [PDF]

open access: yes, 2015
Indexación: Web of Science; Scielo.ABSTRACT. The jumbo squid Dosidicus gigas is the most abundant cephalopod species in the southeastern Pacific Ocean, which supports the biggest cephalopod fishery in the world.
Ibáñez, Christian M.   +4 more
core   +3 more sources

Impact of mercury released from permafrost on food safety in Switzerland

open access: yesFood Risk Assess Europe, Volume 2, Issue 4, October 2024.
ABSTRACT Climate change has caused the permafrost to thaw, releasing the previously sequestered mercury into the environment. Mercury has the ability to convert to methylmercury, a bioaccumulative neurotoxin. Exposure occurs in humans through the ingestion of contaminated food and it is associated with adverse health effects.
Louise Ray
wiley   +1 more source

Morphology and ultrastructure of pink cusk-eel (Genypterus blacodes, Schneider 1801) spermatozoa by scanning and transmission electron microscopy

open access: yesTissue and Cell, 2018
In this study, the morphology and ultrastructure of Genypterus blacodes spermatozoa were characterized through scanning and transmission electron microscopy. Findings revealed that the G. blacodes spermatozoa can be differentiated into three major parts: a spherical head without an acrosome (typical for externally fertilizing fish), a short mid-piece ...
Kelly Dumorné   +5 more
openaire   +3 more sources

The economic cost of seabird bycatch in Argentinean longline fisheries [PDF]

open access: yes, 2012
Seabird mortality in longline fisheries is believed to be an important cause of the reductions in many seabird populations worldwide, and results in reduced fishing efficiency and economic losses for fishing companies.
Frere, Esteban   +1 more
core   +1 more source

Comparative study on nutritional composition of fish available in Portugal [PDF]

open access: yes, 2019
Purpose - The Mediterranean Diet is one of the healthiest eating patterns and relies much on the regular consumption of fish, source of unsaturated fatty acids, protein, vitamins and minerals.
Botelho, Goreti   +2 more
core   +1 more source

Links between marine fauna and oceanic fronts on the Patagonian Shelf and Slope [PDF]

open access: yes, 2013
One of the main oceanographic features in the Southwest Atlantic is the transport of cold waters of Sub-Antarctic origin along the Patagonian slope to temperate latitudes (40-42ºS) by the Falkland Current.
Arkhipkin, Alexander   +2 more
core  

Revisión de la zoogeografía de los peces marinos de la Patagonia chilena (42º-57º S) [PDF]

open access: yes, 1999
From bibliographical information on bathymetric and latitudinal distribution of 110 marine fish species of western Patagonia (42º-57ºS), the ichthyogeographic zonation of the area is discussed.
Sielfeld, Walter, Vargas, Mauricio
core   +3 more sources

Composición de especies, tasas de captura y estructura de tamaño de peces capturados en la pesquería espinelera artesanal de rayas en la zona sur-austral de Chile Species composition, catch rates, and size structures of fishes caught in the small-scale longline skate fishery off southern Chile

open access: yesLatin American Journal of Aquatic Research, 2008
En los últimos diez años los desembarques de rayas en la pesquería espinelera artesanal se han incrementado aceleradamente en la zona sur-austral de Chile y actualmente se desconocen características fundamentales para la descripción de la dinámica ...
Juan Carlos Quiroz   +3 more
doaj  

Effect of type of otolith and preparation technique on age estimation of larval and juvenile spot (Leiostomus xanthurus) [PDF]

open access: yes, 2005
Otoliths of larval and juvenile fish provide a record of age, size, growth, and development (Campana and Neilson, 1985; Thorrold and Hare, 2002). However, determining the time of first increment formation in otoliths (Campana, 2001) and assessing the ...
Bath Martin, Gretchen E.   +3 more
core  

Three new species of blood flukes (Digenea: Aporocotylidae) infecting pufferfishes (Teleostei: Tetraodontidae) from off Bali, Indonesia [PDF]

open access: yes, 2016
We describe three new species of blood flukes (Aporocotylidae) and propose their classification within the genus Psettarium Goto & Ozaki, 1929. All three species were collected from the circulatory systems of pufferfishes caught off Bali, central ...
Bray, R. A.   +6 more
core   +1 more source

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