Results 1 to 10 of about 41 (35)
Se analizan registros operacionales de cruceros de evaluación directa de camarón nailon realizados entre 1998 y 2006 frente a la costa central de Chile.
Cristian Canales, Patricio Arana
doaj +4 more sources
In order to improve the inter-specific selectivity of a new bottom trawl design for demersal crustaceans, an experimental attempt was carried out to compare the shrinkage effect in length of net structure accessories, particularly shorter bridles and ...
Dante Queirolo +6 more
doaj +1 more source
By-catch associated with fisheries of Heterocarpus vicarius (Costa Rica) and Heterocarpus reedi (Chile) (Decapoda: Pandalidae): a six-year study (2004-2009) [PDF]
Growing concern about the quantity and diversity of by-catch species caught in the bottom trawling nets of crustacean fisheries led us to compare the quantity of by-catch recorded in Chilean and Costa Rican deep-water shrimp fisheries by year, latitude, and bathymetry.
Arana, Patricio M. +4 more
openaire +3 more sources
The size selectivity of alternative codends for nylon shrimp and yellow squat lobster was studied off the Chilean coast using the covered codend technique. Various mesh sizes (47 and 63 mm mesh opening) and shapes (diamond and square) in the codends were used.
Queirolo, D. +5 more
openaire +5 more sources
Improved interspecific selectivity of nylon shrimp (Heterocarpus reedi) trawling in Chile
In order to improve the inter-specific selectivity of a new bottom trawl design for demersal crustaceans, an experimental attempt was carried out to compare the shrinkage effect in length of net structure accessories, particularly shorter bridles and sweeps, based on previous studies on escape behavior of gadiform fishes.
Queirolo, Dante +6 more
openaire +2 more sources
11 pages, 6 figures, 2 tables [EN] The population structure of fishery resources and the impact of environmental factors over its productivity are important processes to be considered in fisheriesmanagement. Environmental factors could determine both, the success of larval drift as the population spatial structure and its changes of biomass.
Canales, Cristian M +2 more
openaire +3 more sources
Un modelo simple para describir la dinámica de la biomasa del camarón nailon Heterocarpus reedi en Coquimbo, Chile [PDF]
A daily record of space/time dynamics was carried out on CPUE (ton·trawl -1 ) for the nylon shrimp trawl fishery based at Coquimbo, Chile, between September 1997 and August 2000. A modified biomass depletion model was constructed to analyze the temporal variations in CPUE based on the concepts of abundance (total population biomass) and availability ...
openaire +2 more sources
An economic analysis of the Heterocarpus reedi and Cervimunida johni fisheries off northern-central Chile, from 1997 to 2000 [PDF]
Se analizo el efecto economico debido a la disminucion de la captura por unidad de esfuerzo (CPUE) en la pesqueria de camaron nailon y langostino amarillo en la zona norte y central de Chile durante el periodo 1997-2000. Se utilizo un modelo de simulacion biologico-tecnologico que da cuenta de variables de desempeno fisicas y biologicas.
openaire +2 more sources
Entre octubre de 1976 y diciembre de 1979 se obtuvieron 23 especies de Crustáceos Decápodos asociados con la pesquería de Heterocarpus reedi capturados por barcos arrastreros que operan en Chile Central, a profundidades de 250 a 500 m. frente a la zona comprendida entre Los Vilos y Quintero.
Héctor Andrade V., Pedro Báez R.
openaire +1 more source
9 pages, 7 figures, 2 tables Two key elements in the adequate, sustained exploitation of any fishery should be considered; the biological attributes of the species and how these vary over time and space. Research is needed to obtain a more thorough understanding of these effects, how they vary, and how they relate to environmental factors. For 17 years,
Cristian M. Canales +2 more
openaire +2 more sources

