[Growth and mortality parameters of Orthopristis ruber (Perciformes: Haemulidae) from Los Frailes Archipelaeo. Venezuela].

Orthopristis ruber is a species in high demand in Eastern Venezuela, but production has been decreasing in recent years. For this reason, our objective was to estimate the growth and mortality parameters of this resource. Monthly samples were collected from June 2011 to May 2012, obtaining 2980 specimens in El Tirano and Puerto Abajo.

[Dana swimming crab growth Callinectes danae (Decapoda: Portunidae) from Margarita Island, Venezuela].

Callinectes danae is a common species captured with crab traps in nearby areas of coastal lagoons in Margarita Island. Although its considerable economic importance as a fishery resource, few studies have been done on population dynamics and its fishery potential in local coastal environments to support decision making in fishery administration. We present growth pattern details of Callinectes danae to better estimate its population size and exploitation feasibility.

[Growth and natural mortality of the fish Haemulon aurolineatum (Teleostei: Haemulidae) in the Southwest of Margarita Island, Venezuela].

We analyzed the growth and natural mortality of the cují (Haemulon aurolineatum) in the southwest of Margarita Island, from July 2005 through June 2006. A sample of 1,378 males and 1,143 females collected from Boca del Río artisanal fishing vessels was analyzed. The common relation for both sexes was expressed by the equation P=0.

[Growth and mortality of the fish Haemulon aurolineatum (Teleostei: Haemulidae) from southwest of Margarita Island, Venezuela].

We analyzed the growth and natural mortality of the fish known locally as cuji (H. aurolineatum) in the southwest of Margarita Island, July 2005 to June 2006. A sample of 1,378 males and 1,143 females from artisanal fishing vessels of Boca del Río was analyzed.

[Reproduction of the Spanish sardine, Sardinella aurita (Clupeiformes: Clupeidae) from the south-eastern area of Margarita Island, Venezuela].

Sex ratio, sexual maturity, fecundity and time of spawning of the Spanish sardine (Sardinella aurita) from the south-eastern area of Margarita Island were determined through monthly samplings of commercial fisheries, from January 2004 to April 2005. A total of 3 736 individuals were examined. Sex ratio was 55.

[Association of sardine fishery, Sardinella aurita (Teleostei: Clupeidae) and environmental variability of the coastal upwelling ecosystem of Nueva Esparta, Venezuela].

The present research is an analysis of Spanish sardine fishing (Sardinella aurita) associated with some climatic and meteorologic parameters of the ecosystem from El Morro Nueva Esparta, Venezuela. The catch and environmental data from the area were taken in the period 1996-2000. Catch data as a function of wind speed, sea surface temperature, air temperature and rain were analyzed by means of simple lineal regression and multiple models.

[Association of the abundance and vertical distribution of tuna and beakfish in the southeast of the Caribbean sea].

The longline hooks suspension depth was estimated using the Mechanic Imitation of Flexible Systems method. The vertical distribution of tunas and billfish was determined by the relative abundance index, obtained from the catch by 11 to 25 m -long longline vessels, -based at Cumaná, Venezuela, South-eastern Caribbean Sea in depths of 65 to 142 m. The CPUE was evaluated per species, according to depth.