Northern Shrimp (Pandalus borealis) on Flemish Cap in July-August 1997

A stratified random bottom-trawl surveys on Flemish Cap was carried out in July-August 1997 following the same method used since 1988. Results of shrimp population (Pandalus borealis) are presented in this paper and compared with those previously observed

Some Aspects of the Thorny Skate, Amblryraja radiata, Reproductive Biology in NAFO Division 3N (Elasmobranch Fisheries – Oral)

Thorny skate samples from August to December 2000 were examined to determine both sexes maturity stages, length at maturity and females potential fecundity. The size and number of the ovarian oocytes increase as the maturation progress. In fully mature ovaries the average number of developed eggs is between 40 and 45 and its final mean size is 12.5 mm. The minimum number of developing eggs per female found in the ovaries was 2 and the maximum 88. Very few females at either the capsule extrusion or other of the active uterine stages have been found. On the contrary most part of the adult males were at the fully mature stages, suggesting that the samples could be taken on a mating aggregation season. Using data from 1997, 1999 and 2000, both maturity ogives have been fitted. The females length at maturity obtained ranged between 60 and 54 cm and that of the males between 43 and 51 cm

Informe de la Campaña de Investigación Pesquera EL SALVADOR 2009, del 2 al 14 de diciembre, B/O Miguel Oliver

Informe de Campaña. Equipo de Pesquerías Lejanas. Centro Oceanográfico de Vigo.La campaña de investigación oceanográfico-pesquera EL SALVADOR 2009, dirigida por el Instituto Español de Oceanografía, es la primera campaña de Cooperación entre España y El Salvador, con el objetivo principal de conocer la composición específica de la fauna demersal de la plataforma y talud continental de El Salvador, así como los rendimientos de las principales especies capturadas. La campaña se realizó entre el 2 y el 14 de diciembre de 2009 a bordo del buque de investigación Miguel Oliver, propiedad de la Secretaría General del Mar. El área de estudio comprende los fondos de la plataforma y talud de la costa pacífica de El Salvador desde los 100 m hasta la isóbata de 1000 m de profundidad, entre los grados 13º N - 88º W y 14º N - 90º W

Some Aspects of the Thorny Skate (Raja radiata Donovan, 1808) Reproductive Biology in NAFO Division 3N Regulatory Area

Thorny skate samples from August to December 2000 were examined to determine both sexes maturity stages, length at maturity and females potential fecundity. The size and number of the ovarian oocytes increase as the maturation progress. In fully mature ovaries the average number of developed eggs is between 40 and 45 and its final mean size is 12.5 mm. The minimum number of developing eggs per female found in the ovaries was 2 and the maximum 88. Very few females at either the capsule extrusion or other of the active uterine stages have been found. On the contrary most part of the adult males were at the fully mature stages, suggesting that the samples could be taken on a mating aggregation season. Using data from 1997, 1999 and 2000, both maturity ogives have been fitted. The females length at maturity obtained ranged between 60 and 54 cm and that of the males between 43 and 51 cm

Seasonality and reproductive parameters of the thorny skate (Raja radiata Donovan, 1808) in NAFO Division 3N

In this paper the seasonal and geographic pattern of the fishing effort distribution targeting thorny skate is described. The fishery is performed in fall and in a quite restricted area of Div. 3N, in shallow waters of less than 100 m. The results support that the fishery is largely based on a skate mating concentration. The estimated length at 50 % maturity in males and females is 51 and 55 cm respectively

Results of the Spanish Experimental Fishing in NAFO Subarea 1

An experimental fishing was carried out with a commercial Spanish vessel from October to December of the year 2003 in the Subarea 1. The main objective of the experimental fishing was to search for cephalopods species concentrations inside the territorial waters of Greenland. During the experimental fishing a scientific observer stayed on board to collect effort data, catches and yields by haul and Division, strata and gear. The observer carried out length distributions samplings of the following species: Pandalus borealis, Sebastes spp., Hippoglossoides platessoides, Gadus morhua and Macrourus berglax. Biological samplings of Reinhardtius hippoglossoides, Hippoglossoides platessoides, Gadus morhua and Gadus ogac were also carried out. Greenland halibut was the main species caught and the cephalopods, target species, have not been found in the experimental fishing

Spanish Skate (Raja radiata Donovan, 1808) Fishery in the Grand Bank (NAFO Division 3N): 1997-2000.

The Spanish skate fishery in NAFO Regulatory Area is performed from August to November in a quite restricted area of Div. 3N at depths between 51 and 100 m. Fishing effort, unstandardized catch rates, length composition, sexual maturity, by-catch, discards and sex-ratios are presented in this paper. The length range of thorny skate in the catches is mainly between 30 and 85 cm, with a mode of 50-51 cm. Both sexes appeared equally represented in the catches. The main by-catch in this fishery is American plaice and yellowtail flounder. A large proportion of mature males are observed

Preliminary results of research cruises carried out by IEO on the High Seas of the SW Atlantic (2008-2009), regarding cephalopod target species (Illex argentinus and Loligo gahi).

In March 2008 the Instituto Español de Oceanografía (IEO) through its Oceanographic Centre in Vigo (IEO-COV) initiated a historical series of research cruises aiming the assessment of the main commercial stocks on the High Seas (HS) of the SW Atlantic, including the study of two cephalopod species of important commercial interest, Argentine short-fin squid (Illex argentinus) and Patagonian squid (Loligo gahi). This working document presents a brief description of the methodology used in the cruises and preliminary results concerning CPUE by depth strata and geographical distribution of both mentioned species