Growth and age composition of northern bluefin tuna, Thunnus thynnus, caught in the Eastern Pacific Ocean, as estimated from length-frequency data, with comments on trans-Pacific migrations [PDF]
ENGLISH: The spawning of Pacific northern bluefin tuna, Thunnus thynnus, takes place only in the western Pacific Ocean (WPO), but substantial numbers of the juveniles migrate to the eastern Pacific Ocean (EPO), where they remain for several months, or ...
Bayliff, William H.
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Cardiac Performance of Free-Swimming Wild Sockeye Salmon during the Reproductive Period. [PDF]
Prystay TS +7 more
europepmc +1 more source
Report of the Inter-American Tropical Tuna Commission for the year 1952 [PDF]
ENGLISH: The Inter-American Tropical Tuna Commission, established by a Convention between the United States and Costa Rica, has as its purpose the collection and interpretation of information which will facilitate maintaining, at levels of maximum ...
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Inducción al desove de la almeja estuarina amenazada, Polymesoda arctata (DESHAYES, 1854)
In order to promote knowledge in conservation and sustainable use of globally threatened mollusks, juveniles are being obtained in the laboratory for restocking and aquaculture production. P. arctata has a high potential for aquaculture because they feed on primary productivity, have early maturity, external fertilization, hermaphroditism and the ...
openaire +1 more source
Se efectuaron experimentos de desove del caracol dulceacuícola [Pomacea patula Baker, 1922] en tanques exteriores durante un año. Las observaciones incluyeron el desove de 30 hembras, total de huevos depositados y la eclosión de pequeños caracoles ...
A. O. Meyer-Willerer, A. Santos-Soto
doaj
Se marcó y se recapturó la trucha Arco Iris, Salmo Gairdneri, durante marzo y abril de 1983, en los ríos Ciruelas y Sarapiquí, provincia de Heredia, Costa Rica.
Debbie Irwin
doaj
Efecto de la ablación unilateral del pedúnculo ocular sobre el tiempo de maduración de los ovocitos y fecundidad de Penaeus vannamei [PDF]
Los estudios de los procesos de maduración tendientes a optimizar el cultivo de P. vannamei, son necesarios para poder planificar adecuadamente la producción y satisfacer la demanda de poslarvas de mejor calidad a escala comercial que exige hoy en día
Saldarriaga Y., David E. +1 more
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Cytogenetic study in the sea urchin "Paracentrotus lividus" (Lamarck, 1816) [PDF]
[Resumen] El erizo de mar común Paracentrotus lividus (Lamarck, 1816) es la especie diana de la pesquería de erizo en Europa. A pesar de que esta especie alcanza su máxima abundancia en las costas gallegas, la sobreexplotación de los bancos está ...
González-Castellano, Inés
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Patrones de distribución y fluctuaciones de desoves de anchoveta y sardina
Expone los resultados relativos a los estudios sobre las primeras etapas de vid de la anchoveta principalmente.
openaire +2 more sources
Population structure of Pacific yellowfin tuna [PDF]
ENGLISH: The population structure and production of Pacific yellowfin tuna, Thunnus albacares, were examined by studying most of the basic data available on stock assessment, as well as other data, for the period 1965 to 1972.
Honma, M. +2 more
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