Results 81 to 90 of about 2,009 (208)

Hidrocarburos de petróleo, disueltos y dispersos, en cuatro ambientes costeros de Costa Rica

open access: yesRevista de Biología Tropical, 2004
Entre los años 2000 a 2002 se recolectaron y se analizaron 130 muestras de agua de mar en las costas de Costa Rica, para determinarles la concentración de hidrocarburos de petróleo disueltos y dispersos (HPDD), referida a equivalentes de criseno en ...
Jenaro Acuña-González   +3 more
doaj  

Hydroacoustic estimation of fish biomass in the Gulf of Nicoya, Costa Rica

open access: yesRevista de Biología Tropical, 2000
A stratified sampling design was used for a hydroacoustic survey of the inner parts of the Gulf of Nicoya in 1987 and 1988. The bottom topography of the inner Gulf was modeled by introducing the concept of a topographical basin model, as the basis for ...
John Hedgepeth   +3 more
doaj  

The Fisheries for Mangrove Cockles,Anadaraspp., from Mexico to Peru, With Descriptions of Their Habitats and Biology, the Fishermen’s Lives, and the Effects of Shrimp Farming [PDF]

open access: yes, 2001
This paper provides the first description of the mangrove cockle, Anadara spp., fisheries throughout their Latin American range along the Pacific coast from Mexico to Peru. Two species, A. tuberculosa and A.
MacKenzie, Jr., Clyde L.
core  

Carbon release from submarine seeps at the Costa Rica fore arc: implications for the volatile cycle at the Central America convergent margin [PDF]

open access: yes, 2010
We report total dissolved inorganic carbon (DIC) abundances and isotope ratios, as well as helium isotope ratios (3He/4He), of cold seep fluids sampled at the Costa Rica fore arc in order to evaluate the extent of carbon loss from the submarine segment ...
Alt   +98 more
core   +1 more source

EVALUACIÓN POBLACIONAL DEL STOCK EXPLOTABLE DEL COMPLEJO OPISTHONEMA (PISCES: CLUPEIDAE) EN EL GOLFO DE NICOYA, COSTA RICA

open access: yesRevista Ciencias Marinas y Costeras, 2011
El género Opisthonema sustenta la pesquería de sardina en Costa Rica. Esta investigación se orientó hacia la evaluación poblacional del stock explotable de esta pesquería en el Golfo de Nicoya.
Luis A. Vega Corrales
doaj  

Artificial fertilization of the eggs, and rearing and identification of the larvae of the anchoveta, Cetengraulis mysticetus [PDF]

open access: yes, 1962
ENGLISH: The anchoveta, Cetengraulis mysticetus (Günther), is an important bait fish used to capture tunas in the Eastern Tropical Pacific Ocean. Contributions to the early life history of this species in the Gulf of Panama were made by Simpson (1959 ...
Barrett, Izadore   +2 more
core  

Presencia de los dinoflagelados Ceratium dens, C. fusus y C. furca (Gonyaulacales: Ceratiaceae) en el Golfo de Nicoya, Costa Rica

open access: yesRevista de Biología Tropical, 2004
Las proliferaciones algales nocivas (PAN) son un fenómeno frecuente en el Golfo de Nicoya. La morfología y fisiología de estas microalgas son muy importantes debido al hecho de que las especies involucradas en estos eventos presentan características ...
Maribelle Vargas-Montero, Enrique Freer
doaj  

Larval abundance patterns of Carcinus-Maenas (Decapoda, Brachyura) in Canal de Mira (Ria de Aveiro, Portugal) [PDF]

open access: yes, 1994
Larval stages of Carcinus maenas (L.) were intensively sampled in the Canal de Mira (Ria de Aveiro, Portugal) during 2 lunar months: February 12 to March 11 and May 9 to June 7, 1990.
Costlow, J. D.   +2 more
core   +1 more source

Composition and zoogeographical affinities of the stomatopod and decapod crustacean fauna collected during the Ceemex P4 cruise in the Gulf of Tehuantepec, Mexico [PDF]

open access: yes, 1998
The CEEMEX-P4 cruise represented the first sampling expedition to the Gulf of Tehuantepec within the frame of a comprehensive project aimed at the study of demersal resources associated with major shrimp (Penaeidae) fishing grounds off the coast of ...
Hendrickx, M.E., Vázquez-Cureño, L.A.
core  

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