Results 11 to 20 of about 519,551 (181)

Medusas (Cnidaria: Hydrozoa) de una zona de afloramiento costero, Bahía Culebra, Pacífico, Costa Rica Medusae (Cnidaria: Hydrozoa) from a coastal upwelling zone, Culebra Bay, Pacific, Costa Rica

Revista de Biología Tropical, 2012
Las hidromedusas tienen un papel importante en redes tróficas marinas debido a sus hábitos alimenticios depredadores. Este es el primer estudio de este grupo del zooplancton gelatinoso en un area de afloramiento costero en América Central.
Karina Rodríguez-Sáenz, José A. Vargas-Zamora, Lourdes Segura-Puertas   +2 more
doaj   +2 more sources

Entre historias y culebras: más que una bahía (Bahía Culebra, Guanacaste, Costa Rica)

Revista de Biología Tropical, 2012
Bahía Culebra (Golfo de Papagayo, Guanacaste, Costa Rica) es una unidad geomorfológica semicerrada y bastante protegida, que cuenta con una amplia diversidad de recursos naturales, favoreciendo el asentamiento de poblaciones humanas y su consecuente ...
Celeste Sánchez-Noguera
doaj   +2 more sources

Reconstruction of Diadema mexicanum bioerosion impact on three Costa Rican Pacific coral reefs

Revista de Biología Tropical, 2012
The 1982-83 El Niño event produced a high coral mortality (50-90%) in several localities in the Eastern Tropical Pacific, which resulted in an outbreak of the sea urchin populations of Diadema mexicanum A.
Juan José Alvarado, Jorge Cortés, Héctor Reyes-Bonilla   +2 more
doaj   +4 more sources

Spatial and temporal variability of immature green turtle abundance and somatic growth in Puerto Rico

Endangered Species Research, 2014
Understanding conservation needs relies on robust estimates of key population parameters, such as survival, abundance and somatic growth. We investigated the somatic growth and abundance dynamics of 2 aggregations of immature green turtles, at Tortuga ...
R Patrício, CE Diez, RP van Dam
doaj   +2 more sources

Metales traza en sedimentos costeros de Costa Rica

Revista de Biología Tropical, 2004
Se determinó la concentración de hierro, plomo, cobre y zinc, en sedimentos de cuatro ecosistemas costeros de Costa Rica, por espectroscopia de absorción atómica, con llama o con horno de grafito.
Jairo García-Céspedes, Jenaro Acuña-González, José A Vargas-Zamora   +2 more
doaj   +2 more sources

Geología de Bahía Culebra, Guanacaste, Costa Rica

Revista de Biología Tropical, 2012
La geología de Bahía Culebra, Guanacaste, Costa Rica, está compuesta por rocas volcánicas de corteza oceánica; sedimentos marinos depositados en el talud, la plataforma continental y zonas someras cerca de la costa; secuencias de rocas piroclásticas ...
Pablo Herrera Zúñiga, Ana Enid Vargas
doaj   +2 more sources

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

Revista 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, José A Vargas-Zamora, Eddy Gómez-Ramírez, Jairo García-Céspedes   +3 more
doaj   +2 more sources

Fiddler Crabs (Crustacea: Decapoda: Ocypodidae) From Coastal Ecuador and the Galápagos Islands: Species Descriptions and DNA Barcodes. [PDF]

Ecol Evol
Twenty‐five taxa were collected during the surveys, while two more were noted from the literature and museum collections; five are new to Ecuador. DNA sequences for cytochrome c oxidase–subunit 1 were obtained for 27 operational taxonomic units with three morphologically indistinguishable cryptic or pseudo‐cryptic taxa were also revealed.
Thurman CL, McNamara JC, Shih HT, Capparelli MV.   +3 more
europepmc   +2 more sources

Assessing taxonomic, functional and phylogenetic diversity of giant clams across the Indo‐Pacific for conservation prioritization

Diversity and Distributions, Volume 28, Issue 10, Page 2124-2138, October 2022., 2022
Abstract Aim Giant clams are iconic bivalves known to serve numerous ecological roles contributing to the functioning of coral reef ecosystems. In the next decade, giant clams will continue to face critical anthropogenic pressures from over‐exploitation for their meat and shells, the aquarium trade and global warming that threaten the persistence of ...
Edwin Y. W. Tan, Mei Lin Neo, Danwei Huang   +2 more
wiley   +1 more source

Is Ocean Acidification Really a Threat to Marine Calcifiers? A Systematic Review and Meta‐Analysis of 980+ Studies Spanning Two Decades

Small, Volume 18, Issue 35, September 1, 2022., 2022
Marine calcifiers are widely believed to be impaired by ocean acidification, but this concept has been increasingly challenged by recent evidence. This systematic review and meta‐analysis of nearly 1000 studies reveal that many calcifiers are indeed more resistant to ocean acidification than initially thought, which can result from the positive effects
Jonathan Y. S. Leung, Sam Zhang, Sean D. Connell   +2 more
wiley   +1 more source