Results 31 to 40 of about 210 (158)

Alike but genetically divergent: The resurrection of Urotrygon asterias (Jordan & Gilbert, 1883) from its closest relatives, the Munda and the Blotched stingray

open access: yesJournal of Fish Biology, Volume 105, Issue 4, Page 1044-1059, October 2024.
Abstract The genus Urotrygon comprises small‐ to medium‐sized endemic round rays on the American continent and has undergone several synonymization processes. Here, we used an integrative taxonomic approach, including meristic, morphometric, and mtDNA analyses, to resolve the particularly intricate relationship among Urotrygon munda Gill, 1863 ...
Nicolás Roberto Ehemann   +4 more
wiley   +1 more source

Un modelo biogeoquímico para el Golfo de Nicoya, Costa Rica

open access: yesRevista de Biología Tropical, 2007
De acuerdo con el "modelo de dos cajas de Broecker y Peng", se desarrolló un modelo de balance biogeoquímico del Golfo de Nicoya, considerando dos reservorios de nutrientes: aguas superficiales y aguas profundas.
Farid A Tabash Blanco
doaj  

The Importance of Values in Predicting and Encouraging Environmental Behavior: Reflections From a Costa Rican Small-Scale Fishery

open access: yesFrontiers in Marine Science, 2021
Encouraging people’s pro-environmental behaviors is an objective of Education for Sustainable Development. In the context of small-scale fisheries, unsustainable fishing practices are compromising the integrity of coastal communities and ecosystems ...
Astrid Sánchez-Jiménez   +7 more
doaj   +1 more source

Algunas características de las corrientes marinas en el Golfo de Nicoya, Costa Rica

open access: yesRevista de Biología Tropical, 2004
Se estudia la estructura espacial y vertical de las corrientes en el Golfo de Nicoya y su relación con los ciclos de marea usando correntímetros. Se encuentra que en el interior del golfo, la variación vertical de las corrientes marinas aumenta conforme ...
Omar G Lizano, Eric J Alfaro
doaj  

Do responsible fishing areas work? Comparing collective action challenges in three small-scale fisheries in Costa Rica

open access: yesInternational Journal of the Commons, 2019
Costa Rica is supporting Marine Areas of Responsible Fishing (AMPRs) to enable small-scale fishing communities to apply for exclusive harvesting and management rights within spatially delimited areas under a co-management policy framework.
Isis Ivania Chavez Carrillo   +4 more
doaj   +1 more source

Ueg Week 2020 Poster Presentations

open access: yes, 2020
United European Gastroenterology Journal, Volume 8, Issue S8, Page 144-887, October 2020.
wiley   +1 more source

The effects of trawling on the benthic fauna of the Gulf of Nicoya, Costa Rica.

open access: yesRevista de biologia tropical, 2001
Four van Veen grab replicates where collected to sample macrofauna (organism retained on a 500 micron mesh sieve) at four stations in the Gulf of Nicoya, during October 24, 1997, January 16 and April 30, 1998. This information was used to search for any effects of trawling on the benthic fauna.
Rostad, Thomas, Hansen, Katherine Loe
openaire   +2 more sources

Explotación de la pesquería de arrastre de camarón durante el período 1991-1999 en el Golfo de Nicoya, Costa Rica

open access: yesRevista de Biología Tropical, 2007
En Costa Rica, la pesquería del camarón que se lleva a cabo en el Golfo de Nicoya desde 1952 representó una de las más importantes actividades económicas de la región.
Farid A Tabash Blanco
doaj  

Fatty acids profile and nutritional composition of two tropical diatoms from the Costa Rican Pacific Coast

open access: yesGrasas y Aceites, 2017
Microalgae represent an important nutritional source for diverse organisms, therefore, their nutritional value, and more specifically, total lipid and fatty acid contents, must be considered.
K. Rodríguez-Núñez   +1 more
doaj   +1 more source

White spot syndrome virus and Enterocytozoon hepatopenaei in shrimp farms in Costa Rica

open access: yesAgronomía Mesoamericana, 2020
Introduction. The white spot syndrome virus (WSSV) causes systemic destruction of ectodermal and mesodermal tissues in shrimp and can cause 100 % mortality.
Nelson Peña Navarro   +2 more
doaj   +1 more source

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