Results 71 to 80 of about 2,009 (208)

Generational Transition of Subsistence Fishing Practices in the Pacific Community of Venado Island, Costa Rica [PDF]

open access: yes, 2007
The goal of this ethnographic study is to document the way that tourism has affected the subsistence fishing activities on the island of Venado, Costa Rica.
Venegas, Maria D.
core   +1 more source

Hydrogeological system of erosional convergent margins and its influence on tectonics and interplate seismogenesis [PDF]

open access: yes, 2008
[1] Fluid distribution in convergent margins is by most accounts closely related to tectonics. This association has been widely studied at accretionary prisms, but at half of the Earth's convergent margins, tectonic erosion grinds down overriding plates,
Adam   +81 more
core   +2 more sources

Molluscan assemblage from a tropical intertidal estuarine sand-mud flat, Gulf of Nicoya, Pacific, Costa Rica (1984-1987)

open access: yesRevista de Biología Tropical, 2011
The availability of data sets covering more than a year is scarce for tropical environments. Advances in hardware and software speed-up the re-analysis of old data sets and facilitates the identification of hidden data patterns.
José A Vargas-Zamora   +1 more
doaj   +2 more sources

Reproducción y crecimiento del pargo mancha Lutjanus guttatus (Pisces: Lutjanidae) en el Golfo de Nicoya, Costa Rica

open access: yesRevista de Biología Tropical, 2009
Una de las pesquerías más importantes en el Golfo de Nicoya es la del pargo mancha (Lutjanus guttatus); su captura se realiza con diversas artes y principalmente por la flota artesanal.
Rosa L Soto Rojas   +3 more
doaj  

Planktonic primary production in a tidally influenced mangrove forest on the Pacific coast of Costa Rica. [PDF]

open access: yes, 2001
The seasonal variation of planktonic primary productivity was measured during one year in the main channel in the interior part of the mangrove forest of the Estero de Morales (Estero de Punta Morales), a mangrove system located in the Golfo de Nicoya ...
Cortes, J.   +2 more
core  

The distribution of nutrients, dissolved oxygen and chlorophyll a in the upper Gulf of Nicoya, Costa Rica, a tropical estuary

open access: yesRevista de Biología Tropical, 2007
in the Gulf of Nicoya on the Pacific Coast of Costa Rica, nutrient rich equatorial subsurface water (ESW) is upwelled in much of the lower gulf. These offshore waters are often regarded as the major source of nutrients to the gulf.
Jaime Palter   +2 more
doaj  

Hormone-induced spawning of wild and captive-grown spotted rose snapper Lutjanus guttatus using carp pituitary suspension and human chorionic gonadotropin

open access: yesCiencias Marinas, 2011
Hormone-induced spawning of the spotted rose snapper Lutjanus guttatus was studied using wild and cage-grown fish. Carp pituitary suspension (CPS) and human chorionic gonadotropin (hCG) were assessed.
J Boza-Abarca   +4 more
doaj   +1 more source

Monitoring systems for managing natural resources: economics, indicators and environmental externalities in a Costa Rican watershed [PDF]

open access: yes
The worsening degradation of natural resources urgently requires the adoption of more sustainable management practices. This need has led to growing interest and investment in monitoring systems for tracking the condition of natural resources. This study
Celis, Rafael   +3 more
core  

Three-dimensional P-wave velocity structure on the shallow part of the Central Costa Rican Pacific margin from local earthquake tomography using off- and onshore networks [PDF]

open access: yes, 2017
The Central Costa Rican Pacific margin is characterized by a high-seismicity rate, coincident with the subduction of rough-relief ocean floor and has generated earthquakes with magnitude up to seven in the past.
Alvarado, G. E.   +5 more
core  

Geometrical effects of a subducted seamount on stopping megathrust ruptures [PDF]

open access: yes, 2013
Author Posting. © American Geophysical Union, 2013. This article is posted here by permission of American Geophysical Union for personal use, not for redistribution.
Lin, Jian, Liu, Yajing, Yang, Hongfeng
core   +1 more source

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