Results 1 to 10 of about 211 (159)
Genetic population dynamics of the critically endangered scalloped hammerhead shark (Sphyrna lewini) in the Eastern Tropical Pacific. [PDF]
Ecol Evol, 2022 The scalloped hammerhead shark is a Critically Endangered (IUCN Red List), circumglobally distributed species in warm temperate and tropical seas. This species exhibits both periods of restricted movements as well a strong migratory propensity and is known to form iconic, large seasonal aggregations at offshore oceanic islands.
Harned SP +11 more
europepmc +2 more sources
Identification of Drivers of Change of the Gulf of Nicoya Ecosystem (Costa Rica) [PDF]
Frontiers in Marine Science, 2020 The Gulf of Nicoya is a large tropical estuary located on the Pacific coast of Costa Rica and accounts for the country’s main fish production. It is increasingly impacted not only by its fisheries, but also by urbanization, tourism developments, the ...
Viola Alms, Viola Alms, Matthias Wolff
doaj +2 more sources
Fiddler Crabs (Crustacea: Decapoda: Ocypodidae) From Coastal Ecuador and the Galápagos Islands: Species Descriptions and DNA Barcodes. [PDF]
Ecol EvolTwenty‐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 +3 more
europepmc +2 more sources
Geophysical Research Letters, 2002 Tomographic images constrain the existence of a subducted seamount beneath the Gulf of Nicoya, Costa Rica. The subducted seamount is found at a depth of 30 km within the rupture area of the March 25, 1990, Mw = 7.0 Gulf of Nicoya earthquake. The Gulf of Nicoya earthquake was a typical thrust‐type subduction earthquake and occurred on a shallow dipping ...
Edi Kissling
exaly +4 more sources
On Branchiostoma californiense (Cephalochordata) from the Gulf of Nicoya estuary, Costa Rica
Revista de Biología Tropical, 2010 The cephalochordates are represented by the lancelets, of which species of the genus Branchiostoma are the best known. In recent years, these organisms have been the center of activity of studies focusing on the phylogenetic relationships of the ...
José A Vargas, Harlan K Dean
doaj +8 more sources
Microbial source tracking in shellfish harvesting waters in the Gulf of Nicoya, Costa Rica [PDF]
Water Research, 2017 Current microbial water quality monitoring is generally limited to culture-based measurements of fecal indicator bacteria (FIB). Given the many possible sources of fecal pollution within a watershed and extra-intestinal FIB reservoirs, it is important to determine source(s) of fecal pollution as a means to improve water quality and protect public ...
Matthew Verbyla +2 more
exaly +4 more sources
The Gulf of Nicoya (Costa Rica) Fisheries System: Two Decades of Change [PDF]
Marine and Coastal Fisheries, 2019 Abstract In the early 1990s, ecological and fishery data from the Gulf of Nicoya (Pacific Ocean) were holistically analyzed, and a trophic model was constructed using the Ecopath modeling approach. The results indicated that this tropical estuary, which is a Costa Rican fishery hot spot, was already overexploited by shrimp trawlers and ...
Viola Alms, Matthias Wolff
exaly +2 more sources
Diversity of the free-living marine and freshwater Copepoda (Crustacea) in Costa Rica: a review [PDF]
ZooKeys, 2014 The studies on marine copepods of Costa Rica started in the 1990’s and focused on the largest coastal-estuarine systems in the country, particularly along the Pacific coast.
Alvaro Morales-Ramírez +3 more
doaj +2 more sources
Frontiers in Marine Science, 2019 Trophic models of the Ecopath with Ecosim (EwE) type and local ecological knowledge (LEK) have widely been applied to fisheries assessment and management.
Achim SchlÜter +2 more
exaly +3 more sources
Fisheries assessment of Callinectes arcuatus (Brachyura, Portunidae) in the Gulf of Nicoya, Costa Rica [PDF]
Fisheries Research, 2006 The Callinectes arcuatus population of the Gulf of Nicoya and its current level of exploitation were investigated based on size frequency analysis of trap and trawl catches. Von Bertalanffy growth parameters (K = 0.89; CW∞ = 142 mm for males) are in the range reported for other species of this family and suggest that the male size at first maturity (CW
Matthias Wolff
exaly +4 more sources