Hydrogeochemical baseline in a human-altered landscape of the central Pacific coast of Costa Rica

2020 ◽  
Vol 42 (9) ◽  
pp. 2685-2701
Author(s):  
R. Sánchez-Gutiérrez ◽  
L. Mena-Rivera ◽  
R. Sánchez-Murillo ◽  
A. Fonseca-Sánchez ◽  
H. Madrigal-Solís
Keyword(s):  
Costa Rica ◽  
Pacific Coast ◽  
Central Pacific

scholarly journals Microplastic ingestion by a herring Opisthonema sp., in the Pacific coast of Costa Rica

2019 ◽  
Author(s):  
Luis Bermúdez-Guzmán ◽  
Crista Alpízar-Villalobos ◽  
Johan Gatgens-García ◽  
Gabriel Jiménez-Huezo ◽  
Marco Rodríguez-Arias ◽  
...  
Keyword(s):  
Costa Rica ◽  
Pacific Coast ◽  
Direct Effects ◽  
Central Pacific ◽  
Marine Life ◽  
Multidisciplinary Study ◽  
The Pacific ◽  
Tropical Areas ◽  
Filter Feeders ◽  
Aquatic Food

AbstractDespite there is a growing interest in studying the presence and effects of microplastics (MP) in fishes and other aquatic species, knowledge is still limited in tropical areas. In this study, we examined the presence of MP in the gastrointestinal content of 30 filter feeders of thread herring, Opisthonema complex (Clupeiformes: Clupeidae) from the Central Pacific coast of Costa Rica. We detected the presence of MP in 100% of the individuals with an average of 36.7 pieces per fish, of which 79.5% were fibers and 20.5% particles. To our knowledge, this is the first study in Costa Rica that demonstrates the presence of MP in planktivorous fishes. The effects of microplastics ingestion by O. libertate and its transit through aquatic food webs should be studied in greater detail, with greater number of sampling points at different times of the year. However, our work confirms that contamination by microplastics is having direct effects on the marine life of Costa Rica.CapsuleThis is the first multidisciplinary study in Costa Rica demonstrating the presence and nature of microplastics in the digestive tract of planktivorous fish.

scholarly journals The community of Mata de Limón, central Pacific coast of Costa Rica and the extraction of colonchos Callichirus seilacheri (Bott, 1955) (Decapoda: Axiidea: Callianassidae)

2017 ◽  
Vol 43 (3) ◽  
pp. 575-580
Author(s):  
Patricio Hernáez ◽  
Hernán Granda-Rodríguez
Keyword(s):  
Costa Rica ◽  
Central America ◽  
Pacific Coast ◽  
Management Program ◽  
Strongly Correlated ◽  
Total Abundance ◽  
Central Pacific ◽  
Sustainable Harvesting ◽  
Local Resource ◽  
The Pacific

We conducted monthly visits to the coastal community of Mata de Limón (December 2011 to November 2012) in central Pacific of Costa Rica for assessment the extraction of the burrowing shrimp called coloncho Callichirus seilacheri, a species intensely caught as bait for fishing along the Pacific coast of Central America. The outcomes indicate that fishery effort varied between 4 and 14 harvesters day-1 with a high percentage of them from the same community (70-100%). Daily catch varied between 76 and 1120 shrimps and its value was strongly correlated with catches realized for the local harvesters (R2= 0.88). The shrimps density and total abundance in Mata de Limón was estimated in 1.2 ± 0.88 ind m-2 and 49,607 ± 3,638 individuals, respectively. Ovigerous females were exclusively present between May and November, peak in September. According to our outcomes, population of C. seilacheri in Mata de Limón could be in risk of overfishing if the daily catches exceed 800 individuals. The main results of the present study allow recommend the implementation of a total fishing ban during the reproduction peak of C. seilacheri directed to protection and conservation of this local resource for its sustainable harvesting. Also, we suggest the establishment of a management program between the community of Mata de Limón and the Instituto Costarricense de Pesca y Acuicultura (INCOPESCA) in order to optimize and legalize the extraction of this important resource.

Biogardens as constructed wetlands in tropical climate: A case study in the Central Pacific Coast of Costa Rica

2019 ◽  
Vol 658 ◽  
pp. 1023-1028 ◽  
Author(s):  
Roy Pérez-Salazar ◽  
Carmen Mora-Aparicio ◽  
Carolina Alfaro-Chinchilla ◽  
Jihad Sasa-Marín ◽  
Carola Scholz ◽  
...  
Keyword(s):  
Costa Rica ◽  
Constructed Wetlands ◽  
Pacific Coast ◽  
Tropical Climate ◽  
Central Pacific

scholarly journals Brucella sp. sequence-type 27 associated with abortion in dwarf sperm whale Kogia sima

2021 ◽  
Vol 67 (4) ◽  
Author(s):  
Gabriela Hernández-Mora ◽  
Rocío González-Barrientos ◽  
Eunice Víquez-Ruíz ◽  
José David Palacios-Alfaro ◽  
Gianmarco Bettoni-Rodríguez ◽  
...  
Keyword(s):  
Costa Rica ◽  
Pacific Coast ◽  
Sperm Whale ◽  
Sequence Type ◽  
Central Pacific ◽  
Kogia Sima

AbstractA dwarf sperm whale Kogia sima stranded alive along the Central Pacific Coast of Costa Rica. The whale, handled by tourists and local inhabitants, was weak, had buoyancy difficulties, and eventually aborted and died, showing severe necrotizing placentitis and other pathological signs. Both the mother and the fetus had antibodies against Brucella lipopolysaccharide. Brucella organisms were isolated from various tissues of both animals and were characterized. The bacterium genome corresponded to sequence-type 27 (ST27) and clustered together with other Brucella ST27 isolated in humans and cetaceans.

Contrasting effects of the El Niño 2015–16 event on coral reefs from the central pacific coast of Mexico

2021 ◽  
Vol 42 (2) ◽  
Author(s):  
Héctor Nava ◽  
Norma López ◽  
Pedro Ramírez‐García ◽  
Elizabeth Garibay‐Valladolid
Keyword(s):  
Coral Reefs ◽  
El Niño ◽  
Pacific Coast ◽  
El Nino ◽  
Central Pacific

Seagrass characterization on the southern Pacific coast of Costa Rica: history, vegetation, and environment

2020 ◽  
Vol 63 (5) ◽  
pp. 429-438
Author(s):  
Jimena Samper-Villarreal ◽  
Jorge Cortés
Keyword(s):  
Costa Rica ◽  
Pacific Coast ◽  
Management Strategies ◽  
Shoot Density ◽  
Nutrient Concentrations ◽  
Seagrass Habitat ◽  
Spatial And Temporal Variability ◽  
Seagrass Species ◽  
Seagrass Biomass ◽  
Herbarium Collections

AbstractSeagrass conservation and management requires scientific understanding of spatial and temporal variability, information that is currently limited for the Eastern Tropical Pacific (ETP). Here, we analysed seagrass presence based on previous reports, herbarium collections and stakeholder knowledge, combined with field characterization in Golfo Dulce, southern Pacific coast of Costa Rica. Seagrasses were found at multiple locations along a narrow border close to shore and in up to 6 m depth within Golfo Dulce, dating back to 1969. Two seagrass species were found, Halophila baillonii and Halodule beaudettei. Seagrass biomass values for Golfo Dulce (12.0 ± 8.5 g DW m−2) were lower and water nutrient concentrations were higher than previously reported in the gulf. Shoot density (1513 ± 767 shoots m−2) was similar to previous reports. Stable isotope values in seagrass were −11.3 ± 1.0‰ δ13C and 1.2 ± 0.9‰ δ15N; while those in sediments were −26.1 ± 1.3 and 2.5 ± 0.9‰. In Golfo Dulce, isotopic values of both seagrass species do not overlap with other known primary producers. Management strategies should aim to minimize known seagrass stressors, protect potential seagrass habitat, and take into account the dynamic life strategies of the two seagrass species found.

First study of the Polycladida (Rhabditophora, Platyhelminthes) from the Pacific Coast of Costa Rica

Zootaxa ◽  
2021 ◽  
Vol 4964 (2) ◽  
pp. 363-381
Author(s):  
PATRICIA SOUTULLO ◽  
DANIEL CUADRADO ◽  
CAROLINA NOREÑA
Keyword(s):  
Costa Rica ◽  
Intertidal Zone ◽  
Pacific Coast ◽  
New Records ◽  
Rocky Intertidal ◽  
Animal Kingdom ◽  
Invertebrate Diversity ◽  
Marine Park ◽  
Rocky Intertidal Zone ◽  
The Pacific

In the present work was carried out in the intertidal zone of Las Baulas de Guanacaste National Marine Park (PNMB) located on the Pacific coast of Costa Rica.                The main objective was to contribute to knowledge about the invertebrate diversity of the park, one of the richest bioregions on the planet, about which little is known. This study assesses the Order Polycladida Lang, 1884, a cornerstone of this ecosystem and one of the most cosmopolitan and plastic invertebrate taxa in the animal kingdom.                In total, 57 individuals were collected in the rocky intertidal zone of Carbón and Langosta beaches. Nine different species were identified, of which four are new for Costa Rica: Semonia bauliensis n. sp.; Cryptostylochus sesei n. sp.; Paraplanocera angeli n. sp., Prostheceraeus fitae n. sp.; and five new records: Paraplanocera oligoglena (Schmarda, 1859); Marcusia ernesti Hyman, 1953; Enchiridium magec Cuadrado, Moro & Noreña, 2017; Pseudobiceros bajae (Hyman, 1953); and the genus Boninia spp. 

Sign in / Sign up

Export Citation Format

Share Document