Listar Biología por autor "92ce25f2-d938-4dad-80f1-4c2bc021286d"
Mostrando ítems 1-10 de 10
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Distribución del pez sierra de dientes grandes (Pristis pristis) en Costa Rica: reconstrucción histórica y actual mediante métodos tradicionales y ADN ambiental
Valerio Vargas, Jorge Alberto (2021)The Critically Endangered largetooth sawfish Pristis pristis is one of the most threatened elasmobranch species and is currently thought to be locally extinct in at least 27 countries. Although largetooth sawfish information ... -
Estructura genética poblacional y conectividad del tiburón martillo (Sphyrna lewini) en áreas de crianza del Pacífico Tropical Oriental: Implicaciones para el manejo y la conservación
Elizondo Sancho, Mariana (2021-10)Defining demographically independent units and understanding gene flow between them is essential for managing and conserving exploited populations. The scalloped hammerhead shark, Sphyrna lewini, is a coastal semi-oceanic ... -
Feeding habits of the Pacific bearded brotula Brotula clarkae Hubbs, 1944 (Ophidiidae) along the Pacific coast of Costa Rica, Central America
Naranjo Elizondo, Beatriz; Espinoza Mendiola, Mario; Herrera Sarrias, Marcela; Clarke, Tayler McLellan; Wehrtmann, Ingo S. (2016)The present study analyzed the diet composition, ontogenetic shifts and dietary overlap of Brotula clarkae in relation to stage of maturity and sex. Samples were collected from the trawling fishery along the Pacific coast ... -
Mercury levels in muscle tissue of four common elasmobranch species from the Pacific coast of Costa Rica, Central America
Sandoval Herrera, Natalia Ivone; Vargas Soto, Juan Sebastián; Espinoza Mendiola, Mario; Clarke, Tayler McLellan; Fisk, Aaron T.; Wehrtmann, Ingo S. (2016-01)Mercury (Hg) is a non-essential and toxic element that is ubiquitous in the marine environment and biomagnifies through food webs. Given the high trophic position of many elasmobranch species, it is important to quantify ... -
Population structure and genetic connectivity 1 of the scalloped hammerhead shark (Sphyrna lewini) across nursery grounds from the Eastern Tropical Pacific: implications for management and conservation
Elizondo Sancho, Mariana; Rodríguez Arriatti, Yehudi Nafisa; Albertazzi Castro, Federico José; Bonilla Salazar, Adrián; Arauz Naranjo, Daniel; Arauz Vargas, Randall; Areano, Elisa; Ávalos Castillo, Cristopher; Brenes, Óscar; Chávez Calderón, Elpis Joan; Dominici Arosemena, Arturo; Espinoza Mendiola, Mario; Heidemeyer, Maike; Tavares, Rafael; Hernández, Sebastián (2022-09)Defining demographically independent units and understanding gene flow between them is essential for managing and conserving exploited populations. The scalloped hammerhead shark, Sphyrna lewini , is a coastal semi-oceanic ... -
Size at maturity of the Pacific bearded brotula (Ophidiidae: Brotula clarkae): a commercially exploited species in the Pacific of Costa Rica
Herrera Sarrias, Marcela; Clarke, Tayler McLellan; Naranjo Elizondo, Beatriz; Espinoza Mendiola, Mario; Wehrtmann, Ingo S. (2016)The deep-water shrimp fishery is of great commercial importance along the Pacific coast of Latin America. In Costa Rica, shrimp resources have declined considerably over the last decade. Therefore, fisheries have shifted ... -
Spatial and temporal changes in reef fish assemblages on disturbed coral reefs, north Pacific coast of Costa Rica
Arias Godínez, Gustavo; Jiménez Centeno, Carlos; Gamboa, Carlos; Cortés Núñez, Jorge; Espinoza Mendiola, Mario; Alvarado Barrientos, Juan José (2019)Benthic structure of coral reefs determines the availability of refuges and food sources. Therefore, structural changes caused by natural and anthropogenic disturbances can have negative impacts on reef‐associated communities. ... -
The effect of biogeographic and phylogeographic barriers on gene flow in the brown smoothhound shark, Mustelus henlei, in the northeastern Pacific
Chabot, Chris L.; Espinoza Mendiola, Mario; Mascareñas Osorio, Ismael; Rocha Olivares, Axayacatl (2015)We assessed the effects of the prominent biogeographic (Point Conception and the Peninsula of Baja California) and phylogeographic barriers (Los Angeles Region) of the northeastern Pacific on the population connectivity ... -
The effect of coral reef degradation on the trophic structure of reef fishes from Bahía Culebra, north Pacific coast of Costa Rica
Arias Godínez, Gustavo; Jiménez Centeno, Carlos; Gamboa, Carlos; Cortés Núñez, Jorge; Espinoza Mendiola, Mario; Beita Jiménez, Andrés; Alvarado Barrientos, Juan José (2021)Fishes play numerous key ecological roles that are critical for maintaining the structure and function of coral reefs. Natural and anthropogenic disturbances can produce structural changes in coral reef habitats, which ... -
Uso de cámaras remotas submarinas para caracterizar ensamblajes de depredadores en ambientes remotos del Pacífico Este Tropical
Cambra Agustí, Marta (2022)Los grandes depredadores marinos son generalmente animales longevos de gran tamaño como mamíferos marinos, tiburones, rayas y grandes teleósteos que ocupan niveles superiores en la cadena trófica. Se caracterizan por tener ...