Abstract:Previous work has highlighted the critical role of macroalgal productivity and dynamics in supporting and structuring marine food webs. Spatio-temporal variability in macroalgae can alter coastal ecosystems, a relationship particularly visible along upwelling-influenced coastlines. As a result o...
Resumen:Xel-Há es un parque ecoturístico marino donde no se permite ningún tipo de extracción de flora o fauna. Una de las principales atracciones turísticas en este parque son los peces de arrecife, no existiendo trabajos publicados sobre la comunidad íctica para este sitio. En este estudio se ana...
Distribución Animal/fisiología,
Biodiversidad,
Región del Caribe,
Peces/clasificación,
Peces/fisiología,
México,
Densidad de Población,
Dinámica Poblacional,
Salinidad,
Estaciones del Año,
Agua de Mar/química,
Análisis Espacio-Temporal,
Estadísticas no Paramétricas,
Temperatura
Abstract The fauna communities of ephemeral pools in southern Chile are characterized by heterogeneity of crustacean taxa; nevertheless, no detailed studies exist of their community structure. The aim of the present study was to analyze the crustacean community structure in two groups of ephemeral pools ...
Abstract An extensive literature review is made of the parasites in marine and freshwater fish in mainland Portugal, the Portuguese archipelagos of the Azores and Madeira, as well as in farmed fish. The host(s) of each parasite species, its location in the host, site of capture of the host, whenever poss...
Abstract This research evaluated the effect of flooding on the microphytobenthos community structure in a microbial mat from a tropical salt flat. Field samples were collected during four consecutive days: on the first three days the salt flat was dry, on the fourth day it was flooded by rain. In order t...
Adaptación Fisiológica/fisiología,
Cianobacterias,
Monitoreo del Ambiente/métodos,
Inundaciones,
Sedimentos Geológicos,
Microalgas/fisiología,
Lluvia,
Agua de Mar,
Cloruro de Sodio,
Clima Tropical,
Agua
Abstract:Coral reefs are under intense conditions of stress caused by the anthropogenic activities in coastal areas and the increase of human population. Water effluents from urban and industrial areas carry large amounts of sediments and pollutants affecting corals populations, inducing bioerosion, incr...
Antozoos/anatomía & histología,
Antozoos/química,
Arrecifes de Coral,
Monitoreo del Ambiente,
México,
Microscopía Electrónica de Rastreo,
Valores de Referencia,
Agua de Mar/química,
Espectrometría por Rayos X,
Tungsteno/análisis,
Contaminantes Químicos del Agua/química
Abstract:Reports on the abundances and on metal concentrations in intertidal estuarine invertebrates from the Eastern Tropical Pacific are rare. Thus, the objectives of this report are to make accessible data on the abundances (1984-1987, 49 dates; 2013, 12 dates) of sipunculans, brachiopods and hemichor...
Distribución Animal,
Cordados no Vertebrados/fisiología,
Costa Rica,
Monitoreo del Ambiente/métodos,
Estuarios,
Sedimentos Geológicos,
Invertebrados/fisiología,
Metales/análisis,
Nematodos/fisiología,
Océano Pacífico,
Densidad de Población,
Valores de Referencia,
Estaciones del Año,
Agua de Mar/química,
Análisis Espacio-Temporal,
Especificidad de la Especie,
Espectrofotometría Atómica,
Contaminantes Químicos del Agua/análisis
Abstract:Coral reef ecosystems are under stress of different origins, from factors including sedimentation, fragmentation, overfishing, and tourism, depending on their geographical location, depth, and proximity to recreation areas. In this study of Juluapan Lagoon, we examined the relationship between v...
Análisis de Varianza,
Bahías,
Conservación de los Recursos Naturales,
Arrecifes de Coral,
Sedimentos Geológicos/química,
México,
Océano Pacífico,
Fitoplancton,
Salinidad,
Estaciones del Año,
Agua de Mar/química,
Temperatura,
Factores de Tiempo,
Contaminación Química del Agua/efectos adversos,
Calidad del Agua
Abstract The objectives of the present study is to describe the size for exploitation and gonadal maturation of L. pectinata in Peças Island in Paraná coast. Twenty two individuals were sampled every month, from an intertidal flat of the Peças River, Municipality of Guaraqueçaba, during two periods &...
Bivalvos/crecimiento & desarrollo,
Bivalvos/fisiología,
Tamaño Corporal,
Brasil,
Ambiente,
Gametogénesis/fisiología,
Gónadas/crecimiento & desarrollo,
Reproducción/fisiología,
Ríos,
Salinidad,
Estaciones del Año,
Agua de Mar/análisis,
Temperatura
O uso das águas costeiras para fins recreacionais está associado com benefícios à saúde e bem-estar, todavia eventuais impactos negativos podem diminuir estes benefícios. Esses usos variam de acordo com o tipo de atividade desenvolvida, sendo que a recreação de contato primário requer contato di...
