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Trophic habits of the flounder Citharichthys gilberti (Paralichthyidae) and its spatiotemporal variability in Buenaventura Bay, Colombian Pacific Boletín de Investigaciones
García-Cardona,Evelin; Molina,Andrés; Duque,Guillermo.
ABSTRACT Fishes belonging to the order Pleuronectiformes, are flattened and inhabit estuarine bottoms. They are important because they provide an energy exchange between the demersal habitat and the water column, reflecting the effects of environmental variations in the ecosystem and the dynamics of trophic relation between species. This research evaluates the influence that some space-time variations have on the diet of Citharichthys gilberti in Buenaventura Bay. 92 stomachs corresponding to sites with different environmental characteristics within the Bay were examined. Feeding indices were determined to make a trophic characterization and evaluate the interactions between trophic habits and environmental variables. The prey with the highest relative...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Flatfishes; Estuaries; Foodhabits; Environmental factors..
Ano: 2021 URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0122-97612021000200133
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Increase in microplastic pollution in the surface waters of Buenaventura Bay, Colombian Pacific Boletín de Investigaciones
Vidal,Laura; Molina,Andrés; Duque,Guillermo.
ABSTRACT Microplastic (MP) pollution in coastal ecosystems is a serious problem throughout the world. In Colombia, there is little information on this issue, especially for the Pacific coast. For these reasons, the density, distribution, and types of MP on the surface of the water were studied in the bay of Buenaventura estuary, Colombia’s main seaport. A total of 36 samples were collected in two estuarine areas: the inner estuary (IE), closest to the main urban area and river mouths, and the external estuary (EE), further away from both areas, during three seasons: rainy, transition, and dry, in 2015 and 2019. On average, the density of the MP increases annually by 28.7 % in the surface waters of Buenaventura Bay. It was also found that the highest...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Buenaventura Bay; Microplastics; Spatial variation; Climate seasons; Monitoring..
Ano: 2021 URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0122-97612021000200113
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