Spatial distribution and seasonality of ichthyoplankton and anthropogenic debris in a river delta in the Caribbean Sea
| Autor: | André R. A. Lima, Tatiana Correa-Herrera, Mário Barletta, Luz F. Jiménez-Segura, L. B. Arango-Sánchez |
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| Rok vydání: | 2017 |
| Předmět: |
0106 biological sciences
Delta geography River delta geography.geographical_feature_category biology Ecology 010604 marine biology & hydrobiology Menticirrhus americanus Seston 010501 environmental sciences Aquatic Science Ichthyoplankton biology.organism_classification 01 natural sciences Zooplankton Abundance (ecology) Mangrove Ecology Evolution Behavior and Systematics 0105 earth and related environmental sciences |
| Zdroj: | Journal of Fish Biology. 90:1356-1387 |
| ISSN: | 0022-1112 |
| Popis: | Temporal changes in larval fish species composition and abundance compared with other components of the seston are described in four estuarine habitats in the Atrato Delta, Colombia. In comparison with zooplankton, fish larvae and egg density and anthropogenic debris abundance were low in the South Atrato Delta. Transparency, water temperature and chlorophyll a were the major factors influencing the spatiotemporal distribution of ichthyoplankton in the delta. The most abundant fish larvae were Astyanax sp. 1, Anchovia clupeoides, Cetengraulis edentulus, Anchoa sp., Bathygbius curacao, Dormitator maculatus, Hyporhamphus sp., Atherinella blackburni, Gobiosoma sp. 1 and Menticirrhus americanus (92·8% of total abundance). Spatial temporal analysis shows that in this delta, shrub (arracachal) and grass (eneal) habitats are important for freshwater and estuarine species, whilst mudflat and mangrove are important for estuarine species and estuarine-marine species, since most flexion and post-flexion stages of these species were found there. Anthropogenic debris density never surpassed the total ichthyoplankton density, but was ubiquitous. Shrub and mangrove habitats had higher densities of anthropogenic debris, since these are flood-stem habitats that trap solids. |
| Databáze: | OpenAIRE |
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