The mesozooplankton of the Patos Lagoon Estuary, Brazil: trends in community structure and secondary production
| Autor: | Erik Muxagata, Priscila Teixeira-Amaral, Vanessa Ochi Agostini, Danielle Ortiz de Ortiz, Waldemar José Appolinário Amaral |
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| Rok vydání: | 2017 |
| Předmět: |
0106 biological sciences
Notodiaptomus geography geography.geographical_feature_category 010504 meteorology & atmospheric sciences Brackish water biology ved/biology 010604 marine biology & hydrobiology ved/biology.organism_classification_rank.species Community structure Estuary Aquatic Science Oceanography biology.organism_classification 01 natural sciences Zooplankton Fishery Productivity (ecology) Environmental science Ecology Evolution Behavior and Systematics Copepod 0105 earth and related environmental sciences Acartia tonsa |
| Zdroj: | Marine Biology Research. 13:48-61 |
| ISSN: | 1745-1019 1745-1000 |
| Popis: | The zooplankton abundance and composition of the Patos Lagoon Estuary (PLE) reflects the local hydrological regime with alternating periods of flood, freshwater run-off and mixing of water. However, little is known about the interannual zooplankton variations and secondary productivity of this community. We sampled zooplankton monthly at two stations within the estuary from April 2009 to March 2013. The brackish/marine calanoid copepod Acartia tonsa was found to play an important role in the PLE, with secondary production values of 1.17 mg C m−3 day−1 being comparable with the high values achieved in other estuaries worldwide. During the study period, the greatest change in the community structure was observed in the spring-summer under El Nino influence when the prolonged terrestrial run-off combined with higher temperatures allowed the establishment of a freshwater community that was largely composed of the calanoid copepod Notodiaptomus incompositus, cyclopoids and cladocerans. The freshwater c... |
| Databáze: | OpenAIRE |
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