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Fernández, M.B.; Cucchi Colleoni, A.D.. |
Chemical aspects of the San Jorge Gulf benthic system, Argentina (2005-2010). A new contribution on the chemical aspects of the San Jorge Gulf benthic system in the distribution area of shrimp Pleoticus muelleri (Spence Bate, 1888) during 2005-2010 is presented. Concentration of dissolved oxygen in bottom water and mix layer and of total organic matter (TOM), total organic carbon (TOC), total nitrogen (TN), chlorophyll a (Chl a) and phaeopigments (Phaeo) in surficial sediments were analyzed. The origin and nutritional value of TOM deposited were also assessed through the C:N ratio. Water samples were collected during the Instituto Nacional de Investigación y Desarrollo Pesquero (INIDEP) seasonal research cruises in the period 2005-2010. Sediment samples... |
Tipo: Journal Contribution |
Palavras-chave: Chemical composition; Sediments; Dissolved oxygen; Sea water. |
Ano: 2013 |
URL: http://hdl.handle.net/1834/5506 |
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Negri, R.M.; Silva, R.I.; Segura, V.; Cucchi Colleoni, A.D.. |
The El Rincón area in the Argentine continental shelf (coastal sector between 39º S-41º S) is known as one of the main breeding areas of the Argentine anchovy (Engraulis anchoita) Northern stock. However, there is scarce information regarding the structure of the primary producers, base of the pelagic food webs. The aim of this study was to identify the different phytoplanktonic communities in a coastal section in the area (depth lower than 60 m) during February 2011. Mean surface chlorophyll a concentration was 0.72 mg m-3, with the highest value in the innermost station (E34: 1.84 mg m-3) and the lowest in the mid section (E31: 0.24 mg m-3). In depth, similar concentrations were registered, except for the deepest station where the maximum value was... |
Tipo: Journal Contribution |
Palavras-chave: Phytoplankton; Nannoplankton; Community composition; Size; Chlorophylls. |
Ano: 2013 |
URL: http://hdl.handle.net/1834/5491 |
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