Data/hora: 16/06/2024 08:54:28

Provedor de dados: | 20
País: | Belgium

Título:

Aspectos químicos del sistema bentónico del golfo San Jorge, Argentina (2005-2010)

Chemical aspects of the San Jorge Gulf benthic system, Argentina (2005-2010)

Autores: | Fernández, M.B.; Cucchi Colleoni, A.D.
Data: | 2014-06-12
Ano: | 2013
Palavras-chave: | Chemical composition; Sediments; Dissolved oxygen; Sea water.
Resumo: | 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 derive from the 2006 Spring and Summer cruises. The seasonal results obtained from the descriptive statistical analysis of all variables were compared applying the Kruskal Wallis non parametric test. The values of dissolved oxygen in bottom water and mix layer ranged 2.65-8.00 ml O2 l-1 and 4.25-7.72 ml O2 l-1, respectively. Said values fall within the normal range known for oxygenated neritic environments. TOM, TOC, TN, Chl a and Phaeo concentrations as well as the C:N ratio values were lower than those observed in the gulf during 1999-2003.
Tipo: | Journal Contribution
Idioma: | Espanhol

Identificador:

INIDEP Informe Técnico, 87, p. 1-22

0327-9642

http://hdl.handle.net/1834/5506

Fonte: | http://creativecommons.org/licenses/by-nc/3.0/