Resumen
The hydrographical conditions founded in Port Foster (Deception Island) and Chile Bay (Greenwich Island) both belong to the South Shetlands Islands group, Antarctic Peninsula, has been described. This survey has been carried out from the Chilean Navy Oceanographic vessel "YELCHO" in January 1978. An stratification in the area closed with the Antarctic surface waters has been observed. The temperature ranged between -1,60 º C to 1,30º C in Port Foster and 0,46ºC to 1,70ºC in Chile Bay; the salinity ranged between 33.80 ‰ to 34,24‰ in Port Foster and 33,61‰ to 34 ‰ in Chile Bay; the dissolved oxygen varied between 3,47 to 7,02 ml O2/l in both area. The characteristic density (Sigma t) of Antarctic Surface waters in the area, i.e., 26,92 and 27,58 has been observed.
ARTIGOS
Observaciones hidrograficas en Bahia Foster y Bahia Chile (Islas Shetland del Sur) enero 1978
Dagoberto Arcos R.; Marco A. Salamanca O
Departamento de Biología Marina y Oceanografía, Instituto de Biologia, Universidade de Concepción, Concepción, Chile
SYNOPSIS
The hydrographical conditions founded in Port Foster (Deception Island) and Chile Bay (Greenwich Island) both belong to the South Shetlands Islands group, Antarctic Peninsula, has been described. This survey has been carried out from the Chilean Navy Oceanographic vessel "YELCHO" in January 1978. An stratification in the area closed with the Antarctic surface waters has been observed. The temperature ranged between -1,60 º C to 1,30º C in Port Foster and 0,46ºC to 1,70ºC in Chile Bay; the salinity ranged between 33.80 to 34,24 in Port Foster and 33,61 to 34 in Chile Bay; the dissolved oxygen varied between 3,47 to 7,02 ml O2/l in both area. The characteristic density (Sigma t) of Antarctic Surface waters in the area, i.e., 26,92 and 27,58 has been observed.
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Agradecimientos
Es nuestro especial interés reconocer el patrocinio y financiamiento del Instituto Antártico Chileno y agradecer a la tripulación del AGS YELCHO, Armada de Chile, sin cuya colaboración no habría sido posible realizar este trabajo.
- CARRITT, D.E. & CARPENTER, J.H. 1966. Comparison and evaluation of currently employed modifications of Winkler method for determining dissolved oxygen in seawater: a NASCO report. J. mar. Res., 24(3):286-318.
- GALLARDO, V.A. & CASTILLO, J.G. 1968. Mass mortality in the benthic infauna of Port Foster resulting from the eruptions in Deception Island, South Shetland Is. Publnes Inst, antart. chileno, (16):1-13.
- ______ & ______. 1969. Quantitative benthic survey of the infauna of Chile Bay (Greenwich Is., South Shetland Is.). Gayana, Zool., (16):1-18.
- ______ & ______ 1970. Quantitative observations on the benthic macro fauna of Port Forter (Deception Island) and Chile Bay (Greenwich Island). In: Holdgate, M.W., ed. - Antarctic ecology. London, Academic Press, vol. 1. p. 242-243.
- ______; ______; RETAMAL, M.A.; YÁÑEZ, A.; MOYANO, H.I. & HERMOSILLA, J.G. 1977. Quantitative studies on the soft bottom macrobenthic animal communities of shallow Antarctic bays. In: Llano, G.A., ed. - Adaptation whrthin Antarctic ecosystem. Proc. Third SCAR Symp. on Antarctic Biology, p.361-387.
- SILVA, N. & MUÑOZ, J. 1975. Descripción de las condiciones oceanográficas de la Bahía Foster, Isla Decepción. Enero de 1967. Serie cient. Inst. antart. chileno, 3(1):80-86.
Fechas de Publicación
-
Publicación en esta colección
06 Jun 2012 -
Fecha del número
1980