CADIC   02618
CENTRO AUSTRAL DE INVESTIGACIONES CIENTIFICAS
Unidad Ejecutora - UE
capítulos de libros
Título:
Fish ecology, conservation biology, and new insights from the archaeological evidence in the Beagle Channel (Tierra del Fuego, Argentina).
Autor/es:
ZANGRANDO, A. F.; MARTINOLI, M.P.
Libro:
Fish Ecology
Editorial:
Nova Science Publishers
Referencias:
Lugar: Nueva York; Año: 2010;
Resumen:
This chapter analyses the taxonomic representations of marine fish from eight archaeological assemblages of the Beagle Channel. This study provides information about fish taxonomic distribution and ecological conditions in this region since 6400 to 500 radiocarbon years BP. Species corresponding to Nototheniidae family are represented throughout the archaeological sequence, in particular Paranotothenia magellanica and species attributable to Patagonotothen gender. Other fish of intertidal or shallow waters, as Austrolycus depressiceps, Cottoperca gobio, Sprattus fueguensis, etc., are also presented in the archaeological record. Among deep-sea species, Macruronus magellanicus is widely represented in the archaeofaunal assemblages. Nevertheless, the data also indicate that many species of deep waters (Merluccius sp. and Thyrsites atun) frequently consumed by hunter-gatherers are not common today in the marine ecosystem of the Beagle Channel. Comparisons of these data with modern ecological surveys indicate that both environmental stability at coastal waters and changes of the distributions of deep-sea species have occurred. This last result provides a new insight regarding the influence of modern human activities and the scope of overfishing in the uttermost part of the world.