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International Journal of Marine Science 2014, Vol.4, No.20: 183-193
http://ijms.sophiapublisher.com
184
and another less raining period from November to
April. Mean temperature is about 24.8
℃
, while mean
annual precipitations are about 1 278.9 mm (
http://
www.met.inf.cu
).
Figure 1 Geographical localization of Guacanayabo´s Gulf and sampling sites.
Guacanayabo´s Gulf is a very important place from
the social and economic point of view, mainly due to
the different kind of fisheries that take account there.
That is why is has been studied and characterized by
different sea and/or oceanographic institutions. Many
articles exist that describe oceanographic and
biological characteristics as well as interrelations
between hydro meteorological variables and marine
species (Emilsson and Tápanes, 1971;Lluis-Riera,
1977; Pérez et al., 2003; Sosa, 2003; Fernández-Vila,
2006; Garcés and Betanzos, 2010; Giménez et al.
,
2012).
Pink shrimp as fisheries resource, takes the second
place in Cuban fisheries industry exportations and
Guacanayabo gulf it was used to obtain about the 35%
of total catches (Sosa, 2003). Those capture volumes
has been decreased to the 5% at nowadays capture
(600 tons). Plausible causes of the decline are related
to the increased capacity of water reservoirs in the
tributaries that flow into the Gulf, giving as
consequence a decrease in nutrients and mud (Garcés
and Betanzos, 2010), change in habitat, food potential
reduction as well as over fisheries and recruitment
failure (Font, 2000; Sosa, 2000 y 2003).
For those reasons, hydrological samples were taken in
Guacanayabo´s Gulf in different seasons in 2008 and
2009, to get actualization of seasonal and spatial
variability of aquatic media, because those factors
(water temperature, salinity, dissolved oxygen, and
chemical oxygen demand (COD)) could influence the
abundance levels of the species. Taking into a
consideration that local hydrological and hydro-