Analysis of the Artisanal Capture of Thunnus Spp and its Relation with Parameters Oceano-Atmoferico “Sea Surface Temperature, Waves, Winds and Currents” on the Island of San Andrés Insular Caribbean
AuthorsAlejandro Wilson Aguirre Hugo;Anthony Rojas;Erlid Arroyo Download PDF Open PDF in Browser
In the present study, the spatial and temporal distribution patterns of the Thunnus Spp species are analyzed in relation to the ocean-atmosphere atmosphere (sea surface temperature, winds and waves) during an annual period between January to December 2013. Based on available secondary parameters of bathymetric parameters, Oceanographic Parameters and Marine Meteorology Measurement System (SMPOMM), fishery census records of artisanal landings conducted in the study area and from the scientific literature of National Oceanic and Atmospheric websites Administration (NOAA) and Caribbe-an Oceanographic and Hydrographic Research Institutions (CIOH), a total of 4250 individuals were obtained, of which 3399 were of the thunnus atlanticus species and the remaining Katsuwomus pelamis (851 ind), with a total length interval Fork (Lh) of 236-868 millimeters (mm) with an average length of 520.5 ± 430.5mm, the Temporary taxation of the catch does not show a marked seasonality in the species Katsuwomus pelamis, the opposite happens for Thnnus atlanticus, which shows a marked seasonality throughout the study period between the months of March and July with 44.51% of the total landings, correspond to 25.77% of males and 18.74% females. In the annual century the evaluation of the monthly cumulative catch (Average ± Standard Error) increased significant-ly (70.91 individuals * month-1 ± 43.78), the thermal preference of the Thunnus Spp does not present a seasonality between the species and the temperature according to to the coefficient of determination of R2 = 0.0072 for Katsuwonus pelamis and R2 = 0.064 Thunnus atlánticus. the months with low swell, most representative July and March with 16.37% and 18.79% respectively, followed by May (7.57%) and February (8.46%) of the total landings, are presided over by swells of 0.26 - 0.36 mm.