Open AccessUNA APROXIMACIÓN A LA ABUNDANCIA DE LOS BATOIDEOS CAPTURADOS ARTESANALMENTE EN SANTA MARTA (COLOMBIA)
Author(s) -
Marcela Grijalba Bendeck,
Carlos Polo Silva,
P Arturo Acero
Publication year - 2016
Publication title -
boletin de investigaciones marinas y costeras/boletín de investigaciones marinas y costeras
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.177
H-Index - 14
eISSN - 2590-4671
pISSN - 0122-9761
DOI - 10.25268/bimc.invemar.2007.36.0.209
Subject(s) - fishing , abundance (ecology) , fishery , geography , relative species abundance , biology , forestry , humanities , art
Relative abundance of batoids fished in Playa Salguero and Don Jaca (Santa Marta) between March and October (2006) was estimated. Data taken at sampling periods varying between 12 and 26 days were used. 674 fishing operations with trawl net at Playa Salguero were analyzed. The general capture per effort unit (CPEU) mean in abundance was 0.46±0.07 individuals/hour and in biomass 0.09±0.02 kg/hour. The most abundant species was the endemic Urotrygon venezuelae, previously considered rare. At Don Jaca, 129 fishing operations with horizontal lines and 54 with gill nets were evaluated. CPEU at that locality was estimated in 8.53±2.04 kg/15hours for the horizontal lines and 11.00±5.90 kg/12hours for gill net; Dasyatis guttata was the most important species.