Hospital, Costa Rica
Entre 2016–2020 se caracterizaron las especies y tamaños de las tortugas marinas presentes en el Mosaico de Conservación Bahía Málaga, Valle del Cauca por medio de monitoreo acuático y la entrega voluntaria por parte de los pescadores del área. El registro de individuos fue determinado mediante monitoreo acuático, que se dividió en tres fases: muestreo exploratorio, muestreo continuado, muestreo estandarizado, además de entregas voluntarias por los pescadores en sus faenas de pesca. Se emplearon 107 horas de esfuerzo para un total de 51 individuos de tortuga carey (Eretmochelys imbricata) y negra (Chelonia mydas) registradas. Estos resultados contribuyen como línea base para el conocimiento de las tortugas marinas como estrategia efectiva para la investigación y conservación de bahía Málaga.
The species and sizes of sea turtles present in the conservation mosaic of bahía Málaga are characterized during in water monitoring and voluntary surrender by fishermen in the area between 2016-2020. The registration of individuals was determined by in water monitoring, which was divided into three phases: exploratory sampling, continuous / adapted sampling, standardized sampling and voluntary deliveries by fishermen in their fishing operations. During the five years of monitoring, 107 hours of effort were expended. A total of 48 sea turtles among hawksbill (n = 34), black (n = 13) and olive ridley (n = 1) were recorded in the conservation mosaic of bahía Málaga. In the water monitoring, a total of eight turtles were captured, seven hawksbill turtles and one black turtle. A total of 41 sea turtles were delivered by fishermen among hawksbill (n = 28), black (n = 12) and olive ridley (n = 1). 92.7% of the turtles were caught with a monofilament mesh, while 4.9% were caught with a hooked hand line and one juvenile hawksbill turtle was caught by hand by a fisherman. 48 sea turtles were captured in the La Plata archipelago, between hawksbill (n = 34) and black (n = 13) turtles, the olive ridley turtle was captured outside the archipelago, in the Choncho sector. For the hawksbill turtle, 33 of the 34 turtles were juveniles and one was an adult female, the LCCmin size was (mean ± SD) 45.6 ± 12.9 cm (range 17.4 - 90.0; n = 29) , the LCCn-s was 46.2 ± 13.5 cm (range 17.6 - 90.5; n = 22), the ACC was 39.0 ± 9.3 cm (range 15.0 - 73.6; n = 34) and the weight was (mean ± SD) 11.2 ± 11.4 kg (range 3.8 - 69.0; n = 34). All the black turtles (n = 13) were juveniles and sub-adults, their LCCmin size was 65.7 ± 16.2 cm (range 36.2 - 90.3; n = 9) and the LCCn-s was 67.2 ± 14.7 cm (range 36.4 - 90.6; n = 11), the ACC was 62.8 ± 13.1 cm (range 36.4 - 90.6; n = 13) and the weight was (average ± SD) 35.8 ± 21.2 kg (range 3.8 - 69.0; n = 13). The olive ridley turtle individual was an adult male with CCLn-s and ACC of 63.5 cm and 68.5 cm respectively and its weight was 26.4 kg. Two of the 34 hawksbill turtles were found and reported dead by fishermen in their nets. One of the black turtles was captured and taken to Buenaventura port for its commercialization and the olive ridley turtle a few weeks after its release, it was sacrificed for consumption.
Our results contribute as a baseline for the knowledge of sea turtles from the inter-institutional and community effort, as an effective strategy for research and conservation in the conservation mosaic of bahía Málaga.
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