Captura, acondicionamiento y primer desove de sargo Anisotremus scapularis en la Región Tacna

Abstract

La presente investigación tuvo como objetivo desarrollar un sistema de captura para acondicionamiento de reproductores de sargo en el Centro de Acuicultura Morro Sama- Tacna. Asimismo, desarrollar una técnica de alta efectividad, medida en sobrevivencia para la captura de ejemplares de sargo, en la Región Tacna. Además de describir los resultados sobre la captura acondicionamiento y reproducción de sargo Anisotremus scapularis. Para esto, se recolectaron 15 peces silvestres, los cuales al final del período de acondicionamiento alcanzaron el estado de maduración gonadal y desovaron en forma espontánea. Los 15 ejemplares de sargos Anisotremus scapularis fueron capturados con anzuelos en las playas de Llostay (Tacna), en el año 2016. Y fueron acondicionados en un tanque de 4 metros de diámetro con un sistema abierto de agua de mar, alimentados con muy muy Emerita analoga y alimento balanceado de formulación propia. Entre los resultados se encuentra una sobrevivencia de 73.33 % (11 sargos) luego de 7 meses de acondicionamiento. El primer desove fue el 29 de octubre del 2016 a una temperatura de 18 °C.

Effect of transportation time and stocking density on seawater quality and survival of Anisotremus scapularis (Perciformes: Haemulidae)

“…Changes in seawater quality affect fish physiological response during transport time, causing stress and high mortality rates (Lim et al, 2003). However, some marine species could tolerate the higher ranges of toxic compounds without affecting their survival, such as the flathead gray mullet Mugil cephalus (Vagner, Lefrançois, Ferrari, Satta, & Domenici, 2008) 48) 17.17 ± 0.06abc 13.21 ± 1.09ab 6.43 ± 0.07a 2.35 ± 0.13d 2.84 ± 0.14e 3.12 ± 0.10g MD (72) 17.37 ± 0.12abc 11.68 ± 0.74ab 6.36 ± 0.03a 5.00 ± 0.04bc 6.05 ± 0.05bc 6.45 ± 0.05d Thus, the starting temperature to which the fish acclimatized ($16 C) was the optimal temperature used in the culture of juveniles in this species (Espinoza-Ramos et al, 2019). During transport time, the temperature increased by 2 C, also increasing the metabolism of the fish.…”

“…Thus, the starting temperature to which the fish acclimatized (~16°C) was the optimal temperature used in the culture of juveniles in this species (Espinoza‐Ramos et al, 2019). During transport time, the temperature increased by 2°C, also increasing the metabolism of the fish.…”

“…The experimental culture of A. scapularis in Peru is expanding because of the great potential, among other factors, to its high conditioning capacity, adaptability to handling, and reduced mortality in the larval stage (Espinoza-Ramos et al, 2019). However, the growth of juveniles to commercial size remains one of the main obstacles to their exploitation in the commercial sector (Dionicio-Acedo, Rosado-Salazar, Flores-Mego, Flores-Ramos, & Aguirre-Velarde, 2017).…”

“…Peruvian grunt Anisotremus scapularis (von Tschudi, 1846) is a marine fish native to the eastern South Pacific of importance in the artisanal fishery of Peru (Medicina, 2014) with potential for aquaculture (Espinoza‐Ramos, Chilli‐Layme, Pepe‐Victoriano, Pino‐Choqueapaza, & Contreras‐Mamani, 2019; Montes, Castro, Linares, Orihuela, & Carrera, 2019), and exhibits carnivorous bentophage habits forming large shoals (Angel & Ojeda, 2001; Berrios & Vargas, 2004; Ruiz & Wolff, 2011). Peruvian grunt is a coastal fish (Kluger, Scotti, Vivar, & Wolff, 2019; Kluger, Taylor, Mendo, Tam, & Wolff, 2016) found at moderate depths (Alaica, 2018) which inhabits in the intertidal and subtidal rocky area (Angel & Ojeda, 2001; Berrios & Vargas, 2004; Salazar et al, 2018).…”

“…Although A. scapularis is doing an effective transition to aquaculture (Espinoza‐Ramos et al, 2019), culture, and transport parameters have not yet been standardized. For this reason, Rosado, Dionicio, and Aguirre‐Velarde (2016) performed transport simulations of A. scapularis juveniles with the sedative tricaine MS‐222; however, further studies are still required, such as oxygen consumption, transport density, transport hours, fasting time, preparation temperature, transport and arrival, testing sedative types, and concentrations, and others, all, to determine the density and adequate time for transporting of A. scapularis juveniles.…”