Variación temporal en la dieta del congrio colorado, Genypterus chilensis (Guichenot, 1881) frente al litoral de Talcahuano, Chile (36º32’S - 36º45’S)

Abstract

Variación temporal en la dieta del congrio colorado, Genypterus chilensis (Guichenot, 1881) frente al litoral de Talcahuano, Chile (36º32'S-36º45'S) Temporal variation in the diet of the red ling, Genypterus chilensis (Guichenot, 1881) in the coast off Talcahuano, Chile (36º32'S-36º45'S

Reproductive capacity of the red cusk eel Genypterus chilensis (Guichenot, 1848) in captivity

“…The results obtained from 621 average masses per season for an estimation of between 11 to 48 females, confirm that G. chilensis is a partial spawner, as Chong et al (2006) had indicated, and like G. blacodes and Gadus morhua (Paredes & Bravo, 2005;FAO, 2008). In captivity, it is important to identify and separate each female to have a specific knowledge of the volume of the mass and the number of eggs, in order to comfirm the release of more than two masses per day and the average of 13 to 56 masses/female/season.…”

“…Its geographical distribution extends from Paita in Peru to Cape Horn in southern Chile (Kong et al, 1988). It mainly inhabits in coastal bodies of water at depths that generally range between 20 to 150 m; it is a benthic species of the continental shelf usually found on rocky substrates, feeding on fish, crustaceans, and mollusks (Chong et al, 2006).…”

“…In 1994, the fishery of Genypterus chilensis generated a supply for about seven millions of consumers, however, nowadays the supply of this resource has been reduced, is barely enough for 400 thousand people (UNAB, 2012). In quantitative terms, the national landings decreased from 1,712 annual ton in 1994 to 636 ton in 2014, with a minimum of 213 ton in 2002 (Chong et al, 2006;Chong & González, 2009;SERNAPESCA, 2016). As a consequence of the supply shortages, a gradual and accelerated increase in the prices of the product has been observed, registering a growing demand, estimated in about 3,048 ton a year, which has not been met until today (Vega et al, 2012).…”

Landscape Influences on Fisher Success: Adaptation Strategies in Closed and Open Access Fisheries in Southern Chile

“…Small groups of fishers harvest congrio close to home but outside of any management areas (usually half a km from the coast or beyond). Congrio colorado live from the continental shelf up to 400 m depths; they consume mainly crustaceans as well as fish and mollusks (Chong et al 2006). The congrio colorado harvest peaks from October to February although the fish is harvested year-round.…”

Crecimiento de juveniles de congrio colorado Genypterus chilensis en condiciones de cultivo

“…Los estudios de alimentación en esta especie y otras del mismo género, revelan una dieta carnívora eurifágica de variada composición específica, con un gran número de ítems presa con claras preferencias alimenticias por organismos pelágicos tales como crustáceos de pequeño tamaño, como langostino colorado (Pleuroncodes monodon), mysidáceos y eufáusidos; entre los peces destacan la presencia de Normanichthys crockeri, Clupea (Strangomera) bentincki, Engraulis ringens, y en menor proporción calamares (Loligo gahi) (Chong et al, 2006). Los reproductores silvestres en cautiverio se alimentan con trozos de peces grasos (Trachurus murphy, Scomber japonicus peruanus, Clupea (S.) bentincki o jibias Dosidiscus gigas) (Vega et al, 2012).…”