Reproductive biology and population traits of tadpole codling (Salilota australis) off Chilean southern austral zone: fishery management considerations

Liu Chong Follert, Francisco Contreras M., Juan Carlos Quiroz

Submited: 2016-07-12 16:16:00 | Published: 2017-10-23 19:51:30

DOI: https://doi.org/10.3856/vol45-issue4-fulltext-14

Abstract


The spawning period and proportion of length at maturity during the period 1984-2006 were investigated in a population of tadpole codling (Salilota australis) off southern austral zone, Chile. Macroscopic aspects and gonadosomatic index variability indicate the presence of mature individuals across the year with an important spawning period between August and September. Significant differences between sexes were detected in such processes, as maturity schedule and somatic growth, particularly in females which grow larger than males. Progressively S. australis has become an important target species for the austral demersal fleet in Chile, showing both an average catch length greater than the length at 50% maturity (LM) and high female fishery availability. In relation with the unknown vulnerability to overfishing of Salilota australis, the life history parameter analysis must be a priority needs within the monitoring fishing frameworks.

Chong Follert L, Contreras M. F, Quiroz J. Reproductive biology and population traits of tadpole codling (Salilota australis) off Chilean southern austral zone: fishery management considerations. Lat. Am. J. Aquat. Res.. 2017;45(4): 787-796. Available from: doi:10.3856/vol45-issue4-fulltext-14 [Accessed 17 Oct. 2019].
Chong Follert, L., Contreras M., F., & Quiroz, J. (2017). Reproductive biology and population traits of tadpole codling (Salilota australis) off Chilean southern austral zone: fishery management considerations. Latin American Journal of Aquatic Research, 45(4), 787-796. doi:http://dx.doi.org/10.3856/vol45-issue4-fulltext-14