Despite a 2013 legal reform introducing polycentric governance and an active Marine Stewardship Council (MSC) certification, persistent overexploitation of Chilean Southern hake ( Merluccius australis ) raises fundamental questions about how institutional arrangements embedding participatory management and science‐based decision‐making actually shape management outcomes. We systematically analyzed all 54 meeting minutes of Chi...

Hermaphroditic fish species show low resilience to fishing exploitation, as alterations in sex ratio or size at sexual transition have direct implications for population fitness. The Patagonian blenny is a protandric hermaphrodite of economic importance in Chile, where basic knowledge of its life‐history traits remains scarce. Using individuals collected from the artisanal fishery, we estimated the proportion of females at len...

Species with high connectivity usually lack genetic differentiation. We tested for the presence of multiple populations of jumbo squid ( Dosidicus gigas ) on the Southeastern Pacific Ocean. Samples were collected from Ecuador to southern Chile (1.5° S–38° S). Two mitochondrial genes were sequenced (COI and ND2). Jumbo squids from all sampled locations in Ecuador, Peru, and Chile, as a whole, were characterized by low genetic d...

The stock assessment model for the Antarctic krill fishery is a population model operating on daily timesteps, which permits modeling within‐year patterns of some population dynamics. We explored the effects of including within‐year patterns in natural and fishing mortality on catch limits of krill, by incorporating temporal presence of key predator species and contemporary temporal trends of the fishing fleet. We found that i...

Coastal rocky fish species support important fishing activities, but basic information is lacking for many before catches decline. Monitoring and management of coastal rocky fish species is urgently needed in Chile, but knowledge of these species is fragmentary at best. Performance of Baited Remote Underwater Video Stations (BRUVS) for assessing rocky fish assemblages was evaluated in south‐central Chile. Seven medium‐ to larg...

The broadnose sevengill shark, Notorynchus cepedianus (Péron, 1807), is a large marine top predator in temperate coastal ecosystems. Some aspects of its life history have been determined, but its growth pattern is yet to be fully understood. The authors used a multi‐modelling approach and a sensitivity test to estimate growth parameters from young‐of‐year (YOY) length data collected off San Antonio Cape (SAC), Argentina, a cri...

The dwarf lanternshark ( Etmopterus perryi ) is the smallest known described shark, and practically no information has been available on this species since first described in the mid‐1980s. Therefore, the aim of this work is to describe, for the first time, the population structure regarding dwarf lanternshark in the Colombian Caribbean Sea. During deep‐water research surveys conducted along the Colombian Caribbean coast, 87 s...

Fitting length data in age-structured stock assessment is a common method for evaluating hard-to-age animals, such as crustaceans. Growth specification and the uncertainty in the stock recruitment relationship are key issues in length-based assessment models. We conducted sensitivity analyses to evaluate the impact of growth and recruitment parameters on the stock assessment and management variables of the yellow squat lobster...

Genypterus blacodes, in terms of its fishing history and local economic importance, is an emblematic species harvested in Chilean Patagonia (41°00’–57°00’S). Most of the current fisheries and biological knowledge of this species come from the open ocean, whereas information about the species in fjords and inner channels is fragmentary. In 2018, two research surveys targeting G. blacodes were conducted in the fjords and inner c...

Using an extensive database compiled by scientific observers aboard commercial fishing operations between 1984 and 2014, we describe the maturity and size structures of white warehou Seriolella caerulea and silver warehou Seriolella punctata from by‐catch of the trawling industrial fisheries operating in the austral zone off Chile. Macroscopic maturity stages and gonadosomatic ( I GS ) index show mature females throughout the...