Results 21 to 30 of about 1,482 (164)

Estimación de la talla media de madurez sexual en Trachurus murphyi mediante parámetros del consumo relativo de oxígeno Estimation of size at first maturity for Trachurus murphyi using relative oxygen consumption

Latin American Journal of Aquatic Research, 2010
Se usa un método alternativo para estimar la talla de madurez del jurel, que considera el consumo relativo de oxígeno en función del peso corporal y la constancia que ocurre en peces teleósteos entre el consumo relativo de oxígeno en la madurez y el ...
Luis Cubillos, Carolina Alarcón
doaj   +1 more source

Localización del Esfuerzo de Pesca en la Pesquería Chileno-Transzonal del Jurel (Trachurus murphyi) [PDF]

, 2008
Este trabajo analiza condicionantes de la localización del esfuerzo pesquero de la flota chilena que opera en la pesquería transzonal del Jurel, considerando datos por viaje para el periodo 1987-2004. Desde principios de los años 1990s esta flota comenzó
Julio Peña Torres, Mabyr Valderrama
core   +1 more source

Re-evaluation of certain aspects of the EFSA Scientific Opinion of April 2010 on risk assessment of parasites in fishery products, based on new scientific data. Part 2. [PDF]

EFSA J
Abstract The objective of this opinion was to determine if any wild caught fish species, originating from specific fishing grounds and consumed in the EU/EFTA could be considered free of zoonotic parasites. In this Opinion the term ‘fishery products’ only refers to fresh finfish.
EFSA Panel on Biological Hazards (BIOHAZ), Allende A, Alvarez-Ordóñez A, Bortolaia V, Bover-Cid S, De Cesare A, Dohmen W, Guillier L, Herman L, Jacxsens L, Nauta M, Mughini-Gras L, Ottoson J, Peixe L, Perez-Rodriguez F, Skandamis P, Suffredini E, Buchmann K, Levsen A, Mattiucci S, Mladineo I, Santos MJ, Guerra B, Goudjihounde SM, Hempen M, Bolton D.   +25 more
europepmc   +2 more sources

Genetic analysis provides insights into species distribution and population structure in East Atlantic horse mackerel (Trachurus trachurus and T. capensis). [PDF]

J Fish Biol, 2020
Abstract Two sister species of horse mackerel (Trachurus trachurus and T. capensis) are described that are intensively harvested in East Atlantic waters. To address long‐standing uncertainties as to their respective geographical ranges, overlap and intraspecific population structure this study combined genetic (mitochondrial DNA and microsatellite ...
Healey AJE, Farthing MW, Nunoo FKE, Potts WM, Sauer WHH, Sauer WHH, Skujina I, King N, de Becquevort S, Shaw PW, McKeown NJ.   +10 more
europepmc   +2 more sources

Population Genetics of Chilean Jack Mackerel, Trachurus murphyi Nichols, 1920, (Pisces, Carangidae), in Waters of the South Pacific Ocean

Fishes, 2023
Estimating genetic diversity and population structure with polymorphic markers might provide information for the better management of fish that have economic importance.
Sandra Ferrada Fuentes, Ricardo Galleguillos, Victoria Herrera-Yáñez, Cristian B. Canales-Aguirre   +3 more
doaj   +1 more source

Habitat Variations of Two Commercially Valuable Species Along the Chilean Waters Under Different-Intensity El Niño Events

Frontiers in Marine Science, 2022
The synchronous response of the spatial distribution pattern of Dosidicus gigas and Trachurus murphyi habitat along the Chilean waters to different-intensity El Niño events was examined based on the habitat suitability index (HSI) models inclusive with ...
Zhiping Feng, Wei Yu, Wei Yu, Wei Yu, Wei Yu, Yang Zhang, Yunkai Li, Yunkai Li, Yunkai Li, Yunkai Li, Xinjun Chen, Xinjun Chen, Xinjun Chen, Xinjun Chen   +13 more
doaj   +1 more source

Combining potential and realized distribution modeling of telemetry data for a bycatch risk assessment. [PDF]

Ecol Evol
We applied telemetry data of a mobile and widespread species in a combined distribution modeling framework (distribution was modeled at the population‐level and individual‐level). In our northern Chile study system, the combined predictions of South American sea lions revealed unique patterns of habitat use across scales.
Frantz BH, Sepúlveda M, García-Reyes M, Vega R, Palacios DM, Bedriñana-Romano L, Hückstädt LA, Santos-Carvallo M, Davis JD, Hines E.   +9 more
europepmc   +2 more sources

Accuracy of the Kirchhoff-approximation and Kirchhoff-ray-mode fish swimbladder acoustic scattering models. [PDF]

PLoS ONE, 2013
The acoustic backscatter from pressure release prolate spheroids and a three-dimensional representation of a fish swimbladder (Chilean jack mackerel, Trachurus symmetricus murphyi) was calculated using four target strength models (Kirchhoff-approximation,
Gavin J Macaulay, Héctor Peña, Sascha M M Fässler, Geir Pedersen, Egil Ona   +4 more
doaj   +1 more source

Biocultural Calendars Across Four Ethnolinguistic Communities in Southwestern South America

GeoHealth, Volume 7, Issue 4, April 2023., 2023
Abstract Since the mid‐20th century, the so‐called Great Acceleration (sensu Steffen et al., 2007, https://doi.org/10.1579/0044-7447(2007)36[614:TAAHNO]2.0.CO;2) has amplified processes of ecosystem degradation, extinction of biological species, displacement of local peoples, losses of languages, and cultural diversity.
Ricardo Rozzi, Ricardo Álvarez, Victoria Castro, David Núñez, Jaime Ojeda, Alejandra Tauro, Francisca Massardo   +6 more
wiley   +1 more source

Population structure and demographic history of the gastropod Thaisella chocolata (Duclos, 1832) from the Southeast Pacific inferred from mitochondrial DNA analyses

Ecology and Evolution, Volume 12, Issue 9, September 2022., 2022
Here we provide a comprehensive phylogeographical study of a species distributed along the Southeast Pacific coastal region by analyzing the endemic gastropod Thaisella chocolata (Duclos, 1832). Sequencing of mitochondrial cytochrome c oxidase subunit 1 (CO1) and 16S rRNA revealed strikingly high haplotypic nucleotide and genetic diversity but a lack ...
Eliana Zelada‐Mázmela, Lorenzo E. Reyes‐Flores, Julissa J. Sánchez‐Velásquez, Claudia Ingar, Luis E. Santos‐Rojas   +4 more
wiley   +1 more source