Results 71 to 80 of about 685 (174)

An Automated Method Inspired by Taxonomic Classification for Distinguishing Chilean Pelagic Fish Species

IEEE Access
In this study, we designed an automated classification method, inspired by human taxonomic principles, to distinguish visually similar species of pelagic fish in images through the integration of morphological feature analysis with a hierarchical ...
Vincenzo Caro Fuentes, Danny Luarte, Ariel Torres, Jorge E. Pezoa, Sebastian E. Godoy, Sergio N. Torres, Mauricio A. Urbina   +6 more
doaj   +1 more source

Trophic interactions in northern Chile upwelling ecosystem, year 1997

Latin American Journal of Aquatic Research, 2014
A food web model is constructed to describe predator-prey interactions, community structure and trophic flows in northern Chile upwelling ecosystem (18°20'S, 24°S), for the year 1997. The model is built using the Ecopath with Ecosim software version 6.4,
Mónica E Barros, Sergio Neira, Hugo Arancibia   +2 more
doaj   +1 more source

Rhadinorhynchus oligospinosus n. sp. (Acanthocephala, Rhadinorhynchidae) from mackerels in the Pacific Ocean off Peru and related rhadinorhynchids in the Pacific, with notes on metal analysis

Parasite, 2017
Specimens of a new species of Rhadinorhynchus Lühe, 1911 are described from the chub mackerel Scomber japonicus (Scombridae) and the Chilean Jack mackerel Trachurus murphyi (Carangidae) (possibly a subspecies of Trachurus symmetricus) from the Pacific ...
Amin Omar M., Heckmann Richard A.
doaj   +1 more source

Catch Losses and Reduction of Bycatch for Jellyfish Using Marine Mammal Bycatch Reduction Devices in Midwater Trawl Gear

Fishes
The National Institute of Fisheries Science in Korea is developing marine mammal bycatch reduction devices (BRDs) for midwater trawl gear. In this study, we tested two BRD-type guide nets (inclined net panel) with 30° and 45° tilt angles to prevent ...
Jung-Mo Jung, Hyun-Young Kim, Bong-Jin Cha, Sung-Jae Kim, Tae-Suk Kim, Gyeong-Cheol Hyun, Kyu-Suk Choi   +6 more
doaj   +1 more source

Age of Jack mackerel Trachrus murphyi (Carangidae) using daily growth rings in sagittae otoliths

Gayana, 2019
Growth of Jack mackerel (Trachurus murphyi) was estimated using daily growth rings in fish collected in central-south Chile from 2004 to 2011. The von Bertalanffy growth curve at length for both sexes (n=210 individuals) is FL = 75*[1-e-0.16(t+0 ...
Lilian Cisterna, Hugo Arancibia
doaj  

ESTANDARIZACION DE LAS TASAS DE CAPTURA DE RECURSOS PELAGICOS DE LA ZONA NORTE DE CHILE STANDARDIZATION OF CATCH RATES OF THE PELAGIC FISH RESOURCES IN THE NORTHERN CHILE

Gayana, 2005
Se usó el modelo lineal generalizado (MLG) para estandarizar el índice de abundancia relativa, captura por unidad de esfuerzo (CPUE) de anchoveta (Engraulis ringens), sardina (Sardinops sagax) y jurel (Trachurus murphyi), en la zona norte de Chile (18º21-
Gabriela Böhm, Eleuterio Yáñez, Fernando Espíndola   +2 more
doaj  

Trends in spatio-temporal distribution of Peruvian anchovy and other small pelagic fish biomass from 1966-2009 Tendencias espacio-temporales en la distribución de la biomasa de anchoveta peruana y de otros peces pelágicos pequenos entre 1966 y 2009

Latin American Journal of Aquatic Research, 2012
Changes in abundance and distribution of anchovy and other species of pelagic fish of the Northern Humboldt Current System (NHCS) are driven by environmental forcing variations in different time and spatial scales between the coastal 'cold' ecosystem and
Mariano Gutiérrez, Ramiro Castillo, Marceliano Segura, Salvador Peraltilla, Miguel Flores   +4 more
doaj  

Replacement Effect of Fish Meal by Plant Protein Sources in Olive Flounder (Paralichthys olivaceus) Feeds with an Addition of Jack Mackerel Meal on Growth, Feed Availability, and Biochemical Composition. [PDF]

Aquac Nutr, 2023
Back SI, Jeong HS, Cho SH.
europepmc   +1 more source

Individual growth in Jack mackerel (Trachurus murphyi) of the Southeastern Pacific Ocean using sagitta otolith weight, daily rings, and annual rings

Gayana, 2021
We estimated the growth of Jack mackerel (Trachurus murphyi) using increments of daily growth, otolith weight and annual ring reading in sagittal otoliths.
Hugo Arancibia, Lilian Cisterna, Aquiles Sepúlveda   +2 more
doaj  

Reproduction of the Blue Jack Mackerel, Trachurus picturatus, in Western Portugal: Microscopic Gonad Analysis Reveals Indeterminate Fecundity and Skipped Spawning Patterns. [PDF]

Zool Stud, 2022
Neves A, Sequeira V, Vieira AR, Silva E, Silva F, A B, Duarte AM, Mendes S, A B, Ganhão R, Assis C, Rebelo R, Magalhães F, Gil MM, Gordo LS.   +14 more
europepmc   +1 more source