Results 91 to 100 of about 1,275 (210)

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

open access: yesParasite, 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

Results of the jack mackerel subpopulation discrimination feasibility study [PDF]

open access: yes, 1976
A report is made on the feasibility of discriminating subpopulations of jack mackerel, Trachurus symmetricus, off of the southern California and Baja California coast. Histochemical, morphometric, and meristic characters are compared from four samples of
Gregory, Paul A., Tasto, Robert N.
core   +1 more source

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

open access: yesFishes
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   +6 more
doaj   +1 more source

Age and Growth of Jack Mackerel, Trachurus japonicus, Spawning in the Coastal Waters along Niigata

open access: yes, 1994
Growth of jack mackerel, Trachurus japonicus, in the coastal waters along Niigata in the Japan Sea, was determined from the relationship between their age and fork length, using the otoliths of the specimens collected in the spawning seasons of 1991 ...
Hasegawa, Seizo   +9 more
core  

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

open access: yesGayana, 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  

Status of Pacific Mackerel spawning population, 1976 [PDF]

open access: yes, 1976
In order to initiate a fishery for the Pacific mackerel, Scomber japonicus, it is required that the spawning biomass be determined to have reached 10,000 short tons.
Klingbeil, Richard A.
core   +1 more source

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

open access: yesGayana, 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   +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

open access: yesLatin 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   +4 more
doaj  

El Niño and Fishing Location Decisions: The Chilean Straddling Jack Mackerel Fishery

open access: yes, 2017
Fishery management of straddling stocks is conditional on available knowledge about relevant environmental shocks, such as El Niño events, affecting stock behavior. But knowledge of these issues is scant, particularly in developing world fisheries. Using
Vásquez, Felipe   +5 more
core   +1 more source

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