Results 111 to 120 of about 17,173 (216)

Status of the Pacific Mackerel resource during 1996 management recommendations for the fishery [PDF]

open access: yes, 1997
The California fishery for Pacific mackerel (Scomber japonicus) has declined precipitously since 1990. Statewide landings during 1995 continued the downward trend, and totaled only 9,185 short tons.
Barnes, J. Thomas   +2 more
core  

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

open access: yesGayana, 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   +2 more
doaj  

Downward Adjustments in a Cyclical Environment: The Case of Chilean Pelagic Fisheries [PDF]

open access: yes
Often the scale of production of many industrial fisheries in the world shows rigidity vis à vis declines in fish abundance, which on occasions has generated fishing collapse.
Julio Peña-Torres   +2 more
core   +3 more sources

Jack-Mackerel stock assessment simulation

open access: yes, 2009
IMARES has been tasked to perform an ICA assessment on a simulated Jack Mackerel dataset. This in order to provide management advice within the SPRFMO framework. The results of the assessments are only briefly discussed, as the Assessment Simulation Task Team mainly focused on agreeing on the underlying simulated dataset and assessment settings during ...
openaire   +1 more source

Cruise 4 of the M/V N.B. Scofield for 1957. [PDF]

open access: yes, 1957
(PDF contains 3 pages.

core  

Numerical Study on Evaluation of Environmental DNA Approach for Estimating Fish Abundance and Distribution in Semi-Enclosed Bay

open access: yesJournal of Marine Science and Engineering
Despite efforts to use environmental DNA (eDNA), accurately quantifying fish populations remains a challenge. A recent eDNA approach provided reliable estimates of coastal fish population abundance, but it was not as effective for assessing spatial ...
Seongsik Park   +2 more
doaj   +1 more source

Spatial and temporal variation in the diet of the California sea lion (Zalophus californianus) in the Gulf of California, Mexico [PDF]

open access: yes, 2004
Between June 1995 and May 1996 seven rookeries in the Gulf of California were visited four times in order to collect scat samples for studying spatial and seasonal variability California sea lion prey.
Aurioles-Gamboa, David   +1 more
core  

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

open access: yesLatin 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  

Analysis of the Jack mackerel Trachurus murphyifishery in Peru

open access: yesRevista Peruana de Biología, 2013
La presencia del jurel Trachurus murphyi ha sido registrado en los desembarques de la pesca artesanal en Perú desde 1907. A partir del año 2000, las capturas de T. murphyise ubicaron en el tercer lugar después de la anchoveta Engraulis ringensy el calamar gigante Dosidicus gigas. Las capturas de T.
Ñiquen, Miguel   +3 more
openaire   +1 more source

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