The purpose of this study was to ascertain the validity of agedeterminations using otoliths of jack mackerel. The study consisted of two parts: (1)otoliths were examined for seasonal changes in the hyaline and opaque zones at the edges of otoliths and (2)a dominant year class was followed through consecutive years noting marginal zone changes. (13pp.)
Knaggs, Eric H., Sunada, John S.
openaire +1 more source
The Red Squat Lobster Pleuroncodes monodon in the Humboldt Current System: From Their Ecology to Commercial Attributes as Marine Bioresource. [PDF]
Yapur-Pancorvo AL +4 more
europepmc +1 more source
'El Niño' Effects and Biomass Endogeneity in a Harvest Function: The Chilean Jack Mackerel Fishery [PDF]
The main goal of this paper consists in estimating the input parameters of an annual harvest function for the Chilean jack mackerel stock; particularly, the effects of biomass on catch.
Claudio Agostini +2 more
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Status of Pacific Mackerel spawning population, 1976 [PDF]
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.
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Southern California independent sport fishing survey Quarterly Report no. 9 [PDF]
During the July 1 - September 30, 1977 quarter, 29 launch ramps, hoists, and boat rental locations were sampled 380 times. During the sample days 25,256 anglers and 1,445 divers were interviewed.
Wine, Vickie L.
core +2 more sources
Regularizing priors for Bayesian VAR applications to large ecological datasets. [PDF]
Ward EJ, Marshall K, Scheuerell MD.
europepmc +1 more source
A report of biological observations at Oceanside #1 and #2 artificial reefs, Carlsbad artificial reef, Pacific Beach artificial reef, and Mission Bay Park artificial reef [PDF]
(Document pdf contains 22 ...
Bedford, Dennis W.
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Effect of Rigor Stage and Pressurisation on Lipid Damage, Total Volatile Amine Formation and Autolysis Development in Palm Ruff Stored on Ice. [PDF]
Malga JM +5 more
europepmc +1 more source
Effects of the Santa Barbara, Calif., Oil Spill on the Apparent Abundance of Pelagic Fishery Resources [PDF]
Many studies have been made of the effects of oil on marine invertebrates, plants (marine algae and phytoplankton), and vertebrates such as seabirds and marine mammals.
Squire, Jr. , James L.
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