Results 71 to 80 of about 3,693 (163)

Validity of otolith age determinations for jack mackerel, Trachurus symmetricus, from the Southern California Bight area

open access: yes, 1974
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

Relationship between fish size and otolith length for 63 species of fishes from the Eastern North Pacific Ocean [PDF]

open access: yes, 2000
Otoliths commonly are used to determine the taxon, age, and size of fishes. This information is useful for population management, predator-prey studies, and archaeological research.
Harvey, James T.   +3 more
core  

'El Niño' Effects and Biomass Endogeneity in a Harvest Function: The Chilean Jack Mackerel Fishery [PDF]

open access: yes
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
core  

Cruise Report 67-S-4 - Albacore [PDF]

open access: yes, 1967
(PDF contains 3 pages.
Craig, William L.
core  

WHO CAN FISH WHAT AND WHERE: CHILE'S TRADEOFFS IN HIGH SEAS FISHING OF STRADDLING STOCKS [PDF]

open access: yes
Chile has not yet ratified the U.N. 1995 Agreement on straddling/ highly migratory fish stocks. This paper discusses key economic issues at stake from the viewpoint of a coastal state with important stakes in a straddling stock. The Chilean jack mackerel
Basch, Michael   +2 more
core   +1 more source

Changes in length and weight of milkfish fry preserved in formalin [PDF]

open access: yes, 1978
Fry shrank immediately after they were preserved in formalin, but from the second week onwards shrinkage was almost nil. Fry in freshwater formalin solutions shrunk less than those in seawater formalin solutions.
Castillo, Nelson, Kumagai, Shigeru
core   +1 more source

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