Results 81 to 90 of about 144 (95)
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Fisheries Research, 2001
Abstract The relationship between age and otolith weight was examined in the Chilean jack mackerel, Trachurus symmetricus murphyi (Nichols). The purpose was to present evidence for the relationship in order to obtain a rapid and inexpensive method of ageing individuals of T. s. murphyi .
MIGUEL Araya, Luis A Cubillos
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Abstract The relationship between age and otolith weight was examined in the Chilean jack mackerel, Trachurus symmetricus murphyi (Nichols). The purpose was to present evidence for the relationship in order to obtain a rapid and inexpensive method of ageing individuals of T. s. murphyi .
MIGUEL Araya, Luis A Cubillos
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LIPID DAMAGE DURING FROZEN STORAGE OF WHOLE JACK MACKEREL (TRACHURUS SYMMETRICUS MURPHYI)
Journal of Food Lipids, 2006ABSTRACT The damage on the lipid fraction of whole jack mackerel (Trachurus symmetricus murphyi, Carangidae) during 120 days of frozen storage was studied. The chemical composition was determined through proximate analysis. Lipid quality deterioration was evaluated by measuring free fatty acids, peroxide values, conjugated dienes and p‐anisidine values.
Aranda Bustos, Mario Antonio +2 more
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Maturation and growth of jack mackerel, Trachurus symmetricus
2021Biological knowledge of jack mackerel is not extensive,and as yet no information on maturity or growth ratehas been documented. Analysis of fish caught in theSouthern California Bight indicates a spawning seasonfrom March through October. By the end of their firstyear, most females (70%) are capable of spawning, andthe percentage increases with age ...
Wine, Vickie L., Knaggs, Eric H.
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Comparative growth performance of jack mackerels of the genus Trachurus with emphasis on T. symmetricus murphyi in Chile [PDF]
Naga, 1994 This contribution presents von Bertalanffy growth parameter estimates for species/stocks of jack mackerels of the genus Trachurus from around the world, and compares them with growth parameters for T. symmetricus murphyi caught off central-Chile (33 super(o)S-39 super(o)S).
Cubillos, L.S., Arancibia, H.F.
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Effects of Light on Schooling and Feeding of Jack Mackerel,Trachurus symmetricus
Journal of the Fisheries Research Board of Canada, 1968Schools of six jack mackerel each were photographed with infrared film at eight levels of luminance and also in darkness. Three indices were used to measure the behavior of the school from motion pictures. Two of the indices, mean distance to nearest neighbor and mean separation distance, were measures of the distances between individuals in a school ...
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2021
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.
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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.
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The jack mackerel (Trachurus symmetricus) resource of the eastern North Pacific
2021Pre-print from California Marine Research Commission, California Cooperative Oceanic Fisheries Investigations (CalCOFI) Report 13.
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Journal of the Fisheries Research Board of Canada, 1968
not available
Richard B. Grinols, Charles D. Gill
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not available
Richard B. Grinols, Charles D. Gill
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Biologia Pesquera
Age determinations íbr jack mackerel (Trachurus symmetricus murphyi Nichols, 1920) using otoliths were made for fish collecled in 1983 and 1984 from the Talcahuano fishery area, Chile. No significant differences were deiected in length increase between males and females as function of otolith size (P = 0,05). An isomeiric relaiionship between mean fork
Gonzalo Castillo, Alberto Arrizaga
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Age determinations íbr jack mackerel (Trachurus symmetricus murphyi Nichols, 1920) using otoliths were made for fish collecled in 1983 and 1984 from the Talcahuano fishery area, Chile. No significant differences were deiected in length increase between males and females as function of otolith size (P = 0,05). An isomeiric relaiionship between mean fork
Gonzalo Castillo, Alberto Arrizaga
openaire +1 more source