Results 131 to 140 of about 928 (159)
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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 +4 more
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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 +4 more
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Communication of velocity changes in jack mackerel (Trachurus symmetricus) schools
Animal Behaviour, 1969Abstract The latency and the velocity of the response of jack mackerel, T. symmetricus , to a velocity change by a schooling companion was studied in the laboratory. Fish were tested in groups of two and six fish each. One fish in each group was given an electric shock; the responses of the other fish in the group to the increase in speed by the ...
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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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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
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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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The Journal of Parasitology, 2000
The composition of the metazoan parasite communities within 2 fishing zones along the Chilean coast were compared to determine the population structure of the jack mackerel Trachurus symmetricus murphyi (Nichols) in these 2 geographical locations.
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The composition of the metazoan parasite communities within 2 fishing zones along the Chilean coast were compared to determine the population structure of the jack mackerel Trachurus symmetricus murphyi (Nichols) in these 2 geographical locations.
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Biologia Pesquera
Se indagó si los isópodos Ceratothoa spp. Dana 1853, que habitan en la cavidad bucal y cámara branquial del jurel Trachurus symmetricus murphyi (Nichols, 1920), podrían servir como indicadores poblacionaies de su hospedador. Para esto, entre enero y octubre de 1990 se obtuvo 801 ejemplares de Ceratothoa spp.
Marcela Aldana +2 more
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Se indagó si los isópodos Ceratothoa spp. Dana 1853, que habitan en la cavidad bucal y cámara branquial del jurel Trachurus symmetricus murphyi (Nichols, 1920), podrían servir como indicadores poblacionaies de su hospedador. Para esto, entre enero y octubre de 1990 se obtuvo 801 ejemplares de Ceratothoa spp.
Marcela Aldana +2 more
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Suspected microplastics in Atlantic horse mackerel fish (Trachurus trachurus) captured in Portugal
Marine Pollution Bulletin, 2022Joana C Prata +2 more
exaly

