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Evidence of a relationship between age and otolith weight in the Chilean jack mackerel, Trachurus symmetricus murphyi (Nichols)

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
openaire   +1 more source

Communication of velocity changes in jack mackerel (Trachurus symmetricus) schools

Animal Behaviour, 1969
Abstract 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 ...
openaire   +1 more source

Effects of Light on Schooling and Feeding of Jack Mackerel,Trachurus symmetricus

Journal of the Fisheries Research Board of Canada, 1968
Schools 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 ...
openaire   +1 more source

Edad y crecimiento del Jurel Trachurus symmetricus murphyi (NICHOLS, 1920) en aguas de Chile central.

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
openaire   +1 more source

Geographical Variations in the Jack Mackerel Trachurus symmetricus murphyi Populations in the Southeastern Pacific Ocean as Evidenced from the Associated Parasite Communities

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.
openaire   +2 more sources

Isópodos parásitos como indicadores poblacionales del jurel Trachurus symmetricus murphyi (NICHOLS, 1920) (PISCES: CARANGIDAE) frente a las costas de Chile.

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
openaire   +1 more source

Horse mackerel (Trachurus trachurus) fillets biopreservation by using gallic acid and chitosan coatings

Food Control, 2021
Pedo Guerrero   +2 more
exaly  

Suspected microplastics in Atlantic horse mackerel fish (Trachurus trachurus) captured in Portugal

Marine Pollution Bulletin, 2022
Joana C Prata   +2 more
exaly  

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