Results 21 to 30 of about 685 (174)
In order to obtain further information on the feeding stimulant for the jack mackerel Trachurus japonicus, a series of feeding test were conducted using the purified casein basal diets flavored with the synthetic extract containing major groups stimulating those of a krill extract.
Ikeda, Itaru +3 more
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The frequency of microincrement formation in sagittae otoliths of jack mackerel Trachurus symmetricus was validated using experiments on captive fish. Adult jack mackerel were injected with a dose of 100 mg of oxytetracycline/kg of fish.
Miguel Araya +2 more
doaj +1 more source
The collapse of marine fisheries had caused a cascade of ecological, social and economic consequences. Recognizing the complex nature of the fisheries collapses is essential for understanding the impact of human activities on natural systems.
Mauricio Lima +7 more
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Causes of mortality in young jack mackerel
Field and laboratory experiments were conducted with the purpose of partitioning jack mackerel Trachurus symmetricus larval mortality into portions due to starvation and to predation. Field collections were made to determine larval condition, growth, net retention and production; laboratory experiments were conducted to determine growth and body ...
RP Hewitt, GH Theilacker, NCH Lo
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The present investigation was conducted to identify the feeding stimulants for jack mackerel Trachurus japonicus by a bioassay method using the synthetic extract, based upon analysis of jack mackerel muscle. The purified casein basal diet flavored with the synthetic extract was readily ingested by the jack mackerel, but the unflavored diet was not ...
Ikeda, Itaru +3 more
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Purpose: This research was performed with the aim of hygienic tracking for fish-borne parasitic contamination imported by Jack mackerel fish from certain parts of the world in a fish processing unit during a health inspection in the northern region of ...
Mehrdad Asgharnia +2 more
doaj
BACTERIAL FORMATION OF HISTAMINE IN JACK MACKEREL (TRACHURUS SYMMETRICUS)
Peak histamine concentrations of 0.023, 0.031 and 0.027 g histamine/ 100 g muscle and maximal bacteria concentrations of 1.75, 1.59 and 0.423 g dry cells/100 g muscle were observed in muscles of jack mackerel stored at 25, 15 and 5C, respectively. Incubated fish homogenates suggest rate and transport limitations in histamine formation in muscle.
Bermejo, A +3 more
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The blue jack mackerel Trachurus picturatus (Bowdich, 1825) specimens (N = 155) were collected during the MEDITS survey, done along the eastern side, precisely, of the Croatian fishing ground in July 2018.
Barbara Zorica +7 more
doaj +1 more source
Target-strength measurements of hake and jack mackerel [PDF]
Target-strength (TS) measurements of dispersed shoals of jack mackerel (Trachurus symmetricus murphyi Nichols), Chilean hake (Merluccius gayi Guichenot), and southern hake (Merluccius australis Hutton) were made using a 38 kHz split-beam echo-sounder. TS and length distributions were obtained from night hauls taken with midwater and bottom trawls.
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The feeding stimulant activities of nucleotides-related and tryptophan-related componunds were tested on young jack mackerel Trachurus japonicus at concentrations of 1 and 5 mmol/100g dry diet, respectively. Effective doses of inosine 5'-monophosphate (IMP) and L-tryptophan (Trp) added to the diet on feeding activity were also examined. Of 33 compounds
Ikeda, Itaru +3 more
openaire +2 more sources

