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Long-term interactions between sardine and anchovy populations in the Eastern Adriatic (CROSBI ID 478431)

Prilog sa skupa u zborniku | sažetak izlaganja sa skupa | međunarodna recenzija

Sinovčić, Gorenka Long-term interactions between sardine and anchovy populations in the Eastern Adriatic // Symposium programme and abstracts. Sankt Peterburg: Russian Academy of Science, 1996. str. 92-93-x

Podaci o odgovornosti

Sinovčić, Gorenka

engleski

Long-term interactions between sardine and anchovy populations in the Eastern Adriatic

Sardine, Sardina pilchardus (Walb.)and anchovy,Engraulis encrasicolus (L.) are the most important and abudant species of the pelagic fish caught in the Eastern Adriatic. Studies of the possible heterogencity of sardine populations inhabiting the Adriatic showed differences in meristic, morphological and other characteristic between sardine from the northern and those from the middle Adriatic.Namely, investigations of these species confirmed the assumption that the Eastern Adriatic was inhabited by two sardine populations which differ as to the direction, time and extend of their migrations. Tested anchovy samples from various Adriatic regions point out to the homogenicity of the anchovy population in this part of the Adriatic. The annual catch fluctuations of sardine are compared with those of anchovy. The comparison points to the predominant influence of recruitment on the yield fluctuations. Fluctuations in mean sardine total lengths effect to the year class strength which rellacted in the increase in catch per unit effort, as an index of fish populations abundance. Long-term variations in catch per unit effort for the specific fish year classes in relation to primary production temperature, salinity and oxygen were analyzed for the principal fishing grounds of sardine and anchovy in the Eastern Adriatic. This correlation analysis confirmed the effects of these factors on the fish abundance.

sardine;anchovy;long-term interactions;eastern Adriatic

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Podaci o prilogu

92-93-x.

1996.

nije evidentirano

objavljeno

Podaci o matičnoj publikaciji

Symposium programme and abstracts

Sankt Peterburg: Russian Academy of Science

Podaci o skupu

31th European marine biology symposium

predavanje

09.09.1996-13.09.1996

Sankt Peterburg, Ruska Federacija

Povezanost rada

Biologija