Estimation of population parameters of anchovy, Engraulis encrasicolus L. 1758, at 2004-2005 fishing season in The Middle Black Sea, using length frequency analysis methods

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dc.authoridBilgin, Sabri/0000-0003-0155-8981
dc.contributor.authorBilgin, Sabri
dc.contributor.authorSamsun, Necati
dc.contributor.authorSamsun, Osman
dc.contributor.authorKalayci, Ferhat
dc.date.accessioned2025-01-27T20:34:45Z
dc.date.available2025-01-27T20:34:45Z
dc.date.issued2006
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description.abstractThis investigation was carried out to determine age, growth and mortality of 1245 anchovy, Engraulis encrasicolus L. 1758, in the Black Sea between November 2004 and May 2005. Growth parameters were estimated after determining the chorts by the Bhattacharya method. 0-3 ages groups with mean lengths of 7.90 +/- 0.05, 9.91 +/- 0.04, 11.66 +/- 0.02 and 13.86 +/- 0.03 cm were obtained. The sex ratio was 57% females and 43% males in the stock. The determined minimum and maximum length were 6.5 cm and 15.2 cm, weight were 0.98 g and 20.8 g, respectively. Condition factor, length-weight and age-length relationship for overal, female and male were CF = 0.616 +/- 0.002, CF = 0.612 +/- 0.003, CF = 0.624 +/- 0.003, W= 0.0066L(2.9669) (r=0.96), W=0.0119L(2.7266) (r=0.93), W= 0.0061L(3.0071) (r=0.96), Lt=21.17[1(-e-0.196(t+2.314))], Lt=20.42[1-e(-0.187(t+2.287))] and Lt=20.09[1-e(-0.191(t+2.419))], respectively. Length-weight and condition factors in male and female were statisticaly significant (p<0.05). Total (Z), natural (M) and fishing (F) mortality rate were Z=1.85 year(-1), M = 0.34 year(-1) and F = 1.51 year(-1), respectively. The exploitation rates (E) of 0.82 indicate that the population was being heavily exploited.
dc.identifier.endpage364
dc.identifier.issn1300-1590
dc.identifier.issn2148-3140
dc.identifier.startpage359
dc.identifier.urihttps://hdl.handle.net/20.500.12428/23448
dc.identifier.volume23
dc.identifier.wosWOS:000440355200008
dc.identifier.wosqualityN/A
dc.indekslendigikaynakWeb of Science
dc.language.isotr
dc.publisherEge Univ, Fac Fisheries
dc.relation.ispartofSu Urunleri Dergisi
dc.relation.publicationcategoryinfo:eu-repo/semantics/openAccess
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WoS_20250125
dc.subjectEngraulis encrasicolus
dc.subjectBhattacharya
dc.subjectgrowth
dc.subjectmortality rates
dc.subjectBlack Sea
dc.titleEstimation of population parameters of anchovy, Engraulis encrasicolus L. 1758, at 2004-2005 fishing season in The Middle Black Sea, using length frequency analysis methods
dc.typeArticle

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