A study on the growth of horse mackerel (Trachurus mediterraneus Aleev, 1956) from Bulgarian waters of the Black Sea using length frequency analysis

Maria  Yankova

Makale detayları

A study on the growth of horse mackerel (Trachurus mediterraneus Aleev, 1956) from Bulgarian waters of the Black Sea using length frequency analysis

Yazarlar:

Maria Yankova

Yayıncı:

Türk Deniz Araştırmaları Vakfı

Dergi:

Journal of Black Sea / Mediterranean Environment 2013 Vol.19 Issue 1, pp.111-120

Belge Tipi:

Makale

Yayın Tarihi:

3/2013

Belge Dili:

İngilizce

Document ID (Org No.):

2000832540

Sıklık:

Üç Yıllık

pISSN:

1304-9550

Özet:

 

Abstract Length frequency data of horse mackerel Trachurus mediterraneus ponticus were collected from commercial net catch from Bulgarian Black Sea waters. Sampling covered the fishing season from May to December in 2012. FISAT II software program was used to analyze its length frequency distribution. The corresponding values of asymptotic length L∞ using ELEFAN I ranged from 18.11 and 19.26 cm, K values were 0.51 year-1 and 0.44 year-1 , for males and females, respectively. L∞ estimated by Bhattacharya and Ford-Walford method ranged from 18.90 and 19.11 cm for males and females, respectively. Meanwhile, L∞ by Wetherall and Bertalanffy method shows 18.24 and 18.78 cm for males and females, respectively. The instantaneous rate of total mortality (Z), natural mortality (M) and fishing mortality (F) were estimated and accordingly the exploitation ratio was determined. The Z estimated by length cohort analysis ranged from 1.42 for females and 1.62 for males. The Beverton relative yield per recruit model analysis showed that EMSY, the maximum (Y'/R), was obtained at nearly the same value for females =(0.37) and males (0.38).

Makale detayları

A study on the growth of horse mackerel (Trachurus mediterraneus Aleev, 1956) from Bulgarian waters of the Black Sea using length frequency analysis

Yazarlar: Maria Yankova

Yayıncı: Türk Deniz Araştırmaları Vakfı

Dergi: Journal of Black Sea / Mediterranean Environment 2013 Vol.19 Issue 1, pp.111-120

Belge Tipi: Makale

Yayın Tarihi: 3/2013

Belge Dili: İngilizce

Document ID (Org No.): 2000832540

Sıklık: Üç Yıllık

pISSN: 1304-9550

Sayı

Yazarlar:

Maria Yankova

Yayıncı:

Türk Deniz Araştırmaları Vakfı

Dergi:

Journal of Black Sea / Mediterranean Environment 2013 Vol.19 Issue 1, pp.111-120

Belge Tipi:

Makale

Yayın Tarihi:

3/2013

Belge Dili:

İngilizce

Document ID (Org No.):

2000832540

Sıklık:

Üç Yıllık

pISSN:

1304-9550