Neja and Kompowski, 2001



Citation


Neja, Z. and Kompowski, A. (2001) Some data on the biology of common bream, Abramis brama (L., 1758), from the miedzyodrze waters. Acta Ichthyologica et Piscatoria [ACTA ICHTHYOL. PISC.], pp. 3-26

Associated characteristics


Species Development state Trait Primary Data Secondary Data
Abramis brama Female Maximum GSI value In spring, the ovaries accouned for 0.2-24.7% of the total body weight 12.45 percent
Abramis brama Male Maximum GSI value In spring, the testes accounted for up to 3.7% 3.7 percent
Abramis brama Female Age at sexual maturity Other studies: 50% of the males matured having attained TL = 35.5 cm (SL= 27.7 cm) at the age of 7 years. […] Bream inhabiting the Rybinsk reservoir on the Volga to be sexually mature when older than 7 years, when 9.3% of the individuals were mature, at the average length of 27.4 cm. At the age of 9 years, almost half (48.1%) of all the individuals were mature, at the average length of 32.0 cm. All the bream (100%) were mature as last as in their 13th year of life, having attained a mean length of 38.4 cm 9.0 years
Abramis brama Female Length at sexual maturity All the individuals measuring up to 12 cm were immature (Maier gonad maturity scale stage I). The smallest length of mature bream (Maier scale stage II) was 13 cm. At the length of 20 cm, 50% of the population were mature. Thus that length should be regarded as the length at first maturity. All the individuals measuring 30 cm and more were mature. [...] Other studies, on average 26.0-33.5 cm in females 29.75 cm
Abramis brama Male Length at sexual maturity All the individuals measuring up to 12 cm were immature (Maier gonad maturity scale stage I). The smallest length of mature bream (Maier scale stage II) was 13 cm. At the length of 20 cm, 50% of the population were mature. Thus that length should be regarded as the length at first maturity. All the individuals measuring 30 cm and more were mature. 12.0 cm
Abramis brama Female Age at sexual maturity Other studies: 50% of the females matured having attained TL = 39 cm (SL= 30.5 cm) at the age of 8 years. […] Bream inhabiting the Rybinsk reservoir on the Volga to be sexually mature when older than 7 years, when 9.3% of the individuals were mature, at the average length of 27.4 cm. At the age of 9 years, almost half (48.1%) of all the individuals were mature, at the average length of 32.0 cm. All the bream (100%) were mature as last as in their 13th year of life, having attained a mean length of 38.4 cm 8.0 year