Age, growth and reproduction of the black scorpionfish, Scorpaena porcus (Pisces, Scorpaenidae), on the Black Sea coast of Turkey

Age, growth and reproduction of the black scorpionfish, Scorpaena porcus (Pisces, Scorpaenidae),... Summary Age, growth and reproduction of the black scorpionfish, Scorpaena porcus were studied in specimens from the coast of the Sinop Peninsula (Black Sea) between March 2002 and April 2003 in order to characterize these population parameters in comparison to specimens from populations of nearby regions. A total of 1086 specimens was captured by beam trawl at the depths between 0 and 30 m. The total number of females (510) was significantly higher than that of males (373). Total length of males and females ranged between 5.7 and 23.6 cm, and 4.9 and 31.7 cm, respectively. The length–weight relationship showed a positive allometric growth. Females grew faster and reached a larger size at age than males (L∞ = 111.9 cm, K = 0.035 year−1, ϕ′ = 2.64 for females, and L∞ = 74.6 cm, K = 0.054 year−1, ϕ′ = 2.49 for males). The age range estimated was up to 8 years for females and 5 years for males. Reproduction likely occurs between June and September. Sex ratio varied greatly with season, perhaps indicating different seasonal migratory patterns in adults of different sex. An inverse correlation between gonadosomatic index (GSI) and hepatosomatic index (HSI) was evident during the reproduction seasons. The mean size at first sexual maturity was 17.5 cm TL for females, and 16.7 cm TL for males. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Applied Ichthyology Wiley

Age, growth and reproduction of the black scorpionfish, Scorpaena porcus (Pisces, Scorpaenidae), on the Black Sea coast of Turkey

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Publisher
Wiley Subscription Services, Inc., A Wiley Company
Copyright
© 2008 The Authors. Journal compilation © 2008 Blackwell Verlag, Berlin
ISSN
0175-8659
eISSN
1439-0426
D.O.I.
10.1111/j.1439-0426.2008.01157.x
Publisher site
See Article on Publisher Site

Abstract

Summary Age, growth and reproduction of the black scorpionfish, Scorpaena porcus were studied in specimens from the coast of the Sinop Peninsula (Black Sea) between March 2002 and April 2003 in order to characterize these population parameters in comparison to specimens from populations of nearby regions. A total of 1086 specimens was captured by beam trawl at the depths between 0 and 30 m. The total number of females (510) was significantly higher than that of males (373). Total length of males and females ranged between 5.7 and 23.6 cm, and 4.9 and 31.7 cm, respectively. The length–weight relationship showed a positive allometric growth. Females grew faster and reached a larger size at age than males (L∞ = 111.9 cm, K = 0.035 year−1, ϕ′ = 2.64 for females, and L∞ = 74.6 cm, K = 0.054 year−1, ϕ′ = 2.49 for males). The age range estimated was up to 8 years for females and 5 years for males. Reproduction likely occurs between June and September. Sex ratio varied greatly with season, perhaps indicating different seasonal migratory patterns in adults of different sex. An inverse correlation between gonadosomatic index (GSI) and hepatosomatic index (HSI) was evident during the reproduction seasons. The mean size at first sexual maturity was 17.5 cm TL for females, and 16.7 cm TL for males.

Journal

Journal of Applied IchthyologyWiley

Published: Feb 1, 2009

References

  • Food partitioning among scorpaenid fishes in Mediterranean seagrass beds
    Harmelin‐Vivien, Harmelin‐Vivien; Kaim‐Malka, Kaim‐Malka; Ledoyer, Ledoyer; Jacob‐Abraham, Jacob‐Abraham

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