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A Study of the biology of pumpkinseed ( Lepomis gibbosus (L.)) in Lake Kerkini (Greece)
Author(s) -
Neophitou C.,
Giapis A. J.
Publication year - 1994
Publication title -
journal of applied ichthyology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.392
H-Index - 62
eISSN - 1439-0426
pISSN - 0175-8659
DOI - 10.1111/j.1439-0426.1994.tb00151.x
Subject(s) - lepomis , fecundity , biology , reproduction , fish measurement , range (aeronautics) , zoology , ecology , fish <actinopterygii> , fishery , population , demography , sociology , composite material , materials science
Summary The lifecycle of pumpkinseed, ( Lepomis gibbosus (L.)), was studied to obtain information on age, growth and reproduction. Using scales, back‐calculation of length indicates a fast growth rate during the first 2 years of life (69.8–83.4 mm, respectively) after which it decreases. The length: weight relationship of a sample of 600 pumpkinseed specimens can be described by the equation W= 12.078 10 ‐6 . FL 3.131 for both sexes. The average condition factor (K) of all pumpkinseed was 1.40, with a range of 1.39 to 1.41. The studied species were sexuall mature at age 1 + The relationship between fecundity F) and fork length (FL) was F = 0.02438 FL 3.08 . The mean absolute fecundity was 7169 eggs, ranging from 1122 to 12 293 eggs; mean diameter = 0.8 mm. Spawning occurred from the second half of June until the end of July at water temperature 22–25°C.