Age and growth rate of perch (Perca fluviatilis L.) from a special angling lake Skomielno
Jacek Rechulicz
Katedra Hydrobiologii Uniwersytetu Przyrodniczego w Lublinie ul. Akademicka 13, 20-935 LublinAbstract
During control fishing surveys carried out in the 2005 and 2006 on the special angling lake Skomielno, 56 perches were captured and their scales examined for determination of this species age and growth rate. There were performed individual measurements of fish, while its growth rate and body weight were established by the length-based methods and back-reading procedure. Perch condition was determined by calculating the Fulton coefficient. The age of perch from Skomielno fishing site ranged within I+ up to VIII+ age classes, while IV+ age group was a clear dominant (contributing 30.5% of all fish examined) as well as VI+ (22.2% of fish). The highest average perch length increment was recorded for juvenile fish of VII+ age-group (172 g) and slightly lower for V+ and VI+ ones, i.e. 91 g, 80 g, respectively. A condition coefficient calcu-lated for perches from Skomielno Lake averaged 2.3.
Keywords:
perch, Perca fluviatilis, fish age, growth rate, Skomielno LakeReferences
Epler P., Łuszczek-Trojnar E., Socha M., Drąg-Kozak E., Szczerbik P., 2005. Age and growth of the perch (Perca Fluviatilis L.) in the Solina and Rożnów dam reservoirs. Acta Sci. Pol., Piscaria, 4, (1/2), 43–50.
Girsztowtt Z., 2002. Operat rybacki zbiornika retencyjnego Skomielno. Lublin.
Heese T., 1992. Optymalizacja metody określania tempa wzrostu ryb za pomocą odczytów wstecznych. Monogr. P. Koszal., 42.
Krawczak H., 1965. Wiek i tempo wzrostu okonia (Perca fluviatilis L.) z Zalewu Wiślanego. Prace MIR, A–13, 115–130.
Skóra S., 1964. Growth and nutrition of the perch (Perca fluviatilis L.) in the reservoir of Kozłowa Góra. Acta Hydrobiol., 6, 375–387.
Starmach J., Jelonek M., 2003. Ocena stanu ichtiofauny i środowiska wodnego Zbiornika Czorsz-tyńskiego. Supl. Acta Hydrobiol., 6, 65–87.
Szypuła J., 1998. Age and growth rate of perch (Perca fluviatilis L., 1758) in the Pomeranian Bay. Fol. Univ. Agricult. Stetin. Piscaria, 24, 91–103.
Szypuła J., 1999. Age, growth and condition of perch in the Pomeranian Bay. Fol. Univ. Agricult. Stetin. Piscaria, 25, 79–87.
Szypuła J., 2002. Age, growth, and condition of pikeperch in the Odra estuary (1995–2000). Acta Sci. Pol. Piscaria, 1 (1), 61–75.
Trella K., 2003. The growth rate of six selected fish species inhabiting in the Polish part of the Vistula Lagoon. Bull. Sea Fish. Inst., 3, 61–73.
Wilgat T., 1954. Jeziora Łęczyńsko-Włodawskie. Ann. UMCS, sect. B, 8, 37–122.
Włoszczyński B., 1967. Określenie wieku u okonia (Perca fluviatilis L.). Rocz. Wyż. Szk. Roln. w Poznaniu, XXXVI, 233–239.
Zawisza J., 1953. Wzrost ryb w jeziorze Tajty. Rocz. Nauk. Roln., H–63, 221–257.
Zawisza J., Karpińska-Waluś B., 1961. Wzrost ryb w jeziorze Wdzydze. Rocz. Nauk. Rol., D–93, 187–188; 192–195.
Żuromska H., 1961. Wzrost okonia (Perca fluviatilis L.) w jeziorach okolic Węgorzewa. Rocz. Nauk. Rol., B 77, 2, 603–638.
Katedra Hydrobiologii Uniwersytetu Przyrodniczego w Lublinie ul. Akademicka 13, 20-935 Lublin
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