Electronic Journal of Polish Agricultural Universities (EJPAU) founded by all Polish Agriculture Universities presents original papers and review articles relevant to all aspects of agricultural
sciences. It is target for persons working both in science and industry,regulatory agencies or teaching in agricultural sector. Covered by IFIS
Publishing (Food Science and Technology Abstracts), ELSEVIER Science - Food Science and Technology Program, CAS USA (Chemical Abstracts), CABI Publishing
UK and ALPSP (Association of Learned and Professional Society Publisher - full membership). Presented in the Master List of Thomson ISI.
2000
Volume 3
Issue 2
Volume 3
Issue 2
Topic:
Fisheries
ELECTRONIC
JOURNAL OF
POLISH
AGRICULTURAL
UNIVERSITIES
JOURNAL OF
POLISH
AGRICULTURAL
UNIVERSITIES
Copyright © Wydawnictwo Uniwersytetu Przyrodniczego we Wrocławiu, ISSN 1505-0297
Szypuła J. 2000. AGE, GROWTH, AND CONDITION OF PERCH IN THE SZCZECIN LAGOON, EJPAU 3(2), #02.
Available Online: http://www.ejpau.media.pl/volume3/issue2/fisheries/abs-02.html
Available Online: http://www.ejpau.media.pl/volume3/issue2/fisheries/abs-02.html
AGE, GROWTH, AND CONDITION OF PERCH IN THE SZCZECIN LAGOON
Jerzy Szypuła
ABSTRACT
The study involved analysis, performed with standard methods, of length and weight growth of 202 perch individuals caught in November 1999 from the Szczecin Lagoon. The verge coefficient was factored in both when determining the age distribution and when analysing length and weight growth by calculating mean values in age groups (when Kr > 0.50, the number of annual rings was increased by 1).
Key words: perch, growth, mathematical growth models, condition coefficient..