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.

Copyright © Wydawnictwo Akademii Rolniczej we Wroclawiu, ISSN 1505-0297

Więcaszek B. , Antoszek J. , Antoszek A. 2009. COMPARATIVE STUDY OF BIOMETRIC CHARACTERS OF THE “GOLDEN” COD AND A SAMPLE OF COD OF TYPICAL PIGMENTATION (Gadus morhua morhua L.) CAPTURED IN THE SVÅLBARD BANK, EJPAU 12(2), #05.
Available Online: http://www.ejpau.media.pl/volume12/issue2/abs-05.html

ABSTRACT

A single specimen of the northeast Atlantic cod Gadus morhua morhua L.,
of unusual golden tint, was captured in the eastern part of Svålbard Bank
area. At the same time, a sample of 50 individuals of typical colouration was
collected from the same area. The main objectives of this study were to present a detailed morphometric
characteristics of golden specimen as well to compare data obtained with the
morphometrics of the sample of typically pigmented cod collected from this fishing
ground. The morphometric characteristics involved metric characters of the body
and head, meristic features as well as metric characters of cod neurocranium.
In addition examination of the stomach contents, condition of cod and the one-dimensional
sodium dodecyl sulphate polyacrylamide gel electrophoresis (SDS-PAGE) for separating
myofibrillar proteins by molecular weight were performed in the whole sample
as well. Morphometric analysis revealed some differences between "gold" morphotype
and typically coloured specimens of Atlantic cod from the same location of sampling.
Moreover, differences in the diet composition were found as well. No differences
were found in the comparative electrophoretic study in the composition of myofibrillar
proteins in white muscles. Meristic characters of cod studied can be presented by the following formula: D₁ 13-15, D₂ 17-22, D₃ 16-21, D 47-58, A₁ 17-23, A₂ 16-20, A 35-43, P 18-25, C 54-58, V 6, r.br.7, vt.
49-53, vt_c 30-34, vt_a 18-20, sp.br._1I 22-27, sp.br._1II 17-19, sp.br._2I 16-20, sp.br _2II 14-17.
Values of the meristic characters of the golden specimen were fit within the
ranges obtained. The mean value of condition factor K amounted to 1.01 in the sample of typically coloured cod, whereas for
golden cod 1.07.

Key words: golden cod, Gadus morhua, metric characters, meristics, neurocranium, electrophoresis, diet, condition factor.

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Beata Więcaszek
Department of Fish Systematics,
West Pomeranian University of Technology, Szczecin, Poland
Kazimierza Królewicza 4, 71-550 Szczecin, Poland
email: bwiecaszek@zut.edu.pl

Jolanta Antoszek
Department of Immunology, Microbiology and Physiological Chemistry,
West Pomeranian University of Technology, Szczecin, Poland
2, Judyma st., 71-466 Szczecin, Poland

Artur Antoszek
Department of Fish Systematics,
West Pomeranian University of Technology, Szczecin, Poland
Kazimierza Królewicza 4, 71-550 Szczecin, Poland

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Responses to this article, comments are invited and should be submitted within three months of the publication of the article. If accepted for publication, they will be published in the chapter headed 'Discussions' and hyperlinked to the article.

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