EJPAU 2012. Kirczuk L. , Domagała J. COLOURATION OF RECIPROCAL HYBRIDS OF SALMON (SALMO SALAR L., 1758) AND SEA TROUT (SALMO TRUTTA M. TRUTTA L., 1758) AGED 0+ AND 1+ GROWN IN THE NATURAL CONDITIONS

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.

2012
Volume 15
Issue 1/volume15

Topic:

Fisheries

ELECTRONIC
JOURNAL OF
POLISH
AGRICULTURAL
UNIVERSITIES

Kirczuk L. , Domagała J. 2012. COLOURATION OF RECIPROCAL HYBRIDS OF SALMON (SALMO SALAR L., 1758) AND SEA TROUT (SALMO TRUTTA M. TRUTTA L., 1758) AGED 0+ AND 1+ GROWN IN THE NATURAL CONDITIONS, EJPAU 15(1/volume15), #02.
Available Online: http://www.ejpau.media.pl/volume15/issue1/volume15/abs-02.html

COLOURATION OF RECIPROCAL HYBRIDS OF SALMON (SALMO SALAR L., 1758) AND SEA TROUT (SALMO TRUTTA M. TRUTTA L., 1758) AGED 0+ AND 1+ GROWN IN THE NATURAL CONDITIONS

Lucyna Kirczuk¹, Józef Domagała²
¹ Department of General Zoology, University of Szczecin, Poland
² Department of General Zoology, University of Szczecin, Szczecin, Poland

ABSTRACT

The study was performed on the reciprocal hybrids of Salmo salar and Salmo trutta aged from 4 to 24 months, grown in natural conditions. As far as colouration is concerned, the ♀ trout x ♂ salmon hybrids aged 0+ and 1+ were found to resemble salmon of the same age (similar number of spots above and below the lateral line and on the opercular bones, and the spots below the lateral line reached the distance marked by the end of the dorsal fin). The salmon x ♂ trout hybrids resembled trout, but the ranges of variation of individual features were greater than in trout. The hybrids of the two types differed from the parent species in the greater ranges of variation of particular characters, irregular distribution of spots, brighter colours and irregular shapes of larval spots and other spots. Some hybrids representing the two types had untypical lighter colouration with larval spots only or with additional few little spots.

Key words: colouration; hybrids; Salmo salar x Salmo trutta; Salmo trutta x Salmo salar .

Lucyna Kirczuk
Department of General Zoology,
University of Szczecin, Poland
Felczaka 3c, 71-415 Szczecin, Poland
phone: +48 91 444 16 19
fax +48 91 444 16 23
email: lucyna.kirczuk@univ.szczecin.pl

Józef Domagała
Department of General Zoology, University of Szczecin, Szczecin, Poland
Z. Felczaka 3C
71-412 Szczecin
Poland
phone: +48 91 444 16 24
email: jozef.domagala@univ.szczecin.pl

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.