Osteological characteristics of selected cranial bones of juvenile reciprocal hybrids of Atlantic salmon, Salmo salar L., and sea trout, Salmo trutta L.

• Autorzy: Kirczuk L. , Domagala J.

Warianty tytułu

PL

Charakterystyka osteologiczna wybranych kości czaszki juwenilnych, obustronnych hybrydów łososia Salmo salar L. i troci Salmo trutta L.

• Języki publikacji: EN

Abstrakty

EN

Four cranial bones (supraethmoid, glossohyal, premaxilla, vomer) of nine-month-old reciprocal hybrids of Salmo salar and Salmo trutta and the arrangement of the opercular bones in reciprocal hybrids aged from 4 to 24 months were analyzed. The supraethmoid bone in the majority of the hybrids studied was similar to that of salmon. In some hybrids, an atypical additional process was found on the lower part of the supraethmoid bone. The large process of the premaxilla bone had a short base in the two groups of hybrids as in salmon, and it was low as in trout. The shape of the vomer plate was intermediate between a triangle (as in trout) and a pentagon (as in salmon) in the majority of salmon x trout hybrids and almost half of the trout x salmon hybrids. The glossohyal in some hybrids had an uneven number of teeth in each row, and these rows of teeth were uneven.

PL

Słowa kluczowe

EN

osteology; cranial bone; fish; juvenile; reciprocal hybrid; hybrid; Atlantic salmon; Salmo salar; sea trout; Salmo trutta

• Wydawca: -
• Czasopismo: Archives of Polish Fisheries
• Rocznik: 2011
• Tom: 19
• Numer: 1
• Opis fizyczny: p.13-22,fig.,ref.

Twórcy

autor

Kirczuk L.

• Department of General Zoology, University of Szczecin, Felczaka 3c, 71-412 Szczecin, Poland

autor

Domagala J.