Reserve of oocytes of protoplasmatic growth in the ovaries of bream, Abramis brama [L.], females from Lake Kortowskie and Lake Blanki

• Autorzy: Kopiejewska W.

Warianty tytułu

PL

Zapas oocytow protoplazmatycznego wzrostu w jajnikach samic populacji leszcza, Abramis brama [L.], Jeziora Kortowskiego i Jeziora Blanki

• Języki publikacji: EN

Abstrakty

EN

1.5 to 14.5% of the oocytes develop in the annual cycle in the ovaries of bream females in Lake Kortowskie and Lake Blanki. This corresponds to 20.7-321.3 thousand eggs. An increase of absolute fecundity of the females takes place through utilization of the reserve of oocytes of protoplasmatic growth which are found in the ovaries during vitellogenesis from 1.5 to 14.5% as well as through an increase of the number of eggs per one per cent of oocytes in the ovaries.

PL

The health condition of eel, Anguilla anguilla (L.), caught in the Szczecin Lagoon off Trzebież in 1971-1913 and in 6 fishing grounds in 1982-1983 is evaluated. The clinical analysis, anatomo-pathological examinations, and hematologic parameters demonstrated a considerable increase in the incidence of circulatory disorders involving acute or chronic damaging inflammations, dominated by necropoietic lesions in viscera. The extent of pathologic changes is conditioned by, i.a., toxic effects of cyanobacteria (including Microcystis aeruginosa) blooms occurring in the Lagoon′s eutrophic waters.

Słowa kluczowe

PL

samice; Abramis brama; jezioro Blanki; oocyty; karpiowate; leszcz; Cyprinidae; ichtiologia; Jezioro Kortowskie; ryby; jajniki

• Wydawca: -
• Czasopismo: Acta Ichthyologica et Piscatoria
• Rocznik: 1993
• Tom: 23
• Numer: 2
• Opis fizyczny: s.19-32, tab.,bibliogr.

Twórcy

autor

Kopiejewska W.

• Akademia Rolniczo-Techniczna, 10-957 Olsztyn-Kortowo