Dobowa zmiennosc skladu gatunkowego i zageszczenia ryb w litoralu. Przyczyny i konsekwencje

• Autorzy: Kapusta A , Bogacka-Kapusta E. , Morzuch J.

Warianty tytułu

EN

Daily changes in the species composition and density of fish in the littoral zone: causes and consequences

• Języki publikacji: PL

Abstrakty

EN

The aim of the studies was to determine the daily changes in the occurrence of fish in the littoral zone in two shallow lakes differing in temperature regime and water transparency. The fish in the littoral zone of Lake Licheński were most active at dawn and dusk, while the highest biomass was noted at midnight. The greatest abundance of fish was noted in Lake Dołgie Wielkie, in which the waters are characterized by substantial turbidity, at 06:00 and 15:00, while the lowest abundance was noted at night. The abundance of fish in Lake Dołgie Wielkie was correlated with water temperature (r = - 0.555). The species richness of the fish assemblage of the littoral zone in Lake Dołgie Wielkie was negatively correlated with the time of day (r = - 0.644). The highest species richness was noted at night from 00:00 to 03:00 and in the morning at 09:00.

Słowa kluczowe

PL

zmiany skladu gatunkowego; sklad gatunkowy; litoral; jezioro Lichenskie; jeziora plytkie; zmiennosc dobowa; jezioro Dolgie Wielkie; zageszczenie populacji; ryby

• Wydawca: -
• Czasopismo: Komunikaty Rybackie
• Rocznik: 2010
• Numer: 1
• Opis fizyczny: s.1-5,rys.,tab.,bibliogr.

Twórcy

autor

Kapusta A

• Instytut Rybactwa Srodladowego, Olsztyn

autor

Bogacka-Kapusta E.

autor

Morzuch J.

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