- Tytuł:
-
Characteristics of populations of narrow-clawed crayfish Pontastacus leptodactylus in three Belarusian lakes of the Baltic sea catchment area
Charakterystyka populacji raków wąskopłetwych Pontastacus leptodactylus w trzech białoruskich jeziorach zlewni Morza Bałtyckiego - Autorzy:
- Alekhnovich, Anatoli
- Powiązania:
- https://bibliotekanauki.pl/articles/27322961.pdf
- Data publikacji:
- 2021
- Wydawca:
- Uniwersytet Pomorski w Słupsku
- Tematy:
-
narrow-clawed crayfish
population size
survival rate
population growth rate - Opis:
- The population characteristics of narrow-clawed crayfish were studied in three Belarusian lakes of the Baltic Sea catchment area. The life history of crayfish is 7 years. The number of larvae I, produced by all females of the population in late spring – early summer is the highest in eutrophic lake Bobrovichskoe – 26.37 ind./m2, the lowest number of larvae I is in mesotrophic lake Ginkovo – 7.09 ind./m2. The number of individuals that survive the transition period from larvae I to the age of one year is 2.80 ± 0.46%, to sexual maturity at the age of 3 years – 0.73 ± 0.15% of crayfish individuals. In the considered populations, the annual survival rate of sexually mature females in the considered populations is 50.7 ± 1.53%. The average generation time is 4.03 ± 0.13 years.
- Źródło:
-
Baltic Coastal Zone. Journal of Ecology and Protection of the Coastline; 2021, 25; 19-30
1643-0115 - Pojawia się w:
- Baltic Coastal Zone. Journal of Ecology and Protection of the Coastline
- Dostawca treści:
- Biblioteka Nauki
Artykuł