Finenko, Galina A; Romanova, Z A (2000): Parameters of population dynamics and energetics of ctenophore Mnemiopsis leidyi in Sevastopol Bay from January 1995 to March 1996 [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.761605, Supplement to: Finenko, GA; Romanova, ZA (2000): Population dynamics and energetics of the ctenophore Mnemiopsis leidyi in Sevastopol Bay. Translated from Okeanologiya, 2000, 40(5), 720-728, Oceanology, 40(5), 677-685
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Abstract:
Population dynamics of abundance and biomass were studied and specific production of population of ctenophore Mnemiopsis leidyi was estimated in the Sevastopol Bay from January 1995 to March 1996. The ctenophores achieved maximum abundance and biomass in July during period of intensive reproduction. Young specimens (<5 mm) contributed during that period as much as 50-87% to total abundance of population. Annually averaged daily specific growth rate was 0.039. Growth, food consumption, and rate of filtration were measured in a laboratory under two concentrations of food (Acartia clausi and Moina micrura: 60 and 100 specimens per liter, 0.35 and 0.60 mg wet weight/l). Both concentrations sustained growth of animals with dry weight less than 20 mg. However these concentrations were insufficient to sustain growth of larger ctenophores. Specific growth rate of the ctenophores with dry weight <20 mg under favorable food conditions was 0.20-0.30 l/day. Specific growth rate of the ctenophores in the Sevastopol Bay never exceeded 0.093 l/day, mean biomass of fodder zooplankton in the bay being 90 mg/m**3 in terms of wet weight. Hence a conclusion was made that population of M. leidyi in the bay was limited by lack of food.
Project(s):
Archive of Ocean Data (ARCOD)
Coverage:
Latitude: 44.623500 * Longitude: 33.507800
Date/Time Start: 1995-01-01T00:00:00 * Date/Time End: 1996-03-31T00:00:00
Event(s):
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
3 datasets
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Datasets listed in this publication series
- Finenko, GA; Romanova, ZA (2000): (Table 2) Energy in 1 mg of wet weight of ctenophores from the Sevastopol Bay in 1995-1996. https://doi.org/10.1594/PANGAEA.761597
- Finenko, GA; Romanova, ZA (2000): (Table 3) Specific rate of growth of ctenophore population in the Sevastopol Bay. https://doi.org/10.1594/PANGAEA.761598
- Finenko, GA; Romanova, ZA (2000): (Table 5) Grazing of zooplankton biomass by the ctenophore population in the Sevastopol Bay. https://doi.org/10.1594/PANGAEA.761604