Resting eggs of zooplankton (Copepoda and Cladocera) from the Kiel Bay and adjacent waters (southwestern Baltic)
Madhupratap, M.; Nehring, S.; Lenz, J. (1996). Resting eggs of zooplankton (Copepoda and Cladocera) from the Kiel Bay and adjacent waters (southwestern Baltic). Mar. Biol. (Berl.) 125(1): 77-87
In: Marine Biology: International Journal on Life in Oceans and Coastal Waters. Springer: Heidelberg; Berlin. ISSN 0025-3162; e-ISSN 1432-1793, more
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| Keywords |
Abundance
Aquatic communities > Plankton > Zooplankton
Cells > Sexual cells > Eggs > Resting eggs
Fauna > Aquatic organisms > Aquatic animals > Shellfish > Marine organisms > Marine crustaceans
Hatching
Acartia tonsa Dana, 1849 [WoRMS]; Centropages hamatus (Lilljeborg, 1853) [WoRMS]; Copepoda [WoRMS]; Eurytemora affinis (Poppe, 1880) [WoRMS]; Evadne nordmanni Lovén, 1836 [WoRMS]; Podon leuckartii (G.O. Sars, 1862) [WoRMS]; Podon polyphemoides (Leuckart, 1859) [WoRMS]; Temora longicornis (Müller O.F., 1785) [WoRMS]
ANE, Germany, Schleswig-Holstein, Kiel Bight [Marine Regions]
Marine/Coastal |
| Authors | | Top |
- Madhupratap, M.
- Nehring, S.
- Lenz, J.
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| Abstract |
Resting eggs of four species of calanoid copepods and three species of cladocerans were collected from sediments up to 5 cm depth from the Kiel Bay and adjacent waters in the southwestern Baltic Sea during April-May 1994. All but one species of cladoceran was successfully hatched/reared in the laboratory. In the Kiel Bay, egg abundances varied from 1.8 x 105 to 7.4 x 105m-2. Hatching success of copepod eggs collected from all depths was high (49 to 94%), but was 0 to 79% for cladoceran eggs. Darkness did not seem to affect hatching. Eggs found in the 4 to 5 cm layer of sediment were estimated to be about 15 yr old, showing the presence of an "egg bank" in the Baltic. Formation of resting eggs may be a genetic trait acquired during the ice ages. |
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