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Effect of temperature on development and growth of the raptorial cladoceran Leptodora kindtii under laboratory conditions
Author(s) -
Vijverberg Jacobus,
Koelewijn Hans Peter
Publication year - 2004
Publication title -
freshwater biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.297
H-Index - 156
eISSN - 1365-2427
pISSN - 0046-5070
DOI - 10.1111/j.1365-2427.2004.01276.x
Subject(s) - biology , instar , juvenile , branchiopoda , temperate climate , zoology , ecology , toxicology , cladocera , zooplankton , larva
Summary 1. Leptodora is a key species in many temperate freshwater systems, but so far its role in the food web could not be properly evaluated because detailed information about its secondary production was lacking. As we wanted to estimate the secondary production of Leptodora , we measured its development and growth rates in the laboratory. 2. Employing improved methods to estimate growth and instar durations, we cultured Leptodora kindtii in the laboratory at four constant temperatures (15, 17.5, 20 and 25 °C). Growth in length and development times of eggs and instar stages were assessed. 3. Growth rates at 15, 17.5 and 20 °C were similar, but at 25 °C growth was distinctly faster. At 17.5 °C we observed seven juvenile instar stages before the first adult instar stage was reached.