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RESPIRATORY RATES OF MIGRATING ZOOPLANKTON IN THE NATURAL HABITAT
Author(s) -
Bishop John W.
Publication year - 1968
Publication title -
limnology and oceanography
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.7
H-Index - 197
eISSN - 1939-5590
pISSN - 0024-3590
DOI - 10.4319/lo.1968.13.1.0058
Subject(s) - epilimnion , hypolimnion , zooplankton , habitat , diel vertical migration , ecology , branchiopoda , range (aeronautics) , environmental science , oceanography , respiration , cladocera , biology , eutrophication , nutrient , geology , materials science , botany , composite material
Rates of oxygen consumption by zooplankton in Cayuga Lake were measured when the lake was stratified. The effects of temperature, pressure, and light were examined. Animals from the epilimnion, mostly cladocerans, and from the hypolimnion, mostly copepods, respired at similar rates in their respective habitats. When the animals were placed in the same habitats, copepods from the hypolimnion had the greater rates of respiration. Copepods, which migrated over an extensive vertical distance daily, were less sensitive to changes in depth than were cladocerans, which remained within a narrow vertical range. The copepods were less affected by changes in pressure and temperature within than outside their range of migration.