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Energy budget of the female harpacticoid Tisbe carolinensis (Copepoda,Crustacea)
Affiliation:1. Universidade Federal de Pernambuco, Centro de Biociências, Departamento de Zoologia, Av. Prof. Moraes Rêgo s/n, Cidade Universitária, 50670-420 Recife, PE, Brazil;2. Universidade Federal de Pernambuco, Centro de Tecnologia e Geociências, Departamento de Oceanografia, Av. Prof. Moraes Rêgo 1235, Cidade Universitária, 50670-901 Recife, PE, Brazil;3. Universidade Federal Rural de Pernambuco, Departamento de Biologia, Área de Ecologia. Av. Dom Manoel de Medeiros s/n, Dois Irmãos, 52171-900 Recife, PE, Brazil;1. Department of Biological Sciences, College of Science, Sungkyunkwan University, Suwon 440-746, South Korea;2. Department of Marine Science, College of Natural Sciences, Incheon National University, Incheon 406-772, South Korea;3. Pacific Ocean Research Center, Korea Institute of Ocean Science and Technology, Ansan 426-744, South Korea;4. Department of Life Science, College of Natural Sciences, Hanyang University, Seoul 133-791, South Korea;5. Department of Marine Sciences and Convergent Technology, College of Science and Technology, Hanyang University, Ansan 426-791, South Korea;6. Department of Life Science, College of Natural Sciences, Sangmyung University, Seoul 110-743, South Korea
Abstract:
Partitioning of the ingested energy in harpacticoid Tisbe carolinesis was investigated with 14C labelled diatom Cylindrotheca sp. (Strain N-1) as food source under laboratory conditions (salinity 30 ppt, 24 ± 1.5°C). Over a 24 hr period, egg sacs and fecal pellets produced per T. carolinesis were 0.64 and 1.19, respectively. Radioactivity measured in the body accounted for 49.1% of the ingested radioisotope, whilst 42.3% of the energy was channneled into reproduction. Respiration and excretion took up 4.9% of the energy and the rest, 3.7%, went into fecal pellets.
Keywords:
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