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Observations on feeding behaviour and survival rates in the estuarine calanoid copepods Acartia spinicauda and Heliodiaptomus cinctus (Crustacea: Copepoda: Calanoida)

DRS at CSIR-National Institute of Oceanography

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Title Observations on feeding behaviour and survival rates in the estuarine calanoid copepods Acartia spinicauda and Heliodiaptomus cinctus (Crustacea: Copepoda: Calanoida)
 
Creator Srivastava, Y.
Fernandes, Brenda
Goswami, S.C.
Goswami, U.
Achuthankutty, C.T.
 
Subject estuarine organisms
feeding behaviour
feeding experiments
food preferences
herbivores
survival
mortality
Acartia spinicauda
Heliodiaptomus cinctus
 
Description Experiments were conducted on the calanoid copepods, Acartia spinicauda (Acartiidae) and Heliodiaptomus cinctus (Diaptomidae) in order to determine food preference and survival rates respectively. Adults of A. spinicauda were fed monocultures of Tetraselmis gracilis (Chlorophyta) and Skeletonema costatum (Bacillariophyta), whereas, adults of H. cinctus were fed on five different combinations of phytoplankton feed. Total hourly differences in pigment concentrations indicate that A. spinicauda preferred to feed on T. gracilis (90.08%) as compared to S. costatum (55.87%). A combined feed of Isochrysis galbana (50%) and Chaetoceros sp. (50%) was found to be most satisfactory in case of H. cinctus as there was no mortality till the 8th day and only 57% mortality on the 14th day. However, total mortality occurred on the 15th day. The results indicate that feeds played an important role in determining the survival rates in H. cinctus.
 
Date 2009-01-10T11:51:49Z
2009-01-10T11:51:49Z
1999
 
Type Journal Article
 
Identifier Indian Journal of Marine Sciences, Vol.28; 222-224p.
http://drs.nio.org/drs/handle/2264/1854
 
Language en
 
Rights Copyright [1999]. All efforts have been made to respect the copyright to the best of our knowledge. Inadvertent omissions, if brought to our notice, stand for correction and withdrawal of document from this repository.
 
Publisher Council of Scientific and Industrial Research, New Delhi