Larval rearing of the spiny eel, Macrognathus aculeatus (Lacepede) under different rearing conditions: a preliminary study


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Authors

  • S K Sahoo Central Institute of Freshwater Aquaculture, Kausalyaganga, Bhubaneswar - 751 002, India
  • S S Giri Central Institute of Freshwater Aquaculture, Kausalyaganga, Bhubaneswar - 751 002, India
  • S Chandra Central Institute of Freshwater Aquaculture, Kausalyaganga, Bhubaneswar - 751 002, India
  • A K Sahu Central Institute of Freshwater Aquaculture, Kausalyaganga, Bhubaneswar - 751 002, India

Abstract

A study was carried out to evaluate the role of rearing conditions on growth and survival of the spiny eel, Macrognathus
aculeatus (Lacepede) larvae during a 30 days experimental period. The study was conducted with three treatment groups: the
first group was reared in fibre-glass tanks with 6" deep water (Treatment-1), the second group in tanks provided with floating
weed covering one fourth of the water surface (Treatment-2) and the third group was reared in tanks provided with soil bed
and floating weed (Treatment-3). The tanks used for treatments 1 and 2 were not provided with soil bed. The growth and
survival rate of the larvae, reared in the tanks with normal bottom and weed as well as in normal bottom without weed did not
differ (p<0.05). However, the growth and survival rate were significantly reduced (p<0.05) when reared in tanks with soil
base as well as floating weed. The results indicated that either providing soil at tank bottom or weed in rearing system did not
help increase growth and survival of this species during the experimental rearing.

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Author Biographies

  • S K Sahoo, Central Institute of Freshwater Aquaculture, Kausalyaganga, Bhubaneswar - 751 002, India
    Central Institute of Freshwater Aquaculture, Kausalyaganga, Bhubaneswar - 751 002, India
  • S S Giri, Central Institute of Freshwater Aquaculture, Kausalyaganga, Bhubaneswar - 751 002, India
    Central Institute of Freshwater Aquaculture, Kausalyaganga, Bhubaneswar - 751 002, India
  • S Chandra, Central Institute of Freshwater Aquaculture, Kausalyaganga, Bhubaneswar - 751 002, India
    Central Institute of Freshwater Aquaculture, Kausalyaganga, Bhubaneswar - 751 002, India
  • A K Sahu, Central Institute of Freshwater Aquaculture, Kausalyaganga, Bhubaneswar - 751 002, India
    Central Institute of Freshwater Aquaculture, Kausalyaganga, Bhubaneswar - 751 002, India

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Issue

Vol. 56 No. 1 (2009)

Section

Note

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How to Cite

Sahoo, S. K., Giri, S. S., Chandra, S., & Sahu, A. K. (2011). Larval rearing of the spiny eel, Macrognathus aculeatus (Lacepede) under different rearing conditions: a preliminary study. Indian Journal of Fisheries, 56(1), 47-49. https://epubs.icar.org.in/index.php/IJF/article/view/6861