Journal of Ocean University of China

, Volume 8, Issue 3, pp 233–240

Fishery resources in arid zone mangroves in gulf of Kachchh, Gujarat, northwest coast of India

  • A. Saravanakumar
  • M. Rajkumar
  • J. Sesh Serebiah
  • G. A. Thivakaran
Article

DOI: 10.1007/s11802-009-0233-3

Cite this article as:
Saravanakumar, A., Rajkumar, M., Sesh Serebiah, J. et al. J. Ocean Univ. China (2009) 8: 233. doi:10.1007/s11802-009-0233-3

Abstract

The finfish and shellfish resources were assessed quantitatively and qualitatively in regard to their abundance in creek waters at three sites within a period of two years, from January 1999 to December 2000, in the western mangrove areas of Kachchh. The catch rate varied from 0.69 to 6.99 kg h−1. It was low during monsoon (July to October), which could be due to the freshwater-flow-induced salinity reduction in all the sites. Among 38 species recorded, 5 were shellfish and 33 were finfish. The spawning period of fishes was found to be during summer and early monsoon period (May to August). Surface water temperatures varied from 17 °C to 37 °C. Salinity values varied from 34 to 44 and the pH ranged between 7 and 8.9. Variation in dissolved oxygen content was from 3.42 to 5.85 mL L−1. The high fishery densities in these semi arid mangrove creek areas were recorded during monsoon and early winter season.

Key words

mangrovesGulf of KachchhGujaratfinfish and shellfishspecies diversityrichnessevenness

Copyright information

© Science Press, Ocean University of China and Springer-Verlag GmbH 2009

Authors and Affiliations

  • A. Saravanakumar
    • 1
  • M. Rajkumar
    • 1
  • J. Sesh Serebiah
    • 2
  • G. A. Thivakaran
    • 3
  1. 1.Centre of Advanced Study in Marine BiologyAnnamalai UniversityParangipettaiIndia
  2. 2.Marine Studies and Coastal Resource ManagementMadras Christian CollegeTambaran, ChennaiIndia
  3. 3.Gujarat Institute of Desert EcologyBhujIndia