Fishery resources in arid zone mangroves in gulf of Kachchh, Gujarat, northwest coast of India
- First Online:
- 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
- 127 Views
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.