Effect of Physico-Chemical Parameters on Crabs Biodiversity
Varadharajan D*, Soundarapandian P and Pushparajan N
Faculty of Marine Sciences, Centre of Advanced Study in Marine Biology, Annamalai University, Parangipettai-608502, Tamil Nadu, India
- *Corresponding Author:
- Varadharajan D
Faculty of Marine Sciences
Centre of Advanced Study in Marine Biology
Annamalai University, Parangipettai-608502
Tamil Nadu, India
E-mail: [email protected]
Received date: October 01, 2012; Accepted date: November 12, 2012; Published date: November 16, 2012
Citation: Varadharajan D, Soundarapandian P, Pushparajan N (2013) Effect of Physico-Chemical Parameters on Crabs Biodiversity. J Marine Sci Res Dev 3:116. doi: 10.4172/2155-9910.1000116
Copyright: © 2013 Varadharajan D, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
If physico-chemical parameters are not suitable, it will affect the distribution of crabs. So, it is designed to know the effect of physico-chemical parameters on the biodiversity of crabs from Arukkattuthurai to Pasipattinam. Minimum atmospheric temperature was recorded in the months of November and December 26.4°C (stations 2 and 8) and maximum 32.3°C was recorded in the months of April and May (stations 2 and 5). Minimum water temperature was recorded in the month of November 26.3°C (stations 2 and 8) and maximum 31.5°C was recorded in the months of April and May (stations 2 and 5). The salinity was minimum in month of December 25.5% (stations 2, 5 and 9) and maximum was recorded in the month of May 35.5 (stations 2, 5 and 9). The minimum pH 7.6 was recorded in the month November (stations 2, 5 and 8) and maximum was 8.3 in the month of May (stations 2, 5 and 8). Minimum dissolved oxygen 2.58 mg/L was recorded in the month of May (stations 2, 5 and 7) and maximum was 5.83 mg/L recorded in the month of November (stations 2, 5 and 8). Light extension co-efficient was recorded minimum, 1.43 Mcm-1 during the summer season in April (stations 5, 6 and 8), and maximum 7.95 Mcm-1, during monsoon season in November (stations 5, 6 and 8). The minimum turbidity 24.0 NTU was recorded during the monsoon in April (stations 2, 3 and 5) and maximum 35. 0 NTU was recorded during summer in December (stations 2, 3 and 5).