Publications (10)13.75 Total impact
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Article: Dinoflagellate cyst assemblages in recent sediments of Visakhapatnam harbour, east coast of India: Influence of environmental characteristics.
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ABSTRACT: The distribution and abundance of dinoflagellate cysts in recent sediments from Visakhapatnam harbour, east coast of India was investigated and compared with sediment characteristics and physico-chemical variables of the overlying water column. The cyst abundance varied from 11 to 1218cystsg(-1)dry sediment. Changes in the cyst assemblages from phototrophic to heterotrophic forms were observed from inner to outer harbour stations, and related to changes in environmental characteristics. Enhanced cyst production of potentially harmful dinoflagellate Protoceratium reticulatum was recorded in the inner harbour stations with higher nutrient concentrations. Protoperidinium cysts were the most diversified group, and were dominant in the outer harbour stations having improved water conditions and circulation. This study points out the potential use of dinoflagellate cyst populations in providing information on environmental conditions.Marine pollution bulletin 12/2012; · 2.63 Impact Factor -
Article: Numerical simulations of barnacle larval dispersion coupled with field observations on larval abundance, settlement and recruitment in a tropical monsoon influenced coastal marine environment.
Journal of Marine Systems 01/2012; 94:218-231. · 2.13 Impact Factor -
Article: Numerical simulations of barnacle larval dispersion coupled with field observations on larval abundance, settlement and recruitment in a tropical monsoon influenced coastal marine environment.
Journal of Marine Systems 01/2012; · 2.13 Impact Factor -
Article: Changes in the abundance and composition of zooplankton from the ports of Mumbai, India.
Environmental Monitoring and Assessment. 01/2010; 168:179-194. -
Article: Changes in the abundance and composition of zooplankton from the ports of Mumbai, India.
Environmental Monitoring and Assessment 01/2010; 168:179-194. · 1.40 Impact Factor -
Article: Changes in the occurrence of hard substratum fauna: A case study from Mumbai harbour, India.
Indian Journal of Marine Sciences 01/2010; 39(1):74-84. · 0.42 Impact Factor -
Article: Mumbai harbour, India: Gateway for introduction of marine organisms.
Environmental Monitoring and Assessment 01/2010; 163:583–589. · 1.40 Impact Factor -
Article: What do barnacle larvae feed on? Implications in biofouling ecology.
Journal of the Marine Biological Association of the UK 01/2010; 90(6):1241-1247. · 1.00 Impact Factor -
Article: Effect of hydrodynamic cavitation on zooplankton: A tool for disinfection.
Biochemical Engineering Journal 01/2008; 42:320-328. · 2.64 Impact Factor -
Article: Larval development and metamorphosis in Balanus amphitrite Darwin (Cirripedia; Thoracica): significance of food concentration, temperature and nucleic acids
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ABSTRACT: The influence of food concentration (Chaetoceros calcitrans at 1×105 and 2×105 cells ml−1) and temperature (20°C and 30°C) on the nucleic acid content of the nauplii and the cyprids of Balanus amphitrite, an acorn barnacle, was evaluated. Food concentration and temperature jointly determined the naupliar instar duration. The total naupliar development period lasted 9–11 days at 20°C and was longer when compared to 5–6 days observed at 30°C. Increase in rearing temperature and food concentration positively influenced the size of the larvae. Food concentration influenced the DNA of III and VI naupliar instars and temperature influenced the DNA of IV and V instar nauplii. The RNA content of IV–VI naupliar instars was also influenced by the rearing temperature. Naupliar experience determined cyprid metamorphosis capability. The RNA content of larvae, that had longer total naupliar duration at 20°C, was considerably less than those raised at 30°C. This difference in RNA content was reflected in the capability of the cyprids to survive at 5°C. The resultant cyprids at 20°C could only successfully metamorphose over 2–4 days, whereas, those at 30°C could do so over 8–16 days. Such differences in the capability to metamorphose will be of critical importance to recruitment and early post-settlement mortality.Journal of Experimental Marine Biology and Ecology.
