Community based local management of fisheries - a paradigm from Minicoy, Lakshadweep, lndia

Traditional practices related to fishing observed by the fishermen of Minicoy, Lakshadweep with a mew to conserve the resource and avoid conflicts among them are detailed here

Feeding habits of skipjack tuna, Katsuwonus pelamis associated with flotsam in Minicoy, Lakshadweep

Feeding habits of skipjack tuna associated with flotsam and those from free schools were studied based on data collected from the pole and line fishery from Minicoy during 1999-2001. The flotsam were found in different months but was more frequent during Sept. to Nov. A preponderance of smaller siz-e groups below 40 cm (48%) was seen around flotsam whereas in free schools size groups above 50 cm (65%) dominated. Stomach contents of 828 individuals were analysed. In flotsam associated skipjack, stomachs were found to be either empty or with natural prey. Caridian shrimps were found to be the main food in all size groups/and were actively fed. The average ration per 1000 g body weight ranged between 17.3 and 39.4 ml suggesting that the flotsam have a function related to feeding rather than refuge

Influence of Spatial and Temporal Variations on Phytoplankton Community Structure in Pachiparai Reservoir, Kanyakumari District, TN, India

Pachiparai Reservoir in Kanyakumari District TN, India is influenced by seasonally reversing monsoon and the characteristics of the water body influenced by riverine inflow. An effort to elucidate the spatial and temporal variation in the phytoplankton community was carried out. The observations were primarily made by during Jan 2004 – Dec 2004. Average phytoplankton abundance and primary production varied marginally during the period of study. Surface phytoplankton population showed seasonal variations and the abundance peaked during the beginning of North East monsoon (November). The inflow of water during the monsoon into the reservoir was the prime factor that influenced input of the nutrients and appeared to enhance the primary production. This study provides the details of the spatial and temporal variation and explores the implication and causative factors responsible for the dynamics of the phytoplankton populations

Correlation between the Diversity Manifestation and Phytoplankton Productivity in Pechiparai Reservoir, Kanyakumari District, Tamil Nadu, India

Correlation between the diversity and primary production index of phytoplanktons of Pechiparai Reservoir in Kanyakumari District, TN, India was assessed from January to December 2004. Average phytoplankton primary production varied significantly during the period of study. Maximum diversity and primary productivity were record in the months of Jan to Mar. The inflow of water during the monsoon into the reservoir was the prime factor that influenced input of the nutrients and appeared to enhance the primary production during this period. Shennon – Weiner diversity index varied between 1.242 and 1.897 during the period of study. Likewise, Sympson index varied from 0.822 to 0.898 and evenness from 446 to 956. The value of annual average of phytoplankton biomass was 319 Nos-1. The value of annual average of gross primary production and net primary production were 2719 mg C/m3/d and 1610 mg C/m3/ d respectively

Polychates associated with the brown algae Sargassum spp. In Kudanmulam waters, East coast of India

Species diversity, density and seasonal abundance of polychaetes associated with Sargassum sp in Kudankulam water was investigated for a period of one year from May 2003 to April 2004. A total of 13 species belonging to 6 families were recorded. Platynereis dumerili and Perinereis nigropunetata were the abundant species. Seasonal variation in density and species composition was observed. During the study period the Shannon-Weiner diversity index (H1) ranged from 0.178 to 0.669 and the evenness index (j1) varied between 0.373 and 0.98

Not Available

Not AvailableFeeding habits of skipjack tuna associated with flotsam and those from free schools were studied based on data collected from the pole and line fishery from Minicoy during 1999-2001. The flotsam were found in different months but was more frequent during Sept. to Nov. A preponderance of smaller siz-e groups below 40 cm (48%) was seen around flotsam whereas in free schools size groups above 50 cm (65%) dominated. Stomach contents of 828 individuals were analysed. In flotsam associated skipjack, stomachs were found to be either empty or with natural prey. Caridian shrimps were found to be the main food in all size groups/and were actively fed. The average ration per 1000 g body weight ranged between 17.3 and 39.4 ml suggesting that the flotsam have a function related to feeding rather than refuge.Not Availabl

Isolation, characterization and growth response of biofilm forming bacteria <i style="">Bacillus pumilus</i> from the sea grass, <i>Halodule pinifolia</i> off Kanyakumari coast

443-448Bacteria from the biofilms of the blade of sea grass, Halodule pinifolia occurring along the sea grass beds off Kanyakumari coast (Tamil Nadu) were isolated. Bacteria identified included Pseudomonas, Staphylococcus, E.coli and Bacillus species. Predominant biofilm bacterium was characterized as Bacillus pumilus (Accession No. HM006706) by standard biochemical and molecular methods. Sea grass biofilm associated B. pumilus strain was aerobic, Gram positive, rod-shaped, spore-forming motile bacteria. The 16s rDNA gene sequence of the new isolate B. pumilus had shown maximum similarity (96%) with other B. pumilus strains PRE14, NHIC3, CT3. Growth response due to interaction of B. pumilus in the presence of sea grass extract was evaluated by inoculating in different concentration of sea grass extract. Results indicated that more colony forming units (4.6×1011 CFUs) in Zobell marine broth supplemented with 20.0% of the water extract of Halodule pinifolia

Isolation, characterization and growth response of biofilm forming bacteria Bacillus pumilus from the sea grass, Halodule pinifolia off Kanyakumari coast

Isolation, characterization and growth response of biofilm forming bacteria Bacillus pumilus from the sea grass, Halodule pinifolia off Kanyakumari coas

Not Available

Not AvailableIsolation, characterization and growth response of biofilm forming bacteria Bacillus pumilus from the sea grass, Halodule pinifolia off Kanyakumari coastNot Availabl