Gulf of mannar

The present study was carried out to estimate the effect of the industrial effluent discharge on proximate composition of commercial landing six fish species in Gulf of Mannar. It was found that, there was variation in moisture, fat and ash content (Sardinella longiceps, Selaroides leptolepis, Epinephelus quoyanus and Lethrinus lentjan) between the industrial and non-industrial area and also the fat and ash had a statistical significance at 5 and 10% level but no significant change in Penaeus semisulcatus and Portunus sanguinolentus.

8p trinhthamhodang1216 19-11-2020 11 1   Download

Gulf of Mannar is a unique marine habitat with diverse of macroaglae. They have a rich source of nutrients, biologically active UV absorbing compounds like Mycosporine like Amino acids (MAAs). In this study, red algae Gelidiella acerosa, Acanthophora spicifera and Hypnea musciformis collected from Pudumadam, Gulf of Mannar, southeast coast of India were used for isolation of MAAs.

9p chauchaungayxua8 03-10-2020 9 2   Download

The length - weight relationship of Charybdis natator (Herbst, 1794) was studied from Gulf of Mannar for a period of one year. The interrelationship between carapace width, carapace length, chelarpropodus length, weight and abdominal width in males as well as females, were estimated. Fishing activities are carried out throughout the year.

12p quenchua6 15-06-2020 4 2   Download

A detailed study had been carried out on species abundance, biomass and composition of copepod in four different offshore stations namely, Station I: Vembar, II: Keelavaipar, III: Punnaikayal and IV: Thiruchendhur in Gulf of Mannar region from October 2011 to April 2012. A total of 56 copepod species belongs to 20 families under 4 orders have been encountered during the period.

26p nguathienthan4 21-04-2020 8 0   Download

An experiment was conducted to assess the growth performance of quails on supplementation of seaweeds. 600 numbers of day old quail chicks were randomly divided into four groups with five replicates and 25 chicks in each replicate. Seaweeds viz., Chaetomorpha antennina, Sargassum wightii and Gracilaria corticata were collected from Gulf of Mannar region and was dried and included in the ration @ 3 % level and treated as group - 2, 3 and 4, respectively. Quail on normal ration was kept as control (Group -1). The trial was conducted for six weeks period.

3p cothumenhmong4 25-03-2020 13 1   Download

Cardinalfishes belongs to the family, Apogonidae is cryptic in nature that often shows taxonomic ambiguity through conventional taxonomy. It is globally accepted that mitochondrial DNA marker i.e., Cytochrome C Oxidase (COI) can be used to resolve these taxonomic uncertainties. In the present study, the DNA barcode was developed using COI marker for the two species of cardinalfishes (Archamia bleekeri and Ostorhinchus fleurieu) collected from Thoothukudi coast. Results showed that the distance values between the two species are higher than that of within the species.

14p cothumenhmong3 22-02-2020 13 1   Download

The present investigation was carried out to assess the distribution of zooplankton in seagrass ecosystem in comparison with that of the coastal waters without seagrasses in Gulf of Mannar. Water and plankton samples were collected from the seagrass ecosystem (Station 1) and the control station without seagrasses (station 2) from September 2016 to May 2017. The physico chemical parameters were analysed and the mean values of surface water temperature, salinity, pH, dissolved oxygen, nitrite, nitrate, phosphate, silicate, gross primary productivity and chlorophyll-a were 27.72⁰ C, 34.

9p trinhthamhodang3 22-02-2020 14 0   Download

The present study was conducted to gather information on traditional knowledge is being followed by Kombuthurai fishers. Kombuthurai is a small fishing village located in Thoothukudi district where they are following a unique fishing practice by hook and line method, without employing any fishing nets. Major and minor targeted catches and its peculiar fishing ground, determined hook size and bait fish usage for those fishery were documented based on their traditional knowledge.

9p trinhthamhodang3 17-02-2020 13 0   Download