Occurrence of Hydroclathrus tenuis Tseng & Baoren, (Phaeophyta) from Gulf of Kutch, northwest coast of India

277-279Hydroclathrus clathratus (C. Agardh), a marine brown alga was considered to be a monotypic, till H. tenuis Tseng & Baoren was reported during 1983 from south China Sea. Recently the same alga was noticed to be abundant from Kalubhar Island in the Gulf of Kutch (India), during February-March 1994. A few ecological and relevant taxonomical observations made on the alga have been described here, which is incidently the first record from the Indian Ocean

<i>Coeloseira compressa</i> hollenb. (Champiaceae, Rhodophyta) - A new marine algal species from Goa, India

37-41Occurrence of a red algal species Coeloseira is recorded from Bambolim coast, Goa along the central west coast of India. The genus is characterised by the presence of polysporangia, stoloniferous pattern branching, separate secondary branches and a group of apical cells. Habitat characteristics are also reported

Chemical composition of marine macrophytes and their surrounding water and sediments, from Minicoy, Lakshadweep

123-125Among the marine algae studied, Herposiphonia spp showed highest concentration of nitrogen (6.55%). In seagrasses, Cymodocea rotundata was rich in nitrogen (6.19%) and organic carbon (30.8%). In general seagrasses were rich in the major elements compared to marine algae. The coastal waters around Minicoy showed high concentrations of Na, K and Mg compared to Ca

Biochemical Constituents of Seaweeds along the Maharashtra Coast

297-299Protein, carbohydrate and organic carbon were estimated in 43 marine algal species from different stations along the Maharashtra Coast in India. These species showed variation in their biochemical contents. Protein varied from 10 to 33%. Chlorophyceae and rhodophyceae members were rich in protein and carbohydrate compared to phaeophyceae. Organic carbon showed maximum average value (33%) in chlorophyceae. C:N ratio varied from 5.2 to 29.8 and showed inverse relationship with protein

Study of mangrove environment of Maharashtra coast using remote sensing data

90-93Analysis of remote sensing data indicate approximately 210 km2 of the mangrove area along the Maharashtra coast. The dominant species along the coast are Rhizophora mucronata, Avicennia officinalis, A. marina, Sonneratia alba, S. apetala, while Excoecaria agallocha and Acanthus ilicifolius are very common. However, Kandelia candal, Bruguiera gymnorhiza, Ceriops tagal, Lumnitzera racemosa are restricted to few localities. Relatively, luxurient formations and more number of species, occur in Ratnagiri and Raigad districts. Scrubby and scanty vegetation dominated by Avicennia marina, along the Bombay coast, could be attributed to constantly increasing anthropogenic pressures

<smarttagtype namespaceuri="urn:schemas-microsoft-com:office:smarttags" name="place" downloadurl="http://www.5iantlavalamp.com/"> Marine macroalgal diversity along the Maharashtra coast: Past and present status </smarttagtype>

18-24 A comparative study on distribution and abundance of marine macroalgae was carried out at six sites along the Maharashtra coast with the available data from 1935 onwards. The analyses and interpretation of this data revealed very interesting trends in marine macroalgal diversity. A typical cyclic change in their distribution, abundance and the reproductive features were observed in these algal forms. Although, northern part of Maharashtra is subjected to increasing industrial pollution and habitat destruction, there are some pockets wherein high macroalgal diversity occurs. This may be because of the increased tolerance to the environmental changes. </smarttagtype

Properties of phycocolloid extracts from seaweeds of Goa (India)

181-182Phycocolloid extracts from 3 algal species (Hypnea musciformis, Gracilaria corticata and Gelidiella sp.) and their mixtures were studied for gel strength, gelling temperature and melting point. Total yield varied from 20 to 30% dry weight of the seaweed. Addition of an electrolyte such as KCl (0.5%) increased the yield and improved gel strength

Ecology of intertidal benthic algae of northern Karnataka coast

73-81The intertidal benthic marine algal flora has been studied for distribution, phenology, biomass and zonation along with the environmental conditions. About 65 species belonging to 42 genera of Chlorophyta, Phaeophyta have been recorded. Rhodophyta is dominant followed by Chlorophyta and Phaeophyta. Biomass of the dominant and perennial algal species is monitored. Maximum biomass is obtained during December to February. Ulva fasciata, U.lactuca, Enteromorpha intestinalis, Padina tetrastromatica, Spatoglossum asperum, Stoechospermum marginatum, Dictyota dichotoma, Sargassum spp, Porphyra vietnamensis, Gracilaria corticata and Amphiroa fragillissima are dominant. About 26 species have been recorded for the first time from this coast

Continental shelf islands of the Konkan coast

The Arabian Sea Islands are broadly divided into three groups: (1) Saurashtra group, (2) Konkan group, and (3) the Laccadive group. The Konkan group, comprising of 36 continental or nearshore islands, extend from Lat. 18° 55' N to 12° 51' N and Long. 71°, 50'E to 74° 50' E. The islands, in general, influence the coastal environments, hydrology, nutrient cycle, production at various tropic levels, distribution, abundance and reproduction of marine organisms. In spite of their importance and proximity to the mainland, the continental shelf islands of the Konkan have remained unexplored and very little scientific information is available. For the last two years, these islands are being studied under a special project, namely 'Investigations of the Arabian Sea Islands', sponsored by the Indian National Science Academy. The islands have been investigated as a single ecological unit in which the geological formations, floristic composition and faunal assemblages have been described. The paper suggests the broad classification of these ecosystems and also discusses the commercially important marine algae and animal resources

Ecology of mangroves in Mandovi and Zuari estuaries and the interconnecting Cumbarjua canal of Goa

47-53Mangroves are absent in the mouth regions (6 to 7 km long) of both the estuaries. On either bank they have sandy beaches or rocky shores. These zones have high wave action, high salinity and low temperature. The adjoining reaches of estuaries are the zones of mangrove vegetation, extending from the lower part of the middle reaches right up to the upper reaches of these estuaries. Cumbarjua canal is also included in this zone where the wave action is weak, the sandy beaches are replaced by mudflats and the estuarine water is slightly warmer, with lower salinity and higher oxygen. The mangrove flora of these estuaries includes 31 species of 29 genera belonging to 19 families of angiosperms. Succession of species, association, dominance and other aspects of vegetation like density, adaptation and height have also been discussed