Large scale Mariculture of Seaweeds - Need of the Hour

Seaweeds are marine macroalgae consisting of taxonomically distinguished groups of Chlorophyta (Green seaweeds), Phaeophyta (Brown seaweeds) and Rhodophyta (Red seaweeds). They are generally found attached to rocks, pebbles or other aquatic plants in the intertidal or subtidal regions of the sea. Seaweeds are the natural source of phycocolloids such as agar-agar, algin and carra2eenan. A number of tropical seaweeds including green algae (Ulva, Enteromorpha, Monostroma, Caulerpa) brown seaweeds (Dictyota, Laminaria, Cladosiphon, Padina) and red seaweed (Gracilaria, Porphyra, Eucheuma) are eaten directly (sea vegetables) for their minerals, vitamins, proteins, essential amino acids and low fat content

मैंग्रोव और तटीय मेखाला प्रबंधन

कृपया पूरा लेखा पढ

भारत में समुद्री शैवाल का पैदावार - अतीत, वर्त्तमान और भविष्य

भारत में समुद्री शैवाल का पैदावार - अतीत, वर्त्तमान और भविष्

नदी प्रवाह और तटीय उत्पादकता

कृपया पूरा लेख पढे

Protoplasts - a powerful tool in genetic manipulation of commercial seaweeds

Protoplast is an importanttooi for parasexual modification of genetic content of plant cells (Vasil and Vasil, 1980). Production of algal protoplasts and their fusion are relatively new fields and lag far behind that of terrestrial plants (Berliner 1981, 1983; Cheney et af., 1986). To date, protoplasts have been isolated from several algae, most of which are blue green algae and green algae (Adamich and Hemmingsen, 1980). Protoplasts have been obtained from some marine brown algae (Kloareg and Quantrano, 1987)

കടല്‍പായല്‍(Seaweeds)

Seaweeds which are macroscopic marine algae belong to the primitive non flowering group - Thallophyta. They grow submerged and attached to hard substrata such as stones, rocks and coral reefs along the shallow coasts, lagoons, estuaries and brackishwater habitats of the Andaman - Nicobar and Lakshadweep islands and coastal areas of Tamil Nadu, Kerala, Karnataka, Maharashtra, Gujarat, Goa, Orissa and Andhra Pradesh. Based on their pigmentation and other morphological characteristics they are categorised into three major groupschlorophyceae which is popularly known as green seaweeds, phaeophyceae or brown seaweeds and rhodophyceae or red seaweeds

Gracilariopsis lemaneiformis (Bory) Dawson - a red alga reported from certain backwaters of Kerala

A long cylindrical Thalloid multifariously branched red alga was reported from Dhalawapuram (Ashtamudl lake), Kadalundi (Kadalundinagaram) and Mopla Bay (Kannur) and was later identified as Graciiariopsis lemaneifonnis (Fig. 1). The salinity in all these regions ranged from 14 to 20 ppt during the non-monsoon period; during the SW monsoon, this species could not sustain drop in salinity below 8.0 ppt

Seaweed and seagrass biodiversity of Southwest coast of India

Macroscopic marine algae popularly known as seaweeds and the submerged marine flowering plants commonly known as Seagrasses constitute marine primary producers. Seaweed beds along the rocky coasts and the extensive meadows of seagrasses are the most productive ecosystems in marine environment. They are immensely capable of sequestering dissolved carbon dioxide at faster rates and their role in containing ocean acidification in particular and in mitigating the climate change impacts are well understood. Seaweeds consist of taxonomically distinguished groups of Chlorophyta (green seaweeds), Phaeophyta (brown seaweeds) and Rhodophyta (red seaweeds)

कार्बन पृथक्करण और आजीविका के लिए समुद्री शैवालों का समुद्री संवर्धन

Mariculture of seaweeds for carbon sequestration and livelihood suppor

Occurrence of Halophila beccarii Asch. from Kumbala estuary, Kerala

Occurrence and distribution of sea grasses from Kerala coast have not received much attention. Nair et al(1983) Reported the occurrence of Halophila gracilis from Ashtamudi estuary