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Title: Seagrass ecology microbial association and bioactivity profiles with special reference to halodule pinifolia miki hartog and syringodium isoetifolium asch dandy occurring along the south indian coast
Researcher: Medo Merina,R
Guide(s): Lipton,A P
Keywords: bioactivity profiles
coastal waters
currents and waves
ecological engineers
microbial association
south indian coas
Upload Date: 24-Jun-2014
University: Manonmaniam Sundaranar University
Completed Date: November 2010
Abstract: Seagrasses are a unique group of angiosperms that have adapted to exist fully submersed in the sea. They profoundly influence the physical, chemical and biological environments in coastal waters, acting as ecological engineers (Wright and Jones, 2006). There are relatively a few species globally (60 species) and these are grouped in 10 genera and 5 families (Short and Coles, 2001). Generally they are divided into five temperate and five tropical genera. The family Zosteraceae includes genera Zostera and Phyllospadix. Hydrocharitaceae notably includes Enhalus, Thalassia and Halophila. The family Potamogetonaceae includes Cymodoceae, Halodule and Syringodium and Posidoniaceae includes genus Posidonia. Additionally, a fifth family Ruppiaceae is sometimes accepted as a family of seagrass. They are common in brackishwater and the species Ruppia is a very important seagrass in parts of the Mediterranean region, particularly in the Black, Aral and Caspian Seas. In India, seagrass comprises 15 species and is dominated by Cymodocea rotundata Ehrenb. and Hempr. ex Asch., Cymodocea serrulata (R.Br.) Asch. and Magnus., Thalassia hemprichii (Ehrenb.) Asch., Halodule uninervis (Forsk.) Asch., H. pinifolia (Miki) Hartog, H. beccarii Asch., Halophila ovalis (R.Br.) Hook F. and H. ovata Gaud. (Jagtap et al., 2003). The structural components of leaves, rhizomes and roots of seagrasses modify currents and waves, and trap and store both sediments and nutrient inputs of the coastal ocean. So the biodiversity in seagrass meadows is greater than in adjacent unvegetated areas and faunal densities are orders of magnitude higher inside the meadows. newline
Pagination: viii,245p.
Appears in Departments:Department of Marine Science

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01_titles.pdfAttached File54.2 kBAdobe PDFView/Open
02_certificate.pdf146.14 kBAdobe PDFView/Open
03_declaration.pdf18.42 kBAdobe PDFView/Open
04_acknowledgement.pdf19.19 kBAdobe PDFView/Open
05_contents.pdf18.29 kBAdobe PDFView/Open
06_list of tables.pdf23.39 kBAdobe PDFView/Open
07_list of tigures.pdf24.4 kBAdobe PDFView/Open
08_preface.pdf476.19 kBAdobe PDFView/Open
09_chapter 1.pdf6.32 MBAdobe PDFView/Open
10_chapter 2.pdf4.97 MBAdobe PDFView/Open
11_chapter 3.pdf940.37 kBAdobe PDFView/Open
12_chapter 4.pdf880.58 kBAdobe PDFView/Open
13_chapter 5.pdf176.75 kBAdobe PDFView/Open
14_summary.pdf26.82 kBAdobe PDFView/Open
15_references.pdf274.41 kBAdobe PDFView/Open

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