Publications by authors named "Karuppasamy P Manikandan"

Article Synopsis
  • This study evaluated the ecological health of waters in the Saudi Arabian Exclusive Economic Zone using benthic biotic indices from 2013 to 2018, covering 67 sampling locations with various depths and salinity.
  • Researchers found variations in macrobenthic density, averaging 566 individuals per square meter, and measured biodiversity with a Shannon diversity index averaging 4.70.
  • Most locations were deemed slightly disturbed or undisturbed, with 95.5% of sites showing good or high ecological status according to the M-AMBI analysis.
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Article Synopsis
  • The Gulf of Aqaba is a warm, high saline, and oligotrophic water body with significant ecological features.
  • This study presents the first quantitative data on deep-sea benthos, identifying 55 benthic species with a density of 160-670 ind. m and varied species richness and diversity.
  • The ecological health of the benthic communities is good to high, showing no major stress despite potential urban development in the region, making this research vital for future environmental assessments.
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This paper reports a deep-water coral framework (a single colonial bush or a larger bioconstruction of coral covering the sea bottom), formed entirely by the scleractinian coral Eguchipsammia fistula (Alcock, 1902) (Dendrophylliidae), in the northern Red Sea waters of Saudi Arabia at a depth of about 640 m. The framework consists of mostly live corals with a total area of about 10 m and the length of the individual coral branches range from 12 to 30 cm. Although E.

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This study reports the levels of total arsenic and arsenic species in marine biota such as clams (Meretrix meretrix; N=21) and pearl oyster (Pinctada radiata; N=5) collected from nine costal sites in Jan 2014, and cuttlefish (Sepia pharaonis; N=8), shrimp (Penaeus semisulcatus; N=1), and seven commercially important finfish species (N=23) collected during Apr-May 2013 from seven offshore sites in the western Arabian Gulf. Total As and As species such as dimethylarsinic acid (DMA), arsenobetaine (AB), trimethylarsine oxide (TMAO), arsenocholine (AC), tetramethylarsonium ion (Tetra), arsenosugar-glycerol (As-Gly) and inorganic As (iAs) were determined by using ICPMS and HPLC/ICPMS. In bivalves, the total As concentrations ranged from 16 to 118mg/kg dry mass; the toxic iAs fraction contributed on average less than 0.

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