Seasonal distribution of phytoplankton and its association with physico-chemical parameters in coastal waters of Malvan, west coast of India

The study on chemical properties in the conservation areas of Gilimanuk Bay, west coast of Bali was carried out in March 2006. The dissolved oxygen and degree of acidity (pH) in surface water were analyzed. The nutrients, consisting of phosphate, nitrate and ammonia concentrations in water were analyzed as well. In general all the chemical parameters were normal for coastal waters. Dissolved oxygen in this area was lower than those in Jakarta Bay and Panimbang waters, while the nutrient concentrations were lower compared to those of Cisadane Estuary, but higher compared to those of Mamberamo Waters. The fluctuations of pH, dissolved oxygen and other nutrients were influenced by the condition of surrounding area.

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Effect of thermal power plant effluent on the physico-chemical parameters of Thoothukudi coastal waters, South India

Indian Journal of Fisheries ◽

10.21077/ijf.2017.64.special-issue.76295-38 ◽

2017 ◽

Vol 64 ◽

Author(s):

Shelarpiyusha Suresh ◽

P. Padmavathy ◽

A. Srinivasan ◽

K. Karal Marx

Keyword(s):

Power Plant ◽

Coastal Waters ◽

Water Discharge ◽

Thermal Power ◽

Sediment Quality ◽

Chemical Parameters ◽

Discharge Point ◽

Water And Sediment ◽

Physico Chemical ◽

Water And Sediment Quality

The coolant water discharge area of a thermal power plant in Thoothukudi, Tamil Nadu was investigated to elucidate the changes in the coastal water and sediment quality characteristics. Water and sediment samples were collected from three different stations namely station I (about 900 m away from coolant water discharge point), station II (about 1250 m away from discharge point) and station III (about 1600 m away from discharge point) and analysed for the various physico-chemical parameters. The dissolved oxygen level increased with increasing distance from the discharge point i.e., from station I to III, whereas the temperature values showed decreasing trend. Concentration of ammonia, nitrite, nitrate and phosphate were found in the decreasing order from station I, II and III. Accumulation of heavy metals was in the order of Al > Fe > Cu > Zn in the water samples and found slightly higher than the standards prescribed by European countries. The exchangeable phosphorus fraction appeared as the first major contributor among the different fractions of total sedimentary phosphorus. This study clearly explains that the effluent discharge in adjoining coastal waters affects the water and sediment quality.

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Weight-length relationship, morphometric and meristic characters of the yellow seahorse Hippocampus kuda Bleeker, 1852 (Syngnathiformes: Syngnathidae) from central west coast of India

Indian Journal of Fisheries ◽

10.21077/ijf.2019.66.2.86769-15 ◽

2019 ◽

Vol 66 (2) ◽

Author(s):

H.B. Pawar ◽

S.V. Sanaye ◽

R.A. Sreepada ◽

B.S. Ingole

Keyword(s):

West Coast ◽

Coastal Waters ◽

Biological Information ◽

Allometric Relationship ◽

Meristic Characters ◽

Male And Female ◽

West Coast Of India ◽

Length Relationship ◽

Hippocampus Kuda ◽

Conservation And Management

Eighteen morphometric and five meristic characters of the yellow seahorse, Hippocampus kuda inhabiting the coastal waters of Ratnagiri, central west coast of India, were studied. Morphometric/numerical analysis confirmed the identity of the species from Ratnagiri coastal waters as Hippocampus Kuda Bleeker, 1852. A negative allometric relationship was observed in both genders of H. kuda. The estimated weight-length relationships (WLR) for male and female specimens, respectively were, W=0.0034 SL2.8533 and W=0.0078 SL2.5253 (r2>0.95). The biological information on morphometric and meristic characters, WLR and length-length relationship (LLR) provided in this study would be helpful for conservation and management of this vulnerable seahorse species.

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