Abstract
Distribution of chlorophyll pigments, carotenoids and abundance of phytoplankton in relation to certain environmental factors of the nearshore waters off the central west coast of India (latitudes 15°30′ to 18°30′N) were studied monthly at 7 stations during 1970/1971. Changes in the hydrographical factors and the biological processes occurring in the region during different months appear to be influenced by the pattern of upwelling along the northern and southern parts of the west coast of India. The pigment concentration shows a marked decrease in October, but is followed by a slow but steady rise, which reaches its maximum in April/May. A slightly smaller maximum is noticed in December/January. The composition of various chlorophyll pigments and carotenoids indicated the physiological state of phytoplankton populations during different months in the region investigated. Abundance of specific phytoplanktonic elements, consisting mainly of diatoms, in space and time, characterises the waters of the central west coast of India, indicating a clear succession of species.
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Literature Cited
Bal, D. V. and L. B. Pradhan: Progress report on investigations of fish eggs and larvae from Bombay waters during 1944–45. Bombay: Govt. Printing Press 1946.
Banse, K.: On upwelling and bottom trawling off the south west coast of India. J. mar. biol. Ass. India 1, 33–49 (1959).
Carruthers, J.N., S.S. Gogate, J. R. Naidu and T. Laevastu: Shorewards upslope of the layer of minimum oxygen off Bombay. Its influence on marine biology especially fisheries. Nature, Lond. 183, (4668), 1084–1087 (1959).
Dehadrai, P. V.: Observations on certain environmental features at the Dona Paula Point in Marmagoa Bay, Goa. Proc. Indian Acad. Sci. (Sect. B) 72 (2), 56–67 (1970).
George, P. C.: The marine plankton of the coastal waters of Calicut with observations on the hydrological conditions. J. zool. Soc. India 5, 76–107 (1953).
Gonzalves, E. A.: Variations in the seasonal composition of the phytoplankton of Bombay Harbour. Curr. Sci. 16 (10), 304–305 (1947).
Humphrey, G. F.: The concentration of chlorophylls a and c in the south-east Indian Ocean. Aust. J. mar. Freshwat. Res. 17, 135–145 (1969).
Jayaraman, R. and S. S. Gogate: Salinity and temperature variations in the surface waters of the Arabian Sea off the Bombay and Saurashtra coasts. Proc. Indian Acad. Sci. (Sect. B) 45 (4), 151–164 (1957).
— and G. Seshappa: Phosphorus cycle in the sea with special reference to tropical inshore waters. Proc. Indian Acad. Sci. (Sect. B) 46 (2), 110–125 (1957).
Ketchum, B. H., J. H. Ryther, C. S. Yentsch and N. Corwin: Productivity in relation to nutrients. Rapp. P-v. Reun, Cons. perm. int. Explor. Mer. 144, 132–140 (1958).
Panikkar, N. K. and R. Jayaraman: Biological and oceanographic differences between the Arabian Sea and Bay of Bengal as observed from Indian region. Proc. Indian Acad. Sci. (Sect. B) 64 (5), 231–240 (1966).
Ramamurthy, S.: Studies on the plankton of the north Kanara coast in relation to the pelagic fishery. J. mar. biol. Ass. India 7 (1), 127–149 (1965).
Ramasastry, A. A. and P. Myrland: Distribution of temperature, salinity and density in the Arabian Sea along the south Malabar Coast during the post-monsoon season. Indian J. Fish. 6, 223–255 (1959).
Rao, D. P. and R. Jayaraman: On the occurrence of oxygen maxima and minima in the upper 500 meters of the north-western Indian Ocean. Proc. Indian Acad. Sci. (Sect. B) 71 (6), 230–246 (1970).
Richards, F. A. with T. G. Thompson: The estimation and characterization of plankton population by pigment analysis. II A spectrophotometric method for the estimation of plankton pigments. J. mar. Res. 11, 156–172 (1952).
Selvakumar, R. A.: Cladoceran swarm in relation to mackerel fishery along the west coast of India. Curr. Sci. 39 (21), 481–482 (1970).
Strickland, J. D. H. and T. R. Parsons: A manual of sea water analysis. Bull. Fish. Res. Bd Can. 125, 1–203 (1965).
Subrahmanyan, R., and A. H. V. Sarma: Studies on the phytoplankton of the west coast of India. Part III. Seasonal variation of phytoplankton and environmental factors. Indian J. Fish. 7, 307–336 (1960).
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Communicated by N. K. Panikkar, Panaji
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Dehadrai, P.V., Bhargava, R.M.S. Distribution of chlorophyll, carotenoids and phytoplankton in relation to certain environmental factors along the central west coast of India. Marine Biology 17, 30–37 (1972). https://doi.org/10.1007/BF00346952
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DOI: https://doi.org/10.1007/BF00346952