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Short-term variability of water quality and its implications on phytoplankton production in a tropical estuary (Cochin backwaters—India)

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Abstract

Changes in the phytoplankton biomass (chlorophyll a), production rate, and species composition were studied over two seasons using the time series measurements in the northern limb of the Cochin estuary in relation to the prevailing hydrological conditions. The present study showed the significant seasonal variation in water temperature (F = 69.4, P < 0.01), salinity (F = 341.93, P < 0.01), dissolved inorganic phosphorous (F = 17.71, P < 0.01), and silica (F = 898.1, P < 0.01) compared to nitrogen (F = 1.646, P > 0.05). The uneven input of ammonia (3.4–224.8 μM) from upstream (Periyar River) leads to the inconsistency in the N/P ratio (range 6.8–262). A distinct seasonality was observed in Si/N (F = 382.9, P < 0.01) and Si/P (F = 290.3, P < 0.01) ratios compared to the N/P ratio (F = 1.646, P > 0.05). The substantial increase in chlorophyll a (average, 34.8 ± 10 mg m − 3) and primary production (average, 1,304 ± 694 mg C m − 3 day − 1) indicated the mesotrophic condition of the study area during the premonsoon (PRM) and it was attributed to the large increase in the population of nanoplankton (size < 20 μ ) such as Skeletonema costatum, Thalassiosira subtilis, Nitzschia closterium, and Navicula directa. In contrast, during the post monsoon (PM), low chlorophyll a concentration (average, 9.3 ± 9.2 mg m − 3) and primary production (average, 124 ± 219 mg C m − 3 day − 1) showed heterotrophic condition. It can be stated that favorable environmental conditions (optimum nutrients and light intensity) prevailing during the PRM have enhanced the abundance of the nanoplankton community in the estuary, whereas during the PM, the light limitation due to high turbidity can reduce the nanoplankton growth and abundance, even though high nutrient level exists.

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References

  • Ajith, J. K., & Balchand, A. N. (1996). Morphodynamic behaviour of a tropical coastal sea–inlet–estuary system. In Proceedings of the 8th international conference on physics of estuaries and coastal seas. Netherlands, pp. 42–43.

  • Balchand, A. N., & Nair, S. M. (1994). Studies on the fractionation of phosphates in the sediments of a tropical water way. Environmental Geology, 23, 284–294.

    CAS  Google Scholar 

  • Bushaw, K. L., Zepp, R. G., Tarr, M. A., Schulz-Janders, D., Bourbonniere, R. A., Hodson, R. E., Miller, W. L., Bronk, D. A., & Moran, M. A. (1996). Photochemical release of biologically available nitrogen from dissolved matter. Nature, 381, 404–407.

    Article  CAS  Google Scholar 

  • Cloern, J. E. (1987). Turbidity as a control on phytoplankton biomass and productivity in estuaries. Continental Shelf Research, 7, 1367–1381.

    Article  Google Scholar 

  • Cloern, J. E. (1996). Phytoplankton bloom dynamics in coastal ecosystems: A review with some general lessons from sustained investigation of San Francisco Bay, California. Reviews of Geophysics, 34, 127–168.

    Article  CAS  Google Scholar 

  • Cole, B. E., Thompson, J. K., & Cloern, J. E. (1992). Measurement of filtration rates by infaunal bivalves in a recirculating flume. Marine Biology, 113, 219–225.

    Article  Google Scholar 

  • CPCB (1996). Pollution potential of industries in coastal areas of India. Coastal Pollution Control Series COPOCS/9/1995–96, Central Pollution Control Board Report.

  • del Giorgio, P. A., Cole, J. J., & Cimbleris, A. (1997). Respiration rates in bacteria exceed phytoplankton production in unproductive aquatic systems. Nature, 385, 148–151.

    Article  Google Scholar 

  • Devassy, V. P., & Bhattathiri, P. M. A. (1974). Phytoplankton ecology of the Cochin backwater. Indian Journal of Marine Sciences, 3, 46–50.

    Google Scholar 

  • EEA (European Environment Agency) (1999). Nutrients in European ecosystems. Environment Assessment Report No. 4. EEA, Copenhagen. ISBN: 92-9167-163-0.

  • Fisher, T. R., Peele, E. R., Ammerman, J. W., & Harding, L. (1992). Nutrient limitation of phytoplankton in Chesapeake Bay. Marine Ecology Progress Series, 82, 51–63.

    Article  Google Scholar 

  • Franko, D. A., & Heath, R. T. (1982). UV-sensitive complex phosphorus: Association with dissolved humic material and iron in a bog lake. Limnology and Oceanography, 27, 564–569.

    Article  Google Scholar 

  • Gopinathan, C. P. (1972). Seasonal abundance of phytoplankton in the Cochin backwater. Journal of Marine Biological Association of India, 14(2), 568–577.

    Google Scholar 

  • Grasshoff, K., Ehrhardt, M., & Kremling, K. (1983). In K. Grasshoff, M. Ehrhardt, & K. Kremling (Eds.), Methods of sea water analysis (pp. 89–224). Weinheim: Verlag Chemie.

    Google Scholar 

  • Heip, C. H. R., Goosen, N. K., Herman, P. M. J., Kromkamp, J., Middelburg, J. J., & Soetaert, K. (1995). Production and consumption of biological particles in temperate tidal estuaries. Oceanography and Marine Biology: Annual Review, 33, 1–149.

    Google Scholar 

  • Joesph, K. J., & Kunjukrishna Pillai, V. (1975). Seasonal and spatial distribution of phytoplankters in Cochin backwater. Bulletin of the Department of Marine Science, University of Cochin, 7(1), 171–180.

    Google Scholar 

  • Jyothibabu, R., Madhu, N. V., Jayalakshmi, K. V., Balachandran, K. K., Shiyas, C. A., Martin, G. D., & Nair, K. K. C. (2006). Impact of fresh water influx on microzooplankton mediated food web in a tropical estuary (Cochin backwaters—India). Estuarine, Coastal and Shelf Science, 69, 505–518.

    Article  Google Scholar 

  • Madhu, N. V., Jyothibabu, R., Balachandran, K. K., Honey, U. K., Martin, G. D., Vijay, J. G., Shiyas, C. A., Gupta, G. V. M., & Achuthankutty, C. T. (2007). Monsoonal impact on planktonic standing stock and abundance in a tropical estuary (Cochin Backwaters—India). Estuarine Coastal and Shelf Science, 73, 54–64.

    Article  Google Scholar 

  • Madhupratap, M. (1987). Status and strategy zooplankton of tropical Indian estuaries: A review. Bulletin of Plankton Society of Japan, 34, 65–81.

    Google Scholar 

  • Martin, G. D., Vijay, V. J., Laluraj, C. M., Madhu, N. V., Joseph, T., Nair, M., Gupta, G. V. M., & Balachandran, K. K. (2008). Fresh water influence on nutrient stoichiometry in a tropical estuary, south west coast of India. Applied Ecology and Environmental Research, 6(1), 57–64.

    Google Scholar 

  • McLusky, D. S. (1971). Ecology of estuaries. London: Heinmann Educational Books. ISBN 0 435 61600 5.

    Google Scholar 

  • Menon, N. N., Balchand, A. N., & Menon, N. R. (2000). Hydrobiology of the Cochin backwater system—A review. Hydrobiologia, 430, 149–183.

    Article  CAS  Google Scholar 

  • Menzel, D. W., Hulbert, E. M., & Ryther, H. H. (1963). The effect of enriching the Sargasso seawater on production and species composition of the phytoplankton. Deep Sea Research, 10, 209–219.

    Google Scholar 

  • Miranda, J., Balachandran, K. K., Ramesh, R., & Wafar, M. (2008). Nitrification in Kochi backwaters. Estuarine Coastal & Shelf Science, 78, 291–300.

    Article  CAS  Google Scholar 

  • Neill, M. (2005). A method to determine which nutrient is limiting for plant growth in estuarine waters at any salinity. Marine Pollution Bulletin, 50, 945–955.

    Article  CAS  Google Scholar 

  • Parsons, T. R., Maita, Y., & Lalli, C. M. (1984). A manual of biological and chemical methods for seawater analysis (p. 173). Oxford: Pergamon.

    Google Scholar 

  • Peterson, D. H., & Festa, J. F. (1984). Numerical simulation of phytoplankton productivity in partially mixed estuaries. Estuarine Coastal & Shelf Science, 19, 563–589.

    Article  Google Scholar 

  • Qasim, S. Z. (2003). Indian estuaries (p. 259). Mumbai: Allied.

    Google Scholar 

  • Qasim, S. Z., Bhattathiri, P. M. A., & Abidi, S. A. H. (1968). Solar radiation and its penetration in a tropical estuary. Journal of Experimental Biology & Ecology, 2, 87–103.

    Article  Google Scholar 

  • Qasim, S. Z., Bhattathiri, P. M. A., & Devassy, V. P. (1972). The influence of salinity on the rate of photosynthesis and abundance of some tropical phytoplankton. Marine Biology, 12(3), 200–206.

    Article  Google Scholar 

  • Qasim, S. Z., & Sankaranarayanan, V. N. (1972). Organic detritus of a tropical estuary. Marine Biology, 15, 193–199.

    Article  CAS  Google Scholar 

  • Sankaranarayanan, V. N., & Qasim, S. Z. (1969). Nutrients of the Cochin backwater in relation to environmental characteristics. Marine Biology, 2(3), 236–247.

    Article  CAS  Google Scholar 

  • Shoji, D. T., Balachandran, K. K., Gupta, G. V. M., Madhu, N. V., & Shanta, N. (2008). Influence of allochthonous input on autotrophic–heterotrophic switch-over in shallow waters of a tropical estuary (Cochin Estuary), India. Estuarine Coastal & Shelf Science, 78, 551–562.

    Article  Google Scholar 

  • Sin, Y., Wetzel, R. L., & Anderson, I. C. (1999). Spatial and temporal characteristics of nutrient and phytoplankton dynamics in the York River Estuary, Virginia: Analyses of long-term data. Estuaries, 22, 260–275.

    Article  Google Scholar 

  • Srinivas, K., Revichandran, C., Maheswaran, P. A., Mohamed Asharaf, T. T., & Murukesh, N. (2003). Propagation of tides in the Cochin estuarine system, southwest coast of India. Indian Journal of Marine Sciences, 32(1), 14–24.

    Google Scholar 

  • Tomas, C. R. (1997). Identifying marine phytoplankton. USA: Academic.

    Google Scholar 

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Authors and Affiliations

  1. National Institute of Oceanography, Regional Centre, Kochi-18, India

    N. V. Madhu, K. K. Balachandran, G. D. Martin, R. Jyothibabu, Shoji D. Thottathil, Maheswari Nair, T. Joseph & K. K. Kusum

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  1. N. V. Madhu
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  2. K. K. Balachandran
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  3. G. D. Martin
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  4. R. Jyothibabu
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  5. Shoji D. Thottathil
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  6. Maheswari Nair
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  7. T. Joseph
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  8. K. K. Kusum
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Correspondence to N. V. Madhu.

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Madhu, N.V., Balachandran, K.K., Martin, G.D. et al. Short-term variability of water quality and its implications on phytoplankton production in a tropical estuary (Cochin backwaters—India). Environ Monit Assess 170, 287–300 (2010). https://doi.org/10.1007/s10661-009-1232-y

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  • DOI: https://doi.org/10.1007/s10661-009-1232-y

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