Copepod community structure during upwelling and non-upwelling seasons in coastal waters off Cochin, southwest coast of India

Job N Jemi; Mohamed Hatha A. A.

doi:10.1007/s13131-019-1491-6

Copepod community structure during upwelling and non-upwelling seasons in coastal waters off Cochin, southwest coast of India

doi: 10.1007/s13131-019-1491-6

School of Marine Sciences, Cochin University of Science and Technology, Cochin 682016, India

计量
- 文章访问数: 324
- HTML全文浏览量: 52
- PDF下载量: 121
- 被引次数: 0
出版历程
- 收稿日期: 2018-05-04

Copepod community structure during upwelling and non-upwelling seasons in coastal waters off Cochin, southwest coast of India

School of Marine Sciences, Cochin University of Science and Technology, Cochin 682016, India

摘要

摘要: Vypeen, an island of Cochin estuarine system, acts as the spawning site of several marine and estuarine fishes. We assumed that, physical process (upwelling) make changes in hydrography and the production of chlorophyll a in coastal waters off Vypeen. These alterations can influence the zooplankton abundance and copepod community structure in that area. For justifying this hypothesis, samples were collected from Vypeen at 10 m and 30 m locations during January (pre-southwest monsoon), August (late-southwest monsoon) and November (post-southwest monsoon) 2014. During August, subsurface water column was cool, nutrient rich and less oxygenated (signatures of upwelling) than in November and January. Maximum concentrations of nitrate and chlorophyll a were recorded during August. In the present study, 15 zooplankton groups were recorded; of which copepods were the most predominant group (73%-90%). Copepod density in the present study ranged between 527.2 ind./m³ and 5 139.2 ind./m³. Totally, 37 copepods species were reported in present study and copepod species richness was higher during January. The abundance of zooplankton and copepods was high in August during late-southwest monsoon. These variations were closely associated with the coastal upwelling in August and weakening of moderate upwelling in November. In SIMPER analysis, it was found that the copepods species distribution was similar within season and dissimilar between the three seasons. Moreover, the higher abundance of upwelling indicator species Temora turbinata was recorded in August, which confirms the signs of seasonal upwelling in Vypeen. The present study emphasized on the influence of hydrographical parameters associated with physical process, in governing the copepod community organization of the Vypeen Island.
- copepods /
- community /
- multivariateanalysis /
- monsoon /
- Temoraturbinata /
- upwelling /
- zooplankton
Abstract: Vypeen, an island of Cochin estuarine system, acts as the spawning site of several marine and estuarine fishes. We assumed that, physical process (upwelling) make changes in hydrography and the production of chlorophyll a in coastal waters off Vypeen. These alterations can influence the zooplankton abundance and copepod community structure in that area. For justifying this hypothesis, samples were collected from Vypeen at 10 m and 30 m locations during January (pre-southwest monsoon), August (late-southwest monsoon) and November (post-southwest monsoon) 2014. During August, subsurface water column was cool, nutrient rich and less oxygenated (signatures of upwelling) than in November and January. Maximum concentrations of nitrate and chlorophyll a were recorded during August. In the present study, 15 zooplankton groups were recorded; of which copepods were the most predominant group (73%-90%). Copepod density in the present study ranged between 527.2 ind./m³ and 5 139.2 ind./m³. Totally, 37 copepods species were reported in present study and copepod species richness was higher during January. The abundance of zooplankton and copepods was high in August during late-southwest monsoon. These variations were closely associated with the coastal upwelling in August and weakening of moderate upwelling in November. In SIMPER analysis, it was found that the copepods species distribution was similar within season and dissimilar between the three seasons. Moreover, the higher abundance of upwelling indicator species Temora turbinata was recorded in August, which confirms the signs of seasonal upwelling in Vypeen. The present study emphasized on the influence of hydrographical parameters associated with physical process, in governing the copepod community organization of the Vypeen Island.
- copepods /
- community /
- multivariate analysis /
- monsoon /
- Temora turbinata /
- upwelling /
- zooplankton

HTML全文

参考文献(36)

Bhattathiri P M A, Pant A, Sawant S, et al. 1996. Phytoplankton production and chlorophyll distribution in the eastern and central Arabian Sea in 1994-1995. Current Science, 71(11):857-862

Clarke K R, Gorley R N, 2006. PRIMER V6:User manual/tutorial. Plymouth:PRIMER-E Ltd., Plymouth Marine Laboratory

Clarke K R, Warwick R M. 2001. Changes in marine communities:An approach to statistical analysis and interpretation. Plymouth:PRIMER-E Ltd, Plymouth Marine Laboratory

Cleetus R I, Asha C V, Suson P S, et al. 2016. Mesozooplankton abundance and community structure in Vembanad-kol wetland ecosystem, Kerala, India. Indian Journal of Geo-Marine Sciences, 45(4):533-545

Conway D V P, White R G, Hugues-Dit-Ciles J, et al. 2003. Guide to the coastal and surface zooplankton of the south western Indian Ocean. Occasional Publication No. 15. Defra, UK:Marine Biological Association of the United Kingdom

Fernandes V, Ramaiah N. 2009. Mesozooplankton community in the Bay of Bengal (India):spatial variability during the summer monsoon. Aquatic Ecology, 43(4):951-963, doi: 10.1007/s10452-008-9209-4

Gerson V J, Madhu N V, Jyothibabu R, et al. 2014. Oscillating environmental responses of the eastern Arabian Sea. Indian Journal of Geo-Marine Sciences, 43(1):67-75

Goswami S C, Padmavati G. 1996. Zooplankton production, composition and diversity in the coastal waters of Goa. Indian Journal of Geo-Marine Sciences, 25(2):91-97

Grasshoff K, Ehrhardt M, Kremling K. 1983. Methods of Seawater Analysis. Weinheim:Verlag Chemie, 89-224

Haugen V E, Johannessen O M, Evensen E. 2002. Mesoscale modeling study of the oceanographic conditions off the Southwest coast of India. Journal of Earth System Science, 111(3):321-337, doi: 10.1007/BF02701978

Jagadeesan L, Jyothibabu R, Anjusha A, et al. 2013. Ocean currents structuring the mesozooplankton in the Gulf of Mannar and the Palk Bay, Southeast coast of India. Progress in Oceanography, 110:27-48, doi: 10.1016/j.pocean.2012.12.002

Jagadeesan L, Jyothibabu R, Arunpandi N, et al. 2017. Dominance of coastal upwelling over Mud Bank in shaping the mesozooplankton along the southwest coast of India during the Southwest Monsoon. Progress in Oceanography, 156:252-275, doi: 10.1016/j.pocean.2017.07.004

Jeyaraj N, Joseph S, Arun, et al. 2014. Distribution and abundance of zooplankton in estuarine regions along the northern Kerala, Southwest coast of India. Ecologia, 4(2):26-43, doi: 10.3923/ecologia.2014.26.43

Kasturirangan L R. 1963. A key for the identification of the more common planktonic copepoda of Indian coastal waters. In:Panikkar N K, ed. Indian National Committee on Oceanic Research. New Delhi:Council of Scientific and Industrial Research, 1-87

Keister J E, Tuttle L B. 2013. Effects of bottom-layer hypoxia on spatial distributions and community structure of mesozooplankton in a sub-estuary of Puget Sound, Washington, U.S.A. Limnology and Oceanography, 58(2):667-680, doi: 10.4319/lo.2013.58.2.0667

Madhupratap M. 1978. Studies on the ecology of zooplankton of Cochin Backwaters. Mahasagar-Bulletin of the National Institute of Oceanography, 11:45-46

Madhupratap M. 1979. Distribution, community structure and species succession of copepods from Cochin Backwaters. Indian Journal of Geo-Marine Sciences, 8(1):1-8

Madhupratap M, Gopalakrishnan T C, Haridas P, et al. 2001. Mesozooplankton biomass, composition and distribution in the Arabian Sea during the Fall Intermonsoon:Implications of oxygen gradients. Deep Sea Research Part II:Topical Studies in Oceanography, 48(6-7):1345-1368

Madhupratap M, Nair S R S, Haridas P, et al. 1990. Response of zooplankton to physical changes in the environment:Coastal upwelling along the central west coast of India. Journal of Coastal Research, 6(2):413-426

Margalef D R. 1968. Perspectives in Ecological Theory. Chicago:University of Chicago Press

Pielou E C. 1969. Introduction to Mathematical Ecology. New York:Wiley-Interscience

Postel L, Fock H, Hagen W. 2000. Biomass and abundance. In:Harris R P, Wiebe P H, Lenz J, et al., eds. ICES Zooplankton Methodology Manual. London:Academic Press, 193-213

Rajagopalan M S, Thomas P A, Mathew K J, et al. 1992. Productivity of the Arabian Sea along the Southwest coast of India. Bulletin of the Central Marine Fisheries Research Institute, 45:9-37

Rakhesh M, Raman A V, Kalavati C, et al. 2008. Zooplankton community structure across an eddy-generated upwelling band close to a tropical bay-mangrove ecosystem. Marine Biology, 154(6):953-972, doi: 10.1007/s00227-008-0991-2

Rakhesh M, Raman A V, Sudarsan D. 2006. Discriminating zooplankton assemblages in neritic and oceanic waters:A case for the northeast coast of India, Bay of Bengal. Marine Environmental Research, 61(1):93-109, doi: 10.1016/j.marenvres.2005.06.002

Robin R S, Srinivasan M, Chandrasekar K. 2009. Distribution of zooplankton from Arabian Sea, along Southern Kerala (Southwest coast of India) during the cruise. Current Research Journal of Biological Sciences, 1(3):155-159

Sell D W, Evans M S. 1982. A statistical analysis of subsampling and an evaluation of the Folsom plankton splitter. Hydrobiologia, 94(3):223-230, doi: 10.1007/BF00016403

Shannon C E, Weaver W. 1963. The Mathematical Theory of Communication. Urbana, Illinois:University of Illinois Press, 1-117

Shivaprasad A, Vinita J, Revichandran C, et al. 2013. Seasonal stratification and property distributions in a tropical estuary (Cochin estuary, West coast, India). Hydrology Earth System Science, 17(1):187-199, doi: 10.5194/hess-17-187-2013

Smitha A, Joseph K A, Jayaram C, et al. 2014. Upwelling in the Southeastern Arabian Sea as evidenced by Ekman mass transport using wind observations from OCEANSAT-II scatterometer. Indian Journal of Geo-Marine Sciences, 43(1):111-116

Sooria P M, Jyothibabu R, Anjusha A, et al. 2015. Plankton food web and its seasonal dynamics in a large monsoonal estuary (Cochin Backwaters, India)-significance of mesohaline region. Environmental Monitoring and Assessment, 187(7):427, doi: 10.1007/s10661-015-4656-6

Srichandan S, Panda C R, Rout N C. 2014. Summer distribution of zooplankton in coastal waters of Odisha, East coast of India. International Journal of Oceanography and Marine Ecological System, 3(1):9-25, doi: 10.3923/ijomes.2014.9.25

Tranter D J, Abraham S. 1971. Coexistence of species of Acartiidae (Copepoda) in the Cochin Backwater, a monsoonal estuarine lagoon. Marine Biology, 11(3):222-241, doi: 10.1007/BF00401271

UNESCO. 1994. Protocols for the Joint Global Ocean Flux Study (JGOFS). Core Measurements, IOC Manuals and Guides, Vol 29. Paris:UNESCO, 170

Varghese M, Krishnan L. 2009. Distribution of zooplankton in selected centres of Cochin backwaters, Kerala. Journal of the Marine Biological Association of India, 51(2):194-198

Vineetha G, Madhu N V, Kusum K K, et al. 2015. Seasonal dynamics of the copepod community in a tropical monsoonal estuary and the role of sex ratio in their abundance pattern. Zoological Studies, 54:54, doi: 10.1186/s40555-015-0131-x

施引文献

资源附件(0)

访问统计

点击查看大图

计量

文章访问数: 324
HTML全文浏览量: 52
PDF下载量: 121
被引次数: 0

Copepod community structure during upwelling and non-upwelling seasons in coastal waters off Cochin, southwest coast of India

doi: 10.1007/s13131-019-1491-6

计量

出版历程

Copepod community structure during upwelling and non-upwelling seasons in coastal waters off Cochin, southwest coast of India

计量

出版历程

目录