Wholesale Jerseys Wholesale Jerseys China Cheap NFL Jerseys China Cheap NFL Jerseys Free Shipping Wholesale NHL Jerseys China Wholesale Jerseys From China Cheap NFL Jerseys Free Shipping Cheap NFL Jerseys For Sale Cheap Jerseys Free Shipping Wholesale NFL Jerseys From China Cheap NFL Jerseys Sale Cheap Nike NFL Jerseys China Wholesale Jerseys Free Shipping Cheap NFL Jerseys Wholesale Wholesale NFL Jerseys Online Cheap NFL Jerseys Wholesale China Jerseys Wholesale NFL Jerseys China Cheap Jerseys Free Shipping Cheap NFL Jerseys China
Wholesale Jerseys Wholesale Jerseys China Cheap NFL Jerseys China Cheap NFL Jerseys Free Shipping Wholesale NHL Jerseys China Wholesale Jerseys From China Cheap NFL Jerseys Free Shipping Cheap NFL Jerseys For Sale Cheap Jerseys Free Shipping Wholesale NFL Jerseys From China Cheap NFL Jerseys Sale Cheap Nike NFL Jerseys China Wholesale Jerseys Free Shipping Cheap NFL Jerseys Wholesale Wholesale NFL Jerseys Online Cheap NFL Jerseys Wholesale China Jerseys Wholesale NFL Jerseys China Cheap Jerseys Free Shipping Cheap NFL Jerseys China
Arts EntertainmentArts EntertainmentMusicMoviesTVArts ExhibitsPerforming ArtsReality TVCelebrityPop CultureAnimationYoung Adult FictionBooksMovie ReviewsComic BooksNewsNewsTop NewsInternational NewsStrange NewsScience SpacePoliticsElectionsEnvironmentExtreme WeatherGovernmentCrime CourtsBusiness Cheap NFL Jerseys China FinanceSameSex MarriageSmall BusinessStock MarketGun ControlGlobal WarmingPersonal FinanceDemocratRepublicanPolitical BuzzMarketing and PRImmigrationLeisureLeisureFood DrinkTravelSpa BeautyAutos MotorcyclesBars ClubsRecipesDrinksBudget TravelDIY MechanicAuto ReviewsNatural BeautyLuxury TravelMakeupHair NailsTechTechGadgets TechVideo GamesInternetTech Arts EntertainmentArts EntertainmentMusicMoviesTVArts ExhibitsPerforming ArtsReality Wholesale Jerseys From China TVCelebrityPop CultureAnimationYoung Adult FictionBooksMovie ReviewsComic BooksNewsNewsTop NewsInternational NewsStrange NewsScience SpacePoliticsElectionsEnvironmentExtreme ParentingHealth FitnessEducationReligion SpiritualityWeight Loss DietingWeddingsGardeningHome Cheap Jerseys Free Shipping SportsRecreational SportsCollege SportsGeneral SportsFantasy SportsMotorsportsHunting FishingHikingCampingRunningEquestrianWater SportsAction SportsEndurance SportsRecreation. Kobe Bryant, who plays for the Los Angeles Lakers basketball team, stands accused of raping a 19yearold college student in the Colorado town of Eagle on 30 June.Cheap Nike NFL Jerseys China The BBC's David Willis in Eagle says that although American sport and basketball in particular has seen its share of sex scandals there have been few, if any, to rival the Bryant case.10 Reasons Why Being Famous Isn't All That Greatby Fotinoula Gypsyy3 years ago Oklahoma City Thunder AllStar Kevin Durant took to Harlem last night to play a little ball. Apparently things went swimmingly.Wholesale NFL Jerseys Online Yeah, I know, who's really going to guard him out there, right? Say what you will, that's an impressive performance. Coach Outlet Coach Factory Outlet Coach Outlet Store Coach Handbags Outlet Coach Outlet Coach Factory Outlet Coach Outlet Coach Handbags Coach Site Michael Kors Outlet Michael Kors Handbags Outlet Cheap Michael Kors Michael Kors Outlet Michael Kors Handbags Outlet Cheap Michael Kors Michael Kors Outlet Michael Kors Handbags Outlet Cheap Michael Kors
go to SDMBRI page
go to SDMBRI page
go to SDMBRI page

HYDROLOGY

HOME
Location
Climate
Geomorphology
Rivers
Hydrology
Protection
    Biosphere Reserve
    Wildlife Sanctuary
    Project Tiger
Socio - Economy
    Demography
    Land Use
    Honey Collection
    Fishery
Culture
Travel
Threat
Eco - Development

FLORA
Phytoplankton
Algae
Mangroves
    True Mangroves
    Mangrove Associates
    Succession
    Forest Formation
    Threatened Mangroves
    Classification
Ecosystem
Utility

FAUNA
Zooplankton
Benthos
Oyster Beds
Nekton
Insects and Spiders
Reptiles
Birds
Mammals
Tiger of Sundarbans
Tiger Census
Man - Tiger Conflict
Endangered Species
Extinct Species
Biotech Values

SELECTED PAPERS

LINKS

CONTACTS

SITE MAP

  

  

WELCOME TO OUR WEBSITE

Hydrology

From hydrological angle the Hoogly-Matla estuarine complex can be subdivided into six zones, i.e., Zone (1) Sagor, Mahisini, Ghoramara, Lower Long Sand; Zone (2) Mahisini Island to the west and the Thakuran river to the east; Zone (3) The area between rivers Thakuran and Matla; Zone (4) The core area of the Sundarbans Tiger Reserve; Zone (5) The buffer zone of the Sundarban Tiger Reserve; Zone (4) The area north of Zone (5) lying to the east of Matla river (Chaudhuri and Choudhury, 1994).

The following hydro and hydro biological characteristics of Zone I were revealed in a survey by Dept. of Marine Science ,CU in 1984.

1.) Salinity And Inorganic Nutrients
From July to September, the water is slightly brackish as a result of the influx of fresh water brought about with the onset of the monsoon. During dry season (November to March) the fresh water flow reduce to one tenth that of the rainy season peak. During April, salinity varied from 25.9 to 1.62 ppt. from coastal parts to insides. During the monsoons, salinity of the coastal water decreased to 6.21 ppt due to the September influx of freshwater. Seasonal fluctuations in nutrients showed two peaks in nitrates, phosphate and silicate, one corresponding to the monsoon season and the other, comparatively smaller peak, corresponding to the late post monsoon and early pre monsoon season.

2.) Temperature And pH Of Surface Water
Wide fluctuation of surface water temperature has been observed in different seasons with lowest temperature of 20o C has been observed in winter months and up to 35o C in summer months. pH fluctuation although is not very high but a minimum variation may have deterministic effect on the biological community, with lowest value detected in monsoon months and highest value in drier months(February To April).

3.) Extinction Coefficient And Primary Productivity
The transparency of water is measured and the extinction coefficient (Kt) is calculated using the formula Kt =1.44/depth (in metres), applicable for turbid water. When the extinction coefficient is compared with gross primary productivity, and diversity index value of various communities an inverse relationship is found between them.

 



cheap nfl jerseys china cheap nfl jerseys free shipping wholesale nfl jerseys china wholesale jerseys from china cheap nfl jerseys free shipping cheap nfl jerseys for sale cheap jerseys free shipping wholesale nfl jerseys from china cheap nfl jerseys sale cheap nike nfl jerseys china wholesale jerseys free shipping cheap nfl jerseys wholesale wholesale nfl jerseys online cheap nfl jerseys wholesale china jerseys wholesale cheap coach handbags outlet authentic designer handbags cheap coach handbags outlet cheap coach purses outlet discount coach bags coach bags sale coach purse outlet cheap real coach purses coach handbags sale online coach purse outlet michael kors outlet online store cheap michael kors bags cheap michael kors purse michael kors factory outlet online cheap michael kors handbags cheap michael kors purses michael kors bags outlet online cheap michael kors purse michael kors handbags discount