Page 63 - CatalogNEP-LS

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 well-versed with the laws governing the use of freshwater systems, as well as the local,
state, federal, and international agencies that enforce these laws to protect endangered and
vulnerable species.
 Understand and apply relevant scientific principles in the area of aquatic biology and
educate others or work to conserve our natural resources.
 Realize impact of human activities on aquatic organisms.

THEORY(45 Hours)

UNIT-I: (15 Hours)

Aquatic Biomes: Brief introduction of the aquatic biomes: Freshwater ecosystem (lakes, wetlands,
streams andrivers),estuaries,intertidalzones,oceanicpelagiczone,marine benthic zone and coral
reefs.

UNIT-II: (15 Hours)
Freshwater Biology: Lakes: Origin and classification, Lake as an Ecosystem, Lakemorphometry,
Physico-chemical Characteristics: Light, Temperature, Thermal stratification, Dissolved Solids,
Carbonate, Bicarbonates, Phosphates and Nitrates, Turbidity; dissolved gases (Oxygen, Carbon
dioxide). Nutrient Cyclesin Lakes-Nitrogen, Sulphur and Phosphorous.
Streams: Differentstagesofstreamdevelopment, Physico-chemical environment, Adaptation of hill-
stream fishes.
UNIT-II: (15 Hours)

Marine Biology: Salinity and density of Seawater, Continental shelf, Adaptations of deep-
seaorganisms, Seaweeds. Management Of Aquatic Resources. Causes of pollution: Agricultural,
Industrial, Sewage, Thermal and Oil spills, Eutrophication, Management and
conservation(legislations), Sewage treatment Water quality assessment-BOD and COD.

PRACTICAL (30 Hours)

1. Determine the area of a lake using graphimetric and gravimetric method.
2. Identify the importantmacrophytes,phytoplanktonsandzooplanktons present in a lake
ecosystem.
3. Study of aquatic organisms - prawns, oysters, and fishes (any three) through museum
specimens in the laboratory with details on their classification, distribution, and
specialized features.
4. Determine the amount of Turbidity/transparency, Dissolved Oxygen, Free Carbon dioxide,
Alkalinity (carbonates&bicarbonates) in water collected from a nearby lake/waterbody.
5. Instruments used in limnology (Secchidisc, Van Dorn Bottle, Conductivity meter,
Turbidity meter, PONAR grab sampler) and their significance.
6. A Project Report on a visit to a Sewage treatment plant/Marinebio- reserve/Fisheries
Institutes.