Aquatic Microbiology by Asar Khan

Aquatic Microbiology

Asar Khan (M.Sc Zoology)

AWKUM Buner

INTRODUCTION Study of microorganisms and their communities

in water environment.

WATER MICROBIOLOGY the study of microorganisms in potable

or drinking water.

No pathogens No chemicals No taste No odor No color No harm to human health

AQUATIC ENVIRONMENTS(1) Marine Ecosystem plants and animals interact with the

chemical and physical features of the environment.

aquatic areas of life, They can be oceans, ponds , marshes, lagoons, or any area with water that supports life.

(2) Fresh Water Ecosystem

factors, including temperature , light penetration, and vegetation.

Only 3% of the world's

99% of this is either frozen in glaciers and pack ice or is buried in aquifers.

The remainder is found in lakes, ponds, rivers, and streams.

SCOPE wide and includes the habitats like Planktons live in water column incapable of swimming crucial source of food to

large aquatic organisms, such as fish and whales.

Benthos community of organisms which live on, in,

or near the seabed also used in freshwater biology food sources for the benthos are algae Organisms such as sea stars, oysters,clams,

sea cucumbers, brittle stars

Microbial mats a multi-layered sheet of microorganisms,

mainly bacteria and archaea. Temp from –40°C to 120°C industrial uses for water treatment

and for cleaning up pollution.

Biofilm group of microorganisms in which

cells stick to each other on a surface. 5 stages of development

Initial attachment: Irreversible attachment: Maturation I: Maturation II: Dispersion:

FOUND IN

lakes, rivers , streams, seas , rain, snow &

Groundwater.

NUTRIENT CYCLES IN AQUATIC ENVIRONMENTS

WATER-BORNE PATHOGENS Bacteria Virus Protozoa Helmiths Spirochete Rickettsia Algae

DISEASES CAUSE BY BACTERIA

Enteritis, diarrhea, and dysentery Campylobacter - Cholera Cholera - E. coli 0157:H Salmonella Shigella

Enteric fever Typhoid Paratyphoid

Paralysis Botulism

Eye, ear, and skin infections Miscellaneous bacteria

Urinary tract infections E. coli - Others

DISEASES CAUSES BY VIRUSES

Enteritis, diarrhea, and dysentery Rotavirus Norwalk

Flu like (liver damage) Hepatitis A Hepatitis E

Paralysis Polio

DISEASES CAUSES BY PROTOZOA

Giardia • Giardiasis

(beaver fever , inf GIT)

Cryptosporidium • Cryptosporidia

(short term intestine inf)

Amoeba • Amoebiasis, or Amebiasis

(GIT infection)

Round worm• Trichinosis• heartworm disease

Tape worm• Cysticercosis

Hook worm• Anemia

Whip worm• trichuriasis

DISEASES CAUSES BY HELMINTHES

Algae Mycrocystis Dinoflaggelates

oFungi Blastomycosis

Water-related diseases Malaria Schistosomiasis Yellow fever Dengue fever

OTHERS

removing undesirable chemicals, biological contaminants, suspended solids and gases from contaminated water.

WATER PURIFICATION

WATER PURIFICATION BUT HOW?

MEMBRANE ULTRAFILTRATION

WASTE WATER MANAGEMENT

SAVE WATER SAVE LIFE &SAVE THE WORLD

TH

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K YO

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