Pollution in aquatic ecosystems poses significant threats to the health of these environments and the organisms that inhabit them. Various sources of pollution, including industrial discharge, agricultural runoff, urban runoff, and improper waste disposal, introduce harmful substances into water bodies, leading to a range of detrimental effects. Some common pollutants in aquatic ecosystems include: 1. Chemical pollutants: These can include heavy metals, pesticides, fertilizers, industrial chemicals, pharmaceuticals, and oil spills. These substances can disrupt aquatic ecosystems, harm aquatic organisms, and bioaccumulate through the food chain. 2. Nutrient pollution: Excessive inputs of nutrients such as nitrogen and phosphorus from fertilizers, sewage, and animal waste can lead to eutrophication, causing algal blooms, oxygen depletion, and harmful effects on aquatic life. 3. Plastic pollution: Plastics, including microplastics, pose a significant threat to aquatic ecosystems, as they persist in the environment for long periods, accumulate in aquatic organisms, and can cause physical harm and ingestion-related issues. 4. Thermal pollution: Discharge of heated water from industrial processes or power plants can elevate water temperatures, leading to thermal stress for aquatic organisms and disrupting ecosystem balance. 5. Sedimentation: Soil erosion and runoff from construction sites, agriculture, and deforestation can lead to increased sedimentation in water bodies, smothering aquatic habitats, and impairing water quality. The impacts of pollution in aquatic ecosystems are far-reaching and can include declines in biodiversity, disruptions to food webs, loss of ecosystem services, and threats to human health through contaminated drinking water and seafood consumption. Addressing pollution in aquatic ecosystems requires concerted efforts, including better regulation, pollution prevention measures, ecosystem restoration, and public awareness and education.

1. BIDHAN CHANDRA
KRISHI
VISWAVIDYALAYA
Presentation on Pollution in
aquatic ecosystem- Problems,
planning and management
ESDM 359 : Environmental
Studies & Disaster
Management

2. • Group members-
• Rahul Karmakar(Hort-18)
• Rakhshinda Akhtar(Hort-19)
• Saptarshi Nandi(Hort-21)
• Shilpa Singha(Hort-23)
• Silpa Mandal(Hort-24)

3. An aquatic ecosystem is an
ecosystem in a water body .
Aquatic ecosystems include
oceans, lakes, rivers,
streams, estuaries, and
wetlands. These ecosystems
are very fragile and can be
easily disturbed by pollution.
INTRODUCTION

4. TYPES OF AQUATIC ECOSYSTEM.
• 2. Freshwater ecosystems.
1. Marine ecosystems

5. There are three basic types of freshwater
ecosystems:
Lentic: slow moving water, including pools, ponds,
and lakes.
Lotic: faster moving water, for example streams
and rivers .
Wetlands: areas where the soil is saturated or
inundated for at least part of the time.

6. Wetland

7. Pollution in aquatic
ecosystems poses a
significant threat to
marine life and human
health.
POLLUTION IN AQUATIC ECOSYSTEM

8. FORMS OF POLLUTION
• CHEMICAL
• PLASTIC
• OIL
• NUTRIENT

9. • SEDIMENT
• THERMAL
• BIOLOGICAL
• RADIOACTIVE
FORMS OF POLLUTION

11. CAUSES OF AQUATIC POLLUTION
Industrial
Waste
Agricultural Oil spill
Waste
disposal

12. CAUSES OF AQUATIC POLLUTION
Sewage
disposal
Deforestation
and mining
Invasive
spices
Air borne

13. Impact on Aquatic
Ecosystem
Pollution disrupts the
ecosystem balance, leading to
adverse effects on marine
organisms. Toxic substances
and plastic waste can harm
aquatic organisms, leading to
population decline and
ecosystem degradation.

14. IMPACT OF POLLUTION
• BIODIVERSITY LOSS
• HABITAT DESTRUCTION
• ALTERED FOOD CHAIN
• OXYGEN DEPLETION
• HEALTH RISK FOR
HUMAN

15. IMPACT OF POLLUTION
• Economic consequences
• Loss of ecosystem services
• Bioaccumulation of toxins
• Desruption of reproductive
processes
• Global implication

16. ECONOMIC
IMPLICATIONS
Pollution in aquatic
ecosystems can have
significant economic
implications, including
reduced fisheries, tourism,
and increased healthcare
costs. Implementing
pollution control measures
is essential for sustainable
economic development.

17. MANAGEMENT OF AQUATIC POLLUTION
Integrated green
infrastructure, such as
vegetated buffer zones and
constructed wetlands, into
urban planning to reduce
stormwater runoff and
improve water quality.
Green
Infastructure

18. TECHNOLOGICAL
SOLUTIONS
Innovative technological
solutions such as water
treatment plants,
bioremediation, and
advanced monitoring
systems play a crucial
role in combating
pollution and restoring
the health of aquatic
ecosystems.

19. COMMUNITY
ENGAGEMENT
Engaging local communities in
pollution management and
conservation efforts is vital.
Education and awareness
programs can empower
individuals to take actions that
contribute to the protection of
aquatic environments.

21. International
Collaboration
Global cooperation and
partnerships are essential for
addressing pollution in aquatic
ecosystems.
International treaties and
collaborative research initiatives
can facilitate the exchange of
knowledge and resources for
effective management.

22. CASE STUDY
The Great Barrier Reef is
highly vulnerable. In the past
three decades, it has lost half
its coral cover, pollution has
caused deadly starfish
outbreaks, and global
warming has produced
horrific coral bleaching.
Coastal development also
looms as a major threat

23. CONCLUSION
Addressing pollution in aquatic
ecosystems requires a multi-
faceted approach, including
regulatory measures,
technological innovations,
community engagement, and
international collaboration.
By working together, we can
safeguard the health and
biodiversity of our water bodies
for future generations

24. REFERENCE
1. https://www.downtoearth.org.in/
2. https://fvwc.ca/our-work/watershed-planning/.
3. Clark, RB, (2001). Marine Pollution, OUP, (5th Ed)
4. Gray, JS & M Elliott (2009) Ecology of Marine sediments: science
to management, OUP (2nd Ed.).