Biodiversity and conservation status of mangrove forest, Sundarbans Biodiversity and conservation status of mangrove forest, Sundarbans Biodiversity and conservation status of mangrove forest, Sundarbans

1. Biodiversity and conservation status of
mangrove forest, Sundarbans
Sheikh Fahim Faysal Sowrav
sffsowrav@teachers.org

2. SUNDARBAN
• One of the largest mangrove forest
in the world
• In Bangladesh 599,330 ha
• About 60% of whole Sundarbans
• The Bangladesh part is at
21°38′10.18′′ and 22°29′51.65′′ N
and 89°02′22.87′′ & 89°53′13.93′′ E

3. PRESENT STATUS OF BANGLADSH SUNDARBANS
 Climate
 Hydrological regimes
 Effect of Farakka Barrage
on Salinity
 Water
 Tide
 Soil

4. Floral
Diversity
37 Families
65 Species
10 large trees
20 small trees
25 shurbs
10 hurbs
EXAMPLE:
Heritiera fomes, Excoecaria agalocha, Xylocarpus
mekongensis, X. granatum, Bruguiera
gymnorhiza, Sonneratia apetala, Avicennia
officinalis and Ceriops decundra.

5. Faunal
Diversity
1136 Wild Life
315 Birds
289 terrestrial
49 Mammals
59 Reptiles
11 cetaceans
16 Molluscs
670 acquatic species
210 Fishes
440 Royal Bengal Tiger

6. Food Chain

7. MAJOR ECONOMIC ACTIVITIES
Fishery
Agriculture
Timber and Wood
Bee Keeping
Honey and wax collection
Fishing
Prawn Seed collection
Non Timber forest products
Tannins ad Dyes
Eco tourism
Medical Plants

8. THREATS
• Natural disasters and manmade factors
• Oil pollution
• Coal-fired power plant
• Threats to carbon deposits
• Threats to plant communities
• Threats to animal communities
• Errosion and Accretion pattern in Sundarbans
• Disastrous cyclones of Sundarbans
• Global warming

9. CYCLONE BULBUL
• windspeed of Cyclone Bulbul was around 120-
130km/hr
• Flash Flood
• infrastructure worth Tk 62.58 lakh was damaged
• 4,002 trees worth Tk 41.73 lakh were damaged
• Bulbul damaged 587 trees worth around Tk 62,000
in Sundarbans (East Zone)

10. COSERVATION
• Sanctuaries
• Restricted fishing areas
• National Forest Policy
• Sundarbans, a natural wall

11. Bangladesh Sundarban Delta Vision 2050
The Bangladesh Sundarbans have been degraded by overexploitation up until
1989 and, to a great extent, due to low freshwater discharge eventually causing
salinity increase and erosion. These factors, along with sedimentation of water
courses, pollution from all sources, sea level rise, etc., have great potential for
causing serious damage to the delta. To safeguard the Bangladesh Sundarbans,
the “Vision 2050 for the Bangladesh Sundarban Delta” aims that: “by 2050,
the Sundarban Delta is rich in biodiversity and highly capable of extending
sufficient ecosystem goods and services, to provide sustained social, economic
and environmental benefits to the neighbouring communities, nation and
beyond, for present and future generations, under a changing climatic
scenario”

12. Thank you