WELCOME TO SEMINAR PAPER PRESENTATION

Title of the Seminar Paper

Impacts of Climate Change on Coastal Aquaculture in Bangladesh

Presented ByImran Hossain

MS Student, Department of AquacultureBSMRAU

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Contents

Introduction

Objectives

Materials and Methods

Review and Discussion

Conclusion

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Introduction

Climate

Climate change in coastal area 1. Sea level rise 2. Salinity intrusion

Effect of climate change in aquaculture

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Objectives

• To know the main effect of climate change on coastal region in Bangladesh,

• To know the impact of Climate related change on aquaculture in the context of Bangladesh,

• To know the mitigation and adaptive measure against climate change impact for the fisheries sector.

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Materials and Methods

A Review Paper

Information were collected from Various Books, Journals Proceedings, Articles, Reports Internet Browsing

Suggestions and valuable information

Compiled and arranged chronologically5

Review and Discussion

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Figure 1. The coastal zone of Bangladesh

Source: Islam et al., 20127

Fisheries resources in Bangladesh 3rd largest aquatic biodiversity

about 800 species

largest flooded wetland

Inland aquaculture production position is 4th

710 km long coastal belt

Continental shelf is about 37,000 Sq. Km. Source: FAO, 2012, 20168

Fisheries resources in Bangladesh EEZ is about 1,64,000 Sq. Km.

contributes 2.73 % of total export earnings and 4.39% to the GDP

22.76% of the total agricultural production & 60% of the total animal protein intake

Source: FAO, 2012, 20169

Indicators of climate change

Figure 2. Ten indicators for a warming world, Past Decade Warmest on Record

Source: NOAA, July 28, 201010

Table 1: Climate change scenarios for Bangladesh

Year Temperature Change

(oC) Mean

Precipitation Change (%)

Mean

Sea Level

Rise (cm)

Annual Dec-

Feb.

June-

Aug.

Annual Dec-

Feb.

June-Aug. Prediction

2030 1.0 1.1 0.8 5 -2 6 14

2050 1.4 1.6 1.1 6 -5 8 32

2100 2.4 2.7 1.9 10 -10 12 88

Source: Bernstein et al., 200711

Figure 3. Shows Increase Carbon Dioxide (CO2) level (1960-2007)

Source: NOAA, 200712

Figure 4. Sea level changes during 1970 to 2007

Source: Allison et al., 2009 13

Table 2. The area of the coastal area which supposed to inundate due to one (1) meter sea level rise

Region Area (%)

Khulna 65

Barisal 99

Patuakhali 100

Noakhali 44

Foridpur 12

Source: Bernstein et al., 200814

Table 3. Predicted changes in temperature and precipitation

Year Sea Level Rise

(cm.)

Temperature Rise (0C) Percentage of Changes in

Precipitation

2030 30 0.7 and 1.3 rises

respectively in monsoon

and winter

3% less in winter and 11

percent more in monsoon

2050 50 1.1 and 1.3 rises

respectively in monsoon

and winter

37% less in winter and 28

percent more in monsoon

Source: Mahmood et al., 199815

Figure 5. Number of cyclones making landfall on the coasts of Bangladesh each year from 1901 to 2009

Source: Murty et al., 201016

Figure 6. Salt water intrusion in coastal area

Source: Alam et al., 199917

Figure 7. Salinity zone area in Bangladesh

Source: Bernstein et al., 200718

Figure 8. Bleached brain coral

Source: NOAA 19

Figure 9. Coastal Impacts of Climate Change

Source: Bernstein et al., 200720

Figure 10. Migration of fish

Source: Bernstein et al., 200721

Figure 12. Climate change on fisheriesSource: Edward Allison et al., 200922

Future climate change strategy and action plan

• Bangladesh government is committed to strengthen the country’s resilience to climate change, reduce risks posed to national development; and development of the country along a low-carbon growth path.

• The Bangladesh Climate Change Strategy and Action Plan (BCCSAP) is a 10-year program (2009-2018).

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Conclusion

• Biodiversity of the coastal region is lost, shortage of fresh water, alteration of fish physiology , growth and behavior.

• Climate change has both positive and negative impacts on coastal aquaculture in Bangladesh, salinity intrusion into freshwater destroy the native species where as it also facilitates the shrimp farming.

• Different policies regarding environmental issues is essential in the coastal regions and awareness creating program should be conducted to overcome the adverse climatic situation

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Thank You All

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