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THE COASTAL RESOURCES OF THE NORTHERN RANGE

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gabriel-reilly
16 diapositives · 343 Views · Nov 05, 2014

THE COASTAL RESOURCES OF THE NORTHERN RANGE. November 8-10, 2004 John Agard. WHAT COASTAL ENVIRONMENTS ARE IN INCLUDED?. Near-shore terrestrial: e.g. rocky and sandy shores. Intertidal: e.g. mangrove forests, ports and marinas Benthic:e.g. seagrass beds, coral reefs, soft bottom environments

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THE COASTAL RESOURCES OF THE NORTHERN RANGE
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  1. THE COASTAL RESOURCES OF THE NORTHERN RANGE November 8-10, 2004 John Agard

  2. WHAT COASTAL ENVIRONMENTS ARE IN INCLUDED? • Near-shore terrestrial: e.g. rocky and sandy shores. • Intertidal: e.g. mangrove forests, ports and marinas • Benthic:e.g. seagrass beds, coral reefs, soft bottom environments • Pelagic: e.g. fisheries

  3. MAJOR DRIVERS OF CHANGE WHICH AFFECT COASTAL RESOURCES OF THE NORTHERN RANGE • Urbanization on the coast which targets flat land for ports, houses, industry, hotels, recreation. • Pollution from land based sources especially sewage, litter • More efficient fish harvest technology e.g. long-lining, trawling, gill-netting

  4. SUMMARY OF CONDITION AND TRENDS IN COASTAL ECOSYSTEM SERVICES

  5. Mangrove Forests Size (ha) North Coast Scotland Bay<1 Maracas Bay25 Tyrico Bay1 Las Cuevas3 Yarra River1 Marianne River15 Grand Riviere1

  6. Size (ha) North East Coast  Matura River5 Salybia4  NorthWest Coast  Bayshore / Diego Martin River <1 Chaguaramas<1 Hart's Cut<1 Cuesa River<1 Mucurapo3 Sealots<1

  7. Mangrove Forests • Northern Range has about 60 ha of mangrove forests remaining and declining • Major driver is changes in coastal land use. • Tradeoffs: water purification, fish nurseries, coastal stability

  8. Beaches • According to IMA the north coast is less susceptible to erosion than other coastal areas, which consist of soft, friable sedimentary material. • The main problem reported is litter deposited by recreational users

  9. Seagrass • Patches of seagrass remaining at William’s Bay, Trinidad and Tobago Yacht Club and Salybia. • Trend: area of seagrass is stable.

  10. Coral Reefs • Small reefs exist at Toco and the five islands. • No recent assessments of condition done.

  11. FISH CATCHES

  12. FISH CATCHES

  13. ECONOMIC VALUE OF FISH CATCHES

  14. FISH CATCHES • According to Fisheries Division statistics, fish catches mainly landed at Maracas on the north coast, have increased 8 fold from about 50,000 kg in 1998 to 400,000 kg in 2001 worth about 2 million TT$. • The statistics do not include the significant fish catches which are landed in Venezeula.

  15. PROVISION OF SAFE AND NATURAL HARBOUR AT CHAGUARAMAS • 65 yachts 1990 increased to 2590 yachts by 1997. • US$ 340,00 per month spent by yachties. • 60 million TT$ invested in associated facilities. • 1300 full time and 145 part time jobs created in 1997.

  16. Water Quality • Sporadic studies of water quality indicate declining water quality at popular bathing beaches mainly due to increased sewage contamination. • IMA studies have established a link between bathing in sewage contaminated water and increased incidence of associated gastro-intestinal illnesses.