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Status of Coral Reefs of the World 2000

Status of Coral Reefs of the World 2000.pdf

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<strong>Status</strong> <strong>of</strong> <strong>Coral</strong> <strong>Reefs</strong> in <strong>the</strong> Eastern Caribbean<br />

8,500mt. There are 40,000 Caribbean traps around <strong>the</strong>se islands and about 20,000 are lost<br />

each year in Guadeloupe during <strong>the</strong> hurricane season. As <strong>the</strong>se are built with wire netting,<br />

<strong>the</strong>y continue to catch fish for months. The traditional fishery on Martinique includes 900<br />

pr<strong>of</strong>essional fisherman plus many non-<strong>of</strong>ficial fishermen, with 848 fishing boats in 1997. The<br />

total landing <strong>of</strong> 6,000mt is not enough to supply <strong>the</strong> local demand estimated at 16,000mt.<br />

There are even more traps (50,000) around <strong>the</strong> island. There was major fish mortality in<br />

September 1998 on <strong>the</strong> Atlantic coast <strong>of</strong> Martinique and dead reef fish from all trophic levels<br />

washed ashore, but <strong>the</strong>re were no obvious changes to <strong>the</strong> structure <strong>of</strong> <strong>the</strong> reef fish community.<br />

The Ne<strong>the</strong>rlands Antilles<br />

There are only approximately 20 commercial fishermen on Bonaire, although practically<br />

everyone ‘goes fishing’. Since commercial fishermen target pelagic fish species (tuna, dorado,<br />

wahoo) and fish predominantly with hook and line <strong>the</strong>ir impact on reef fish populations is<br />

negligible. Fish caught are generally consumed locally, only big eye scad may be exported to<br />

Curaçao. As a consequence reef fish are abundant and diverse and biomass is high.<br />

Artisanal fishing practices include hook and line fishing, some rod fishing, and <strong>the</strong> use <strong>of</strong><br />

kanasters (fish traps), trai (throwing nets) and reda (encircling nets). Spearguns and spears,<br />

although illegal, are still in sporadic use. Few fish traps are used on Bonaire’s reefs due to<br />

conflict with recreational divers. Throwing nets are used almost exclusively to catch bait fish<br />

and encircling nets are used to catch big eye scad. Target fish include grouper and<br />

snapper; parrotfish are not considered edible. Illegal poaching <strong>of</strong> turtle continues and may<br />

amount to as many as 20 turtles/month. Reef fish populations, however, do not appear to<br />

be adversely effected by fishing pressure at <strong>the</strong> current level, but an exception is conch<br />

which have been fished to <strong>the</strong> point <strong>of</strong> collapse. Collection for <strong>the</strong> aquarium trade is banned.<br />

ANTHROPOGENIC THREATS TO CORAL REEF BIODIVERSITY<br />

Most <strong>of</strong> <strong>the</strong> anthropogenic threats and impacts reported were common to most <strong>of</strong> <strong>the</strong><br />

islands represented here:<br />

• Increased sedimentation from shoreline development, <strong>of</strong>ten for tourism<br />

infrastructure, road construction, destruction <strong>of</strong> mangroves, and dredging. In <strong>the</strong><br />

BVI, even on <strong>the</strong> more remote islands with small populations and limited<br />

construction, grazing by feral goats has reduced vegetation cover resulting in<br />

erosion and sedimentation;<br />

• Eutrophication from <strong>the</strong> input <strong>of</strong> agricultural chemicals and sewage, resulting in<br />

proliferation <strong>of</strong> algae and increased turbidity;<br />

• Physical damage from yacht anchors and divers, although <strong>the</strong> rapid expansion in<br />

permanent mooring installation will greatly reduce this;<br />

• Over-fishing.<br />

In many cases, <strong>the</strong> common <strong>the</strong>me was a lack <strong>of</strong> enforcement <strong>of</strong> existing legislation to<br />

reduce <strong>the</strong>se impacts.<br />

In contrast, <strong>the</strong> major impacts on reefs in Montserrat were from massive volcanic eruptions,<br />

particularly in 1995 and 1996, which resulted in <strong>the</strong> deposition <strong>of</strong> large quantities <strong>of</strong> ash on<br />

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