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Sea Turtle Recovery Action Plan for Barbados - WIDECAST

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<strong>Barbados</strong> <strong>Sea</strong> <strong>Turtle</strong>s …<br />

Hawksbills are "spongivores" feeding on reef-associated sponges in the Caribbean<br />

region. Sponges contributed 95.3% of the total dry mass of all food items in digestive tract<br />

samples from 61 animals from seven Caribbean countries (Meylan, 1988). Specific feeding<br />

areas have not been identified in <strong>Barbados</strong>, but <strong>for</strong>aging is assumed to be more or less coincident<br />

with the distribution of coral reefs around the island (section 4.111). All size classes 23 cm<br />

straightline carapace length and larger are seen in <strong>Barbados</strong>' nearshore waters. The turtle fishery<br />

concentrates its ef<strong>for</strong>ts within the nesting season (May-October). At this time, entangling nets<br />

(20-30 cm mesh) typically 2.5-3.5 m deep and 20-150 m long are set close to shore where<br />

females are likely to be approaching and leaving beaches. Nets set within 100 yds of shore are<br />

illegal, but en<strong>for</strong>cement is problematic (sections 4.21, 4.22).<br />

The illegal killing of nesting hawksbills remains a problem, primarily because the penalty<br />

(Bds. $100) is insufficient and en<strong>for</strong>cement of the present legislation is difficult. In 1987, 22%<br />

of nestings reported by the general public resulted in the female being slaughtered. In addition,<br />

poaching of eggs occurred in approximately 15.2% of all reported nestings. In 1991, Bellairs<br />

Research Institute received in<strong>for</strong>mation on nesting by a total of fewer than 50 different turtles,<br />

and eight of these animals (>16%) were slaughtered. The habit of nesting on the highly<br />

developed west and south coast beaches has meant that hawksbills are also adversely affected by<br />

coastal development and beach erosion (see section 3.1). Jewelry and other items made from<br />

hawksbill shell are widely available in tourist-oriented shops and there is some export of shell to<br />

Japan (section 3.3).<br />

2.5 Lepidochelys kempii, Kemp's Ridley <strong>Sea</strong> <strong>Turtle</strong><br />

There are no records of Kemp's ridleys <strong>for</strong>aging or nesting in <strong>Barbados</strong>, nor would the<br />

species be expected to occur. With the exception of a single recapture from Caribbean<br />

Nicaragua of a "head-started" individual (Manzella et al., 1991), which may have displayed<br />

altered behavior due to having been held captive during its first year (Woody, 1991), Kemp's<br />

ridleys are confined to the Gulf of Mexico and temperate northern Atlantic. Unarguably the<br />

most endangered sea turtle in the world, the total adult population is thought to number no more<br />

than 900 females and an unknown number of males (Ross et al., 1989). Some 42,000 females<br />

were observed nesting in a single day at the primary rookery at Rancho Nuevo in 1947, whereas<br />

200-400 females nest annually today (Richard Byles, U. S. Fish and Wildlife Service, pers.<br />

comm.). The species nests almost exclusively in the state of Tamaulipas, Mexico.<br />

2.6 Lepidochelys olivacea, Olive Ridley <strong>Sea</strong> <strong>Turtle</strong><br />

There are no records of olive ridleys <strong>for</strong>aging or nesting in <strong>Barbados</strong>. However,<br />

occasional individuals may be expected in view of the occurrence of this species in Trinidad and<br />

Suriname. In the Western Atlantic, significant levels of nesting appear to occur only in<br />

Suriname, primarily at Eilanti Beach (Schulz, 1975). Olive ridleys nesting in Suriname have<br />

declined considerably in recent years, dropping from about 3,000 nests per year in the late 1960's<br />

to fewer than 500 nests per year today (Fretey, 1990). Diffuse nesting occurs in northwestern<br />

Guyana and in French Guiana (Reichart, 1989).<br />

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