World Status, Exploitation and Trade - WIDECAST

MALAYSIA1982a), these were presumably foraging turtles since no nesting appears tooccur there.,Table 116. Egg harvest on Pulau Selingaan, P. Bakkungan Kecil andP. Gulisaan. Data up to 1978 are from de Silva (1982) and for 1979-1985from de Silva ( in litt . . 3 September 1986); 1976 data are omitted becausethey are said to be inaccurate (the eggs having been removed by ForestDepartment staff), and most pre-1965 data are similarly omitted as "scantyand unreliable" (de Silva, 1969a). The reported 1947 yield (de Silva, 1984)is given for comparative purposes. Chan Kng-Heng ( in litt. . 1 August 1988)provided the data for 1986 and for the numbers of turtles tagged.Year Total egg harvest C. mydasnestsC. mydastagged1947196519661967196819691970197119721973197419751977197819791980198119821983198419851986706 960475 450365 430677 275298 797650 330539 593459 700406 059510 272368 430380 294311 941322 102387 228333 251285 853302 383234 873297 195248 628242 8132978224328862457259913491035152312681699Migration More than 16 000 females have been tagged on the turtle islandrookeries since 1970; only 14 international recoveries have so far beenreported, nearly all C. mydas (de Silva, 1986, in press). Two taggedturtles were recaptured in Indonesia - at Kai Kecil (in Kai group, easternMoluccas) and Cempedek Island (south-east Sulawesi), distances of 1556 and1305 km, respectively. The remainder were recorded in the Philippines,mainly around the central islands.The following tag records are of interest in demonstrating intra-islandgroup nesting shifts, although they are not strictly migratory movements.One female tagged on P. Bakkungan Kecil nested there three times in 1979,once in 1980, and twice in 1982, but in 1983 shifted 38 km to nest on Baguanin Philippines territory. Similarly, a female tagged originally whilenesting on 5 June 1983 on Bakkungan Kecil, returned to nest again on 17 July308