Sosialisasi Konservasi Penyu Laut Berbasis Edukasi di SMPN 1 Desa Keude Panga Kecamatan Panga Kabupaten Aceh Jaya Provinsi Aceh

According to observation and interview that undertaken in Panga District Aceh Jaya Regency that there are 3 species of sea turtle with coastal line is 9.3. km. The third of such sea turtle including Olive ridley sea turtle(Lepidochelys olivacea), hawkbill sea turtle (Eremochelys imbricate), leatherback sea turtle (Dermochelys coriacea). The target of community that involved in socialization of sea turtle are student of junior high school. Earlier education to young generation regarding the important of sea turtle conservation educated-based is the effort for keeping sea turtle in natural with undertook the socialization to young generation in order to grow a caring and loving to sea turtle sustainablity. Coastal community still undertook to hunting sea turtle’s eggs for trading in the traditional market dan restaurants. It is caused by lack of understanding and awareness regarding sea turtle that threaten scarce. In this activity, the researcher will undertake persuasive approaach and solutive in changing a mindset of young generation gradually that inhabit in near nesting site. In this activity including suvey activity prior to socialization that near the nesting site, socialization activity in the SMPN 1 Panga that selected as target school in the socialization of Sea Turtle Conservation, conducting the retelling story games, and conducting hatchlings release programme to the sea with community elements.

MOBILE HOME FOR PHOLADOID BORING BIVALVES: FIRST EXAMPLE FROM A LATE CRETACEOUS SEA TURTLE IN HOKKAIDO JAPAN

ABSTRACT Trace fossils preserved in fossilized tissues provide a key resource for exploring the paleoecology of past ecosystems. Endobiont organisms are commonplace in modern ecosystems, but their trace fossils on vertebrates are rare as the organisms usually attack or attach to soft tissue. Here, we report the novel occurrence of flask-shaped boreholes representing the ichnotaxon Karethraichnus n. isp. in the carapace of the basal leatherback sea turtle Mesodermochelys sp. from the Upper Cretaceous of northern Japan. The distribution of the boreholes was determined by observing the carapace surface. Using X-ray computed tomography, we were also able to produce a 3D reconstruction of the whole carapace and examine a cross section of a borehole to analyze the histological aspects of the bone. In total, 43 holes were observed, 12 holes contained probable pholadoid bivalves, and 32 holes were not bored entirely through the carapace. Some of the bivalves found in the holes are larger than the aperture of the hole, suggesting that they continued to grow during boring. The holes are hemispherical to clavate in shape and developed on the exterior side of the carapace. Healing traces, i.e., repairing of bone, can be observed at the surface of the holes. Our observations strongly suggest that these pits were bored by pholadoid bivalves while the turtle was alive. This is the first report of the behavior of boring bivalves as sea-turtle endobionts boring into a unique free-living, i.e., “swimming substrate”.