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Journal : Jurnal Biosains Pascasarjana

SKELETON ANALYSIS OF THE CRANII REGION IN THE CASE OF DOLPHINS (Tursiops trucantus) STRANDED ON SENGGIGI BEACH WEST LOMBOK REGENCY Rahmawati, Septyana Eka; Munawaroh, Muhammad; Barmawi, Muhammad; Kholik; Riwu, Katty Hedriana Priscilia; wijaya, I Gusti Made Arjana
Jurnal Biosains Pascasarjana Vol. 26 No. 2 (2024): JURNAL BIOSAINS PASCASARJANA
Publisher : Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jbp.v26i2.2024.174-184

Abstract

Cetaceans are a group of marine mammals fully adapted to aquatic life including whales and dolphins. Dolphins belong to a group of marine animals known as Cetaceans that have evolved completely to live in water. In Indonesian waters, almost all cetacean species have been classified as protected biota. Many cetacean deaths have been linked to water pollution and underwater seismic activity. The bottlenose dolphin (genus Tursiop) is one of the most studied cetacean species due to its wide distribution in tropical and temperate waters and its friendly behavior towards humans. This research shows that the results of the size of the Tursiops truncatus bones in the Cranii section found on Senggigi Beach are different from the results of the size of the Cranii bones of Tursiops truncatus found on Korea's Jeju Island. In a review of literature written about the bones of the Tursiops truncatus species from Korea, Jeju Island. Each part of the Os Cranii on Tursiop truncatus found on Jeju Island, Korea has a very different size from the Tursiop truncatus found on Senggigi Beach which can be concluded that the size of the Os Cranii on Tursiops truncatus found on Jeju Island, Korea has the same size. larger than the size of Tursiops truncatus found on Senggigi Beach, West Lombok Regency. The cause of differences in bone size could be due to diet and habitat. A study on stable isotope analysis of marine mammals off the coast of Northwest Africa and unique trophic niches says mammalian bones reflect not only differences in trophic level but also shifts in foraging areas.
SKELETON ANALYSIS OF Tursiops truncatus REGIO COSTAE AND SCAPULA STRANDED ON SENGGIGI BEACH, WEST LOMBOK Qodri, Hasby faizul; Rahmawati, Septyana Eka; Riwu, Katty Hedriana Priscilia; Barmawi, Muhammad; Kholik
Jurnal Biosains Pascasarjana Vol. 26 No. 1 (2024): JURNAL BIOSAINS PASCASARJANA
Publisher : Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jbp.v26i1.2024.52-63

Abstract

The dolphin (Tursiops truncatus) is the most studied and most common species of cetacean in captivity. In this study, the size results obtained were the ribs and scapula. The first measure is a difference from the proximal to the distal end between the literature and this study. the second and third sizes have long, short, and longer proximal to distal differences. The fourth, fifth and sixth sizes show that the bones of T.truncatus are smaller than those of the Numataphocoena yamashitai species and the seventh size shows that the differences between T.truncatus and the Numataphocoena yamashitai species are several short and long costae. For the scapula, the dimensions of the first and second bones are larger than the present study species T.truncatus and Numataphocoena yamashitai. The sizes of the three results from this study are almost the same as the species Numataphocoena yamashitai except for the species Prosqualodon marplesi, which is larger than this study and research in California. The fourth size, which is 49.0 mm from head to tuberculum, is larger than the species T.truncatus and Numataphocoena yamashitai studied. The fifth size, the diameter of the rib head of this research species is smaller than the species Numataphocoena yamashitai and Prosqualodon marplesi, both of which are smaller than T.truncatus, and some of these differences are caused by food, habitat and environmental conditions.