Department of Marine Sciences, Fishery and Marine Science Faculty, University of Papua, Indonesia
BibTex Citation Data :
@article{IK.IJMS43052, author = {Muhammad Insani and Ridwan Sala and Duaitd Kolibongso}, title = {Some Aspects of Bio-ecology of Walking Shark (Hemiscyllium galei) in Doreri Bay, Manokwari, Indonesia}, journal = {ILMU KELAUTAN: Indonesian Journal of Marine Sciences}, volume = {27}, number = {3}, year = {2022}, keywords = {abundance; meristic; length-weight relationship; growth; endemic species}, abstract = { Walking sharks are endemic to the New Guinea-Australian region, inhabiting shallow reef ecosystems. In Papuan waters there are four species of walking sharks, including Hemiscyllium galei . This research investigated ecological and biological aspects of H. galei in Doreri Bay near Manokwari, West Papua Province. The samples used in this study were collected from two locations in the waters of Doreri Bay, namely the islands of Arowi and Nusmapi between September and November 2020. This research was conducted using underwater visual census (UVC) during nighttime. Observations were made at two locations covering a total area 9,000 m 2 . A total of 10 individuals (7 males and 3 females) of H. galei were collected during the study. They were identified as distinct individuals based on spot shapes on the pectorals. All of them were then measured their morphometric parameters including total length, precaudal-fin length, head length, and body weight. After measurements were taken, all individual sharks were safely released back into their habitat. Morphometric measurements showed the total length of individual walking sharks obtained was no more than 75 cm for both male and female individuals. The abundance estimates of H. galei at Arowi and Nusmapi were 13,33 ind.ha -1 and 8,88 ind.ha -1 respectively. Analysis of length-weight relationship showed a negative allometric growth pattern, where body length growth was faster than weight gain. Based on the present study, walking sharks probably occupies only a limited area in Doreri Bay, and are therefore very vulnerable to the daily activities of humans living in the vicinity. }, issn = {2406-7598}, pages = {279--284} doi = {10.14710/ik.ijms.27.3.279-284}, url = {https://ejournal.undip.ac.id/index.php/ijms/article/view/43052} }
Refworks Citation Data :
Walking sharks are endemic to the New Guinea-Australian region, inhabiting shallow reef ecosystems. In Papuan waters there are four species of walking sharks, including Hemiscyllium galei. This research investigated ecological and biological aspects of H. galei in Doreri Bay near Manokwari, West Papua Province. The samples used in this study were collected from two locations in the waters of Doreri Bay, namely the islands of Arowi and Nusmapi between September and November 2020. This research was conducted using underwater visual census (UVC) during nighttime. Observations were made at two locations covering a total area 9,000 m2. A total of 10 individuals (7 males and 3 females) of H. galei were collected during the study. They were identified as distinct individuals based on spot shapes on the pectorals. All of them were then measured their morphometric parameters including total length, precaudal-fin length, head length, and body weight. After measurements were taken, all individual sharks were safely released back into their habitat. Morphometric measurements showed the total length of individual walking sharks obtained was no more than 75 cm for both male and female individuals. The abundance estimates of H. galei at Arowi and Nusmapi were 13,33 ind.ha-1 and 8,88 ind.ha-1 respectively. Analysis of length-weight relationship showed a negative allometric growth pattern, where body length growth was faster than weight gain. Based on the present study, walking sharks probably occupies only a limited area in Doreri Bay, and are therefore very vulnerable to the daily activities of humans living in the vicinity.
Article Metrics:
Last update:
Last update: 2024-11-06 11:03:55
Copy this form and after filling it, please send it to ijms@live.undip.ac.id:
COPYRIGHT TRANSFER STATEMENT
When this article is accepted for publication, its copyright is transferred to ILMU KELAUTAN Indonesian Journal of Marine Sciences, UNDIP. The copyright transfer covers the non exclusive right to reproduce and distribute the article, including reprints, translations, photographic reproductions, microform, electronic form (offline, online) or any other reproductions of similar nature.
The author warrants that this article is original and that the author has full power to publish. The author signs for and accepts responsibility for releasing this material on behalf of any and all co-authors. In regard to all kind of plagiarism in this manuscript, if any, only the author(s) will take full responsibility. If the article is based on or part of student’s skripsi, thesis or dissertation, the student needs to sign as his/her agreement that his/her works is going to be published.
Title of article :...........................................................................................................................Name of Author(s) :...........................................................................................................................Author’s signature :...........................................................................................................................Date :...........................................................................................................................
cipung138
diana4d
slot gacor
slot
12Djarum
View My Stats
rajajp188
klikjp
https://klik4dx.id/
raffi88
mawar4d
bangbos
mpo1212
scatter hitam
22crown