[MARMAM] New paper: A Rapid Assessment of the Marine Megafauna Biodiversity Around South Bali, Indonesia

Putu Mustika putu.liza at my.jcu.edu.au
Thu Jun 24 00:00:41 PDT 2021

Dear Colleagues,

On behalf of my co-authors, I am very pleased to present you our new paper, published today at the Frontiers in Marine Science on the marine megafauna (particularly the cetaceans) in south Bali.  The survey was conducted in Oct-Nov 2015 and the abstract and link are as follows.

sincerely yours,

Dr. Putu Liza Mustika (“Icha”)

https://doi.org/10.3389/fmars.2021.606998 <https://doi.org/10.3389/fmars.2021.606998> 

A Rapid Assessment of the Marine Megafauna Biodiversity Around South Bali, Indonesia

by Putu Liza Kusuma Mustika, Rob Williams, Hanggar Prasetio Kadarisman, Andri Oktapianus Purba, I Putu Ranu Fajar Maharta, Deny Rahmadani, Elok Faiqoh dan I Made Iwan Dewantama

A low-cost, small-boat, rapid assessment survey was conducted on the waters off the southern Peninsula of Bali. The objectives were: (1) to conduct an inventory of cetacean species in the study area; (2) to map cetacean distribution to inform the design of the Badung MPA; (3) to estimate relative abundance of cetaceans and record information on presence and distribution of other marine megafauna; and (4) to train observers in the use of distance sampling methods. The survey adopted a “training while doing” approach to build local capacity for marine biodiversity monitoring, while collecting a snapshot of data to assess species richness and distribution. The survey accomplished its first two objectives, but due to violation of underlying assumptions, had mixed success with the third objective. Our survey revealed that the waters off the southern Peninsula of Bali support a rich cetacean fauna, with at least seven cetacean species, other marine megafauna, and avian species. Seven cetacean species found on our survey include: spinner dolphin (Stenella longirostris), pantropical spotted dolphin (Stenella attenuata), Fraser’s dolphin (Lagenodephis hosei), Risso’s dolphin (Grampus griseus), bottlenose dolphin (Tursiops sp.), Bryde’s whale (Balaenoptera edeni), and sperm whale (Physeter macrocephalus). Density estimates were low for all whales combined, but seem implausibly high for dolphins; likely due to violation of assumptions of distance sampling methods. Future surveys should include sufficient time for training to generate reliable abundance estimates. A dedicated bycatch study is needed to understand sustainability of bycatch mortality relative to reliable abundance estimates.

Dr. Putu Liza Mustika (“Icha”)
putu.liza at my.jcu.edu.au
https://orcid.org/0000-0001-5157-4635 <https://orcid.org/0000-0001-5157-4635>
https://research.jcu.edu.au/portfolio/putu.liza/ <https://research.jcu.edu.au/portfolio/putu.liza/> 

College of Business, Law and Governance
James Cook University Australia
Townsville QLD Australia

Cetacean Sirenian Indonesia
Jakarta, Indonesia

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