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,

Icha
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.l...@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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