Dear Colleagues,
We are delighted to share with all of you our last study on the ecology of
Indian Ocean humpback dolphins in the Northern Persian Gulf published in the
European Journal of Wildlife Research.
Title: Abundance estimation, group dynamics, and residence patterns of Indian
Ocean humpback dolphin (Sousa plumbea) in the Dayer‑Nakhiloo Marine National
Park, Northern Persian Gulf, Iran
Authors: Nazanin Mohsenian, Séverine Methion, Hamed Moshiri, Shadi Karbalaei
Hassan, Shaghayegh Afkhami, Mohammad Amin Tollab, Mahmod Sadeh, Gill T.
Braulik, Bruno Díaz López
AbstractThe Persian Gulf is positioned in the heart of the Middle East as one
of the most critical water bodies. Indian Ocean humpback dolphins (Sousa
plumbea) are distributed in nearshore waters and are therefore highly
vulnerable to a variety of anthropogenic pressures. To our knowledge, there is
a little information and data available about habitat use and abundance of this
endangered species in Iranian waters. In the present study, baseline data about
population size and site fidelity of Indian Ocean humpback dolphins in the
Dayer-Nakhiloo Marine National Park in Northern Persian Gulf, Iran, has been
explored for the first time. From March 2014 to December 2018, 127 boat-based
surveys and 6436 km of survey effort were conducted. Overall, 127 groups of
humpback dolphins were observed on 62% of the surveys. Humpback dolphin group
size ranged from 1 to 14 individuals (mean 5.8 ± SE 0.3). Abundance estimates
were calculated and fitted with open population models. Thirty (95% CI 22–38)
humpback dolphins were estimated to inhabit the study area. There was a lack of
seasonality in the occurrence of humpback dolphins and strong site fidelity
within the Dayer-Nakhiloo Marine National Park. Most of the identified
individuals used the study zone regularly (79.5%), while a smaller number were
present less often. The results of this study provide important baseline
information about humpback dolphin ecology in an area subject to significant
anthropogenicpressures which can help to take effective conservation and
management measures.
Journal Reference:
Mohsenian, N., Methion, S., Moshiri, H., Hassan, S.K., Afkhami, S., Tollab,
M.A., Sadeh, M., Braulik, G.T. and Díaz López, B., 2022. Abundance estimation,
group dynamics, and residence patterns of Indian Ocean humpback dolphin (Sousa
plumbea) in the Dayer-Nakhiloo Marine National Park, Northern Persian Gulf,
Iran. European Journal of Wildlife Research, 68(2), pp.1-11. DOI:
https://doi.org/10.1007/s10344-022-01565-y
You can read the article here:
https://www.researchgate.net/publication/359005141_Abundance_estimation_group_dynamics_and_residence_patterns_of_Indian_Ocean_humpback_dolphin_Sousa_plumbea_in_the_Dayer-Nakhiloo_Marine_National_Park_Northern_Persian_Gulf_Iran
Please do not hesitate to ask for any question regarding our study or to
request a PDF copy of the article.
Kind regards,
Bruno Díaz López Ph.DChief biologist and Director
The Bottlenose Dolphin Research Institute BDRI - www.thebdri.comAvenida
Beiramar 192, O Grove 36980, Pontevedra, SpainTel. 0034 684248552
he/him/his
ResearchGate - GoogleScholar -https://orcid.org/0000-0002-0388-3289
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