https://doi.org/10.82144/943fe73a https://seamap.env.duke.edu/dataset/2255 https://www.gbif.org/dataset/e06a1b90-cd95-4448-9413-2cfde0dd7330 https://obis.org/dataset/ba0a2d40-9df8-4017-9def-c0f6c2beb606 Mohammad Sadeghsaba Marine & Wetlands section, Department Of the Environment Primary contact m.sadeghsaba2@gmail.com OBIS-SEAMAP Marine Geospatial Ecology Lab, Duke University

A328 LSRC building Durham NC 27708 US

seamap-contact@duke.edu https://seamap.env.duke.edu OBIS-SEAMAP Marine Geospatial Ecology Lab, Duke University

A328 LSRC building Durham NC 27708 US

seamap-contact@duke.edu https://seamap.env.duke.edu distributor Mohammad Sadeghsaba Marine & Wetlands section, Department Of the Environment Primary contact m.sadeghsaba2@gmail.com owner 2025-07-31 eng Original provider: Mohammad Sadeghsaba Dataset credits: Marine & Wetlands Division, Department Of the Environment Abstract: The habitat specialist Indian Ocean humpback dolphin (Sousa plumbea) is the second most common cetacean in the Persian Gulf. Mousa Bay in the northwestern Persian Gulf is an important, but highly industrialised habitat for this species. We developed a systematic and comprehensive distance sampling survey carried out from 2014 to 2016 to estimate abundance and population density of humpback dolphin in this bay. To evaluate distribution pattern of the species, eight environmental variables were measured and employed in a zero-inflated generalised additive model (ZINB GAM). With an estimated abundance of 92 animals (64–131, 95% CI) and density of 0.123 animal / km2 (0.086–0.176, 95% CI), our results revealed Mousa Bay as one of the largest population of humpback dolphin in northern latitudes of its global range. Occurrence GBIF Dataset Type Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_type.xml Observation GBIF Dataset Subtype Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_subtype.xml Marine Biology Visual sighting Marine Animal Survey Marine mammals Visual Sighting Vessel N/A Observation time was not provided. Observations before and after the project implementation period (2014-2016) are also presented. Registered as part of the International Marine Mammal Area under the title "NORTHERN GULF AND CONFLUENCE OF THE TIGRIS, EUPHRATES, AND KURAN IMMA" This work is licensed under a Creative Commons Attribution Non Commercial (CC-BY-NC) 4.0 License. https://seamap.env.duke.edu/dataset/2255 Oceans,Iran,Khuzestan,Persian Gulf 48.7149 49.8632 30.4677 29.8727 2012-04-09 2022-09-09 Scientific names are based on the Integrated Taxonomic Information System (ITIS). species Balaenoptera edeni Eden's whale species Sousa plumbea Indian humpback dolphin - Studying the abundance, distribution and zoning of dolphin habitats in the coastal waters of Khuzestan - Collecting and producing information about the environmental, ecological, and human characteristics and the most important factors of threats and pressure on the humpback dolphin. - Obtaining demographic information of the species such as group size and proportion of newborns - Obtaining information on the abundance and probability of seeing the species in the study area for use in ecotourism purposes notPlanned Mohammad Sadeghsaba Marine & Wetlands section, Department Of the Environment Primary contact m.sadeghsaba2@gmail.com NA NA NA Mohammad Sadeghsaba owner NA zd_2255 2025-07-31T17:40:32-04:00 dataset Sadeghsaba, M. 2023. Population estimate and distribution pattern of Indian Ocean humpback dolphin in northwestern Persian Gulf. Version 1.0.0. Dataset published in OBIS-SEAMAP. https://doi.org/10.82144/943fe73a. OBIS-SEAMAP Dataset Page UTF-8 Interactive map https://seamap.env.duke.edu/dataset/2255 FGDC Metadata UTF-8 XML https://seamap.env.duke.edu/dataset/2255/fgdc EML Metadata UTF-8 XML https://seamap.env.duke.edu/dataset/2255/eml OBIS-SEAMAP zd_2255 zd_2255 Hemamia, M-R, M. Ahmadia, M. Sadegh-Sabab, Moosavi, S. M. H. 2018. Population estimate and distribution pattern of Indian Ocean humpback dolphin (Sousa plumbea) in an industrialised bay, northwestern Persian Gulf. Ecological Indicators: 89: 631-638.