A forty-day voyage from Hobart (Australia) to Haifa (Israel) included a visual and acoustic census for cetaceans in the Indian Ocean Sanctuary. One hundred sixty-three sightings were made, 156 occurring within Twelve species identified. Sperm whales (Physeter macrocephalus) encountered most frequently (51% of identified encounters), whilst spinner dolphins (Stenella longirostris) numerically do...

Iran has 1,700km of coastline that borders the Persian Gulf and Arabian Sea in northwest Indian Ocean. Apart from a handful records, almost nothing is known about which marine mammal species occur Iranian waters. This review was conducted to fill this information gap. A total 127 records 14 were compiled coastal Ninety-nine Gulf, 26 Oman 2 unknown location. Records finless porpoise (Neophocaena...

A total of 98 marine mammal records from Iranian coastal waters of the Persian Gulf and Gulf of Oman were compiled of which 66 are previously unpublished new records.  Seventy-nine were from the Persian Gulf and 16 from the Gulf of Oman coast.  The largest numbers of records were from Qeshm Island and Bushehr Provinces. Records of finless porpoise (Neophocaena phocaenoides), Indo-pacific humpba...

The flukes of cetaceans function in the hydrodynamic generation of forces for thrust, stability, and maneuverability. The three-dimensional geometry of flukes is associated with production of lift and drag. Data on fluke geometry were collected from 19 cetacean specimens representing eight odontocete genera (Delphinus, Globicephala, Grampus, Kogia, Lagenorhynchus, Phocoena, Stenella, Tursiops)....

Various anthropogenic threats negatively influence the survival of cetaceans in all world seas. Thanks to a long-running marine mammal surveillance program, we are able report results detailed analysis cetacean-fisheries interactions and litter ingestion on cetacean mortality Croatian part Adriatic Sea over last three decades. The total number dead was 459, included 334 bottlenose dolphins (Tur...

The first evidence suggestive of in vivo gas bubble formation in cetacea, including eight animals stranded in the UK, has recently been reported. This article presents the pathologic findings from these eight UK-stranded cetaceans and two additional UK-stranded cetacean cases in detail. Hepatic gas-filled cavitary lesions (0.2-6.0 cm diameter) involving approximately 5-90% of the liver volume w...

Risso’s dolphins ( Grampus griseus ), uncommon prior to the 1970’s, are now regularly observed within Southern California Bight. During long-term cetacean monitoring programs on United States Navy range areas in Bight from 2009–2019, we deployed 16 Argos-linked satellite tags acquire objective, detailed depictions of their movements and behaviors. Individuals were tracked for a median 10.7 days...