Minton, Gianna,van Bressem, M. F.,Willson, A.,Collins, T.,Al Harthi, S.,Sarrouf Willson, M.,Baldwin, R.,Leslie, M.,Robbins, J.,Van Waerebeek, K
Visual Health Assessment and evaluation of Anthropogenic threats to Arabian Sea Humpback Whales in Oman Technical Report
Document presented to the Scientific Committee of the International Whaling Commission no. 418, 2020.
Abstract | Links | BibTeX | Tags: Arabian Sea, Barnacle, Bycatch, disease, Fisheries, Humpback Whale, killer whale, lesions, megaptera novaeangliae, Oman, pathology, photo identification, predation, scarring, skin, tattoo
@techreport{,
title = {Visual Health Assessment and evaluation of Anthropogenic threats to Arabian Sea Humpback Whales in Oman},
author = {Minton, Gianna,van Bressem, M. F.,Willson, A.,Collins, T.,Al Harthi, S.,Sarrouf Willson, M.,Baldwin, R.,Leslie, M.,Robbins, J.,Van Waerebeek, K},
url = {https://arabianseawhalenetwork.org/wp-content/uploads/2020/06/sc_68b_cmp_16_rev1_visual-health-assessment-of-ashw-in-oman-1.pdf},
year = {2020},
date = {2020-01-01},
journal = {Paper presented to the meeting of the Scientific Committee of the International Whaling Commission},
number = {418},
pages = {25},
publisher = {IWC},
institution = {Document presented to the Scientific Committee of the International Whaling Commission},
abstract = {Arabian Sea humpback whales have been a subject of conservation concern in the IWC since 1997. Research conducted primarily off the coast of Oman has contributed to understanding the population’s distribution, abundance, and conservation status, whilst information on the population’s health and specific threats is more limited. This study examines all available images of Arabian Sea humpback whales obtained between 2000 and 2018 for evidence of disease, predation, epizoites and human-induced scarring or injury to individuals. Tattoo-like skin disease was detected in 43.4% of 83 adult whales, with a roughly equal distribution between males and females. The prevalence of the disease was significantly higher in 2012-2018 (51.7%) than in 2000-2011 (24.1%). The lesions persisted for two to 14 years in 10 whales and progressed in prevalence and percentage of body cover in six of them. Killer whale tooth rakes were detected in 12% (95% CI 4.5-18%) of individuals based on examination of photographs showing the ventral surface of tail flukes (n=77), but no cookie cutter shark wounds were detected on any body parts of any of the whales examined. Roughly two thirds (66.6%: 95% CI 52-80%) of individuals represented by good quality photos of the caudal peduncle region (n=42) bore scarring patterns considered likely to be associated with entanglement in fishing gear, with no significant differences in entanglement scarring rates between males and females. Four individuals bore injuries consistent with vessel strikes and at least two individuals showed severe injuries and deformations likely to have been caused by interactions with vessels and/or fishing gear. Five documented entanglement events from Oman and Pakistan involved large-mesh nylon gillnets, which are known to be used extensively throughout the Arabian Sea. In light of this population’s endangered status, these findings indicate an urgent need to continue monitoring Arabian Sea humpback whales, with an emphasis on methods that allow continued and expanded assessment of health, body condition, and anthropogenic interactions, aimed toward designing effective conservation strategies to mitigate known threats. },
keywords = {Arabian Sea, Barnacle, Bycatch, disease, Fisheries, Humpback Whale, killer whale, lesions, megaptera novaeangliae, Oman, pathology, photo identification, predation, scarring, skin, tattoo},
pubstate = {published},
tppubtype = {techreport}
}
Arabian Sea humpback whales have been a subject of conservation concern in the IWC since 1997. Research conducted primarily off the coast of Oman has contributed to understanding the population’s distribution, abundance, and conservation status, whilst information on the population’s health and specific threats is more limited. This study examines all available images of Arabian Sea humpback whales obtained between 2000 and 2018 for evidence of disease, predation, epizoites and human-induced scarring or injury to individuals. Tattoo-like skin disease was detected in 43.4% of 83 adult whales, with a roughly equal distribution between males and females. The prevalence of the disease was significantly higher in 2012-2018 (51.7%) than in 2000-2011 (24.1%). The lesions persisted for two to 14 years in 10 whales and progressed in prevalence and percentage of body cover in six of them. Killer whale tooth rakes were detected in 12% (95% CI 4.5-18%) of individuals based on examination of photographs showing the ventral surface of tail flukes (n=77), but no cookie cutter shark wounds were detected on any body parts of any of the whales examined. Roughly two thirds (66.6%: 95% CI 52-80%) of individuals represented by good quality photos of the caudal peduncle region (n=42) bore scarring patterns considered likely to be associated with entanglement in fishing gear, with no significant differences in entanglement scarring rates between males and females. Four individuals bore injuries consistent with vessel strikes and at least two individuals showed severe injuries and deformations likely to have been caused by interactions with vessels and/or fishing gear. Five documented entanglement events from Oman and Pakistan involved large-mesh nylon gillnets, which are known to be used extensively throughout the Arabian Sea. In light of this population’s endangered status, these findings indicate an urgent need to continue monitoring Arabian Sea humpback whales, with an emphasis on methods that allow continued and expanded assessment of health, body condition, and anthropogenic interactions, aimed toward designing effective conservation strategies to mitigate known threats.
Mohsenian, Nazanin,Moshiri, Hamed,Tollab, Amin,Bargahi, Hamid Reza,Braulik, Gill T.,Gemmell, Georgina L.,Collins, Tim
Confirmed sightings of the Killer Whale, Orcinus orca, in Iranian waters (Mammalia: Cetacea) Journal Article
In: Zoology in the Middle East, vol. 65, no. 171, pp. 280-282, 2019, ISBN: 0939-7140.
Links | BibTeX | Tags: Arabian Gulf, Arabian Sea, Iran, killer whale, Orcinus orca, Persian Gulf
@article{,
title = {Confirmed sightings of the Killer Whale, Orcinus orca, in Iranian waters (Mammalia: Cetacea)},
author = {Mohsenian, Nazanin,Moshiri, Hamed,Tollab, Amin,Bargahi, Hamid Reza,Braulik, Gill T.,Gemmell, Georgina L.,Collins, Tim},
url = {https://doi.org/10.1080/09397140.2019.1596590},
issn = {0939-7140},
year = {2019},
date = {2019-01-01},
journal = {Zoology in the Middle East},
volume = {65},
number = {171},
pages = {280-282},
publisher = {Taylor & Francis},
keywords = {Arabian Gulf, Arabian Sea, Iran, killer whale, Orcinus orca, Persian Gulf},
pubstate = {published},
tppubtype = {article}
}
Braulik,G.,Ranjbar,S.,Owfi,F.,Aminrad,T.,Dakhteh,S.M.H.,Kamrani,E.,Mohsenizadeh,F.
Marine Mammal Records from Iran Journal Article
In: Journal of Cetacean Research and Management, vol. 11, no. 334, pp. 49-63, 2010.
Abstract | BibTeX | Tags: abundance, bottlenose dolphin, Bryde's whale, Common dolphin, conservation, Distribution, dolphin, dugong, fin whale, Finless Porpoise, fishing gear, Gulf of Oman, Humpback Whale, humpback whales, incidental capture, killer whale, location, mammals, management, marine, marine mammal, Marine mammals, mortality, mysticete, mysticetes, Oman, Porpoise, Risso's dolphin, rough-toothed dolphin, Spinner dolphin, whale, whales
@article{,
title = {Marine Mammal Records from Iran},
author = {Braulik,G.,Ranjbar,S.,Owfi,F.,Aminrad,T.,Dakhteh,S.M.H.,Kamrani,E.,Mohsenizadeh,F.},
year = {2010},
date = {2010-01-01},
journal = {Journal of Cetacean Research and Management},
volume = {11},
number = {334},
pages = {49-63},
abstract = {A total of 114 marine mammal records of 14 species were compiled from Iranian coastalwaters of the Persian Gulf and Gulf of Oman. Eighty-one were from the Persian Gulf, 23from the Gulf of Oman and 10 were of unknown location. Records of finless porpoise(Neophocaena phocaenoides) (24), Indo-pacific humpback dolphin (Sousa chinensis) (22)and Indo-pacific bottlenose dolphin (Tursiops aduncus) (21) were by far the most numerousa probable reflection of their inshore distribution and local abundance. Other speciesrecorded were common dolphin (Delphinus capensis tropicalis), rough-toothed dolphin(Steno bredanensis), striped dolphin (Stenella coeruleoalba), spinner dolphin (Stenellalongirostris), Risso's dolphin (Grampus griseus), false killer whale (Pseudorca crassidens),sperm whale (Physeter macrocephalus) and dugong (Dugong dugon). Records of 24Mysticetes were compiled, 11 of which were tentatively identified as Bryde's whales(Balaenoptera edeni), three as Fin whales (Balaenoptera physalus), three as Humpbackwhales (Megaptera novaeangliae) and the remainder were unidentified. The largest threat tomarine mammals in Iran is likely to be incidental capture in fishing gear. Nine finlessporpoises were recorded as bycatch and this and other coastal species may be declining dueto unsustainable mortality rates. Other threats to the marine environment are discussed andrecommended marine mammal conservation and management small projects are described.},
keywords = {abundance, bottlenose dolphin, Bryde's whale, Common dolphin, conservation, Distribution, dolphin, dugong, fin whale, Finless Porpoise, fishing gear, Gulf of Oman, Humpback Whale, humpback whales, incidental capture, killer whale, location, mammals, management, marine, marine mammal, Marine mammals, mortality, mysticete, mysticetes, Oman, Porpoise, Risso's dolphin, rough-toothed dolphin, Spinner dolphin, whale, whales},
pubstate = {published},
tppubtype = {article}
}
A total of 114 marine mammal records of 14 species were compiled from Iranian coastalwaters of the Persian Gulf and Gulf of Oman. Eighty-one were from the Persian Gulf, 23from the Gulf of Oman and 10 were of unknown location. Records of finless porpoise(Neophocaena phocaenoides) (24), Indo-pacific humpback dolphin (Sousa chinensis) (22)and Indo-pacific bottlenose dolphin (Tursiops aduncus) (21) were by far the most numerousa probable reflection of their inshore distribution and local abundance. Other speciesrecorded were common dolphin (Delphinus capensis tropicalis), rough-toothed dolphin(Steno bredanensis), striped dolphin (Stenella coeruleoalba), spinner dolphin (Stenellalongirostris), Risso's dolphin (Grampus griseus), false killer whale (Pseudorca crassidens),sperm whale (Physeter macrocephalus) and dugong (Dugong dugon). Records of 24Mysticetes were compiled, 11 of which were tentatively identified as Bryde's whales(Balaenoptera edeni), three as Fin whales (Balaenoptera physalus), three as Humpbackwhales (Megaptera novaeangliae) and the remainder were unidentified. The largest threat tomarine mammals in Iran is likely to be incidental capture in fishing gear. Nine finlessporpoises were recorded as bycatch and this and other coastal species may be declining dueto unsustainable mortality rates. Other threats to the marine environment are discussed andrecommended marine mammal conservation and management small projects are described.
Mehta,A.V.
How important are baleen whales as prey for killer whales (Orcinus orca) in high-latitude waters? PhD Thesis
2004.
Abstract | BibTeX | Tags: Alaska, Antarctic, Atlantic, Australia, baleen whales, Blue whale, blue whales, Gulf of Maine, Humpback Whale, humpback whales, killer whale, killer whales, New Caledonia, New Zealand, North Atlantic, North Atlantic right whale, North Pacific, Oman, Orca, Orcinus orca, population, prey, pygmy blue whale, Pygmy blue whales, right whale, right whales, whale, whales, whaling
@phdthesis{,
title = {How important are baleen whales as prey for killer whales (Orcinus orca) in high-latitude waters?},
author = {Mehta,A.V.},
year = {2004},
date = {2004-01-01},
number = {403},
pages = {1-15},
publisher = {Boston University},
abstract = {Data on humpback whales were collected from twenty-one regions: eleven in the North Atlantic and three in the North Pacific, as well as American Samoa, Vava'u (Tonga), New Zealand, New Caledonia, western Australia, the Antarctic Peninsula, and Oman. The other species and subspecies included in this project were sampled from a single population each (Fig. 1): North Atlantic right whales, blue whales off southeastern Australia, and pygmy blue whales (Balaenoptera musculus brevicauda) off western Australia. The proportion of whales in different sampling regions bearing rake marks ranged from 0% to over 40%. The Gulf of Maine population had a scarring rate of 9.9-11%, while SW Alaska had a rate of 21.1 to 21.9%. Oman had a rate of 9.1% (3 of 33 animals). The highest rate of scarring was the "Mexico" population with a scarring rate of over 40%. Of those scarred animals with multi-year sighting histories, 82.8% to 100% had those scars the first time they were sighted. Of the total number of whales sampled from these regions, 0% to only 4.8% acquired new or additional rake marks after their first sighting, supporting the hypothesis that most whales aquire their scars as calves, and that adult baleen whales do not constitute a major prey source for killer whales.Overall, the present study suggests that the hypothesis presented by Springer et al. (2003) - that killer whales in the North Pacific were forced by industrial whaling to switch prey from baleen whales to pinnipeds and sea otters - is untenable.},
keywords = {Alaska, Antarctic, Atlantic, Australia, baleen whales, Blue whale, blue whales, Gulf of Maine, Humpback Whale, humpback whales, killer whale, killer whales, New Caledonia, New Zealand, North Atlantic, North Atlantic right whale, North Pacific, Oman, Orca, Orcinus orca, population, prey, pygmy blue whale, Pygmy blue whales, right whale, right whales, whale, whales, whaling},
pubstate = {published},
tppubtype = {phdthesis}
}
Data on humpback whales were collected from twenty-one regions: eleven in the North Atlantic and three in the North Pacific, as well as American Samoa, Vava'u (Tonga), New Zealand, New Caledonia, western Australia, the Antarctic Peninsula, and Oman. The other species and subspecies included in this project were sampled from a single population each (Fig. 1): North Atlantic right whales, blue whales off southeastern Australia, and pygmy blue whales (Balaenoptera musculus brevicauda) off western Australia. The proportion of whales in different sampling regions bearing rake marks ranged from 0% to over 40%. The Gulf of Maine population had a scarring rate of 9.9-11%, while SW Alaska had a rate of 21.1 to 21.9%. Oman had a rate of 9.1% (3 of 33 animals). The highest rate of scarring was the "Mexico" population with a scarring rate of over 40%. Of those scarred animals with multi-year sighting histories, 82.8% to 100% had those scars the first time they were sighted. Of the total number of whales sampled from these regions, 0% to only 4.8% acquired new or additional rake marks after their first sighting, supporting the hypothesis that most whales aquire their scars as calves, and that adult baleen whales do not constitute a major prey source for killer whales.Overall, the present study suggests that the hypothesis presented by Springer et al. (2003) - that killer whales in the North Pacific were forced by industrial whaling to switch prey from baleen whales to pinnipeds and sea otters - is untenable.
Corkeron,P.J.,Connor,R.C.
Why do baleen whales migrate? Journal Article
In: Marine Mammal Science, vol. 15, no. 76, pp. 1228-1245, 1999.
Abstract | BibTeX | Tags: abundance, Distribution, killer whale, killer whales, migration, mysticetes, Orca, predation
@article{,
title = {Why do baleen whales migrate?},
author = {Corkeron,P.J.,Connor,R.C.},
year = {1999},
date = {1999-01-01},
journal = {Marine Mammal Science},
volume = {15},
number = {76},
pages = {1228-1245},
abstract = {The annual migrations of baleen whales are a conspicuous, but unexplained feature of their behavioural repertoire. Some hypotheses offered to explain whale migration focus on direct benefits to the calf (thermoregulation, calm water) and some do not (resource tracking, and the "evolutionary holdover" hypothesis). Here we suggest that a major selective advantage to migrating pregnant female baleen whales is a reduced risk of killer whale predation on their newborn calves in low-latitude waters. Killer whale abundance in high latitudes is substantially greater than that in lower latitudes, and most killer whales do not appear to migrate with baleen whales. We suggest that the distribution of killer whales is determined more by their primary marine mammal prey, pinnipeds, and that following the baleen whale migrations would remove them from their pinnipeds prey. There are problems with all current hypotheses, most of which stem from a lack of directed research. We explore variation in migratory habits between species, populations, and individuals that may provide a "natural laboratory" for discriminating among the competing hypotheses. The authors specifically recommend more detailed study of non-migrating populations, such as the Arabian Sea population of humpback whales.},
keywords = {abundance, Distribution, killer whale, killer whales, migration, mysticetes, Orca, predation},
pubstate = {published},
tppubtype = {article}
}
The annual migrations of baleen whales are a conspicuous, but unexplained feature of their behavioural repertoire. Some hypotheses offered to explain whale migration focus on direct benefits to the calf (thermoregulation, calm water) and some do not (resource tracking, and the "evolutionary holdover" hypothesis). Here we suggest that a major selective advantage to migrating pregnant female baleen whales is a reduced risk of killer whale predation on their newborn calves in low-latitude waters. Killer whale abundance in high latitudes is substantially greater than that in lower latitudes, and most killer whales do not appear to migrate with baleen whales. We suggest that the distribution of killer whales is determined more by their primary marine mammal prey, pinnipeds, and that following the baleen whale migrations would remove them from their pinnipeds prey. There are problems with all current hypotheses, most of which stem from a lack of directed research. We explore variation in migratory habits between species, populations, and individuals that may provide a "natural laboratory" for discriminating among the competing hypotheses. The authors specifically recommend more detailed study of non-migrating populations, such as the Arabian Sea population of humpback whales.
Small,J.A..,Small,G.J.
Cetacean observations from the Somali Democratic Republic, September 1985 through May 1987 Journal Article
In: CEtaceans and Cetacean Research in the Indian Ocean Sanctuary: UNEP - Marine Mammal Technical Report No.3, no. 476, pp. 179-210, 1991.
Abstract | BibTeX | Tags: Antarctic, Blue whale, bottlenose dolphin, Bryde's whale, cetacean, cetaceans, Common dolphin, dolphin, false killer whale, Gulf of Aden, Humpback Whale, humpback whales, Indian Ocean, killer whale, location, marine, megaptera novaeangliae, melon-headed whale, migration, occurrence, Oman, Pacific Ocean, Risso's dolphin, sanctuaries, Southern Hemisphere, sperm whale, Spinner dolphin, spotted dolphin, stocks, Striped dolphin, survey, trend, Upwelling, whale, whales, whaling
@article{,
title = {Cetacean observations from the Somali Democratic Republic, September 1985 through May 1987},
author = {Small,J.A..,Small,G.J.},
year = {1991},
date = {1991-01-01},
journal = {CEtaceans and Cetacean Research in the Indian Ocean Sanctuary: UNEP - Marine Mammal Technical Report No.3},
number = {476},
pages = {179-210},
abstract = {Two vessels operated along the Gulf of Aden and northern Indian Ocean coasts of Somalia from Aug. 1985 through May 1987. Their fishing activities carried them on a routine basis from Djibouti to the Horn of Africa and, on many cruises, into the Indian Ocean as far south as 8øN. The frequent and regular presence of these vessels afforded a unique opportunity for research since few previous surveys along the Somalian coast were transitory and/or of short duration. There were 398 sightings of cetaceans representing at least 14 species: blue whale, Bryde's whale, sperm whale, melon-headed whale, false killer whale, killer whale, short-finned pilot whale, Indo-Pacific humpback dolphin, common dolphin, bottlenose dolphin, Risso's dolphin, spotted dolphin, striped dolphin and spinner dolphin (NO humpback whales!!). Sightings locations and related environmental data are discussed. Some trends between years were seen in the occurrence and location of blue, killer and short-finned pilot whales.},
keywords = {Antarctic, Blue whale, bottlenose dolphin, Bryde's whale, cetacean, cetaceans, Common dolphin, dolphin, false killer whale, Gulf of Aden, Humpback Whale, humpback whales, Indian Ocean, killer whale, location, marine, megaptera novaeangliae, melon-headed whale, migration, occurrence, Oman, Pacific Ocean, Risso's dolphin, sanctuaries, Southern Hemisphere, sperm whale, Spinner dolphin, spotted dolphin, stocks, Striped dolphin, survey, trend, Upwelling, whale, whales, whaling},
pubstate = {published},
tppubtype = {article}
}
Two vessels operated along the Gulf of Aden and northern Indian Ocean coasts of Somalia from Aug. 1985 through May 1987. Their fishing activities carried them on a routine basis from Djibouti to the Horn of Africa and, on many cruises, into the Indian Ocean as far south as 8øN. The frequent and regular presence of these vessels afforded a unique opportunity for research since few previous surveys along the Somalian coast were transitory and/or of short duration. There were 398 sightings of cetaceans representing at least 14 species: blue whale, Bryde's whale, sperm whale, melon-headed whale, false killer whale, killer whale, short-finned pilot whale, Indo-Pacific humpback dolphin, common dolphin, bottlenose dolphin, Risso's dolphin, spotted dolphin, striped dolphin and spinner dolphin (NO humpback whales!!). Sightings locations and related environmental data are discussed. Some trends between years were seen in the occurrence and location of blue, killer and short-finned pilot whales.
Harwood,J.
Observations of cetaceans in the Arabian Sea, November - December 1980 Technical Report
no. 384, 1980.
Abstract | BibTeX | Tags: Arabian Sea, cetacean, cetaceans, dolphin, dolphins, Gulf of Oman, killer whale, killer whales, Oman, Spinner dolphin, whale, whales
@techreport{,
title = {Observations of cetaceans in the Arabian Sea, November - December 1980
},
author = {Harwood,J.},
year = {1980},
date = {1980-01-01},
number = {384},
pages = {1-7},
publisher = {Sea Mammal Research Unit, Cambridge},
abstract = {This is a brief report of cetacean sightings made during the voyage of the sailing ship SOHAR (a 26m long reconstruction of a ninth century Arab dhow from Muscat to Calicut, from 23 Nov to 21 Dec.1980. The cruise covered only the Gulf of Oman Coast of Oman from roughly Muscat to Tiwi, and then head across to the Indian Sub-continent. Only 26 sightings were made during intermittent watches. Sightings off Oman included pygmy killer whales (uncertain ID), two groups of unidentified dolphins and spinner dolphins.},
keywords = {Arabian Sea, cetacean, cetaceans, dolphin, dolphins, Gulf of Oman, killer whale, killer whales, Oman, Spinner dolphin, whale, whales},
pubstate = {published},
tppubtype = {techreport}
}
This is a brief report of cetacean sightings made during the voyage of the sailing ship SOHAR (a 26m long reconstruction of a ninth century Arab dhow from Muscat to Calicut, from 23 Nov to 21 Dec.1980. The cruise covered only the Gulf of Oman Coast of Oman from roughly Muscat to Tiwi, and then head across to the Indian Sub-continent. Only 26 sightings were made during intermittent watches. Sightings off Oman included pygmy killer whales (uncertain ID), two groups of unidentified dolphins and spinner dolphins.
Harwood,J.
Observations of cetaceans in the Arabian Sea, November - December 1980 Technical Report
no. 384, 1980.
Abstract | BibTeX | Tags: Arabian Sea, cetacean, cetaceans, dolphin, dolphins, Gulf of Oman, killer whale, killer whales, Oman, Spinner dolphin, whale, whales
@techreport{,
title = {Observations of cetaceans in the Arabian Sea, November - December 1980
},
author = {Harwood,J.},
year = {1980},
date = {1980-01-01},
number = {384},
pages = {1-7},
publisher = {Sea Mammal Research Unit, Cambridge},
abstract = {This is a brief report of cetacean sightings made during the voyage of the sailing ship SOHAR (a 26m long reconstruction of a ninth century Arab dhow from Muscat to Calicut, from 23 Nov to 21 Dec.1980. The cruise covered only the Gulf of Oman Coast of Oman from roughly Muscat to Tiwi, and then head across to the Indian Sub-continent. Only 26 sightings were made during intermittent watches. Sightings off Oman included pygmy killer whales (uncertain ID), two groups of unidentified dolphins and spinner dolphins.},
keywords = {Arabian Sea, cetacean, cetaceans, dolphin, dolphins, Gulf of Oman, killer whale, killer whales, Oman, Spinner dolphin, whale, whales},
pubstate = {published},
tppubtype = {techreport}
}
This is a brief report of cetacean sightings made during the voyage of the sailing ship SOHAR (a 26m long reconstruction of a ninth century Arab dhow from Muscat to Calicut, from 23 Nov to 21 Dec.1980. The cruise covered only the Gulf of Oman Coast of Oman from roughly Muscat to Tiwi, and then head across to the Indian Sub-continent. Only 26 sightings were made during intermittent watches. Sightings off Oman included pygmy killer whales (uncertain ID), two groups of unidentified dolphins and spinner dolphins.
Harwood,J.
Observations of cetaceans in the Arabian Sea, November - December 1980 Technical Report
no. 384, 1980.
Abstract | BibTeX | Tags: Arabian Sea, cetacean, cetaceans, dolphin, dolphins, Gulf of Oman, killer whale, killer whales, Oman, Spinner dolphin, whale, whales
@techreport{,
title = {Observations of cetaceans in the Arabian Sea, November - December 1980
},
author = {Harwood,J.},
year = {1980},
date = {1980-01-01},
number = {384},
pages = {1-7},
publisher = {Sea Mammal Research Unit, Cambridge},
abstract = {This is a brief report of cetacean sightings made during the voyage of the sailing ship SOHAR (a 26m long reconstruction of a ninth century Arab dhow from Muscat to Calicut, from 23 Nov to 21 Dec.1980. The cruise covered only the Gulf of Oman Coast of Oman from roughly Muscat to Tiwi, and then head across to the Indian Sub-continent. Only 26 sightings were made during intermittent watches. Sightings off Oman included pygmy killer whales (uncertain ID), two groups of unidentified dolphins and spinner dolphins.},
keywords = {Arabian Sea, cetacean, cetaceans, dolphin, dolphins, Gulf of Oman, killer whale, killer whales, Oman, Spinner dolphin, whale, whales},
pubstate = {published},
tppubtype = {techreport}
}
This is a brief report of cetacean sightings made during the voyage of the sailing ship SOHAR (a 26m long reconstruction of a ninth century Arab dhow from Muscat to Calicut, from 23 Nov to 21 Dec.1980. The cruise covered only the Gulf of Oman Coast of Oman from roughly Muscat to Tiwi, and then head across to the Indian Sub-continent. Only 26 sightings were made during intermittent watches. Sightings off Oman included pygmy killer whales (uncertain ID), two groups of unidentified dolphins and spinner dolphins.
Harwood,J.
Observations of cetaceans in the Arabian Sea, November - December 1980 Technical Report
no. 384, 1980.
Abstract | BibTeX | Tags: Arabian Sea, cetacean, cetaceans, dolphin, dolphins, Gulf of Oman, killer whale, killer whales, Oman, Spinner dolphin, whale, whales
@techreport{,
title = {Observations of cetaceans in the Arabian Sea, November - December 1980
},
author = {Harwood,J.},
year = {1980},
date = {1980-01-01},
number = {384},
pages = {1-7},
publisher = {Sea Mammal Research Unit, Cambridge},
abstract = {This is a brief report of cetacean sightings made during the voyage of the sailing ship SOHAR (a 26m long reconstruction of a ninth century Arab dhow from Muscat to Calicut, from 23 Nov to 21 Dec.1980. The cruise covered only the Gulf of Oman Coast of Oman from roughly Muscat to Tiwi, and then head across to the Indian Sub-continent. Only 26 sightings were made during intermittent watches. Sightings off Oman included pygmy killer whales (uncertain ID), two groups of unidentified dolphins and spinner dolphins.},
keywords = {Arabian Sea, cetacean, cetaceans, dolphin, dolphins, Gulf of Oman, killer whale, killer whales, Oman, Spinner dolphin, whale, whales},
pubstate = {published},
tppubtype = {techreport}
}
This is a brief report of cetacean sightings made during the voyage of the sailing ship SOHAR (a 26m long reconstruction of a ninth century Arab dhow from Muscat to Calicut, from 23 Nov to 21 Dec.1980. The cruise covered only the Gulf of Oman Coast of Oman from roughly Muscat to Tiwi, and then head across to the Indian Sub-continent. Only 26 sightings were made during intermittent watches. Sightings off Oman included pygmy killer whales (uncertain ID), two groups of unidentified dolphins and spinner dolphins.