NOAA
Endangered and Threatened Species; Identification of 14 Distinct Population Segments of the Humpback Whale (Megaptera novaeangliae) and Revision of Species-wide Listing
2016.
Abstract | BibTeX | Tags: Arabian Sea, breeding grounds, conservation status, feeding grounds, Humpback Whale, marine mammal, megaptera novaeangliae, population status, USA
@{,
title = {Endangered and Threatened Species; Identification of 14 Distinct Population Segments of the Humpback Whale (Megaptera novaeangliae) and Revision of Species-wide Listing},
author = {NOAA},
issn = {Docket No. 130708594-6598-03},
year = {2016},
date = {2016-01-01},
number = {183},
pages = {247},
publisher = {Department of Commerce},
abstract = {We, NMFS, issue a final determination to revise the listing status of the
humpback whale (Megaptera novaeangliae) under the Endangered Species Act (ESA).
We divide the globally listed endangered species into 14 distinct population segments
(DPS), remove the current species-level listing, and in its place list four DPSs as
endangered and one DPS as threatened. Based on their current statuses, the remaining
nine DPSs do not warrant listing. At this time, we find that critical habitat is not
determinable for the three listed DPSs that occur in U.S. waters (Western North Pacific,
Mexico, Central America); we will consider designating critical habitat for these three
DPSs in a separate rulemaking. },
keywords = {Arabian Sea, breeding grounds, conservation status, feeding grounds, Humpback Whale, marine mammal, megaptera novaeangliae, population status, USA},
pubstate = {published},
tppubtype = {}
}
We, NMFS, issue a final determination to revise the listing status of the
humpback whale (Megaptera novaeangliae) under the Endangered Species Act (ESA).
We divide the globally listed endangered species into 14 distinct population segments
(DPS), remove the current species-level listing, and in its place list four DPSs as
endangered and one DPS as threatened. Based on their current statuses, the remaining
nine DPSs do not warrant listing. At this time, we find that critical habitat is not
determinable for the three listed DPSs that occur in U.S. waters (Western North Pacific,
Mexico, Central America); we will consider designating critical habitat for these three
DPSs in a separate rulemaking.
humpback whale (Megaptera novaeangliae) under the Endangered Species Act (ESA).
We divide the globally listed endangered species into 14 distinct population segments
(DPS), remove the current species-level listing, and in its place list four DPSs as
endangered and one DPS as threatened. Based on their current statuses, the remaining
nine DPSs do not warrant listing. At this time, we find that critical habitat is not
determinable for the three listed DPSs that occur in U.S. waters (Western North Pacific,
Mexico, Central America); we will consider designating critical habitat for these three
DPSs in a separate rulemaking.
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.
Zemsky,V.A.
Extermination of populations of commercial whale species and its possible biological consequences Technical Report
no. 268, 2005.
Abstract | BibTeX | Tags: Arabian Sea, Atlantic, Atlantic Ocean, baleen whale, baleen whales, biological consequences, cetacean, cetaceans, depletion, extermination, mammals, marine, marine mammal, Marine mammals, oil, population, populations, Southern Hemisphere, Soviet whaling, sperm whale, status, whale, whales, whaling
@techreport{,
title = {Extermination of populations of commercial whale species and its possible biological consequences},
author = {Zemsky,V.A.},
year = {2005},
date = {2005-01-01},
number = {268},
pages = {249-259},
abstract = {Cetaceans inhabit practically all seas and oceans of the world and their role in ocean biocenoses is doubtless. Being the source of nutrition and technical resources - oil, meat, etc., - this numrous group of marine mammals had also substantial meaning for the man's economic activity. In a number of coastal regions, some whales are still an important, if not one, source of protein food. All cetaceans can be subdivided into two conditional categories: those which are caught for commerial needs and those which are not. The first group comprises practically all baleen whales, the size of most of which has no analogous in terrestrial mammals, and the sperm whale - the only one of toothed whales. All other cetaceans can be referred to the second group. They are much smaller in size, but more numerous and play not less important role in biocenoses. Some of them were of commercial value in the past and now have lost it almost completely. This brief review pursues three goals: firstly, to reveal the relationship between the population number of the commercial whales and whaling in a historical aspect; secondly, to determine the significance for the estimation of the current status of the large whales' populations of the materials, pulished in 1995, on the largest falsification of statistical data on the Soviet whaling operations in the Southern Hemisphere and in some regions of the Atlantic Ocean, including the Arabian Sea and equatorial waters; thirdly, to try to reveal possible consequences of the drastic depletion of number of the large commerical whales for the ocean biogeocenoses.},
keywords = {Arabian Sea, Atlantic, Atlantic Ocean, baleen whale, baleen whales, biological consequences, cetacean, cetaceans, depletion, extermination, mammals, marine, marine mammal, Marine mammals, oil, population, populations, Southern Hemisphere, Soviet whaling, sperm whale, status, whale, whales, whaling},
pubstate = {published},
tppubtype = {techreport}
}
Cetaceans inhabit practically all seas and oceans of the world and their role in ocean biocenoses is doubtless. Being the source of nutrition and technical resources - oil, meat, etc., - this numrous group of marine mammals had also substantial meaning for the man's economic activity. In a number of coastal regions, some whales are still an important, if not one, source of protein food. All cetaceans can be subdivided into two conditional categories: those which are caught for commerial needs and those which are not. The first group comprises practically all baleen whales, the size of most of which has no analogous in terrestrial mammals, and the sperm whale - the only one of toothed whales. All other cetaceans can be referred to the second group. They are much smaller in size, but more numerous and play not less important role in biocenoses. Some of them were of commercial value in the past and now have lost it almost completely. This brief review pursues three goals: firstly, to reveal the relationship between the population number of the commercial whales and whaling in a historical aspect; secondly, to determine the significance for the estimation of the current status of the large whales' populations of the materials, pulished in 1995, on the largest falsification of statistical data on the Soviet whaling operations in the Southern Hemisphere and in some regions of the Atlantic Ocean, including the Arabian Sea and equatorial waters; thirdly, to try to reveal possible consequences of the drastic depletion of number of the large commerical whales for the ocean biogeocenoses.
Ministry of Agriculture; Fisheries
Ministerial Decree 4/94: Marine Fishing and Living-Aquatic-Resources Protection law
1994.
Abstract | BibTeX | Tags: fishing gear, mammals, marine, marine mammal, Marine mammals, regulations, turtles
@{,
title = {Ministerial Decree 4/94: Marine Fishing and Living-Aquatic-Resources Protection law},
author = {Ministry of Agriculture and Fisheries},
year = {1994},
date = {1994-01-01},
volume = {4/94},
number = {371},
abstract = {Ministerial Decision 4/94, issued by the Ministry of Agriculture and Fisheries, updates Royal Decree No. 53/81, the Marine Fishing and Living Aquatic Resources Protection Law. In addition to prohibiting the hunting of marine mammals (see above) this legislation contains articles pertaining to the licensing of fishermen, fishing vessels, restrictions on certain types of fishing gear and seasonal closures for certain species of fish. A few pertinent articles include:ù A prohibition on capturing any marine resources during their reproductive season (resulting in seasonal closers for lobster and abalone fisheries, and a justification for other seasonal closures on pelagic or demersal species pending research results);ù A prohibition on the use of string nets, monofilament gill nets or the setting of nets at high tide on beaches or lagoons to trap fish on outgoing tides;ù A prohibition on foreign fishing vessels in Omani waters operating without official permit from the MAF;ù A prohibition on the use of foreign/expatriate workers on fishing vessels licensed to conduct artisanal/traditional fishing;ù A prohibition for fishermen to 1) sail into areas allocated to other fishermen with the intent to fish; or 2) to place fishing gear in areas not specifically allocated to them by licence;ù The right of the MAF to require fishermen and dealers to collect and provide any data requested or required by the MAF;ù The right of the MAF to prohibit fishing of certain species, or fishing in certain regions or seasons.},
keywords = {fishing gear, mammals, marine, marine mammal, Marine mammals, regulations, turtles},
pubstate = {published},
tppubtype = {}
}
Ministerial Decision 4/94, issued by the Ministry of Agriculture and Fisheries, updates Royal Decree No. 53/81, the Marine Fishing and Living Aquatic Resources Protection Law. In addition to prohibiting the hunting of marine mammals (see above) this legislation contains articles pertaining to the licensing of fishermen, fishing vessels, restrictions on certain types of fishing gear and seasonal closures for certain species of fish. A few pertinent articles include:ù A prohibition on capturing any marine resources during their reproductive season (resulting in seasonal closers for lobster and abalone fisheries, and a justification for other seasonal closures on pelagic or demersal species pending research results);ù A prohibition on the use of string nets, monofilament gill nets or the setting of nets at high tide on beaches or lagoons to trap fish on outgoing tides;ù A prohibition on foreign fishing vessels in Omani waters operating without official permit from the MAF;ù A prohibition on the use of foreign/expatriate workers on fishing vessels licensed to conduct artisanal/traditional fishing;ù A prohibition for fishermen to 1) sail into areas allocated to other fishermen with the intent to fish; or 2) to place fishing gear in areas not specifically allocated to them by licence;ù The right of the MAF to require fishermen and dealers to collect and provide any data requested or required by the MAF;ù The right of the MAF to prohibit fishing of certain species, or fishing in certain regions or seasons.
Alling,A.
A preliminary report of marine mammal fisheries in Djibouti, Oman and Sri Lanka Technical Report
no. 280, 1992.
Abstract | BibTeX | Tags: Arctic, cetacean, cetaceans, dolphin, dolphins, Fisheries, habitat, Indian Ocean, marine, marine mammal, North Pacific, Oman, Porpoise, sanctuaries, skull, skulls, Sri Lanka, status, stomach contents, whale, whales
@techreport{,
title = {A preliminary report of marine mammal fisheries in Djibouti, Oman and Sri Lanka },
author = {Alling,A.},
year = {1992},
date = {1992-01-01},
volume = {694 },
number = {280},
pages = {1-10},
abstract = {INTRODUCTION During the 1982 and 1983 field seasons on Tulip, an effort was made to assess the status of small whale fisheries in Djibouti, Oman and Sri Lanka. In lieu of the fact that the World Wildlife Funds Indian Ocean Whale study still has one more year of field work, this preliminary report will only summarise our findings as of April, 1983. Officials and fisherman were contacted during port calls in 1982 to obtain information about local hunting and entrapment of cetaceans and members of the Tulip crew travelled to 9 harbours in Sri Lanka to interview fishermen. Dolphins seen in fish markets were measured, identified, stomach contents taken, and skulls collected for positive identification. In 1982 one fisherman on the west coast of Sri Lanka was asked to keep a daily log of all cetaceans entrapped or harpooned for a duration of one year. In 1983 we increased the number of harbours Monitored and four additional fishermen, three on the east coast and one on the west coast, were asked to keep these journals. A constant watch was kept at sea for all cetacean sightings. Species seen were identified using three identification guides: Whales, Dolphins and Porpoises of the Eastern North Pacific and Adjacent Arctic Waters (Leatherwood et al., 1982), Sea Guide to, Whales of the World (Watson, 1982), and A Field Guide to Whales and Dolphins (Captain Morzer Bruyns, 1971). When the identification was questionable, animals were photographed for confirmation of identity at a later date. },
keywords = {Arctic, cetacean, cetaceans, dolphin, dolphins, Fisheries, habitat, Indian Ocean, marine, marine mammal, North Pacific, Oman, Porpoise, sanctuaries, skull, skulls, Sri Lanka, status, stomach contents, whale, whales},
pubstate = {published},
tppubtype = {techreport}
}
INTRODUCTION During the 1982 and 1983 field seasons on Tulip, an effort was made to assess the status of small whale fisheries in Djibouti, Oman and Sri Lanka. In lieu of the fact that the World Wildlife Funds Indian Ocean Whale study still has one more year of field work, this preliminary report will only summarise our findings as of April, 1983. Officials and fisherman were contacted during port calls in 1982 to obtain information about local hunting and entrapment of cetaceans and members of the Tulip crew travelled to 9 harbours in Sri Lanka to interview fishermen. Dolphins seen in fish markets were measured, identified, stomach contents taken, and skulls collected for positive identification. In 1982 one fisherman on the west coast of Sri Lanka was asked to keep a daily log of all cetaceans entrapped or harpooned for a duration of one year. In 1983 we increased the number of harbours Monitored and four additional fishermen, three on the east coast and one on the west coast, were asked to keep these journals. A constant watch was kept at sea for all cetacean sightings. Species seen were identified using three identification guides: Whales, Dolphins and Porpoises of the Eastern North Pacific and Adjacent Arctic Waters (Leatherwood et al., 1982), Sea Guide to, Whales of the World (Watson, 1982), and A Field Guide to Whales and Dolphins (Captain Morzer Bruyns, 1971). When the identification was questionable, animals were photographed for confirmation of identity at a later date.
Gallagher,M.D.
Collection of skulls of cetacea: Odondoceti from Bahrain, United Arab Emirates and Oman, 1969 - 1990 Book
UNEP, 1991.
Abstract | BibTeX | Tags: bottlenose dolphin, cetacea, cetacean, cetaceans, Common dolphin, Cuvier's beaked whale, dwarf sperm whale, false killer whale, fishing gear, hump-backed dolphin, incidental capture, Indian Ocean, marine, marine mammal, mass mortality, morphology/anatomy, mortality, Oman, Risso's dolphin, sanctuaries, skull, skulls, sperm whale, Spinner dolphin, spotted dolphin, Strandings, Striped dolphin, tropical dolphin, United Arab Emirates
@book{,
title = {Collection of skulls of cetacea: Odondoceti from Bahrain, United Arab Emirates and Oman, 1969 - 1990},
author = {Gallagher,M.D.},
year = {1991},
date = {1991-01-01},
journal = {Cetaceans and Cetacean Research in the Indian Ocean Sanctuary: Marine Mammal Technical Report Number 3},
number = {375},
pages = {89-97},
publisher = {UNEP},
abstract = {This paper details the collections of odontocete cetacean skulls from Bahrain, the United Arab Emirates and Oman, 1969-90. Causes of death of specimens are unknown but the likelihood of natural strandings, incidental capture in fishing gear and mass mortality are discussed.},
keywords = {bottlenose dolphin, cetacea, cetacean, cetaceans, Common dolphin, Cuvier's beaked whale, dwarf sperm whale, false killer whale, fishing gear, hump-backed dolphin, incidental capture, Indian Ocean, marine, marine mammal, mass mortality, morphology/anatomy, mortality, Oman, Risso's dolphin, sanctuaries, skull, skulls, sperm whale, Spinner dolphin, spotted dolphin, Strandings, Striped dolphin, tropical dolphin, United Arab Emirates},
pubstate = {published},
tppubtype = {book}
}
This paper details the collections of odontocete cetacean skulls from Bahrain, the United Arab Emirates and Oman, 1969-90. Causes of death of specimens are unknown but the likelihood of natural strandings, incidental capture in fishing gear and mass mortality are discussed.
IUCN
Cetaceans and cetacean research in the Indian Ocean Sanctuary Book Chapter
In: no. 391, pp. 1-287, UNEP, 1991.
BibTeX | Tags: Antarctic, cetacean, cetaceans, Humpback Whale, humpback whales, Indian Ocean, marine, marine mammal, megaptera novaeangliae, migration, Oman, Pacific Ocean, sanctuaries, Southern Hemisphere, stocks, Upwelling, whale, whales, whaling
@inbook{,
title = {Cetaceans and cetacean research in the Indian Ocean Sanctuary},
author = {IUCN},
year = {1991},
date = {1991-01-01},
journal = {UNEP marine Mammal Technical Report number 3},
number = {391},
pages = {1-287},
publisher = {UNEP},
keywords = {Antarctic, cetacean, cetaceans, Humpback Whale, humpback whales, Indian Ocean, marine, marine mammal, megaptera novaeangliae, migration, Oman, Pacific Ocean, sanctuaries, Southern Hemisphere, stocks, Upwelling, whale, whales, whaling},
pubstate = {published},
tppubtype = {inbook}
}
Leatherwood, S.,Donovan, G.P.
Cetaceans and cetacean research in the Indian Ocean Sanctuary Book Chapter
In: no. 397, pp. 1-287, UNEP, 1991.
BibTeX | Tags: Antarctic, cetacean, cetaceans, Humpback Whale, humpback whales, Indian Ocean, marine, marine mammal, megaptera novaeangliae, migration, Oman, Pacific Ocean, sanctuaries, Southern Hemisphere, stocks, Upwelling, whale, whales, whaling
@inbook{,
title = {Cetaceans and cetacean research in the Indian Ocean Sanctuary},
author = {Leatherwood, S.,Donovan, G.P.},
year = {1991},
date = {1991-01-01},
journal = {UNEP marine Mammal Technical Report number 3},
number = {397},
pages = {1-287},
publisher = {UNEP},
keywords = {Antarctic, cetacean, cetaceans, Humpback Whale, humpback whales, Indian Ocean, marine, marine mammal, megaptera novaeangliae, migration, Oman, Pacific Ocean, sanctuaries, Southern Hemisphere, stocks, Upwelling, whale, whales, whaling},
pubstate = {published},
tppubtype = {inbook}
}
Papastavrou,V.,Salm,R.V.
A note on recent sightings and strandings of cetaceans in Oman: Ra's Sawadi to Rakhyut Book
United Nations Environment Programme, 1991.
BibTeX | Tags: cetacean, cetaceans, Indian Ocean, marine, marine mammal, Oman, sanctuaries, Strandings, whale, whales
@book{,
title = {A note on recent sightings and strandings of cetaceans in Oman: Ra's Sawadi to Rakhyut},
author = {Papastavrou,V.,Salm,R.V.},
year = {1991},
date = {1991-01-01},
journal = {Cetaceans and Cetacean Research in the Indian Ocean Sanctuary: Marine Mammal Technical Report Number 3},
number = {427},
publisher = {United Nations Environment Programme},
keywords = {cetacean, cetaceans, Indian Ocean, marine, marine mammal, Oman, sanctuaries, Strandings, whale, whales},
pubstate = {published},
tppubtype = {book}
}
Reeves,R.R.,Leatherwood,S.,Papastavrou,V.
Possible stock affinities of humpback whales in the northern Indian Ocean Book
UNEP, 1991.
Abstract | BibTeX | Tags: Antarctic, cetacean, cetaceans, Humpback Whale, humpback whales, Indian Ocean, marine, marine mammal, megaptera novaeangliae, migration, Oman, Pacific Ocean, sanctuaries, Southern Hemisphere, stocks, Upwelling, whale, whales, whaling
@book{,
title = {Possible stock affinities of humpback whales in the northern Indian Ocean},
author = {Reeves,R.R.,Leatherwood,S.,Papastavrou,V.},
year = {1991},
date = {1991-01-01},
journal = {Cetaceans and Cetacean Research in the Indian Ocean Sanctuary: Marine Mammal Technical Report Number 3},
number = {443},
pages = {259-269},
publisher = {UNEP},
abstract = {Records of humpback whales. Megaptera novaeangliae. in the northern Indian Ocean are compiled and evaluated to test various hypotheses concerning stock relationships. The conventional view that all humpbacks in this region are migrants from the Southern Hemisphere or, less likely, from the Pacific Ocean has been challenged recently by other authors. There is no reason to doubt that some Antarctic humpbacks cross the. Equator during their winter breeding migration northward. However, sightings in the northern Indian Ocean during the austral spring, summer and fall arc sufficiently frequent and widespread to support the hypothesis that some whales remain north of the Equator in the Indian Ocean year-round. Humpbacks appear to be present off Oman throughout the year, including relatively large concentrations, apparently feeding, during boreal summer/fall. We postulate that areas of cool, highly productive upwelling near the coast of Oman create conditions suitable for humpback feeding. The northern Indian Ocean is characterised by a virtual absence of modern commercial whaling and a paucity of cetacean research. As a result. evidence is insufficient to determine the relationships between stocks of humpbacks in the northern Indian Ocean and stocks of humpbacks elsewhere.},
keywords = {Antarctic, cetacean, cetaceans, Humpback Whale, humpback whales, Indian Ocean, marine, marine mammal, megaptera novaeangliae, migration, Oman, Pacific Ocean, sanctuaries, Southern Hemisphere, stocks, Upwelling, whale, whales, whaling},
pubstate = {published},
tppubtype = {book}
}
Records of humpback whales. Megaptera novaeangliae. in the northern Indian Ocean are compiled and evaluated to test various hypotheses concerning stock relationships. The conventional view that all humpbacks in this region are migrants from the Southern Hemisphere or, less likely, from the Pacific Ocean has been challenged recently by other authors. There is no reason to doubt that some Antarctic humpbacks cross the. Equator during their winter breeding migration northward. However, sightings in the northern Indian Ocean during the austral spring, summer and fall arc sufficiently frequent and widespread to support the hypothesis that some whales remain north of the Equator in the Indian Ocean year-round. Humpbacks appear to be present off Oman throughout the year, including relatively large concentrations, apparently feeding, during boreal summer/fall. We postulate that areas of cool, highly productive upwelling near the coast of Oman create conditions suitable for humpback feeding. The northern Indian Ocean is characterised by a virtual absence of modern commercial whaling and a paucity of cetacean research. As a result. evidence is insufficient to determine the relationships between stocks of humpbacks in the northern Indian Ocean and stocks of humpbacks elsewhere.
Alling,A.
A preliminary report of marine mammal fisheries in Djibouti, Oman and Sri Lanka. Technical Report
no. 279, 1983.
Abstract | BibTeX | Tags: by-catch, dolphin, dolphins, Fisheries, Indian Ocean, mammals, marine, marine mammal, Marine mammals, nets, Oman, sperm whale, whale, whales
@techreport{,
title = {A preliminary report of marine mammal fisheries in Djibouti, Oman and Sri Lanka.},
author = {Alling,A.},
year = {1983},
date = {1983-01-01},
volume = {NARA/SMMIO/SP32 presented to the Symposi},
number = {279},
pages = {1-8},
abstract = {During the voyage of the Tulip (Indian Ocean Sperm Whale project) fishermen and officials were interviewed at different ports of call. In Oman, officials "agreed" to the following: 1) There is a small dolphin fishery in Oman, primarily located off the Island of Masirah. 2) The extent of this fishery is questionable and it is not clear if there is any by-catch. 3) The meat is used for human consumption and as shark bait. 4) Whales are not hunted, but they are seldom caught in nets. 5) It was not clear if whale meat is eaten. Further, the paper focuses on bycatch and direct takes of dolphins in Sri Lanka, where estimates were placed at over 15,000 dolphins being by-caught in fisheries per year.},
keywords = {by-catch, dolphin, dolphins, Fisheries, Indian Ocean, mammals, marine, marine mammal, Marine mammals, nets, Oman, sperm whale, whale, whales},
pubstate = {published},
tppubtype = {techreport}
}
During the voyage of the Tulip (Indian Ocean Sperm Whale project) fishermen and officials were interviewed at different ports of call. In Oman, officials "agreed" to the following: 1) There is a small dolphin fishery in Oman, primarily located off the Island of Masirah. 2) The extent of this fishery is questionable and it is not clear if there is any by-catch. 3) The meat is used for human consumption and as shark bait. 4) Whales are not hunted, but they are seldom caught in nets. 5) It was not clear if whale meat is eaten. Further, the paper focuses on bycatch and direct takes of dolphins in Sri Lanka, where estimates were placed at over 15,000 dolphins being by-caught in fisheries per year.
Alling,G.,Gordon,J.,Rotton,N.,Whitehead,H.
Indian Ocean Sperm Whale study, 1981 - 1982 interim report Technical Report
no. 281, 1982.
Abstract | BibTeX | Tags: behaviour, dolphin, dolphins, Eubalaena glacialis, Fisheries, Humpback Whale, humpback whales, Indian Ocean, marine, marine mammal, megaptera novaeangliae, objectives, Oman, physeter, population, populations, sanctuaries, sperm whale, sperm whales, survey, whale, whales
@techreport{,
title = {Indian Ocean Sperm Whale study, 1981 - 1982 interim report},
author = {Alling,G.,Gordon,J.,Rotton,N.,Whitehead,H.},
year = {1982},
date = {1982-01-01},
number = {281},
pages = {1-43},
publisher = {WWF},
abstract = {The establishment of the Indian Ocean Whale Sanctuary in 1979 gave whale science an opportunity and a challenge: the opportunity to study protected whale; and the challenge to show that whale populations can be monitored purely through studies of living animals. The sperm whale (Physeter catodon), is commercially the most important, and the most numerous, large whale. It may be a significant link in the food web on account of returning nutrients from the deep ocean to the surface through its faeces. Analysis of the composition of sperm whale catches suggests that the sperm whale possesses a unique and interesting social system (Best 1979), a thorough knowledge of which is essential if these exceptional animals are to be properly protected.It was thus appropriate to carry out a study of the behaviour of the sperm whales in the Indian Ocean, principally using the methods developed on living right, grey and humpback whales, and the money raised by WWF-Netherlands. In order to obtain significant results it was thought necessary to have three field seasons of several months each.As very little was known of the whales of the Indian Ocean the first season consisted of a survey of those parts of the NW Indian Ocean which might have been suitable for studying sperm whales. During the survey methods of studying living sperm whales were to be developed, and other whales, dolphins, and marine mammal fisheries examined as circumstances permitted. From this survey we were to decide on the most suitable area and methods for studying sperm whales in subsequent seasons. We were also to recommend which other marine mammal research projects in the area should be undertaken, either as part of our project or separately.We report here on the first field season. Because of the deadline (within two weeks of the end of the field work) the data has not been rigorously analysed, and we can give only the most basic results. However we hope that this report indicates that the study was successful within its objectives.},
keywords = {behaviour, dolphin, dolphins, Eubalaena glacialis, Fisheries, Humpback Whale, humpback whales, Indian Ocean, marine, marine mammal, megaptera novaeangliae, objectives, Oman, physeter, population, populations, sanctuaries, sperm whale, sperm whales, survey, whale, whales},
pubstate = {published},
tppubtype = {techreport}
}
The establishment of the Indian Ocean Whale Sanctuary in 1979 gave whale science an opportunity and a challenge: the opportunity to study protected whale; and the challenge to show that whale populations can be monitored purely through studies of living animals. The sperm whale (Physeter catodon), is commercially the most important, and the most numerous, large whale. It may be a significant link in the food web on account of returning nutrients from the deep ocean to the surface through its faeces. Analysis of the composition of sperm whale catches suggests that the sperm whale possesses a unique and interesting social system (Best 1979), a thorough knowledge of which is essential if these exceptional animals are to be properly protected.It was thus appropriate to carry out a study of the behaviour of the sperm whales in the Indian Ocean, principally using the methods developed on living right, grey and humpback whales, and the money raised by WWF-Netherlands. In order to obtain significant results it was thought necessary to have three field seasons of several months each.As very little was known of the whales of the Indian Ocean the first season consisted of a survey of those parts of the NW Indian Ocean which might have been suitable for studying sperm whales. During the survey methods of studying living sperm whales were to be developed, and other whales, dolphins, and marine mammal fisheries examined as circumstances permitted. From this survey we were to decide on the most suitable area and methods for studying sperm whales in subsequent seasons. We were also to recommend which other marine mammal research projects in the area should be undertaken, either as part of our project or separately.We report here on the first field season. Because of the deadline (within two weeks of the end of the field work) the data has not been rigorously analysed, and we can give only the most basic results. However we hope that this report indicates that the study was successful within its objectives.
Ross,J.P.
Recent marine mammal sightings in the Sultanate of Oman (1980-1981) Technical Report
no. 462, 1981.
Abstract | BibTeX | Tags: breeding grounds, cetacean, cetaceans, dugong, feeding, Humpback Whale, humpback whales, Indian Ocean, marine, marine mammal, Oman, sanctuaries, Strandings, whale, whales
@techreport{,
title = {Recent marine mammal sightings in the Sultanate of Oman (1980-1981)},
author = {Ross,J.P.},
year = {1981},
date = {1981-01-01},
journal = {Report presented to the special meeting of the IWC to plan a programme of scientific research on cetaceans in the Indian Ocean Sanctuary, Zeist, Netherlands.},
volume = {Document 23},
number = {462},
abstract = {This brief report summarises observations of live cetaceans, strandings and interviews with local fishermen. The source of sighting and stranding information is not always clear - stranded specimens referred to in this report were curated at the Zoological Museum in Amsterdam and the ONHM are also summarised in Gallagher 1991. JPR describes one stranding of a Dugong near Barka. He also describes Masirah fishermen's observations of a large whale with "bumps on its head like coffee cups" and long white flippers that they slap on the surface. He concludes that these are almost certainly humpback whales "migrating between summer feeding and winter breeding grounds. He also suggests that they were feeding on sardines which were abundant in the region during "these months" (although months not specified). Although he indicates that Oman's coast is abundant in food, yet tropical and thus suitable for breeding, he does not explicitly suggest that the humpbacks are year-round residents.},
keywords = {breeding grounds, cetacean, cetaceans, dugong, feeding, Humpback Whale, humpback whales, Indian Ocean, marine, marine mammal, Oman, sanctuaries, Strandings, whale, whales},
pubstate = {published},
tppubtype = {techreport}
}
This brief report summarises observations of live cetaceans, strandings and interviews with local fishermen. The source of sighting and stranding information is not always clear - stranded specimens referred to in this report were curated at the Zoological Museum in Amsterdam and the ONHM are also summarised in Gallagher 1991. JPR describes one stranding of a Dugong near Barka. He also describes Masirah fishermen's observations of a large whale with "bumps on its head like coffee cups" and long white flippers that they slap on the surface. He concludes that these are almost certainly humpback whales "migrating between summer feeding and winter breeding grounds. He also suggests that they were feeding on sardines which were abundant in the region during "these months" (although months not specified). Although he indicates that Oman's coast is abundant in food, yet tropical and thus suitable for breeding, he does not explicitly suggest that the humpbacks are year-round residents.