Gore, M. A.,Culloch, R,Gray, H.,Hoelzel, A. R.,Lockyer, C.,Kiani, M. S.,Waqas, U,Hussain, B,Rahim, Abdul,Shah, A.,Ormond, R. F.
Assessment of beach-cast cetaceans in Pakistan: implications for conservation and management Journal Article
In: Journal of Cetacean Research and Management, vol. 16, no. 104, pp. 1-7, 2017.
Abstract | BibTeX | Tags: aging, Arabian Sea, balaenoptera edeni, beach survey, Bryde’s whale, carcass analysis, genetics, Pakistan, stranding
@article{,
title = {Assessment of beach-cast cetaceans in Pakistan: implications for conservation and management},
author = {Gore, M. A.,Culloch, R,Gray, H.,Hoelzel, A. R.,Lockyer, C.,Kiani, M. S.,Waqas, U,Hussain, B,Rahim, Abdul,Shah, A.,Ormond, R. F.},
year = {2017},
date = {2017-01-01},
journal = {Journal of Cetacean Research and Management},
volume = {16},
number = {104},
pages = {1-7},
abstract = {Until recently, little was known about the distribution and species occurrence of marine cetaceans in Pakistani waters, an area which needed to be
addressed exigently given its inclusion in the Indian Ocean Whale Sanctuary. Boat-based surveys (2005–09) carried out along the coast of Pakistan
identified 12 species of cetaceans. Although these surveys can be very useful for providing information on species presence and distribution,
estimates of the age and sex of these groups can be more uncertain. Consequently, this present study undertook complementary beach-based surveys
over the same period across all accessible regions of the Pakistani coast and created a community reporting scheme for stranded and beach-cast
remains of cetaceans. Tissue samples and/or skeletal material were collected over three years from 37 individual specimens, with DNA successfully
extracted from 24. Using molecular techniques, a total of seven species were identified and there was an indication that the majority of the samples
were from males. An analysis of teeth collected from 12 beach-cast odontocetes showed an age range between neonatal and 17 years. The results
of this study corroborate the presence of species observed during the boat-based surveys and identified a further three species. The data also provide
additional information on age and sex. A comparison with similar studies suggests that the stranding rate is low in Pakistan. No mass strandings
occurred during the seven year monitoring period. The results indicate that beach-based surveys are effective for gathering data on species presence
in regions where resources are limited, the terrain is harsh and availability of data is low. Ultimately, the results of this work will help with assessing
the conservation status and management requirements of the region’s cetaceans, both locally and internationally with respect to the Indian Ocean
Whale Sanctuary. Species identified were 4 bottlenose
dolphins (Tursiops sp.), 6 long-beaked common dolphins, 1
spinner dolphin, 4 Indian Ocean humpback dolphins, 1 pantropical
spotted dolphin (Stenella attenuata) and 5 Bryde’s
whales},
keywords = {aging, Arabian Sea, balaenoptera edeni, beach survey, Bryde’s whale, carcass analysis, genetics, Pakistan, stranding},
pubstate = {published},
tppubtype = {article}
}
Until recently, little was known about the distribution and species occurrence of marine cetaceans in Pakistani waters, an area which needed to be
addressed exigently given its inclusion in the Indian Ocean Whale Sanctuary. Boat-based surveys (2005–09) carried out along the coast of Pakistan
identified 12 species of cetaceans. Although these surveys can be very useful for providing information on species presence and distribution,
estimates of the age and sex of these groups can be more uncertain. Consequently, this present study undertook complementary beach-based surveys
over the same period across all accessible regions of the Pakistani coast and created a community reporting scheme for stranded and beach-cast
remains of cetaceans. Tissue samples and/or skeletal material were collected over three years from 37 individual specimens, with DNA successfully
extracted from 24. Using molecular techniques, a total of seven species were identified and there was an indication that the majority of the samples
were from males. An analysis of teeth collected from 12 beach-cast odontocetes showed an age range between neonatal and 17 years. The results
of this study corroborate the presence of species observed during the boat-based surveys and identified a further three species. The data also provide
additional information on age and sex. A comparison with similar studies suggests that the stranding rate is low in Pakistan. No mass strandings
occurred during the seven year monitoring period. The results indicate that beach-based surveys are effective for gathering data on species presence
in regions where resources are limited, the terrain is harsh and availability of data is low. Ultimately, the results of this work will help with assessing
the conservation status and management requirements of the region’s cetaceans, both locally and internationally with respect to the Indian Ocean
Whale Sanctuary. Species identified were 4 bottlenose
dolphins (Tursiops sp.), 6 long-beaked common dolphins, 1
spinner dolphin, 4 Indian Ocean humpback dolphins, 1 pantropical
spotted dolphin (Stenella attenuata) and 5 Bryde’s
whales
addressed exigently given its inclusion in the Indian Ocean Whale Sanctuary. Boat-based surveys (2005–09) carried out along the coast of Pakistan
identified 12 species of cetaceans. Although these surveys can be very useful for providing information on species presence and distribution,
estimates of the age and sex of these groups can be more uncertain. Consequently, this present study undertook complementary beach-based surveys
over the same period across all accessible regions of the Pakistani coast and created a community reporting scheme for stranded and beach-cast
remains of cetaceans. Tissue samples and/or skeletal material were collected over three years from 37 individual specimens, with DNA successfully
extracted from 24. Using molecular techniques, a total of seven species were identified and there was an indication that the majority of the samples
were from males. An analysis of teeth collected from 12 beach-cast odontocetes showed an age range between neonatal and 17 years. The results
of this study corroborate the presence of species observed during the boat-based surveys and identified a further three species. The data also provide
additional information on age and sex. A comparison with similar studies suggests that the stranding rate is low in Pakistan. No mass strandings
occurred during the seven year monitoring period. The results indicate that beach-based surveys are effective for gathering data on species presence
in regions where resources are limited, the terrain is harsh and availability of data is low. Ultimately, the results of this work will help with assessing
the conservation status and management requirements of the region’s cetaceans, both locally and internationally with respect to the Indian Ocean
Whale Sanctuary. Species identified were 4 bottlenose
dolphins (Tursiops sp.), 6 long-beaked common dolphins, 1
spinner dolphin, 4 Indian Ocean humpback dolphins, 1 pantropical
spotted dolphin (Stenella attenuata) and 5 Bryde’s
whales