Stock identity of beluga (<i>Delphinapterus leucas</i>) in Eastern Canada and West Greenland based on organochlorine contaminants in their blubber
Belugas (Delphinapterus leucas) caught by hunters from various hamlets in the Arctic differed in the concentrations of organochlorine contaminants in their blubber. By applying Canonical Discriminant Analysis (CDA) it was possible to separate all seven sampling locations from each other. Over 90% of...
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| Format: | Article |
| Language: | English |
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Septentrio Academic Publishing
2002-07-01
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| Series: | NAMMCO Scientific Publications |
| Subjects: | |
| Online Access: | https://septentrio.uit.no/index.php/NAMMCOSP/article/view/2837 |
| _version_ | 1818055328095272960 |
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| author | Stuart Innes Derek CG Muir Robert EA Stewart Mads Peter Heide-Jørgensen Rune Dietz |
| author_facet | Stuart Innes Derek CG Muir Robert EA Stewart Mads Peter Heide-Jørgensen Rune Dietz |
| author_sort | Stuart Innes |
| collection | DOAJ |
| description | Belugas (Delphinapterus leucas) caught by hunters from various hamlets in the Arctic differed in the concentrations of organochlorine contaminants in their blubber. By applying Canonical Discriminant Analysis (CDA) it was possible to separate all seven sampling locations from each other. Over 90% of the samples could be classified back to their landing location based on the data transformations developed by CDA. This analysis suggested that “stock” or management unit for belugas is best described by the culturally transmitted behaviour of their migration route. The analysis also provides evidence that most belugas caught by hunters from Grise Fiord are not the same as belugas caught while migrating along West Greenland; that some belugas caught in Sanikiluaq are not the same as beluga caught in the Nastapoka River estuary; and that the belugas caught in Kimmirut are not the same as belugas caught in Cumberland Sound. There is a need to redefine the stock descriptions of some belugas in Canada and Greenland. |
| first_indexed | 2024-12-10T12:11:12Z |
| format | Article |
| id | doaj.art-e5e486d5edf543be9b5639844a48ce36 |
| institution | Directory Open Access Journal |
| issn | 1560-2206 2309-2491 |
| language | English |
| last_indexed | 2024-12-10T12:11:12Z |
| publishDate | 2002-07-01 |
| publisher | Septentrio Academic Publishing |
| record_format | Article |
| series | NAMMCO Scientific Publications |
| spelling | doaj.art-e5e486d5edf543be9b5639844a48ce362022-12-22T01:49:21ZengSeptentrio Academic PublishingNAMMCO Scientific Publications1560-22062309-24912002-07-0140516810.7557/3.28372630Stock identity of beluga (<i>Delphinapterus leucas</i>) in Eastern Canada and West Greenland based on organochlorine contaminants in their blubberStuart Innes0Derek CG Muir1Robert EA Stewart2Mads Peter Heide-Jørgensen3Rune Dietz4Freshwater Institute, Central and Arctic Region, Fisheries and Oceans Canada, 501 University Crescent, Winnipeg, Manitoba, R3T 2N6Environment Canada, National Water Research Institute, 867 Lakeshore Road, Burlington, Ontario L7R 4A6 and Freshwater Institute, Central and Arctic Region, Fisheries and Oceans Canada, 501 University Crescent, Winnipeg, Manitoba, R3T 2N6Freshwater Institute, Central and Arctic Region, Fisheries and Oceans Canada, 501 University Crescent, Winnipeg, Manitoba, R3T 2N6Greenland Institute of Natural Resources, c/o National Marine Mammal laboratory, 7600 Sand Point Way NE, Seattle, WA 98115 USADepartment of Arctic Environment, National Environmental Research Institute, Box 358, Frederiksborgvej 399, DK-4000 RoskildeBelugas (Delphinapterus leucas) caught by hunters from various hamlets in the Arctic differed in the concentrations of organochlorine contaminants in their blubber. By applying Canonical Discriminant Analysis (CDA) it was possible to separate all seven sampling locations from each other. Over 90% of the samples could be classified back to their landing location based on the data transformations developed by CDA. This analysis suggested that “stock” or management unit for belugas is best described by the culturally transmitted behaviour of their migration route. The analysis also provides evidence that most belugas caught by hunters from Grise Fiord are not the same as belugas caught while migrating along West Greenland; that some belugas caught in Sanikiluaq are not the same as beluga caught in the Nastapoka River estuary; and that the belugas caught in Kimmirut are not the same as belugas caught in Cumberland Sound. There is a need to redefine the stock descriptions of some belugas in Canada and Greenland.https://septentrio.uit.no/index.php/NAMMCOSP/article/view/2837belugasDelphinapterus leucascontaminantsstock structure |
| spellingShingle | Stuart Innes Derek CG Muir Robert EA Stewart Mads Peter Heide-Jørgensen Rune Dietz Stock identity of beluga (<i>Delphinapterus leucas</i>) in Eastern Canada and West Greenland based on organochlorine contaminants in their blubber NAMMCO Scientific Publications belugas Delphinapterus leucas contaminants stock structure |
| title | Stock identity of beluga (<i>Delphinapterus leucas</i>) in Eastern Canada and West Greenland based on organochlorine contaminants in their blubber |
| title_full | Stock identity of beluga (<i>Delphinapterus leucas</i>) in Eastern Canada and West Greenland based on organochlorine contaminants in their blubber |
| title_fullStr | Stock identity of beluga (<i>Delphinapterus leucas</i>) in Eastern Canada and West Greenland based on organochlorine contaminants in their blubber |
| title_full_unstemmed | Stock identity of beluga (<i>Delphinapterus leucas</i>) in Eastern Canada and West Greenland based on organochlorine contaminants in their blubber |
| title_short | Stock identity of beluga (<i>Delphinapterus leucas</i>) in Eastern Canada and West Greenland based on organochlorine contaminants in their blubber |
| title_sort | stock identity of beluga i delphinapterus leucas i in eastern canada and west greenland based on organochlorine contaminants in their blubber |
| topic | belugas Delphinapterus leucas contaminants stock structure |
| url | https://septentrio.uit.no/index.php/NAMMCOSP/article/view/2837 |
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