CARCASS OF A BOWHEAD WHALE (BALAENA-MYSTICETUS) FOUND IN THE LATERAL-MORAINE OF THE JEMELIANOVBREEN GLACIER, EASTERN SVALBARD

Authors
Citation
I. Lonne et E. Fuglei, CARCASS OF A BOWHEAD WHALE (BALAENA-MYSTICETUS) FOUND IN THE LATERAL-MORAINE OF THE JEMELIANOVBREEN GLACIER, EASTERN SVALBARD, Polar research, 16(1), 1997, pp. 9-18
Citations number
22
Categorie Soggetti
Geosciences, Interdisciplinary",Oceanografhy
Journal title
ISSN journal
08000395
Volume
16
Issue
1
Year of publication
1997
Pages
9 - 18
Database
ISI
SICI code
0800-0395(1997)16:1<9:COABW(>2.0.ZU;2-W
Abstract
An 8 m long carcass of a bowhead whale (Balaena mysticetus) melted out from remnant glacier ice in the lateral moraine of the Jemelianovbree n glacier in August 1996. Folded and sheared sediment bands in the ice suggest that the whale was incorporated during an advance of me glaci er. The whale's longitudinal axis was oriented parallel to the directi on of the ice-flow, with the thinnest posterior part dipping upflow. T he posterior section was best preserved with muscles and blubber, alth ough the entire skin surface was strongly decomposed and only a thick fibrous surface was left of the blubber. The abdominal wall was holed, most likely by marine organisms, and partly filled with a compacted m ixture of well-sorted gravelly beach sediments and fat. The whale seem s to have been incorporated into the glacier together with glaciomarin e sediments and carried by the flowing ice to an altitude of ca. 15 m. Jemelianovbreen is a tidewater glacier with two known surge-episodes. The first and most extensive of these occurred ca. 1900 AD and reache d ca. 7 km outside the present coast-line. Radiocarbon dating of a fra gment of a caudal vertebra yielded 345 +/- 40 C-14 years BP (1535-1660 cal. AD), suggesting that the whale lived some time during the last p ar? of the cold period known as the Little Ice Age.