How deep can baleen whales dive?
نویسندگان
چکیده
منابع مشابه
Lethal entanglement in baleen whales.
Understanding the scenarios whereby fishing gear entanglement of large whales induces mortality is important for the development of mitigation strategies. Here we present a series of 21 cases involving 4 species of baleen whales in the NW Atlantic, describing the available sighting history, necropsy observations, and subsequent data analyses that enabled the compilation of the manners in which ...
متن کاملHow whales used to filter: exceptionally preserved baleen in a Miocene cetotheriid
Baleen is a comb-like structure that enables mysticete whales to bulk feed on vast quantities of small prey, and ultimately allowed them to become the largest animals on Earth. Because baleen rarely fossilises, extremely little is known about its evolution, structure and function outside the living families. Here we describe, for the first time, the exceptionally preserved baleen apparatus of a...
متن کاملSouthern Ocean iron fertilization by baleen whales and Antarctic krill
Department of the Environment, Water, Heritage and the Arts, Australian Antarctic Division, 203 Channel Highway, Kingston, Tas. 7050, Australia; Antarctic Climate and Ecosystems Cooperative Research Centre, University of Tasmania, Private Bag 80, Hobart, Tas. 7001, Australia; Department of the Environment, Water, Heritage and the Arts, Australian Antarctic Division, Australian Marine Mammal Cen...
متن کاملBaleen whales: preliminary evidence for forestomach microbial fermentation.
Baleen whales have a multichambered stomach divided into three distinct compartments. The forestomach (first compartment) consists of noncornified and nonglandular tissue and appears to be analogous to the tissue of the rumen. The exact function of the forestomach is unknown; however, we have detected volatile fatty acids in forestomach samples from seven bowhead (Balaena mysticetus) and four g...
متن کاملThermoregulation in feeding baleen whales: Morphological and physiological evidence
Gray whales (Eschrichtius robutus) expose their immense oral cavities repeatedly to frigid waters when feeding. Morphological structures for heat conservation in the tongues of gray whales are described here in detail. Numerous individual countercurrent heat exchangers converge at the base of the tongue to form a bilateral pair of vascular bundles called the lingual rete. Temperature measuremen...
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ژورنال
عنوان ژورنال: Marine Ecology Progress Series
سال: 1999
ISSN: 0171-8630,1616-1599
DOI: 10.3354/meps187309