Results 61 to 70 of about 36,102 (299)
Wanted Dead or Alive? The Relative Value of Reef Sharks as a Fishery and an Ecotourism Asset in Palau [PDF]
, 2011 Over the last 20 years, ecotourism to view and interact with marine megafauna has become increasingly popular (Higham and Lück 2008). Examples of this type of tourism include turtle and whale watching, snorkelling with seals and shark diving (Jacobson ...
D. Pannell +4 more
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Temporal and spatial distributions of delphinid species in Massachusetts Bay (USA) using passive acoustics from ocean gliders [PDF]
, 2019 © The Author(s), 2020. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Silva, T. L., Mooney, T. A., Sayigh, L. S., & Baumgartner, M. F.
Baumgartner, Mark F. +3 more
core +1 more source
The Anatomical Record, EarlyView.This work brings new information on the sexual characteristics of the crocodile shark (Pseudocarcharias kamoharai) exploring the pelvic fin musculature, as well as the siphon sac and the musculature and skeleton of the clasper. Our paper is the first to point out clearly the sexual dimorphism related exclusively to the pelvic fin musculature in males ...
Laura F. Mianutti +2 more
wiley +1 more source
The Anatomical Record, EarlyView.Abstract Despite the distinctly different shapes of their tongues, the tongue gross anatomy of Saimaa ringed seal closely resembled that of Baltic ringed seal. There were no differences in the extrinsic and intrinsic tongue muscles or their associated vascularization and innervation between Saimaa and Baltic ringed seals.
Juha Laakkonen, Heini Nihtilä
wiley +1 more source
The Relationship between Vessel Traffic and Noise Levels Received by Killer Whales (Orcinus orca). [PDF]
PLoS ONE, 2015 Whale watching has become increasingly popular as an ecotourism activity around the globe and is beneficial for environmental education and local economies.
Juliana Houghton +7 more
doaj +1 more source
Soundings: the Newsletter of the Monterey Bay Chapter of the American Cetacean Society. 2006 [PDF]
, 2006 (PDF contains 88 pages.
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Responsible whale watching and whale welfare
Animal Welfare, 2013 Whale watching is defined as tours by air, sea or land to view any of the 86 reported species of whales, dolphins and porpoises in their natural habitat where a commercial aspect exists (IFAW 1999). Whale-watching platforms include small boats, sailboats, cruise ships, inflatables, kayaks, helicopters and airplanes, and the activity can also include ...
openaire +1 more source
Archaeological Prospection, EarlyView.ABSTRACT This study presents a strong framework for the detection and classification of Submerged Cultural Heritage Assets (SCHA) in shallow marine environments using the integration of multibeam echosounder and airborne LiDAR bathymetry with object‐based image analysis and fuzzy logic–based classification.
Łukasz Janowski +4 more
wiley +1 more source
Soundings: the Newsletter of the Monterey Bay Chapter of the American Cetacean Society. 2004 [PDF]
, 2004 (PDF contains 92 pages.
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Biological Reviews, EarlyView.ABSTRACT Among the vertebrates, mammals are notable for the dominance of live birth and placental nutrition. The structural diversity of the mammalian placenta is remarkable, despite sharing a single common ancestor and conserved physiological functions.
Davis Laundon +5 more
wiley +1 more source