| a real-time method for autonomous passive acoustic detection-classification of humpback whales. | this paper describes a method for real-time, autonomous, joint detection-classification of humpback whale vocalizations. the approach adapts the spectrogram correlation method used by mellinger and clark [j. acoust. soc. am. 107, 3518-3529 (2000)] for bowhead whale endnote detection to the humpback whale problem. the objective is the implementation of a system to determine the presence or absence of humpback whales with passive acoustic methods and to perform this classification with low false a ... | 2010 | 21117740 |
| a bayesian approach for understanding the role of ship speed in whale-ship encounters. | mandatory or voluntary reductions in ship speed are a common management strategy for reducing deleterious encounters between large ships and large whales. this has produced strong resistance from shipping and marine transportation entities, in part because very few studies have empirically demonstrated whether or to what degree ship speed influences ship-whale encounters. here we present the results of four years of humpback whale sightings made by observers aboard cruise ships in alaska, repres ... | 2011 | 21939057 |
| spatial pattern analysis of cruise ship-humpback whale interactions in and near glacier bay national park, alaska. | understanding interactions between large ships and large whales is important to estimate risks posed to whales by ships. the coastal waters of alaska are a summer feeding area for humpback whales (megaptera novaeangliae) as well as a prominent destination for large cruise ships. lethal collisions between cruise ships and humpback whales have occurred throughout alaska, including in glacier bay national park (gbnp). although the national park service (nps) establishes quotas and operating require ... | 2012 | 21983996 |
| seasonal variability and detection range modeling of baleen whale calls in the gulf of alaska, 1999-2002. | five species of large whales, including the blue (balaenoptera musculus), fin (b. physalus), sei (b. borealis), humpback (megaptera novaeangliae), and north pacific right (eubalaena japonica), were the target of commercial harvests in the gulf of alaska (goa) during the 19th through mid-20th centuries. since this time, there have been a few summer time visual surveys for these species, but no overview of year-round use of these waters by endangered whales primarily because standard visual survey ... | 2007 | 18247747 |