Movements of the First Satellite-tagged Cuvier’s and Blainville’s Beaked Whales in Hawai‘i

Movements of Satellite-tagged Cuvier’s and Blainville’s Beaked Whales in Hawai‘i: Evidence for an Offshore Population of Blainville’s Beaked Whales

Site Fidelity, Associations, and Movements of Cuvier’s (ziphius Cavirostris) and Blainville’s (mesoplodon Densirostris) Beaked Whales off the Island of Hawai‘i

Although the Ziphiidae are the second-most speciose family of cetaceans, information on beaked whale species and populations has been limited by the difficulties in finding and approaching free-ranging individuals. Site fidelity, patterns of association, and movements of two species, Cuvier’s (Ziphius cavirostris) and Blainville’s (Mesoplodon densirostris) beaked whales, were assessed using a 2...

Movements of satellite-tagged Blainville’s beaked whales off the island of Hawai‘i

Studies of movement patterns and habitat use in cetaceans are often constrained by factors such as ship time, logistics, and the ability to follow individuals over time. Obtaining this information on beaked whales is especially difficult, yet the information is critical to their management and conservation, particularly in light of their susceptibility to naval sonar. To better understand the m...

Diel Variation in Beaked Whale Diving Behavior

We investigate diel variation in beaked whale diving behavior using data from timedepth recorders deployed on six Blainville’s (Mesoplodon densirostris) beaked whales (126 hours day; 129 hours night) and two Cuvier’s (Ziphius cavirostris) beaked whales (19 hours day; 15 hours night). Deep foraging dives (>800 m) occurred at similar rates during the day and night for Blainville’s beaked whales (...

Biologically Important Areas for Cetaceans Within U . S . Waters – Hawai ‘ i Region

Of the 18 species of odontocetes known to be present in Hawaiian waters, small resident populations of 11 species—dwarf sperm whales, Blainville’s beaked whales, Cuvier’s beaked whales, pygmy killer whales, short-finned pilot whales, melonheaded whales, false killer whales, pantropical spotted dolphins, spinner dolphins, rough-toothed dolphins, and common bottlenose dolphins—have been identifie...