From 1986 to 1996 we examined the reproductive rates, calving rates, and reproductive histories of mature females as part of

Locomotor activity by diving marine mammals is accomplished while breath-holding and often exceeds predicted aerobic capacities. Video sequences of freely

The human contribution to ambient noise in the ocean has increased over the past 50 years, and is dominated by

The acoustic calls of blue whales off California are described with visual observations of behavior and with acoustic tracking. Acoustic

Although the Ziphiidae are the second-most speciose family of cetaceans, information on beaked whale species and populations has been limited

‘‘Southern Resident’’ killer whales include three ‘‘pods’’ (J, K and L) that reside primarily in Puget Sound/Georgia Basin during the

Emerging infectious diseases are among the main threats to conservation of biological diversity. A crucial task facing epidemiologists is to

Organochlorine (OC) contaminant concentrations in tissues and lipid profiles in blubber are summarised for 101 gray whales (Eschrichtius robustus) from

Despite the extensive use of photographic identification methods to investigate humpback whales in the North Pacific, few quantitative analyses have

This study documents the range, abundance and movements of a feeding aggregation of gray whales (Eschrichtius robustus) in the Pacific