Dolphin Associations

Dolphin social associations from calf to juvenile In many long-lived mammalian species, association patterns between individuals have been found to influence sociality, behavioral traits, survival, and longevity. In common bottlenose dolphins (Tursiops truncatus), the...

Killer Whale Interactions

Eliminating interactions between killer whales and longline fisheries Increased sablefish or black cod (Anoplopoma fimbria) catches in the 1980s in Prince William Sound and the Bering Sea lead to more reports of killer whales interfering with fishing vessels by...

Desert Tortoises

Hearing and metabolism of desert tortoises Testudinates (turtles and tortoises) have been characterized as deaf because many species exhibit little response to sounds in their environment. However, they possess auditory organs, and several species of tortoises,...

Baikal Seals

Baikal seal seasonal movements and dive patterns The Baikal seal (Phoca sibirica) is confined to Lake Baikal in southern Siberia. The breeding distribution of seals in winter, when the lake is frozen over, is fairly well known, whereas their movements and foraging...

Sea Turtle Recovery

Pacific Sea Turtle Recovery HSWRI staff served as the Team Leader of the Pacific Sea Turtle Recovery Team,  professional biologists experienced with marine turtles in the Pacific region who drafted recovery plans for species of turtle in 1998. All six species of...

Florida Leatherback Turtles

Leatherback turtle tracking We tracked 10 leatherback turtles by satellite from 2 Florida Atlantic Coast nesting beaches for a period ranging from 38 days to more than 454 days. Movement and foraging areas were often coastal, which contrasts with other satellite...