Dolphin Boat Surveys

Boat surveys of dolphin populations Our team is committed to monitoring dolphin health and distribution along the east coast of Florida including the Indian River Lagoon and the Halifax River Estuary. Vessel-based survey efforts provide abundance estimates that are...

Baiji Dolphins

Yangtze River Dolphin Survey HSWRI researchers participated in a survey on the Yangtze River, searching for both the Yangtze finless porpoise and the rarer baiji. These porpoises are the only freshwater population of porpoises in the world, have been listed as...

American Marten

Effect of Vehicle Noise on American Martens Motorized recreation in North American wildlands is increasing, and technological developments in the power and range of vehicles has increased access to high-elevation habitats. The American marten (Martes americana) is...

Northern Spotted Owls

Threats to the northern spotted owl The iconic northern spotted owl was first listed as threatened in 1990, which led to 80% reduced logging in federal forests. Timber interests and conservatives have cited the northern spotted owl as an example of excessive or...

White Seabass Replenishment

White Seabass Research We evaluate post-release dispersal, growth and survival of hatchery-reared white seabass (Atractoscion nobilis) released as part of an experimental stock enhancement program in California. Releases of hatchery white seabass have been carried out...

Stock Enhancement

Responsible Stock Enhancement The evolutionary effects captive-bred individuals that can have on wild conspecifics are necessary considerations for stock enhancement programs, but breeding protocols are often developed without the knowledge of realized reproductive...