OREHP Hatchery
Established in 1995, HSWRI’s Leon Raymond Hubbard Jr., Marine Fish Hatchery is a White Seabass broodstock hatchery built specifically for this purpose in Carlsbad, California. With base funding from the California Department of Fish and Wildlife, HSWRI’s team raises, tags, and releases millions of juvenile fish spawned by the resident hatchery broodstock. We also conduct […]
SeaWorld San Diego Related Research
When the Institute was incorporated as a non-profit by the founders of SeaWorld a year before the first SeaWorld opened in San Diego, their intent was to promote the study of marine animals toward the benefit of wild populations. Observing this conservation ethos, SeaWorld has sustained HSWRI scientists’ access to its zoological collections toward advancing a […]
Ratite Noise Study
Noise study on emus’ reactions to aircraft Publication:Bowles, A.E., E. Berg, and N. Abraham, 1997. Effects of Low-Altitude Overflights on Ratities. PP 646-651. In Proceedings of the 7th International Congress of the Biological Effects of Noise, 22-26 November, Sydney, Australia
Greenland Ringed Seals
We monitored movements and haul-out patterns of four ringed seals Phoca hispida, off Northwest Greenland between 5 June and 31 October 1988 using the Argos Data Collection and Location System. When the seals were hauled out on fast ice their locations were accurately determined, but when they were at sea, few accurate locations were obtained, evidently […]
White Seabass Grow Out Pens
Volunteer groups are vital for HSWRI’s white seabass replenishment program. Fish are grown to appropriate sizes at various locations and released throughout the southern California bight.
Whale Surveys
Randomized aerial surveys were flown between 26 July and 26 August 1984 to search for cetaceans in two areas of southwestern Alaska on both Bering Sea and Pacific Ocean sides of the Aleutian Islands. Sightings were made of gray whales, fin whales, minke whales, beaked whales, killer whales and harbor porpoises. The low number of […]
Dolphin Boat Surveys
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 critical to monitoring and managing dolphin populations that are consistently exposed to unexplained mortality events and increasing prevalence of human impacts. […]
Baiji Dolphins
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 Endangered by IUCN, and had been legally protected in China since 1975. After surveying the current river range […]
American Marten
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 vulnerable to this disturbance because martens, like other residents of high-elevation forests, are associated with remote wilderness conditions where the presence of motorized vehicles is […]
Northern Spotted Owls
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 misguided environmental protection, but many environmentalists view the owl as an indicator species, whose preservation has created protection for […]