killer whale population

Named after Springer Point on Sonora Island at the south end of Johnstone Strait, Springer (A73) is a young female killer whale who was born in 2000.

Named after Rivers Inlet off the central coast of British Columbia, Rivers (I128) is a young killer whale born in 2009.

The toxic pollutant affects reproductive and immune systems.

The Northwestern Hawaiian Islands insular population lives within just under 60 nautical miles of the chain’s small islets and banks from Gardner Pinnacles (midway along the chain) to Kauai, with occasional excursions to the west side of Oahu in the MHI. Spitfire is the second offspring of Magee (I51) and has two siblings: Cultus (I106) and Spiller (I144). He has four younger siblings: Current (A79), Cameleon (A79), Albion (A103), and Ashlar (A114). Named after Cutter Cove near Minstrel Island north of Johnstone Strait, Cutter (A86) is a female killer whale born in 2006. We do not yet know whether Barlow is male or female. Midsummer is the second and only surviving offspring of Ripple (A43) and has two calves of her own, Fern (A95) and Eliot (A109).

Due to the scarcity of suitable … Using a computer model and decades worth of data on 351 killer whales from around the world, the researchers predicted how orca populations will grow or shrink, based on survival rates and reproduction rates, and how those might change depending on the concentrations of PCBs in their bodies.

Such interactions with Hawaii-based longline fisheries have become a significant conservation issue for false killer whales within Hawaiian waters and on the high seas (in other words, within and beyond the U.S. “It is like a killer whale apocalypse,” Paul Jepson of the Zoological Society of London and part of the team behind the study told The Guardian. NIH Analyses of interactions data collected since the TRP was implemented in 2012 have indicated that the plan’s mitigation measures have largely failed to work. The Main Hawaiian Islands insular population occurs only in nearshore waters (within about 50 miles). Dusky is Misty (A62)'s eldest calf and has two younger siblings - Fantome (A91) and Blunden (A107). Using an individual-based model framework and globally available data on PCB concentrations in killer whale tissues, we show that PCB-mediated effects on reproduction and … NLM

In recent decades, several populations of killer whales have declined and some have become endangered. Within each pod, families form into sub-pods centered around older females, usually grandmothers or great-grandmothers.

Clio is also grandmother to Bend’s calf, Jamieson (A108). Named after Kamux Island near Swanson Island, Kamux (A101) is a young female killer whale, born in 2012. Robin W Baird, SD Mahaffy, AM Gorgone, T Cullins, DJ McSweeney, EM Oleson, AL Bradford, J Barlow, and DL Webster. False killer whales and fisheries interactions in Hawaiian waters: Evidence for sex bias and variation among populations and social groups. Named after Cameleon Harbour on Sonora Island, Cameleon (A88) is a young female killer whale born in 2008. Marine Mammal Science 24(3): 591-612, Marine Mammal Commission: An Independent Agency of the U.S. Government, Provisions for Managing Fisheries Interactions, Marine Mammal Commission Annual Reports to Congress. The Hawaiian pelagic population is found up to hundreds of miles from the archipelago, with groups occasionally approaching as close as roughly 7 nautical miles of the Main Hawaiian Island. PCBs entered the environment during the manufacturing process or after they were dumped in landfills. Before they were banned, PCBs were used in oils, paints, electrical insulators, capacitors, and electric appliances like TVs and refrigerators. In late 2018, the team was close to making consensus recommendations to NMFS designed to remedy the failure (see meeting notes), however little progress has been made since. Upon consideration of the TRT’s recommendations and evaluation of all relevant circumstances, the Secretary of Commerce decides that reopening is warranted.

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