Author: Publisher:
ISBN:
Category : Killer whale
Languages : en
Pages : 9
Book Description
Impact of at Sea Disposal on Resident Killer Whale (Orcinus Orca) Critical Habitat
Author: Ocean Disposal in Resident Killer Whale (Orcinus Orca) Critical Habitat
Author: Impact of at sea disposal on resident killer whale (Orcinus orca) critical habitat
Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 0
Book Description
A PCB food web modeling tool was developed to explore hypothetical scenarios related to disposal at sea of dredged sediment material, evaluate the contaminant risks associated with possible disposal practices on resident killer whales and their habitat, and facilitate the development of risk management practices and protocols. [...] Disposing of dredge materials into killer whale Critical Habitat in particular, and to a lesser extent their habitat in general, containing PCBs at concentrations that are higher than the ambient PCB concentrations, are predicted to increase the delivery of PCBs to killer whale food webs. [...] The contamination of killer whale food webs is due to a combination of their proximity to pollution sources and the amplification of chemicals with persistent, bioaccumulative and toxic properties (PBT chemicals) through the food web. [...] The analysis undertaken here comprises a multi- faceted scientific effort to provide advice as to whether PCBs in dredge materials, deposited in any area of killer whale habitat, increase the risk of harm or mortality of northern and southern resident killer whales. [...] These results underscore the legacy attributable to a class of chemicals that were banned over 30 years ago in Canada, and emphasize the value of source control and regulations that prevent widespread contamination of the marine environment.
Vessel Presence and Acoustic Environment Within Southern Resident Killer Whale (Orcinus Orca) Critical Habitat in the Salish Sea and Swiftsure Bank Area
Author: Svein VaglePublisher:
ISBN: 9780660402383
Category : Killer whale
Languages : en
Pages : 66
Book Description
Areas of Elevated Risk for Vessel-related Physical and Acoustic Impacts in Southern Resident Killer Whale (Orcinus Orca) Critical Habitat
Author: Sheila J. ThorntonPublisher:
ISBN: 9780660449227
Category : Killer whale
Languages : en
Pages : 0
Book Description
Endangered and Threatened Species - Designation of Critical Habitat for Southern Resident Killer Whale (Us National Oceanic and Atmospheric Administration Regulation) (Noaa) (2018 Edition)
Author: The Law LibraryPublisher: Independently Published
ISBN: 9781792989384
Category :
Languages : en
Pages : 36
Book Description
The Law Library presents the complete text of the Endangered and Threatened Species - Designation of Critical Habitat for Southern Resident Killer Whale (US National Oceanic and Atmospheric Administration Regulation) (NOAA) (2018 Edition). Updated as of May 29, 2018 We, the National Marine Fisheries Service (NMFS), issue a final rule designating critical habitat for the Southern Resident killer whale (Orcinus orca) distinct population segment (DPS). Three specific areas are designated, (1) the Summer Core Area in Haro Strait and waters around the San Juan Islands; (2) Puget Sound; and (3) the Strait of Juan de Fuca, which comprise approximately 2,560 square miles (6,630 sq km) of marine habitat. We considered the economic impacts and impacts to national security, and concluded the benefits of exclusion of 18 military sites, comprising approximately 112 square miles (291 sq km), outweighed the benefits of inclusion because of national security impacts. This ebook contains: - The complete text of the Endangered and Threatened Species - Designation of Critical Habitat for Southern Resident Killer Whale (US National Oceanic and Atmospheric Administration Regulation) (NOAA) (2018 Edition) - A dynamic table of content linking to each section - A table of contents in introduction presenting a general overview of the structure
Southern Resident Killer Whales (Orcinus Orca)
Author: Deborah A. GilesPublisher:
ISBN: 9781321016574
Category :
Languages : en
Pages :
Book Description
This dissertation concerns the southern resident killer whales (Orcinus orca), a genetically isolated population of fish-eating killer whales that frequent the international waters of the Salish Sea between the United States and Canada in the eastern Pacific Ocean. Research was conducted from June 1 to October 31, 2007 and from June 7 to October 31, 2008, between geographic coordinates: 48°12' to 49° N latitude by 122°43' to 123°50° W longitude. The southern resident killer whale population has experienced multiple fluctuations since population surveys were initiated by the Center for Whale Research (CWR) in the mid 1970's. In November 2005, the U.S. National Oceanic and Atmospheric Administration's National Marine Fisheries Service (NMFS), Northwest Regional Office listed the southern resident killer whales as an endangered distinct population segment of the species Orcinus orca under the United States Endangered Species Act (ESA). Several risk factors including reductions in the quantity and quality of prey (salmon), exposure to persistent toxins, and disturbance from vessel presence and associated noise were identified as contributing to the decline of this already small population. With the listing under the ESA, critical habitat was designated in the inland waters around the U.S. San Juan Islands, Washington State and the Canadian Gulf Islands, British Columbia, Canada. Chapter one, Managing Vessel-based Killer Whale Watching: A Critical Assessment of the Evolution from Voluntary Guidelines to Regulations in the Salish Sea, provides background on the southern resident killer whales and the robust international whale watching industry in the region. This chapter also provides a detailed history of local, state, federal and international vessel laws and guidelines for watching whales in the Salish Sea. Chapter two, Non-invasive methods to study southern resident killer whales and vessel compliance with regulations, describes a novel equipment package, consisting of a differential GPS integrated with a digital compass and laser rangefinder that allowed me to collect accurate geo-referenced locations and behavioral data on whales and vessels throughout the whale's critical habitat. To improve both the spatial and temporal data on whale-vessel interactions, the information collected with this equipment was used to assess vessel compliance with local, state and federal laws and the regionally accepted best-practices Be Whale Wise Guidelines. Chapter three, The effects of vessels on group cohesion and behavior of southern resident killer whales (Orcinus orca), discusses research investigating changes in killer whale group cohesion in response to vessel density, distance and mode of operation. Future cetacean studies would benefit from using the equipment and methods presented here, especially in areas that are not conducive to land-based theodolite collected data.
Recovery Plan for Southern Resident Killer Whales (Orcinus Orca)
Author: Publisher:
ISBN:
Category : Killer whale
Languages : en
Pages : 251
Book Description
"This plan identifies a range of actions that will contribute to recovery of Southern Resident killer whales. Many of these actions will have a direct effect on killer whale habitat, but they will also help restore and improve a range of habitats, species and ecosystem processes. Although the recovery plan is focused on Southern Residents, the proposed actions will benefit many native species and natural communities. The plan refers to significant efforts on local, state and regional levels to address recovery of other species (particularly salmon), clean up of Puget Sound and management of local resources. Salmon recovery programs throughout Washington, Oregon and California as well as in Canada identify goals that will benefit the entire ecosystem. The Puget Sound Partnership provides a comprehensive approach to cleaning up inland waters of Puget Sound. There are numerous local efforts that are also focused on improving the health of the ecosystem such as the Marine Stewardship Area established in San Juan County. Over time, each of these programs should improve the overall health and biodiversity of the ecosystem. This plan provides background information on Southern Resident killer whale life history and status, and existing protective measures. Recovery goals and criteria are provided along with recovery actions, research and monitoring tasks in a narrative outline. Priorities and costs for the measures are provided in an implementation table"--Introduction.
Identification of Habitats of Special Importance to Resident Killer Whales (Orcinus Orca) Off the West Coast of Canada
Author: Information in Support of the Identification of Critical Habitat for Transient Killer Whales (Orcinus Orca) Off the West Coast of Canada
Author: Canadian Science Advisory SecretariatPublisher:
ISBN:
Category :
Languages : en
Pages :
Book Description