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Identification Of Habitats Of Special Importance To Resident Killer Whales Orcinus Orca Off The West Coast Of Canada
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Book Synopsis Identification of Habitats of Special Importance to Resident Killer Whales (Orcinus Orca) Off the West Coast of Canada by :
Download or read book Identification of Habitats of Special Importance to Resident Killer Whales (Orcinus Orca) Off the West Coast of Canada written by and published by . This book was released on 2017 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Habitats of Special Importance to Resident Killer Whales (Orcinus Orca) of the West Coast of Canada by : John Kenneth Baker Ford
Download or read book Habitats of Special Importance to Resident Killer Whales (Orcinus Orca) of the West Coast of Canada written by John Kenneth Baker Ford and published by . This book was released on 2017 with total page 57 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Information in Support of the Identification of Critical Habitat for Transient Killer Whales (Orcinus Orca) Off the West Coast of Canada by : Canadian Science Advisory Secretariat
Download or read book Information in Support of the Identification of Critical Habitat for Transient Killer Whales (Orcinus Orca) Off the West Coast of Canada written by Canadian Science Advisory Secretariat and published by . This book was released on with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Information in Support of the Identification of Critical Habitat for Transient Killer Whales (Orcinus Orca) Off the West Coast of Canada by :
Download or read book Information in Support of the Identification of Critical Habitat for Transient Killer Whales (Orcinus Orca) Off the West Coast of Canada written by and published by . This book was released on 2013 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Information in support of the identification of critical habitat for transient killer whales (Orcinus orca) off the West Coast of Canada by : John Kenneth Baker Ford
Download or read book Information in support of the identification of critical habitat for transient killer whales (Orcinus orca) off the West Coast of Canada written by John Kenneth Baker Ford and published by . This book was released on with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Information in Support of the Identification of Critical Habitat for Transient Killer Whales (Orcinus Orca) Off the West Coast of Canada by : John Kenneth Baker Ford
Download or read book Information in Support of the Identification of Critical Habitat for Transient Killer Whales (Orcinus Orca) Off the West Coast of Canada written by John Kenneth Baker Ford and published by . This book was released on 2013 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Before-After Control-Impact (BACI) Studies in the Ocean by : Edward Urban
Download or read book Before-After Control-Impact (BACI) Studies in the Ocean written by Edward Urban and published by Frontiers Media SA. This book was released on 2022-01-05 with total page 239 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Identifying and Comparing Important Areas for Marine Sustainable Use and Conservation by : Sofie Van Parijs
Download or read book Identifying and Comparing Important Areas for Marine Sustainable Use and Conservation written by Sofie Van Parijs and published by Frontiers Media SA. This book was released on 2024-05-24 with total page 342 pages. Available in PDF, EPUB and Kindle. Book excerpt: The ocean is under increasing threat from the expansion of human activities. The combined impacts of these threats as well as the potential impacts of climate change and ocean acidification have placed thousands of species at risk of extinction, and have impaired the structure, function, productivity and resilience of marine ecosystems. Currently, some parts of the world's oceans are significantly impacted, yet are without any form of effective management. Only a small proportion of the oceans are within protected area systems. Globally, measures are being taken to increase protection and sustainable management, but application is uncoordinated and not always effective. In order to support effective policy action by countries and competent international and regional organizations, it is critical to build a sound understanding of the most ecologically and biologically important ocean areas that support healthy marine ecosystems so that the necessary steps to ensure the long-term function and resilience of these systems can be taken.
Download or read book Killer Whales written by John K. B. Ford and published by UBC Press. This book was released on 1996 with total page 106 pages. Available in PDF, EPUB and Kindle. Book excerpt: This new edition of this best-selling book presents updated results ofover twenty-five years of killer whale research in British Columbia andWashington. Intended for both whale enthusiasts and researchers, itcontains the latest information on killer whale natural history andpresents a catalogue of close to 300 photographs of"resident" killer whales as well as a genealogical registrythat enables readers to identify individual killer whales and theirfamily groups. The technique of photographing the dorsal fin and greysaddle patch of whales has revolutionized the study of killer whales,allowing researchers to follow individuals over the course of manyyears.
Book Synopsis Southern Resident Killer Whales (Orcinus Orca) by : Deborah A. Giles
Download or read book Southern Resident Killer Whales (Orcinus Orca) written by Deborah A. Giles and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis A Historical Ecology of Salish Sea Resident Killer Whales (Orcinus Orca), with Implications for Management by :
Download or read book A Historical Ecology of Salish Sea Resident Killer Whales (Orcinus Orca), with Implications for Management written by and published by . This book was released on 1999 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Recovery Strategy for the Northern and Southern Resident Killer Whales (Orcinus Orca) in Canada by : Christie McMillan
Download or read book Recovery Strategy for the Northern and Southern Resident Killer Whales (Orcinus Orca) in Canada written by Christie McMillan and published by . This book was released on 2018 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The “Recovery Strategy for the Northern and Southern Resident Killer Whales (Orcinus orca) in Canada” was finalized and published on the Species at Risk Public Registry in 2008. Minor amendments to the recovery strategy were made in 2011 to provide additional clarification regarding critical habitat for Northern and Southern Resident Killer Whales. This recovery strategy is here with amended once again to include identification of additional critical habitat for these populations and to provide minor updates to background and species information. Additionally, sections of the recovery strategy have been reordered to align with current templates"--Executive summary, p. vi.
Book Synopsis Primates and Cetaceans by : Juichi Yamagiwa
Download or read book Primates and Cetaceans written by Juichi Yamagiwa and published by Springer Science & Business Media. This book was released on 2013-11-20 with total page 445 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this book, the editors present a view of the socioecology of primates and cetaceans in a comparative perspective to elucidate the social evolution of highly intellectual mammals in terrestrial and aquatic environments. Despite obvious differences in morphology and eco-physiology, there are many cases of comparable, sometimes strikingly similar patterns of sociobehavioral complexity. A number of long-term field studies have accumulated a substantial amount of data on the life history of various taxa, foraging ecology, social and sexual relationships, demography, and various patterns of behavior: from dynamic fission–fusion to long-term stable societies; from male-bonded to bisexually bonded to matrilineal groups. Primatologists and cetologists have come together to provide four evolutionary themes: (1) social complexity and behavioral plasticity, (2) life history strategies and social evolution, (3) the interface between behavior, demography, and conservation, and (4) selected topics in comparative behavior. These comparisons of taxa that are evolutionarily distant but live in comparable complex sociocognitive environments boost our appreciation of their sophisticated mammalian societies and can advance our understanding of the ecological factors that have shaped their social evolution. This knowledge also facilitates a better understanding of the day-to-day challenges these animals face in the human-dominated world and may improve the capacity and effectiveness of our conservation efforts.
Book Synopsis Patterns of Seasonal Occurrence of Sympatric Killer Whale Lineages in Waters Off Southern Vancouver Island and Washington State, as Determined by Passive Acoustic Monitoring by : Amalis Riera
Download or read book Patterns of Seasonal Occurrence of Sympatric Killer Whale Lineages in Waters Off Southern Vancouver Island and Washington State, as Determined by Passive Acoustic Monitoring written by Amalis Riera and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Killer whales inhabiting coastal waters of the northeastern Pacific are listed under the Canadian Species at Risk Act, which requires the identification of critical habitats for the recovery of their populations. Little is known about their distribution during the winter and what areas are important for their survival during these months. Passive acoustic monitoring is a valuable complementary method to traditional visual and photographic surveys although it has seldom been used to study killer whales and there are limitations in practice. There is a need to develop tools and protocols to maximize the efficiency of such studies. In this thesis, long-term acoustic data collected with autonomous recorders were analyzed 1) to assess the performance of two types of analysis (Manual and Long Term Spectral Averages) for detecting and identifying killer whale calls and to compare the effects of using two different duty cycles (1/3 and 2/3); and 2) to investigate the seasonal occurrence of different killer whale populations at two sites off the west coasts of Vancouver Island and Washington: Swiftsure Bank and Cape Elizabeth. Both the use of Long Term Spectral Averages and a lower duty cycle resulted in a decrease in call detection and resolution of call identification, leading to underestimations of the amount of time the whales spent at the site. A compromise between a lower resolution data processing method and a higher duty cycle (and vice-versa) is therefore suggested for future passive acoustic monitoring studies of killer whales. Killer whale calls were detected on 186 days at Swiftsure Bank and on 39 days at Cape Elizabeth. The seasonal occurrence of killer whales at Swiftsure Bank highlights its importance as a killer whale hotspot, with year-round presence of Southern Residents and British Columbia Transients, Northern Residents in spring and fall, and California Transients on rare occasions. These results support the expansion of Southern Resident's critical habitat to include Swiftsure Bank. Temporal habitat partitioning between Resident populations was observed at Cape Elizabeth, with Southern Residents detected from January through June and Northern Residents from July to September. These results show that Northern Residents use the southern parts of their range more frequently than previously thought. Both Transient populations were frequently detected throughout the year, suggesting habitat overlapping.
Download or read book Killer Whales written by John K. B. Ford and published by University of Washington Press. This book was released on 1994 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt: The three authors have been studying killer whales since the 1970s, when they began photographing dorsal fins and the gray saddle patches at the base of the fins in order to identify individual whales. They present the latest information on killer whale natural history; suggestions on how, when, and where to best watch killer whales; and a catalog of some 300 photographs of "resident" killer whales which can be used to identify individuals and their family groups. 10.75x9" Annotation c. by Book News, Inc., Portland, Or.
Download or read book Killer Whales written by Michael A. Bigg and published by Phanton Press & Publishers. This book was released on 1987 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Information in Support of the Identification of Habitat of Special Importance to Fin Whales (Balaenoptera Physalus) in Canadian Pacific Waters by : Linda Marie Nichol
Download or read book Information in Support of the Identification of Habitat of Special Importance to Fin Whales (Balaenoptera Physalus) in Canadian Pacific Waters written by Linda Marie Nichol and published by . This book was released on 2018 with total page 29 pages. Available in PDF, EPUB and Kindle. Book excerpt:
