Download or read book Monitoring of Ringed Seals During Construction of Ice Roads for BP s Northstar Oil Development Alaskan Beaufort Sea 1990 written by William John Richardson and published by . This book was released on 2000 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: "Introduction. BP Exploration (Alaska) Inc. (BP) plans to produce crude oils from the Northstar Unit, which is located between 2 and 8 miles (3.2 and 12.9 kilometers) offshore from Point Storkersen, just northwest of Prudhoe Bay. The Northstar island is to built on the remnants of Seal Island, an artificial island constructed in 1982, used for exploration drilling during the 1980s and subsequently abandoned. ... In August 1998, BP submitted to the National Marine Fisheries Service (NMFS) an application for an Incidental Harassment Authorization (IHA) to authorize potential unintentional non-lethal "takes" of whales and seals during Northstar construction activities from December 1998 through to December 1999. Monitoring is one of the requirements of an IHA. BP's Application included an outline of the marine mammal and acoustical monitoring work proposed by BP. Four monitoring tasks were planned during the winter-spring period: 1. continue a "Before-After/Control-Impact (BACI)" study on ringed seal distribution and abundance, as documented by fixed-wing aerial surveys during spring ...; 2. conduct on-ice searches for ringed seal lairs in areas where construction activities were initiated after 20 March 1999, the approximate onset of the ringed seal pupping period; 3. conduct a late winter helicopter survey and assessment of abandonment rates for seal holes; and 4. conduct acoustic and vibration measurements to document levels, characteristics, and transmission of sounds created by gravel hauling and new ice-road construction. ... Ice Road Construction, 1999. Two ice roads were built between early January and early April 1999. The main ice road was built from the Kuparuk River gravel mine site to Seal Island. An alternate road was built parallel to and west of the northern portion of the main road, starting at a planned gravel reload area ~7 km (4.3 mi) southwest of Seal Island and extending northeast to Seal Island. ... Searches for ringed seal breathing holes and lairs ... were conducted in all areas of planned construction where water depths were greater than 1.5 m (5 ft). No construction activities began until the on-ice surveys confirmed the absence of ringed seal breathing holes of lairs in the planned construction areas and a 152 m (500 ft) buffer zone on each side"--ASTIS database.

Download or read book Liberty Development and Production Plan written by and published by . This book was released on 2002 with total page 480 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Liberty Development and Production Plan written by United States. Minerals Management Service. Alaska OCS Region and published by . This book was released on 2002 with total page 650 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Monitoring Distribution and Abundance of Ringed Seals in Northern Alaska written by Kathryn J. Frost and published by . This book was released on 2002 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report describes results of aerial surveys conducted to determine the distribution and abundance of ringed seals (Phoca hispida) in the central Beaufort Sea off Alaska ... Specific objectives were to: 1) review and refine protocols for monitoring ringed seals by aerial surveys; 2) estimate relative abundance and density of ringed seals on fast ice in the Beaufort Sea during 1996-1999 and compare with data collected during 1985-1987; and 3) correlate observed ringed seal densities on fast ice with environmental parameters."--Page vi.

Download or read book Ringed Seal Distribution and Abundance Near Potential Oil Development Sites in the Central Alaskan Beaufort Sea Spring 1997 written by Gary W. Miller and published by . This book was released on 1998 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Ringed Seals in the North Atlantic written by North Atlantic Marine Mammal Commission and published by Tromsø [Norway] : North Atlantic Marine Mammal Commission. This book was released on 1998 with total page 286 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Assessing the Potential Effects of Near Shore Hydrocarbon Exploration on Ringed Seals in the Beaufort Sea Region 2003 2006 written by Lois A. Harwood and published by . This book was released on 2007 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Responding to Oil Spills in the U S Arctic Marine Environment written by National Research Council and published by National Academies Press. This book was released on 2014-08-01 with total page 343 pages. Available in PDF, EPUB and Kindle. Book excerpt: U.S. Arctic waters north of the Bering Strait and west of the Canadian border encompass a vast area that is usually ice covered for much of the year, but is increasingly experiencing longer periods and larger areas of open water due to climate change. Sparsely inhabited with a wide variety of ecosystems found nowhere else, this region is vulnerable to damage from human activities. As oil and gas, shipping, and tourism activities increase, the possibilities of an oil spill also increase. How can we best prepare to respond to such an event in this challenging environment? Responding to Oil Spills in the U.S. Arctic Marine Environment reviews the current state of the science regarding oil spill response and environmental assessment in the Arctic region north of the Bering Strait, with emphasis on the potential impacts in U.S. waters. This report describes the unique ecosystems and environment of the Arctic and makes recommendations to provide an effective response effort in these challenging conditions. According to Responding to Oil Spills in the U.S. Arctic Marine Environment, a full range of proven oil spill response technologies is needed in order to minimize the impacts on people and sensitive ecosystems. This report identifies key oil spill research priorities, critical data and monitoring needs, mitigation strategies, and important operational and logistical issues. The Arctic acts as an integrating, regulating, and mediating component of the physical, atmospheric and cryospheric systems that govern life on Earth. Not only does the Arctic serve as regulator of many of the Earth's large-scale systems and processes, but it is also an area where choices made have substantial impact on life and choices everywhere on planet Earth. This report's recommendations will assist environmentalists, industry, state and local policymakers, and anyone interested in the future of this special region to preserve and protect it from damaging oil spills.

Download or read book Circumpolar Ringed Seal Pusa Hispida Monitoring written by Conservation of Arctic Flora and Fauna and published by . This book was released on 2013 with total page 45 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Effect of Contact and Ingestion of Crude Oil on Ringed Seals written by Beaufort Sea Project (Canada) and published by . This book was released on 1975 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Effect of Contact and Ingestion of Crude Oil on Ringed Seals of the Beaufort Sea written by Thomas G. Smith and published by Beaufort Sea Project. This book was released on 1975 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt: Report of study to evaluate effects of immersion in and accidental ingestion of crude oil on ringed seals. Study conducted at Cape Parry and in laboratory. A Beaufort Sea Project study.

Download or read book Monitoring Distribution and Abundance of Ringed Seals in Northern Alaska written by United States. Minerals Management Service. Alaska OCS Region and published by . This book was released on 2002 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Migrating Ringed Seals and Offshore Seismic written by Lois A. Harwood and published by . This book was released on 2002 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The ringed seal is an important element of the arctic marine ecosystem, both as the main prey of polar bears, and a major consumer of marine fish and invertebrates (Smith 1987). It continues to be an important species in the subsistence harvests and economy of Holman, as well as in Sachs Harbour, Tuktoyaktuk and Paulatuk (Harwood et al. 2000). Seals are harvested for human and dog food and for pelts used in handicrafts and clothing. Over the past three years, four ringed seals were tagged in each of 1999, 2000 and 2001, with satellite-linked transmitters. The seals were captured near the Inuvialuit communities of Holman (1999 and 2000) and Paulatuk / Cape Parry (2001), NT, Canada. For 2002, we plan to conduct one further year at the Cape Parry site and in 2003 move to the southeastern Beaufort Sea out of Tuktoyaktuk or Sachs Harbour. Study Objectives: The specific objectives of the study are to: enhance the utility of an existing long-term, community-based seal monitoring program as a tool for studying ecosystem health and productivity; in a community-based program, to develop local expertise in the application of satellite tags to ringed seals in the Inuvialuit Settlement Region; facilitate partnering of industry, government, the Inuvialuit and the private sector in a long-term, ecosystem-based research; document the range and movements of adult, adolescent and young-of-the-year ringed seals from the Safety Channel (Tahiyuyak) area near Holman, from the Cape Parry area of Amundsen Gulf, and the Beaufort Sea offshore of the Mackenzie Delta and Tuktoyaktuk Peninsula areas, from early summer through to late spring; examine the depth and duration of ringed seal dives, time at surface, and distribution and movements of tagged seals in relation to ice conditions and oceanographic features in these areas (depicted in satellite imagery), as a means of elucidating important feeding locations within the region. ... Migration Routes & Proximity to the Snapper: The migration routes of two of the seals (11747, 5092) in Zones A and B followed a linear route in a southwesterly direction, offshore of the Tuk Peninsula and Mackenzie Delta (Fig. 1). The duty cycling of the tags started in Zone B, and thus the tags were "off" for part of the time that two of the seals were in the lease area (Sept. 27-29, 2001). Tracks for this area had to be interpolated from the locations available before and after the interruption due to the duty cycling of the tags. Three seals spent 2 d (5092), 4.5 d (11747) and 6 d (21212) travelling from east to west through Zone B. The closest that seal 5092 came to the operating Snapper was estimated to be 49 km on Sept 28 (Table 3). Seal 11747 followed a similar track as seal 5092, however then altered course to the south and traveled directly through the western portion of the lease area. This seal was interpolated to have come within 18 km of the operating Seismic vessel on September 28, 2001 (Table 3). This seal continued its migration, eventually arriving at the Yukon coast. This is an important late summer feeding area for both ringed seals and bowhead whales (Smith et al 1973; Harwood 1989; Harwood and Stirling 1992). Seal 21212 followed a similar westward path as 11747 and 5092 in Zone A, however altered course to a northward direction part of the way across Zone A. The seal continued in a north-westerly direction, then moved to the southwest following the shelf break zone through the rest of Zone B. This seal passed within 57 km of the Snapper on October 3. The shelf-break zone is a well-known feeding area for ringed seals and bowhead whales during the open water period (Harwood and Stirling 1992). The comparison of seal movements and Snapper activity presents a unique opportunity to examine the movement of ringed seals through an area of industrial activity. The duty cycling interruption and the small sample size (n=3) precludes drawing firm conclusions as to possible short-term effects (e.g. avoidance re sponses) or lack thereof. However, on a regional scale, it appears that the seals completed their migration from east to west unhampered, following similar routes and travelling at similar rates as each other. The diversion of seal 21212 to the shelf break zone was likely related to feeding, although it cannot be discounted that this could have been a "detour". The point at which the seal altered it's course was an estimated 110 km from the vessel, and this is beyond the distance at which a seal would be expected to be disturbed or possibly even detect an operating ship. In all cases, the seals migrated through Zone B, and into Zones C and D at similar rates and along similar headings throughout their rapid westward migration"--ASTIS [online] database.

Download or read book Direct And Indirect Effects Of Oil On Ringed Seals Phoca Hispida Of The Beaufort Sea written by Joseph R. Geraci and published by . This book was released on 1976 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Distribution and Abundance of Seals in the Beaufort Sea Amundsen Gulf and Prince Albert Sound 1984 written by Michael Kingsley and published by . This book was released on 1986 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Monitoring Distribution and Abundance of Ringed Seals in Northern Alaska written by Kathryn J. Frost and published by . This book was released on 1999 with total page 37 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Distribution and Abundance of Seals in the Eastern Beaufort Sea 1974 79 written by Canadian Wildlife Service and published by . This book was released on 1982 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: