Beluga, Delphinapterus leucas, Distribution and Survey Effort in the Gulf of Alaska

Beluga, Delphinapterus leucas, distribution in the Gulf of Alaska and adjacent inside waters was examined through a review of surveys conducted as far back as 1936. Although beluga sightings have occurred on almost every marine mammal survey in northern Cook Inlet (over 20 surveys reported here), beluga sightings have been rare outside the inlet in the Gulf of Alaska. More than 150,000 km of dedicated survey effort in the Gulf of Alaska resulted in sightings of over 23,000 individual cetaceans, of which only 4 beluga sightings (5 individuals) occurred. In addition, nearly 100,000 individual cetaceans were reported in the Platforms of Opportunity database; yet, of these, only 5 sightings (39 individuals) were belugas. Furthermore, approximately 19 beluga sightings (>260 individuals), possibly including resightings, have been reported without information on effort or other cetacean sightings. Of the 28 sightings of belugas outside of Cook Inlet, 9 were near Kodiak Island, 10 were in or near Prince William Sound, 8 were in Yakutat Bay, and 1 anomalous sighting was well south of the Gulf. These sightings support archaeological and commercial harvest evidence indicating the only persistent group of belugas in the Gulf of Alaska occurs in Cook Inlet

Beluga, Delphinapterus leucas, Habitat Associations in Cook Inlet, Alaska

A review of available information describing habitat associations for belugas, Delphinapterus leucas, in Cook Inlet was undertaken to complement population assessment surveys from 1993-2000. Available data for physical, biological, and anthropogenic factors in Cook Inlet are summarized followed by a provisional description of seasonal habitat associations. To summarize habitat preferences, the beluga summer distribution pattern was used to partition Cook Inlet into three regions. In general, belugas congregate in shallow, relatively warm, low-salinity water near major river outflows in upper Cook Inlet during summer (defined as their primary habitat), where prey availability is comparatively high and predator occurrence relatively low. In winter, belugas are seen in the central inlet, but sightings are fewer in number, and whales more dispersed compared to summer. Belugas are associated with a range of ice conditions in winter, from ice-free to 60% ice-covered water. Natural catastrophic events, such as fires, earthquakes, and volcanic eruptions, have had no reported effect on beluga habitat, although such events likely affect water quality and, potentially, prey availability. Similarly, although sewage effluent and discharges from industrial and military activities along Cook Inlet negatively affect water quality, analyses of organochlorines and heavy metal burdens indicate that Cook Inlet belugas are not assimilating contaminant loads greater than any other Alaska beluga stocks. Offshore oil and gas activities and vessel traffic are high in the central inlet compared with other Alaska waters, although belugas in Cook Inlet seem habituated to these anthropogenic factors. Anthropogenic factors that have the highest potential negative impacts on belugas include subsistence hunts (not discussed in this report), noise from transportation and offshore oil and gas extraction (ship transits and aircraft overflights), and water quality degradation (from urban runoff and sewage treatment facilities). Although significant impacts from anthropogenic factors other than hunting are not yet apparent, assessment of potential impacts from human activities, especially those that may effect prey availability, are needed

The Medio Creek Site (41BX1421): National Register Test Excavations, Bexar County Texas

During April 2001, the Center for Archaeological Research of The University of Texas at San Antonio conducted National Register of Historic Places eligibility testing for archeological site 41BX1421, located in southwest Bexar County, Texas, under contract with the Texas Department of Transportation. The investigations were conducted under Texas Antiquities Permit Number 2569. The Phase II testing fieldwork consisted of excavation of five test units across the site to investigate cultural deposits encountered during the previous survey phase. A single sheet midden consisting of burned limestone cobbles was encountered across the majority of the site. In concert with the archeological field investigations, the following special analyses and studies were performed to aid the determination of site integrity and eligibility: radiocarbon, lithic, aboriginal ceramic, vertebrate faunal. and magnetic sediment susceptibility. The synthesis of these analyses has provided adequate data to determine 41BX1421 ineligible for the National Register of Historic Places. It is therefore recommended that the Loop 1604 improvements proceed without further cultural resources investigations

Winter Sighting of Beluga Whales (Delphinapterus leucas) in Yakutat-Disenchantment Bay, Alaska

On 19 February 1997, we made the first documented winter sighting of beluga whales in Yakutat-Disenchantment Bay, Alaska. We estimated that 10 individuals were swimming in ice-free, turbid water near the Hubbard Glacier. The sporadic record of belugas in the bay suggests they may be occasional visitors from the Cook Inlet population.Le 19 février 1997, nous avons pour la première fois enregistré la présence de bélougas en hiver dans la baie alaskienne de Yakutat-Disenchantment. On a estimé à 10 le nombre d'individus qui nageaient dans l'eau turbide libre de glace près du glacier Hubbard. La présence sporadique des bélougas dans la baie suggère qu'ils pourraient être des visiteurs occasionnels venant de la population du détroit de Cook

An intervention to reduce care‐resistant behavior in persons with dementia during oral hygiene: a pilot study

The primary purpose of this pilot study was to test the feasibility of an intervention designed to reduce care‐resistant behaviors (CRBs) in persons with moderate‐to‐severe dementia during oral hygiene activities.The intervention, Managing Oral Hygiene Using Threat Reduction (MOUTh), combined best oral hygiene practices with CRB reduction techniques. Oral health was operationalized as the total score obtained from the Oral Health Assessment Tool (OHAT). CRB was measured using a refinement of the Resistiveness to Care Scale. Seven nursing home residents with dementia received twice daily mouth care for 14 days. The baseline OHAT mean score of 7.29 (SD = 1.25) improved to 1.00 (SD = 1.26, p < .001); CRB improved from 2.43 CRBs/minute (SD = 4.26) to 1.09 CRBs/minute (SD = 1.56, t = 1.97, df 41, p= .06).The findings from this pilot study suggest that the MOUTh intervention is feasible and reduced CRBs, thus allowing more effective oral care.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/110640/1/j.1754-4505.2011.00190.x.pd

Harvest History of Belugas, Delphinapterus leucas, in Cook Inlet, Alaska

Belugas, Delphinapterus leucas, in Cook Inlet, Alaska, represent a unique and isolated marine mammal population that has been hunted for a variety of purposes since prehistoric times. Archeological studies have shown that both Alutiiq Eskimos and Dena'ina Atabaskan Indians have long utilized many marine resources in Cook Inlet, including belugas. Over the past century, commercial whaling and sport hunting also occurred periodically in Cook Inlet prior to the Marine Mammal Protection Act of 1972 (MMPA). During the 1990's, the hunting mortality by Alaska Natives apparently increased to 40-70 whales per year, which led to the decling of this stock and its subsequent designation in 2000 as depleted under the MMPA. Concerns about the decline of the Cook Inlet stock resulted in a voluntary suspension of the subsistenc hunt by Alaska Natives in 1999. The difficulty in obtaining accurate estimates for the harvest of these whales is due to the inability to identify all of the hunters and, in turn, the size of the harvest. Attempts to reconstruct harvest records based on hunters' recollections and interviews from only a few households have been subject to a wide degree of speculation. To adequately monitor the beluga harvest, the National Marine Fisheries Service established marking and reporting regulations in October 1999. These rules require that Alaska Natives who hunt belugas in Cook Inlet must collect the lowere left jaw from harvested whales and complete a report that includes date and time of the harvest, coloration of the whale, harvest location, and method of harvest. The MMPA was amended in 2000 to require a cooperative agreement between the National Marine Fisheries Service and Alaska Native organizations before hunting could be resumed

Archaeological Survey for the Proposed Salado Creek Hike and Bike Trail, City of San Antonio, Bexar County, Texas

In November of 2002 and March of 2003, a crew from the Center for Archaeological Research at The University of Texas at San Antonio conducted archeological and geoarcheological investigations along Salado Creek in San Antonio, Bexar County, Texas. The purpose of this fieldwork was to investigate, using shovel testing and backhoe trenching, the impact of the proposed construction of an approximately three-mile-long hike and bike trail along the creek. The work included testing for the presence of the historic Alsbury Family Cemetery and Homestead that may be in close proximity to the trail’s right-of-way. Work was performed under contract with HNTB Corporation of San Antonio. This work was conducted under Texas Antiquities Permit No. 2917, with Steve A. Tomka serving as Principal Investigator. Shovel testing and backhoe trenching yielded no significant archeological deposits. No cultural material was collected during the survey. A backhoe trench and shovel tests placed along the trail’s path in the vicinity of the cemetery encountered no signs of graves and archival research suggests the cemetery is well outside the trail right-of-way. It is believed that locating the Alsbury Family Cemetery may require pedestrian survey and subsurface investigations that are outside the scope of this project. Finally, it is recommended that the construction of the proposed hike and bike trail proceed as planned since it will not impact intact cultural deposits of significant research potential

Reducing care-resistant behaviors during oral hygiene in persons with dementia

Abstract Background Nursing home residents with dementia are often dependent on others for mouth care, yet will react with care-resistant behavior when receiving assistance. The oral health of these elders deteriorates in the absence of daily oral hygiene, predisposing them to harmful systemic problems such as pneumonia, hyperglycemia, cardiac disease, and cerebral vascular accidents. The purpose of this study is to determine whether care-resistant behaviors can be reduced, and oral health improved, through the application of an intervention based on the neurobiological principles of threat perception and fear response. The intervention, called Managing Oral Hygiene Using Threat Reduction, combines best mouth care practices with a constellation of behavioral techniques that reduce threat perception and thereby prevent or de-escalate care-resistant behaviors. Methods/Design Using a randomized repeated measures design, 80 elders with dementia from 5 different nursing homes will be randomized at the individual level to the experimental group, which will receive the intervention, or to the control group, which will receive standard mouth care from research team members who receive training in the proper methods for providing mouth care but no training in resistance recognition or prevention/mediation. Oral health assessments and care-resistant behavior measurements will be obtained during a 7-day observation period and a 21-day intervention period. Individual growth models using multilevel analysis will be used to estimate the efficacy of the intervention for reducing care-resistant behaviors in persons with dementia, and to estimate the overall efficacy of the intervention using oral health outcomes. Activity-based costing methods will be used to determine the cost of the proposed intervention. Discussion At the conclusion of this study, the research team anticipates having a proven intervention that prevents and reduces care-resistant within the context of mouth care. Long-term objectives include testing the effect of the intervention on systemic illnesses among persons with dementia; examining the transferability of this intervention to other activities of daily living; and disseminating threat reduction interventions to nursing home staff, which may radically change the manner in which care is provided to persons with dementia. Trial Registration ClinicalTrials.gov: NCT01363258http://deepblue.lib.umich.edu/bitstream/2027.42/112778/1/12903_2011_Article_198.pd