The Status of the United States Population of Night Shark, Carcharhinus signatus

Night sharks, Carcharhinus signatus, are an oceanic species generally occurring in outer continental shelf waters in the western North Atlantic Ocean including the Caribbean Sea and Gulf of Mexico. Although not targeted, night sharks make up a segment of the shark bycatch in the pelagic longline fishery. Historically, night sharks comprised a significant proportion of the artisanal Cuban shark fishery but today they are rarely caught. Although information from some fisheries has shown a decline in catches of night sharks, it is unclear whether this decline is due to changes in fishing tactics, market, or species identification. Despite the uncertainty in the decline, the night shark is currently listed as a species of concern due to alleged declines in abundance resulting from fishing effort, i.e. overutilization. To assess their relevance to the species of concern list, we collated available information on the night shark to provide an analysis of its status. Night shark landings were likely both over- and under-reported and thus probably did not reflect all commercial and recreational catches, and overall they have limited relevance to the current status of the species. Average size information has not changed considerably since the 1980’s based on information from the pelagic longline fishery when corrected for gear bias. Analysis of biological information indicates night sharks have intrinsic rates of increase (r) about 10% yr–1 and have moderate rebound potential and an intermediate generation time compared to other sharks. An analysis of trends in relative abundance from four data sources gave conflicting results, with one series in decline, two series increasing, and one series relatively flat. Based on the analysis of all currently available information, we believe the night shark does not qualify as a species of concern but should be retained on the prohibited species list as a precautionary approach to management until a more comprehensive stock assessment can be conducted.

Estuaries of the United States : vital statistics of a national resource base /

"October 1990."

Revolution in United States government statistics, 1926-1976 / written by Joseph W. Duncan and William C. Shelton.

Includes indexes.

EXPOSURE TO EXTREME HEAT EVENTS AND CHRONIC RESPIRATORY DISEASES AMONG A NATIONALLY REPRESENTATIVE SAMPLE OF THE UNITED STATES POPULATION

Previous studies have shown that extreme weather events are on the rise in response to our changing climate. Such events are projected to become more frequent, more intense, and longer lasting. A consistent exposure metric for measuring these extreme events as well as information regarding how these events lead to ill health are needed to inform meaningful adaptation strategies that are specific to the needs of local communities. Using federal meteorological data corresponding to 17 years (1997-2013) of the National Health Interview Survey, this research: 1) developed a location-specific exposure metric that captures individuals’ “exposure” at a spatial scale that is consistent with publicly available county-level health outcome data; 2) characterized the United States’ population in counties that have experienced higher numbers of extreme heat events and thus identified population groups likely to experience future events; and 3) developed an empirical model describing the association between exposure to extreme heat events and hay fever. This research confirmed that the natural modes of forcing (e.g., El Niño-Southern Oscillation), seasonality, urban-rural classification, and division of country have an impact on the number extreme heat events recorded. Also, many of the areas affected by extreme heat events are shown to have a variety of vulnerable populations including women of childbearing age, people who are poor, and older adults. Lastly, this research showed that adults in the highest quartile of exposure to extreme heat events had a 7% increased odds of hay fever compared to those in the lowest quartile, suggesting that exposure to extreme heat events increases risk of hay fever among US adults.

Vital statistics of the United States.

Imprint varies: Washington, D.C., 1937-19<54>; Hyattsville, Md., <1983>-1993.

Fifteenth census of the United States: 1930 ... : [Reports].

At head of title: U.S. Department of commerce ... Bureau of the census ...

Birth, stillbirth, and infant mortality statistics for the continental United States, the territory of Hawaii, the Virgin Islands; annual report

Mode of access: Internet.

Prevalence and determinants of hepatitis B co-infection among a United States Veterans Administration cohort with hepatitis C

Background and aim. Hepatitis B virus (HBV) and hepatitis C virus (HCV) co-infection is associated with increased risk of cirrhosis, decompensation, hepatocellular carcinoma, and death. Yet, there is sparse epidemiologic data on co-infection in the United States. Therefore, the aim of this study was to determine the prevalence and determinants of HBV co-infection in a large United States population of HCV patients. ^ Methods. The National Veterans Affairs HCV Clinical Case Registry was used to identify patients tested for HCV during 1997–2005. HCV exposure was defined as two positive HCV tests (antibody, RNA or genotype) or one positive test combined with an ICD-9 code for HCV. HCV infection was defined as only a positive HCV RNA or genotype. HBV exposure was defined as a positive test for hepatitis B core antibodies, hepatitis B surface antigen, HBV DNA, hepatitis Be antigen, or hepatitis Be antibody. HBV infection was defined as only a positive test for hepatitis B surface antigen, HBV DNA, or hepatitis Be antigen within one year before or after the HCV index date. The prevalence of exposure to HBV in patients with HCV exposure and the prevalence of HBV infection in patients with HCV infection were determined. Multivariable logistic regression was used to identify demographic and clinical determinants of co-infection. ^ Results. Among 168,239 patients with HCV exposure, 58,415 patients had HBV exposure for a prevalence of 34.7% (95% CI 34.5–35.0). Among 102,971 patients with HCV infection, 1,431 patients had HBV co-infection for a prevalence of 1.4% (95% CI 1.3–1.5). The independent determinants for an increased risk of HBV co-infection were male sex, positive HIV status, a history of hemophilia, sickle cell anemia or thalassemia, history of blood transfusion, cocaine and other drug use. Age >50 years and Hispanic ethnicity were associated with a decreased risk of HBV co-infection. ^ Conclusions. This is the largest cohort study in the United States on the prevalence of HBV co-infection. Among veterans with HCV, exposure to HBV is common (∼35%), but HBV co-infection is relatively low (1.4%). There is an increased risk of co-infection with younger age, male sex, HIV, and drug use, with decreased risk in Hispanics.^

Harmonized tariff schedule of the United States /

Latest issue consulted: Suppl. 1 to 2006.

General population abstract

Minorities constitute 31.0 percent of South Carolina's population, with African Americans representing 96.1 percent of all minorities in the State. With such a large minority population, it is imperative that information regarding the socio-economic status of minorities and their contribution to the overall socio-economic prosperity of the State be well researched and documented. This report and subsequent documents published by the Commission, will provide data that will be useful in determining the best way to disperse limited state and federal resources and implement new and better targeted public policy initiatives.

Vulnerable Rural Counties: The Changing Rural Landscape, 2000–2010

Understanding the demography of rural America is vital to understanding what programs, interventions and policy initiatives are needed to improve health care access, delivery and outcomes. Overall findings suggest that rural America experienced the recession that ended the 2000–2010 decade more severely than did urban America. Loss of income, declining population and reduced health care resources marked the period for most rural counties. Rural counties will need continued monitoring in the present decade to ascertain whether these adverse trends continue and to identify any policy approaches that can serve to ameliorate losses in health care services.

Sixteenth census of the United States: 1940 Population. The labor force (sample statistics) Employment and personal characteristics.

At head of title: United States Dept. of Commerce. Jesse H. Jones, secretary. Bureau of the Census. J. C. Capt, director.

Fifteenth census of the United States. Census of distribution. Wholesale trade bulletin (State series) ... Statistics for the state and cities of 5,000 population and over .

At head of title: U. S. Department of commerce. R. P. Lamont, secretary. Bureau of the census. W. M. Steuart, director.

Sixteenth census of the United States: 1940. Population and housing. Statistics for census tracts ...

Typed title-page.

Thirteenth census of the United States taken in the year 1910. Abstract of the census, statistics of population, agriculture, manufactures, & mining for the United States, the States, & principal cities, with supplement for Michigan, containing statistics for the state, counties, [etc.].

Mode of access: Internet.