Effect of Aquathol K Treatments on Activity Patterns of Largemouth Bass in Two Coves of Lake Seminole, Georgia

Thirty largemouth bass ( Micropterus salmoide s Lacepde) were implanted with radio tags in late October 2003 in two coves of Lake Seminole, Georgia, and tracked over a 24-hour period about every 10 days to determine their response to herbicide application. After five weeks of tracking, hydrilla ( Hydrilla verticillata Royle) in each cove was treated in early December 2003 with dipotassium salt of endothall (Aquathol K; 7-oxabicyclo [2.2.1] heptane-2,3-dicarboxylic acid) at a rate of 3.5 ppm. Largemouth bass were tracked during application and tracking continued for three months post treatment to assess effects of herbicide treatment on activity patterns. The treatment in Desser Cove successfully reduced hydrilla in approximately half the cove. However, the treatment in Peacock Lake completely eliminated all submersed aquatic vegetation (SAV) by April 2004. Movement and activity centers remained similar between treatment periods in Desser Cove, but increased after treatment in Peacock Lake. Depth occupied by telemetered fish decreased after Aquathol K treatment in both coves. In general, behavior of largemouth bass did not change appreciably during treatment, and only minor changes were observed in the posttreatment period in Peacock Lake, where all SAV was eliminated. Fish showed little attraction to or movement away from treatment areas, and fish migration from either cove was nil after treatment. Application of Aquathol K and subsequent reduction of SAV had little effect on largemouth bass behavior or movement. (PDF has 8 pages.

Population Characteristics of Largemouth Bass Associated with Changes in Abundance of Submersed Aquatic Vegetation in Lake Seminole, Georgia

Population characteristics of largemouth bass ( Micropterus salmoides L.) including growth, body condition (relative weight), survival, and egg production were examined in relation to abundance of submersed aquatic vegetation (SAV) coverage (primarily hydrilla [ Hydrilla verticillata L.f. Royle]) in three embayments of Lake Seminole, GA, and compared to a previous study conducted in 1998. (PDF has 8 pages.

Changes in Behavior, Movement, and Home Ranges of Largemouth Bass Following Large-scale Hydrilla Removal in Lake Seminole, Georgia

About 1,200 ha of hydrilla ( Hydrilla verticillata L.f. Royle) was eliminated in the Spring Creek embayment of Lake Seminole, Georgia, using a drip-delivery application of fluridone (1- methyl-3-phenyl-5-[3-(trifluoromethl) phenyl]-4(1H)-pyridinone) in 2000 and 2001. Two groups of 15 and 20 largemouth bass (Micropterus salmoides Lacepede) were implanted with 400-day radio tags in February 2000 and 2001 to determine changes in movement and behavior before and after hydrilla reduction.(PDF contains 8 pages.

Spinning Carbon Fiber Precursors from 1-Butyl-3-Methylimidazolium Chloride Cellulose Solutions

Cellulose is an abundant natural renewable polymer that is used in the production of many materials. However, limited processibility and reduced solubility have restricted its use in fibers, films, and other products. Ionic liquids (IL) show promise as a new class of cellulose solvents. The primary goal of this research was to spin highly oriented and highly crystalline cellulose fibers from an IL solution. These fibers, in addition to their environmentally advantageous processing, have potential as precursors for carbon fibers. The IL selected for this study was 1-butyl-3-methylimidazolium chloride, ([C4mim]Cl). An elongational flow spinning technique was used to induce molecular orientation in the spinneret thus producing highly oriented, highly crystalline fibers. The effect of spinning conditions on fiber properties was determined. One prime consideration for carbon fiber precursors is the degree and size of defects. The elongational flow imposition of orientation inside the hyperbolic dies was especially effective

Teaching schools evaluation. Research Brief

This Research Brief reports the findings from a two-year study (2013-15) in to the work of teaching schools and their alliances commissioned by the National College for Teaching and Leadership (NCTL). The broad aim of the study was to investigate the effectiveness and impact of teaching schools on improvement, and identify the quality and scope of external support that are required to enhance these . This was achieved through combining qualitative and quantitative data collection and analysis derived from three research activities: case studies of 26 teaching schools alliances (TSAs), a national survey of the first three cohorts of 345 TSAs, and secondary research and analysis of national performance and inspection results

Longitudinal research and early years policy development in the UK

Interest in early years issues such as early childhood education and care (ECEC) and early intervention has increased in recent decades internationally. Partly this reflects interest in facilitating the social and educational development of children, both for deprived children and the general population, and partly interest in increasing parental, particularly maternal, employment. Concern for such issues has led to substantial policy change in the UK in recent decades. For the general population, prior to 1998 there was no statutory obligation for the state to provide any early childhood services for children under the statutory school age of 5 years. However, there were provisions for ‘at risk’ children, as well as in some nursery education for 3- and 4-year olds, typically in more disadvantaged areas, but availability was haphazard around the country. Research evidence and social and political factors have resulted in radical change to the whole early years services system in the UK. The findings of two longitudinal research studies, the national evaluation of Sure Start and the effective provision of pre-school education projects were important factors in policy change and this paper discusses how the interplay of research and policy occurred. Initially changes were introduced by the Labour government, but more recent policy changes have been introduced by the Conservative government. The need for state involvement in early years services has become accepted by all political parties. There is substantially greater government investment in the early years, so that government-funded ECEC is now part of the infrastructure supporting family life for the whole population. This article discusses how research evidence has contributed to the substantial policy change in the last two decades

Retrieval of Infotainment System Artifacts from Vehicles Using iVe

The analysis of mobile devices and hard drives has been the focus of the digital forensics world for years, but there is another source of potential evidence not often considered: vehicles. Many of today’s “connected cars” have systems that function like computers, storing information they process including user data from devices synced to the system. There has been little to no research done regarding what types of user artifacts can be found on the system, how long these artifacts remain, whether or not the user can remove those artifacts, and whether certain systems provide more information than others. For this study, two different makes and models of vehicle infotainment systems were used for data acquisition: a Uconnect® system and a Toyota™ Extension Box. It was found that the Toyota™ system provided a significant amount of user information (contacts, call logs, media file information, and locations), while the Uconnect® system provided only locations. This indicates valuable user data can be obtained in this manner

Integrating reading and literature into content area curriculum through thematic units

The goals of this project include developing a way to efficiently teach the many required subjects in the overloaded elementary school day and incorporating litrature into content area curriculum