Download or read book An Evaluation of Walleye Sander Vitreus Spawning Potential in a North Temperate Wisconsin Lake written by Lauren E. Williamson and published by . This book was released on 2008 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Walleye Sander Vitreus Spawning Habitat Selection and Dynamics in a North temperate Wisconsin Lake written by Joshua K. Raabe and published by . This book was released on 2006 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Evaluation of the Intraspecific Effects of a 15 inch Minimum Size Limit on Walleye Sander Vitreus Populations in Northern Wisconsin written by Michelle Lee LeBeau and published by . This book was released on 2004 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Evaluating Walleye Sander Vitreus Thermal and Optical Habitat Occupancy in Northern Wisconsin Lakes Using Two Forms of Technology written by Benjamin R. Vasquez and published by . This book was released on 2024 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Determining Spawning Occurrence and Reproductive Potential of Shenango River Lake Walleye written by Michael T. Hamilton and published by . This book was released on 2009 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of this project was to achieve an assessment of walleye (Sander vitreus) spawning through the collection of eggs and physico-chemical data in the Shenango River, from the Shenango River Lake extending upstream approximately 24 river kilometers. It is generally thought that successful spawning of walleye in Pennsylvania is nearly non-existent, but the research to support this is limited. The data collected during sampling included river depth, flow velocity, water temperature, dissolved oxygen, pH, and river substrate content. This data will provide a baseline for future studies of the Shenango River and similar fisheries. This information was compared with that of other studies on walleye spawning habitat to establish a Walleye Spawning Qualitative Habitat Evaluation Index (WSQHEI). Walleye spawning attempts by Shenango River Lake walleye in the Shenango River was confirmed by this study. The WSQHEI appeared unsuitable for predicting walleye spawning in the Shenango River. Physico-chemical data displayed minimal gradients, which limited the development and effectiveness of the WSQHEI. This occurred because sampling was restricted to areas conducive to walleye spawning based upon literature of known environmental variables. Although walleye spawning activity was unrelated to environmental conditions among sites, migration distance was negatively correlated with walleye spawning activity. Sampling in 2008 and 2009 indicated that spawning occurrence decreased as distance from Shenango River Lake increased. The WSQHEI could be useful for baseline assessments when little or no data are available about the walleye spawning activities in a lotic system.
Download or read book Relations Between Walleye Sander Vitreus Recruitment and Spawning Habitat in Northeastern Wisconsin Lakes written by Gina M. Rammer and published by . This book was released on 2010 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Identifying Recruitment Bottlenecks for Age 0 Walleye Sander Vitreus in Northern Wisconsin Lakes written by Hadley I. A. Boehm and published by . This book was released on 2016 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Spawning Habitat Assessment and Relationship to Walleye Recruitment in Northern Wisconsin Lakes written by Jacob T. Richter and published by . This book was released on 2015 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An Evaluation of the Efficacy of a 14 18 Inch Slot Limit for Walleyes in Northern Wisconsin written by Andrew Hunter Fayram and published by . This book was released on 2010 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Modeling Walleye Sander Vitreus Spawning Habitat Suitability and Reproductive Success in the Sandusky River Ohio USA written by Daniel Adam Gillenwater and published by . This book was released on 2005 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: Dam removal is becoming an increasingly popular tool for river restoration throughout the United States. One of the most controversial dam removal proposals in the Lake Erie Watershed involves the Ballville Dam on the Sandusky River (Ohio). The Sandusky River is one of the major spawning tributaries for Lake Erie walleye (Sander vitreus). However, the dam located at river kilometer 29, blocks the fish from reaching upstream gravel beds and forces them to spawn below the Ballville Dam. It has been suggested that removing the dam will increase walleye reproductive success and thus the returning spawning population. This work is divided into two separate studies that focus on different aspects of the impacts the Ballville Dam has on the walleye population in the Sandusky River. An existing ecological model of walleye spawning and early life history stages in the Sandusky River is validated using in-situ egg deposition and larval drift data collected during the 2003 and 2004 spawning seasons. The results indicate that the model results agree with field observations for a spawning population of 2000 to 5000 females. However, this number of females is insufficient to saturate the below-dam spawning grounds, and therefore no increase in egg deposition or larval production is noted for without-dam simulations. A GIS-based habitat suitability model of an area of the currently available spawning grounds in the Sandusky River was also created and validated. The model was able to give a reasonable indication of habitat suitability dynamics in the current spawning grounds. However, there was difficulty resolving velocities in complex areas of the channel. The results indicate that floods with discharges exceeding 100 m3/s can reduce the area of suitable habitat to almost zero. Reproductive success in a given year may therefore rely heavily on the length of the spawning season and the discharge patterns. The results of the two models offer new insight into the removal of the Ballville Dam. However, coupling the two systems (an ecological model and a high resolution habitat suitability model) would give the most complete assessment of the potential impacts of the removal of the Ballville Dam on the walleye population in the Sandusky River.
Download or read book Expanded Assessment of Recruitment Bottlenecks for Age 0 Walleye Sander Vitreus in Northern Wisconsin written by Jason C. Gostiaux and published by . This book was released on 2018 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Biology Management and Culture of Walleye and Sauger written by Bruce A. Barton and published by . This book was released on 2011-01-01 with total page 600 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Spawning Habitats of Walleyes Sander Vitreus in Lake Bemidji Minnesota written by Matthew J. Sperry and published by . This book was released on 2006 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt: Radio telemetry, larval fish sampling, egg baskets, and scapnetting were utilized to determine walleye Sander vitreus spawning sites in Lake Bemidji, Minnesota, during the spring spawning periods of 2002 through 2004. Some walleye populations travel from their lake environments into rivers or streams to spawn, but Lake Bemidji walleyes appear to be lake spawners. No tracked walleyes were found in river habitats during the 2002 spawning season. Based on radio telemetry, six putative spawning areas were located: Rocky Point at Lake Bemidji State Park, northwestern shore of the north basin, weed beds (bulrush Scirpus spp.) on each side of the Mississippi River outlet on the east side of the lake, Diamond Point, and the ridge between Diamond Point and the outlet of the Mississippi River. The greatest concentration of spawning walleyes occurred along the ridge between Diamond Point and the outlet of the Mississippi River in relatively shallow water over more coarse substrate than is typically found in the lake. No walleye eggs were found in egg baskets placed in putative spawning areas during 2003, but one was found by scapnetting on the ridge off of Diamond Point during spring 2004. These methods were conducted in shallow waters less than 1.5 m deep. Spawning shoals may be relatively small and isolated in waters deeper than 1.5 m. further studies utilizing a combination of SCUBA or an underwater video camera and scapnetting should be conducted to pinpoint spawning sites in deeper waters. Based on the presence of adequate natural recruitment, the amount of walleye spawning habitat does not appear to be limiting. Thus, habitat enhancement is not recommended at this time.
Download or read book Habitat Suitability Information written by Thomas E. McMahon and published by . This book was released on 1984 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Walleye War written by Larry Nesper and published by U of Nebraska Press. This book was released on 2002-01-01 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt: For generations, the Ojibwe bands of northern Wisconsin have spearfished spawning walleyed pike in the springtime. The bands reserved hunting, fishing, and gathering rights on the lands that would become the northern third of Wisconsin in treaties signed withøthe federal government in 1837, 1842, and 1854. Those rights, however, would be ignored by the state of Wisconsin for more than a century. When a federal appeals court in 1983 upheld the bands' off-reservation rights, a deep and far-reaching conflict erupted between the Ojibwe bands and some of their non-Native neighbors. Starting in the mid-1980s, protesters and supporters flocked to the boat landings of lakes being spearfished; Ojibwe spearfisher-men were threatened, stoned, and shot at. Peace and protest rallies, marches, and ceremonies galvanized and rocked the local communities and reservations, and individuals and organizations from across the country poured into northern Wisconsin to take sides in the spearfishing dispute. From the front lines on lakes to tense, behind-the-scenes maneuvering on and off reservations, The Walleye War tells the riveting story of the spearfishing conflict, drawing on the experiences and perspectives of the members of the Lac du Flambeau reservation and an anthropologist who accompanied them on spearfishing expeditions. We learn of the historical roots and cultural significance of spearfishing and off-reservation treaty rights and we see why many modern Ojibwes and non-Natives view them in profoundly different ways. We also come to understand why the Flambeau tribal council and some tribal members disagreed with the spearfishermen and pursued a policy of negotiation with the state to lease the off-reservation treaty rights for fifty million dollars. Fought with rocks and metaphors, The Walleye War is the story of a Native people's struggle for dignity, identity, and self-preservation in the modern world.
Download or read book Modelling and Quantitative Methods in Fisheries written by Malcolm Haddon and published by CRC Press. This book was released on 2001-05-31 with total page 428 pages. Available in PDF, EPUB and Kindle. Book excerpt: Quantitative methods and mathematical modelling are of critical importance to fishery science and management but, until now, there has been no book that offers the sharp focus, methodological detail, and practical examples needed by non-specialist fishery scientists and managers, and ecologists. Modelling and Quantitative Methods in Fisheries fills that void. To date, methodology books in fisheries science have been limited to cookbook approach to problems; simple compilations; or expositions in which either too much theory or insufficient methodological detail is given. The text is organized into three sections: an introduction to modelling in fisheries and ecology, a straight methodology section covering a range of methods, and a section focusing on specific fields in fisheries science. This book is timely as it addresses a topic of recent debate in fisheries and ecology, describing and comparing the uses of Least Squares, Maximum Likelihood, and Bayesian quantitative methods. Designed as stand-alone units, each chapter provides examples from both classic and recent literature and comes with dedicated Excel spreadsheets that permit you to delve into every detail of the analysis. All of these spreadsheets serve as active examples, which can easily be modified and customized and can be used as templates for analyzing your own data. The spreadsheets permit you to learn at your own speed and cover the simplest linear regression to the more complex non-linear modelling using maximum likelihood. Data analysis and modelling are best learned by doing and not just by reading. This book illustrates, step by step, the analyses it covers. More detailed in terms of introductory quantitative methods and modelling as applied to fisheries than any other book available, Modelling and Quantitative Methods in Fisheries gives you the advantage by supplying the full details of the analysis so that understanding the material is a matter of following the book.
Download or read book RECREATIONAL FISHERIES written by Food and Agriculture Organization of the United Nations and published by Food & Agriculture Org.. This book was released on 2018-11-15 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt: The importance of recreational fisheries is increasing in many transitional economies. These guidelines focus on recreational fisheries and describe strategies to promote environmentally sustainable and socially responsible management of such fisheries. To this end, the document details policy, managerial and behavioural recommendations for sustainable recreational fisheries.
