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Book An Evaluation of Channel Catfish Populations in Ohio Impoundments

Download or read book An Evaluation of Channel Catfish Populations in Ohio Impoundments written by Frederick Stevenson and published by . This book was released on 1986 with total page 37 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Fish and Wildlife Reference Service Newsletter

Download or read book Fish and Wildlife Reference Service Newsletter written by and published by . This book was released on 1994 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Catfish 2000

Download or read book Catfish 2000 written by Elise R. Irwin and published by . This book was released on 1999 with total page 540 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Factors Related to Stocking Success of 178 mm Channel Catfish in Medium Size Oklahoma Reservoirs

Download or read book Factors Related to Stocking Success of 178 mm Channel Catfish in Medium Size Oklahoma Reservoirs written by David Randall Stewart (Jr.) and published by . This book was released on 2013 with total page 153 pages. Available in PDF, EPUB and Kindle. Book excerpt: The channel catfish Ictalurus punctatus is a commonly stocked freshwater fish species. Prior studies indicate that stocking advanced size (> 150 mm total length (TL)) fingerlings increases post-release survival but few studies have identified factors that influence stocking success. The present study was conducted to determine stocking contribution and growth of advanced size channel catfish (~178 mm TL), evaluate the impact of stocking and cessation of stocking, quantify habitat relationships, and evaluate trophic relationships of wild and stocked fish in medium size Oklahoma reservoirs: lakes McMurty and Ponca (control lakes), Okemah and Okmulgee (cease-stock lakes), and Greenleaf and Lone Chimney (stocked lakes). Channel catfish were immersed in a buffered solution of oxytetracycline (OTC) and stocked in October 2010 at lakes Greenleaf and Lone Chimney. The higher relative abundance of resident channel catfish in Lake Lone Chimney may have affected survival and growth of stocked fish. Stocking contribution at Lake Lone Chimney was low (~30%) compared to Lake Greenleaf (~98%). Fish stocked in Greenleaf reached an average length of 348 mm two years post-stock, whereas fish stocked in Lone Chimney grew to 240 mm, an increase by only 62 mm since stocking. To evaluate the full impact of stocking, two reservoirs were no longer stocked as part of an experimental manipulation. Relative abundance, growth, and size structure responded as expected. Cessation of stocking resulted in lower relative abundance, increased growth rates, and larger size structure. Whereas relative abundance increased for one stocked lake (Greenleaf), mean length at age and growth decreased, and size structure shifted to smaller size fish. Results from the multi-scale models indicate significant associations with both near-shore and land-use habitat types. Channel catfish were found at higher abundances in turbid areas with rock and coarse-woody debris, and a negative relationship was evident with aquatic vegetation, residential development and agriculture land-use. Trophic relationships indicated that intra-specific competitive interactions were evident. These results provide further evidence that density-dependent mechanisms likely reduced both survival and growth of stocked fish in Lake Lone Chimney. It also suggests that both habitat and relative stock size should be considered before stocking advanced size fingerlings.

Book North American Journal of Fisheries Management

Download or read book North American Journal of Fisheries Management written by and published by . This book was released on 1996 with total page 1016 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book A Microchemical Analysis to Assess Contributions of Stocked and Wild Channel Catfish Ictalurus Punctatus to State owned Lakes in Arkansas

Download or read book A Microchemical Analysis to Assess Contributions of Stocked and Wild Channel Catfish Ictalurus Punctatus to State owned Lakes in Arkansas written by Morgan Reeves Winstead and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Channel Catfish are broadly distributed in the U.S. and are important commercially and recreationally in many rivers, lakes, reservoirs, and streams. Since they are a popular sportfish, many state-owned lakes are stocked with a variety of sizes to enhance population sizes and provide angling opportunities. The goals of this study were to determine the contributions of stocked fish, determine the fish size at stocking, and to assess the contribution of yearling and catchable sizes to the stocked percentage. Fish samples were obtained from three hatcheries and six lakes within different ecoregions across Arkansas to assess whether chemical signatures were different among locations. Sectioned pectoral spines were analyzed for Sr:Ca and Ba:Ca using laser ablation-ICPMS to determine whether location-specific Sr:Ca and Ba:Ca signatures were reflected in pectoral spine samples, and to assess the accuracy with which fish could be assigned to their collection location using spine Sr:Ca and Ba:Ca. Fin spine core Sr:Ca and Ba:Ca data were also used to identify stocked fish and determine size at stocking for hatchery-origin fish sampled from each of the six lakes. Spine microchemistry represents a non-lethal approach to identify stocked catfish and infer size at stocking, which will better inform allocation of hatchery-produced fish. Differences in pectoral spine Sr:Ca edge signatures among locations were detected, which were primarily driven by differences in geology among ecoregions. Assignment accuracy of fish to collection location using Random Forest Modeling was 88% or greater for all but one of the study lakes. This allowed for application of the random forest model on pectoral spine core Sr:Ca and Ba:Ca to assign individuals sampled from the lakes as hatchery or wild origin. Among all the Channel Catfish sampled from the six lakes, 45% were identified as hatchery origin and 46% of those were stocked as catchable size fish. Contributions of stocked fish varied among study lakes from 0% to 100%. This was the first study to demonstrate that pectoral spine microchemistry can be used for assessing both stocking contribution and inferring fish size at stocking. Overall, this study will aid in the allocation of hatchery-reared catfish by management biologists, and could lead to more projects focused on exploring stocking contribution by microchemistry, such as assessment of how habitat enhancement may influence the contribution of natural reproduction to catfish populations.

Book An Evaluation of the Lower Ohio River Channel Blue and Flathead Catfish Fishery

Download or read book An Evaluation of the Lower Ohio River Channel Blue and Flathead Catfish Fishery written by Devon C. Oliver and published by . This book was released on 2021 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt: In 2015, Illinois changed size and harvest limits for catfishes (blue catfish Ictalurus furcatus, flathead catfish Pylodictis olivaris, and channel catfish Ictalurus punctatus) in the Ohio River to match those of neighboring states in order to provide continuity of the regulations and promote a trophy catfish fishery. Regulations imposed a daily limit of one blue catfish or flathead catfish ≥ 35 inches (88.9 cm) and one channel catfish ≥ 28 inches (71.1 cm) per fisher and a 13 inch (33.0 cm) minimum length limit for all species with no bag limit. Although management regulations were implemented, potential efficacy of the implemented regulations and appropriate (i.e. most precise or accurate with fewest samples) monitoring protocols were unknown. Furthermore, there was general lack of understanding of early life movements, natal dispersal timing and principal recruitment sources that aide in determining appropriate spatial scale for monitoring and managing lower Ohio River catfish stocks. To fill these knowledge gaps the following methods were employed: 1) simulation modeling was used to evaluate precision in estimating catch and size distribution metrics for monitoring population trends with increasing sample size (i.e., sampling events), 2) N-mixture modeling was used to estimate size selectivity of multiple gears using detection probability as a robust alternative to size-specific catchability coefficients, 3) otolith microchemistry (Sr:Ca and Ba:Ca) was employed to determine principal recruitment sources, early life movement patterns, and provide fisheries managers with a better understanding of the spatial extent to which management actions should be implemented, 4) Bayesian modeling was used to estimate growth and mortality, 5) Yield-per-recruit modeling was used to estimate and evaluate fishing mortality rates that would result in growth overfishing (FMAX) and yield at FMAX (YPRMAX) for three management scenarios (no regulation, minimum length limit [33.0 cm or greater] and a permissive slot limit [33.0 cm-88.9 cm; blue catfish and flathead catfish]). The simulation models presented account for the uncertainty associated with heterogeneous selectivity of a gear, and minimize the impact of rare or extreme catch values. Trotlines and low pulse (15-pps) electrofishing generally required the fewer samples to achieve stable values of catch per unit of effort (CPUE), proportional size distribution (quality; PSDQ), and coefficient of variation (CV) than other gears based on simulation modeling. Abundance and detection probabilities were estimated separately for each species of catfish by length category within and across gears, producing a species-gear-size correction for catch bias used in estimating Proportional Size Distribution-Quality (PSDQ). Corrected (i.e., accounting for detection) PSDQ values were lower than uncorrected estimates suggesting a positive bias for larger fish across the entire sampling regime. Managers should use a combination of low pulse electrofishing, trotlines, and high pulse (60-pps) electrofishing in their monitoring efforts for all three species. Based on microchemistry, ictalurid catfishes in the lower Ohio River appear to recruit from multiple sources and make movements across a broad geographic scale. Additionally, some catfish may be originating from outside the portion of the Ohio River that is managed by Illinois (lower 214 km). Fisheries managers should take this into account when implementing management actions. However, most ictalurid catfishes originated from riverine (e.g., Ohio and Mississippi River) natal environments and not from smaller tributaries, and managers should not expect tributaries to compensate for weak year-classes within the river. Based on yield per recruit modeling, catfish stocks are unlikely to benefit from current regulations or a theoretical minimum size limit given the near complete overlap of YPRMAX confidence intervals for all estimable scenarios and the small statistical difference (1-3%) based on FMAX between the most permissive and most restrictive scenarios. While statistical differences in FMAX exist, they are likely biologically irrelevant, exceeding the precision of estimation methods for F. While there is some indication that alignment and continuity of management regulations is warranted based on microchemistry, the efficacy of the current permissive slot regulations is questionable based on the models presented and the life history of these fishes. There is no advantage to implementing any of the modeled regulations in terms of increasing FMAX or YPRMAX.

Book A Cost Benefit Evaluation of Stocking Various Size Channel Catfish Into Established Populations Containing Largemouth Bass

Download or read book A Cost Benefit Evaluation of Stocking Various Size Channel Catfish Into Established Populations Containing Largemouth Bass written by Anthony J. Spinelli and published by . This book was released on 1981 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Comparison of Two Stocking Densities for Production of Advanced Channel Catfish Ictalurus Punctatus in Plastic lined Ponds

Download or read book Comparison of Two Stocking Densities for Production of Advanced Channel Catfish Ictalurus Punctatus in Plastic lined Ponds written by Reese Sparrow and published by . This book was released on 1996 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Growth Responses of Channel Catfish Ictalurus Punctatus and Blue Catfish Ictalurus Furcatus to Different Stocking Rates and Floating Versus Sinking Feed

Download or read book Growth Responses of Channel Catfish Ictalurus Punctatus and Blue Catfish Ictalurus Furcatus to Different Stocking Rates and Floating Versus Sinking Feed written by Stephen R. Wells and published by . This book was released on 1973 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Evaluation of the Size specific Survival of Walleye and Channel Catfish Stocked in a Centrarchid dominated Impoundment January 1 1986 Through August 31 1996

Download or read book Evaluation of the Size specific Survival of Walleye and Channel Catfish Stocked in a Centrarchid dominated Impoundment January 1 1986 Through August 31 1996 written by D. H. Wahl and published by . This book was released on 1996 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt: