Download or read book A Fine scale Analysis of Spatial and Temporal Population Genetic Patterns in the Yellow Perch Perca Flavescens written by Timothy J. Sullivan (Jr.) and published by . This book was released on 2013 with total page 117 pages. Available in PDF, EPUB and Kindle. Book excerpt: The genetic structure of a species encompasses the distribution of genetic diversity and composition among its component populations, providing important insight for conservation and management. This knowledge can be used to evaluate life history, gene flow, recruitment dynamics, and responses to exploitation and habitat changes. Discerning the changes or consistencies in population genetic patterns over time can provide important insights into the mechanisms that regulate genetic resiliency. Ultimately, analyses of spatial and temporal population genetic patterns may be used to conserve genetic diversity, unique variability, and adaptive potential. The yellow perch Perca flavescens (Percidae: Teleostei) provides an opportunity to investigate these patterns, as its population groups have experienced variable annual recruitment, high exploitation as a popular fishery in the Laurentian Great Lakes, and have not been evaluated previously for temporal consistency in genetic patterns. The objective of this thesis is to analyze the spatial and temporal genetic diversity and divergence of yellow perch spawning groups in order to better understand its life history responses and advance knowledge aiding its management. Population genetic patterns of yellow perch spawning groups are assessed across the Huron-Erie Corridor (HEC) and from locations in Lakes St. Clair, Erie, and Ontario using 15 nuclear DNA microsatellite loci. Results of this thesis research indicate that yellow perch spawning groups have appreciable genetic diversity and are distinguished from one another by considerable genetic differences. For example, the group spawning at the Belle Isle restoration site in the Detroit River has relatively high genetic diversity, with an appreciable number of alleles and private alleles. Yellow perch spawning at sites in Lakes St. Clair, Erie, and Ontario also show substantial genetic diversity whose levels are consistent over time. However, the genetic composition of yellow perch spawning at some given locations varied among different sampling years. Some age cohorts born in specific years who spawned together at Dunkirk NY (1980-2008) and Monroe MI (1997-2004), genetically varied across age groups. This pattern did not correspond to a pattern of isolation by time (i.e., there was not a consistent trend). The effective population size of yellow perch spawning at the Dunkirk, NY location is relatively modest and appears to have remained relatively consistent in size over the past 30 years. These spatial and temporal patterns likely are linked to life-history characters, such as kin-aggregation, natal site fidelity, and/or a sweepstakes model of reproduction. Genetic monitoring and development of long-time data sets like those assembled here are recommended to provide an important management assessment tool for monitoring and conserving fishery populations.
Download or read book Population Genetic Structure and Biogeographic Patterns in the Yellow Perch Perca Flavescens written by Osvaldo J. Sepulveda Villet and published by . This book was released on 2011 with total page 209 pages. Available in PDF, EPUB and Kindle. Book excerpt: One of the most pertinent questions in conservation management is how to discern a species' genetic structure, notably the degree of genetic diversity, composition, and divergence among its component populations. These measures may be used to assess migration patterns, biogeographic variability, recruitment success, and the effects of anthropogenic exploitation and habitat loss. Additionally, comparisons of a species' genetic diversity and divergence patterns across large connected populations versus those in isolated relict areas may provide important data for understanding its distributional response to changes in habitat connectivity and other perturbations. Aquatic taxa offer ideal case studies for interpreting these patterns because their dispersal and gene flow often are constrained through narrow connectivity channels that have changed over geological time and from contemporary anthropogenic alterations. This dissertation's research objective is to understand the interplay between historic (climate change, lake basin formation, and channel connectivity shifts during and after the Pleistocene glaciations) and modern-day factors (fishery exploitation, stocking supplementation, and habitat loss) in shaping population genetic patterns of the yellow perch Perca flavescens (Percidae: Teleostei) across its native North American range. A dual genome and modified landscape genetic approach is employed, analyzing complete sequences from the mitochondrial DNA control region (912 base pairs) and 15 nuclear DNA microsatellite loci. Results support contribution from three primary glacial refugia to contemporary northern populations: the Missourian refugium founded the Northwest Lake Plains region (37% assignment probability) and western Lake Superior (96% assignment), the Mississippian refugium colonized most of the Great Lakes (83-100% assignment), and the Atlantic refugium contributed to the lower Great Lakes and founded the northern Atlantic seaboard (82-100% assignment). When a fine-scale genetic approach is used, connected sites in Lake Erie remain divergent despite close geographical locations and the potential for migration and admixture. Understanding the influence of past and current waterway connections on the genetic structure of yellow perch populations may help us to assess the role of ongoing climate change towards conserving aquatic biodiversity. Analysis of yellow perch population genetic structure and variation across its native range additionally promises to be an important fishery management tool for understanding its diversity and resilience, as well as helping to interpret its phylogeographic history.
Download or read book Spatially explicit Habitat Characterization Suitability Analysis Verification and Modelling of the Yellow Perch Perca Flavescens Mitchell 1814 Population in Long Point Bay Lake Erie microform written by Susan Elisabeth Doka and published by Library and Archives Canada = Bibliothèque et Archives Canada. This book was released on 2004 with total page 317 pages. Available in PDF, EPUB and Kindle. Book excerpt: Different approaches were used to characterize, assess, test and model the fish-habitat interactions of yellow perch in Long Point Bay. Chapter 1 describes the methodologies for explicitly characterizing spatial and temporal habitat through mapping and modelling. Chapter 2 connects habitat and ontogenetic niche shifts in perch life history, with the aim of determining suitable habitat availability for the Long Point Bay perch population. Habitat suitability indices and models were used to map and identify the areas of suitable habitat, including thermal habitat. Chapter 3 compares a known distribution of yellow perch larvae with HSI predictions of habitat suitability as a validation exercise. Abundance and size distributions from the survey were compared to thermal and HSI predictions of suitable habitat to test for correspondence. The relationship between food availability and habitat characteristics, especially vegetation, were also tested. A model was developed in Chapter 4 that concentrated on the first year of life and the effect of consecutive constraints on early life stages with different habitat requirements. The purpose of the model was to compare the potential growth and survival of consecutive life stages in a spatially explicit manner when different habitat-based rules are imposed. The results highlight the importance of life history theory and knowledge of mechanisms used in habitat selection for determining limits to fish production.
Download or read book Spatial and Temporal Variation in Lake Huron Yellow Perch Perca Flavescens Life History Traits written by Ryder Jace Rutko and published by . This book was released on 2021 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Knowledge of fish population structure allows fisheries managers to account for potentially different responses of discrete groups to external stressors. Life history traits are very useful indicators of population structure because they provide information about fish populations that incorporates elements of genetics, environment, and resource use simultaneously. In Lake Huron, the yellow perch (Perca flavescens) is managed based on 17 geographic management units; however, it is unknown if management units accurately represent discrete perch groups. Furthermore, it is unclear whether yellow perch population structure changed temporally over the course of the major ecosystem shift in the early 2000s, where invasive mussels decreased zooplankton and benthic invertebrate abundance, altered nutrient and energy distribution, and reduced lake productivity. Here, I used data from the Ontario Ministry of Natural Resources and Forestry's Lake Huron Index Netting Program to derive sex-specific life history traits for yellow perch including size at maturity, age at maturity, maximum size, lifespan, and growth at age 2 from contemporary (2009-2018) and historical (1990-1999) timeframes. In the first part of my study, I examined how yellow perch were spatially structured in Lake Huron. Generalized linear mixed models showed that yellow perch life history traits varied with location and depth, but primarily with latitude. Male maximum size was 1.1-fold greater at southernmost sites (276.3 ± 4.6 mm) compared to northernmost sites (247.7 ± 3.2 mm), while female maximum size was 1.1-fold greater at southernmost sites (318.5 ± 1.3 mm) compared to northernmost sites (293.9 ± 8.1 mm). Longitudinal and depth-based variation existed in fewer life history traits. Female maximum size was 1.2-fold greater at westernmost sites (293.9 ± 8.1 mm) compared to easternmost sites (244.2 ± 12.4 mm). Male growth at age 2 was 1.2-fold greater at deeper sites (160.0 ± 11.4 mm) compared to shallower sites (131.1 ± 0.3 mm), while female growth at age 2 was 1.2-fold greater at deeper sites (166.1 ± 16.2 mm) compared to shallower sites (139.6 ± 4.0 mm). I found 6 discrete clusters of yellow perch in Lake Huron based on variation in life history trait values, encompassing fish in the (1) South Basin, which were superior in growth, maturity, and lifespan; (2) Main Basin, which grew fast, but died fast; (3) North Channel, which had average growth and maturity, and lived long; (4) northeast Georgian Bay, which were short lived, slow growers; (5) central Georgian Bay, which had slow growth and fast maturity, but died quickly; and (6) south Georgian Bay, which had average growth and maturity, but died quickly. In the second part of my study, I found that yellow perch life history trait values showed no significant temporal variation. The only life history trait that was different before and after the major ecosystem shift was male maximum size, which increased on average 5% from 232.9 ± 23.3 mm to 244.6 ± 30.6 mm. The influence of location and depth varied across timeframes depending on the life history trait analyzed, but did not follow any specific pattern. Clusters of perch identified based on combinations of life history traits were similar in the contemporary and historical datasets. Current management units appear to adequately represent yellow perch population structure in Lake Huron, which suggests that no major change to the spatial arrangement of these management units is necessary. The discovery of no change in life history values over time despite the major ecosystem shift is surprising, and suggests that recent population declines are not via major shifts in the parameters I assessed.
Download or read book Spatial and Temporal Variability in Post larval Yellow Perch Density written by Steve Hauschildt and published by . This book was released on 2019 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Yellow Perch Perca flavescens are important as forage for other species and for sport fishing in many northern lakes. However, estimating post-larval Yellow Perch populations can be difficult because of many environmental factors that cause unexplained variation. The objective of this study was to help reduce unexplained variation by determining a post-larval Yellow Perch population density estimate on Blackduck Lake, MN, provide guidance to help dete1mine the number of trawls required for trawling-based recruitment indices to achieve varying levels of precision, and test for the effects of wind speed and direction on post-larval Yellow Perch spatial variability. This study estimated a density of 0.45 fish/m3 (0.58 SD) during the sampling period (26 Jun - 07 Jul 2017). It was determined that between 10-15 trawls produced a precise density estimate; however, trawls should be taken over multiple days in varying wind speeds to avoid over/under estimation. Trawling should also be performed in-line with wind direction to ensure non-bias estimates are calculated from both upwind and downwind sectors. This study determined wind speed and direction had a significant influence on the distribution of post-larval Yellow Perch, as more fish were caught in the downwind sector until winds reached 15 kmph. At 15 kmph, fish densities were equal in the upwind and downwind sectors of the lake. Wind did not have a significant influence though on how post-larval Yellow Perch were distributed by total length. During high wind events, more fish were found in the upwind sector of the lake, suggesting that post¬larval fish are being moved laterally out of non-towable areas. From the results of this study it appears Yellow Perch must continually relocate back into shallow areas after each high wind event moves them out of the non-towable areas, until they are strong enough to resist the wind."-Abstract.
Download or read book Spatial and Temporal Variation in Yellow Perch Perca Flavescens Diets written by Travis Taylor and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Yellow Perch Walleye and Sauger Aspects of Ecology Management and Culture written by John Clay Bruner and published by Springer Nature. This book was released on 2021-11-21 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt: Walleye, one of the most sought-after species of freshwater sport fishes in North America, has demonstrated appreciable declines in their numbers from their original populations since the beginning of the 20th century. Similarly, Yellow Perch, once the most commonly caught sport fish and an important commercial species in North America, have also shown declines. Compiling up-to-date information on the biology and management of Walleye, Sauger, and Yellow Perch, including research on systematics, genetics, physiology, ecology, movement, population dynamics, culture, recent case histories, and management practices, will be of interest to managers, researchers, and students who deal with these important species, particularly in light of habitat alterations, population shifts, and other biotic and abiotic factors related to a changing climate.
Download or read book Population Biology of Yellow Perch in Southern Lake Michigan 1971 79 written by LaRue Wells and published by . This book was released on 1983 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study was based mainly on gill-net collections of yellow perch made during July and August 1971-79, in southern Lake Michigan at Grand Haven, Saugatuck, South Haven, Benton Harbor, and New Buffalo, Michigan; Michigan City and Gary, Indiana; Waukegan, Illinois; and Milwaukee, Wisconsin. Geographical abundance varied and were partly attributable to differences in fishing mortality.
Download or read book Genetic Variation of 17 Wild Populations of Yellow Perch Perca Flavescens from the Midwest and East Coast Assessed Using Microsatellites written by Michael N. Grzybowski and published by . This book was released on 2007 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Biology of Perch written by Patrice Couture and published by CRC Press. This book was released on 2015-08-05 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt: The genus Perca includes only three species of fish, but they are ubiquitous and abundant in freshwater and brackish environments of the northern hemisphere, from North America to Europe and Asia. These species are important both ecologically and economically. In Biology of Perch, world-renowned specialists review and update the biology of these fi
Download or read book Interannual and Spatial Variation in the Population Genetic Composition of Young of the year Pacific Ocean Perch Sebastes Alutus in Alaskan Waters written by Lisa M. Kamin and published by . This book was released on 2010 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt: "We know little about the population structure of Gulf of Alaska (GOA) and Bering Sea rockfish, including Pacific ocean perch (POP, Sebastes alutus), and early life history information is sparse for many rockfish species. Young-of-the-year (YOY) POP were collected with surface trawls during surveys of juvenile salmon in the GOA and Bering Sea. These samples presented a unique opportunity to study POP genetics and life history. Fourteen microsatellite loci were used to characterize the genetic variation in POP collected in a total of 45 hauls over five years. The coincidence in timing and location of several collections between years allowed examination of both fine- and broad-scale geographic variation (within cohorts) as well as interannual (between cohorts) genetic variation. The geographic genetic structure of these collections was also compared to geographic structure of adult POP described in a previous study (Palof, 2008). As in the adult study, significant broad-scale geographic divergence was observed in YOY POP in the GOA. Fine-scale geographic divergence was also observed and may be the result of variable current regimes and oceanographic features at several locations. The limited amount of temporal variation observed seems to be the result of variable oceanography and fine-scale population structure rather than the influence of a sweepstakes effect. The relationship between genetic divergence and geographic separation is virtually identical in YOY and adult POP, which confirms that dispersal of POP is limited in all life stages and also demonstrates that most YOY are produced by adults that are located nearby"--Leaf iii.
Download or read book Temperature Effects on Young Yellow Perch Perca Flavescens Mitchill written by J. Howard McCormick and published by . This book was released on 1976 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Growth Study of a Population of Yellow Perch Perca Flavescens Mitchill from Traverse Bay with an Analysis of the Selection of Key Scales written by Franklin C. Daiber and published by . This book was released on 1947 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Genetic Analysis of Yellow Perch P e r c a F l a v e s c e n s Populations in the Chesapeake Bay written by Lynn A. Middleton and published by . This book was released on 1995 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Diet Patterns Competitive Potential and Variation in Delta15N of Juvenile Morone Americana and Perca Flavescens in the Albemarle Estuarine System North Carolina written by Jason J. Clermont and published by . This book was released on 2008 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Canadian Journal of Fisheries and Aquatic Sciences written by and published by . This book was released on 2014-05 with total page 666 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Population Analysis of Yellow Perch Perca Flavescens Mitchill in Indiana Waters of Lake Michigan written by Gregory E. Asbury and published by . This book was released on 1981 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt:
