Download or read book Evaluation of Striped Bass Morone Saxatilis Condition in Coastal North Carolina Using Physiological and Condition Indices written by David E. Gentry and published by . This book was released on 2006 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Natal Origin of Central Southern Management Area North Carolina Striped Bass Inferred from Otolith Microchemistry written by Jeffrey M. Dobbs and published by . This book was released on 2013 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt: Striped bass (Morone saxatilis) is an important commercial and game fish throughout North Carolina coastal waters. These fish have spawning populations present in all of the state's coastal rivers, however populations south of the Albemarle Sound in North Carolina have rarely been studied. These populations lie within North Carolina's immense Central Southern Management Area (CSMA). The CSMA stretches from the northernmost point of Pamlico Sound in the north down to the South Carolina border in the south. There are three main watersheds in the CSMA: the Tar/Pamlico River, the Neuse River, and the Cape Fear River. These rivers have spawning populations of striped bass, yet very few age 0 fish have been collected to support this in recent years. My study investigated the natal origin of CSMA striped bass through the use of water and otolith elemental analyses. Surface water samples and environmental data were collected once per month from 15 sample sites throughout the CSMA from May 2011 to July 2012. Two additional sample ponds from Edenton National Fish Hatchery were sampled once per week for two weeks in April 2012. Samples were analyzed for concentrations of calcium (Ca), strontium (Sr), magnesium (Mg), barium (Ba), and manganese (Mn) using an inductively-coupled plasma optical emission spectrometer. Concentrations were recorded as element to Ca ratios to account for the role of Ca in otolith deposition. Salinity differed significantly by location, while temperature and dissolved oxygen differed significantly by month and season. Only temperature differed significantly by year. All measured elements were consistently detected at every sample site. All measured elements differed significantly by location, but only Mn differd by month, season, and year. A multivariate classification of samples to their river of origin yielded only 42% success. When the classification was narrowed to include only one low salinity sample site per river, samples were classified to their sample site of origin with 82% accuracy. Fish (N=251) were collected from the Neuse and Tar/Pamlico rivers from April 2011 to April 2012. Fish total length (TL), total weight (TW), gonad weight, and liver weight were collected to calculate relative weight (Wr), liver somatic index (LSI), and gonadal somatic index (GSI). Otoliths were removed for ageing and elemental analysis. Elemental analysis was conducted by measuring concentrations of Sr, Mg, Mn, and Ba in the natal origin region of the otolith using laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS). Condition of fish collected in the Neuse and Tar/Pamlico was sub-optimal. Fish GSI follow predictable yearly cycles, but were maturing a full year earlier than Roanoke River striped bass. Using the Sr signature from otolith elemental analysis, 88.4% of fish originated from the hatchery. Fish determined to be of natural origin were classified to their river of origin with 58.0% accuracy, and to their management area of origin with 84.0% accuracy. This study suggests that striped bass has become a put and take fishery in the Neuse and Tar/Pamlico rivers.

Download or read book The Impact of Estuarine Degradation and Chronic Pollution on Populations of Anadromous Striped Bass Morone Saxatilis in the San Francisco Bay Delta California written by Jeannette A. Whipple 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 Synopsis of Biological Data on Striped Bass Morone Saxatilis Walbaum written by Eileen M. Setzler-Hamilton and published by . This book was released on 1980 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Atlantic Coastal Striped Bass written by and published by . This book was released on 1989 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Taxonomic Status and Reproduction of Striped Bass Morone Saxatilis in Florida written by James M. Barkuloo and published by . This book was released on 1970 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: Striped bass from the Apalachicola and St. Johns Rivers in Florida were compared taxonomically with striped bass from other drainages on the Atlantic coast and Gulf of Mexico. Both rivers contain endemic striped bass populations. The Apalachicola River population was found to be a separate race. Sexually mature striped bass from the St. Johns were induced to spawn using hormonal injections. Few fry were produced due to extreme temperature fluctuations. Reproduction requirements and factors limiting the abundance of striped bass in Florida are discussed.

Download or read book Maturation and Fecundity of the Neuse and Tar Pamlico Rivers Striped Bass Morone Saxatilis Stocks in Coastal North Carolina written by Evan Herring Knight and published by . This book was released on 2016 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Albemarle/Roanoke stock makes up the largest contingent of Striped Bass (Morone saxatilis) in the state; however, other economically important populations exist elsewhere. The Central Southern Management Area (CSMA) is one such region. Striped Bass populations are sustained in the CSMA through stocking by the North Carolina Wildlife Resources Commission (NCWRC), but the goal of the fishery management plan is to establish a self-sustaining spawning population of Striped Bass in the region. In order to improve management of the CSMA Striped Bass population, maturation and fecundity estimates are needed for stock assessment models. Striped Bass were sampled on and near the spawning grounds in the Neuse and Tar/Pamlico rivers during the pre-spawn, spawning, and post-spawn period (February-June). Each fish was measured (fork length and total length, mm) and weighed (g). Otoliths were removed for ageing and otolith chemistry. Sex was determined, and gonads were removed and weighed to determine the GSI and phase of reproduction. LSI and K factors were used to assess the condition of fish. Otoliths were sectioned for age, and then examined by LA-ICPMS to determine changes in concentrations of Strontium in the first year of life to determine origin. The age at 50% maturity was 2.67 years; by Age 3 98.2% of female Striped Bass were sexually mature. CSMA Striped Bass matured 0.5 years earlier compared to the ASMA/RRMA population. Fecundity ranged from 223,110 eggs for an Age-3 female to 3,273,206 eggs for an Age-10 female (Mean=769,048.54; SE=54,047.42; n=87). Fish in the CSMA produced more eggs than ASMA/RRMA Striped Bass when compared by age. Observed lengths at age were significantly different between the CSMA and ASMA/RRMA females (F=978.92; DF=1; p

Download or read book Habitat Suitability Index Models and Instream Flow Suitability Curves written by Johnie H. Crance and published by . This book was released on 1984 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Movements of North Carolina Striped Bass Morone Saxatilis Inferred Through Otolith Microchemistry written by Daniel J. Zurlo and published by . This book was released on 2014 with total page 147 pages. Available in PDF, EPUB and Kindle. Book excerpt: Striped Bass, Morone saxatilis, is an anadromous, recreationally and commercially important fish species found throughout the U.S. Atlantic east coast, whose migrations have been intensely studied. A review of the relevant literature on Striped Bass migrations revealed that the paradigm of Striped Bass migration along the U.S. Atlantic coast should be updated, as new information has shown that in addition to the Chesapeake Bay and Hudson River, the Roanoke River, NC, Delaware River, and possibly the Shubenacadie River, Nova Scotia, Canada, may also contribute fish to the mixed Atlantic Migratory Stock. The needs for an updated delineation of stocks that contribute to the Atlantic Migratory Stock and determination of inshore migrations and habitat use were identified as additional avenues for further research. In effort to answer the latter question, the inshore movements and potential mixing of North Carolina stocks of adult Striped Bass from separate management areas (Albemarle Sound Management Area, ASMA, and Central Southern Management Area, CSMA) were determined using otolith microchemistry. Trace element ratios (strontium:calcium, Sr:Ca; barium:calcium, Ba:Ca; magnesium:calcium, Mg:Ca; and manganese:calcium, Mg:Ca) measured through inductively coupled plasma optical emission spectrometry (ICP-OES) from ASMA and CSMA water samples were used to determine that each management area had different water chemistries through linear discriminant function analysis (LDFA), allowing for discrimination of otolith chemistries of fish from different management areas. Adult otolith elemental concentrations of Sr, Ba, Mg, and Mn, measured using laser ablation inductively couple plasma mass spectroscopy, of fish from separate management areas were compared using linear discriminant function analysis, which determined that little mixing of adult fish occurred between the two management areas, except in years of high abundance of ASMA fish, in which those fish would migrate to the CSMA. The same methods were used on CSMA fish determined to be of hatchery or wild origin by Dobbs (2013) to determine that CSMA hatchery and wild fish use different habitat during their sub-adult and early adult lives, but similar habitat as they aged. Finally, otolith microchemistry was used in an attempt to determine if the Roanoke River, NC (ASMA) contributed fish to the Atlantic Migratory Stock, as North Carolina Division of Marine Fisheries (NCDMF) tag returns indicated the Roanoke River was contributing significant numbers of fish. Otolith Sr:Ca ratios were used to determine anadromous migrations, as otolith Sr:Ca is directly correlated to ambient salinity. Results did not agree well with NCDMF tagging, as many larger fish exhibited resident Sr:Ca profiles, whereas NCDMF tag returns indicated that most, larger (>800 mm total length, total length) fish were anadromous and undertook long distance migrations. It is possible that the Roanoke River harbors discrete resident and anadromous contingents of large, adult Striped Bass.

Download or read book Population Dynamics of Atlantic Coast Striped Bass Morone Saxatilis written by Herbert M. Austin and published by . This book was released on 1980 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Exercise Conditioning Effects on the Morphology and Physiology of Young of the year Striped Bass Morone Saxatilis Walbaum written by Paciencia S. Young and published by . This book was released on 1993 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Evaluation of Potential Striped Bass Management Scenarios by Use of a Numerical Salt Transport Model written by and published by . This book was released on 1991 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book North Carolina Striped Bass written by Lynn T. Henry and published by . This book was released on 1992 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Information generated by Project AFS-26 updates and complements the historical long-term monitoring database for the Albemarle Sound/Roanoke River stock of striped bass (Morone saxatilis). These data provide the basis for evaluation of stock condition and are essential in guiding management efforts."--Leaf iii.

Download or read book Striped Bass and Other Morone Culture written by R.M. Harrell and published by Elsevier. This book was released on 1997-05-23 with total page 387 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is an up-to-date discussion of the culture of striped bass and other Morone spp. The subject matter is broken down into functional components of the spawning, husbandry, and economics of the industry, and is written by some of the leading scientists in each of the respective areas of discussion. The chapters on reproduction, nutrition, environmental requirements, transportation, economics and fish processing are not found anywhere else in the striped bass literature. The chapter on water quality takes a very non-traditional approach to considering the impact water quality has on the production success of Morone and offers some very thought-provoking ideas on water management.Primarily written as a reference work, this book is intended to complement existing technique manuals.

Download or read book Striped Bass Management written by United States. Congress. House. Committee on Merchant Marine and Fisheries. Subcommittee on Fisheries and Wildlife Conservation and the Environment and published by . This book was released on 1990 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Maternal Input of Striped Bass Morone Saxatilis written by Brie Elking and published by . This book was released on 2014 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt: Otolith studies have become more prevalent in recent years as use has expanded from ageing to examination of migration patterns and fidelity to natal habitats, and more recently examining otoliths for possible maternal contribution to progeny otoliths. The otoliths of larval Striped Bass, Morone saxatilis (Walbaum; 1792), were used to determine the presence of maternal contribution through three experiments. The first experiment was to examine the formation of larval otoliths to determine if otoliths formed prior to/ during the yolk sac stage when maternal influences are present, and thus if maternal contribution is possible. Two of the three otolith pairs (sagitta and lapillus) are formed during the embryo stage (sagitta) or post hatch (lapillus). The sagittal otoliths are the most often used otolith in microchemical studies; therefore its formation during the embryo stage suggests maternal contribution to progeny otoliths is possible. The second experiment used microchemical analysis of adult Striped Bass soft tissue (muscle, liver, kidney, and gonads) to determine whether adult Striped Bass develop trace elemental signatures similar to the adult otoliths. The gonadal tissues (ovaries and testes) were found to have similar signatures to adult otoliths utilizing a linear discriminate function analysis. As the two previous experiments support the hypothesis of maternal contribution the final step was to run a discriminate function analysis between the progeny and maternal otoliths. Embryo sagittal otoliths correctly identified the maternal clusters 91.67% of the time (n = 12), yolk sac larvae 66.67% of the time (n = 15), and non-yolk sac larvae only 60.94% of the time (n = 64). Progeny otoliths were also able to identify maternal river (Neuse, Roanoke or Tar); embryos classified the river 83.33% of the time (n = 12), yolk sac larvae classified 93.33% of the time (n = 15), and non-yolk sac larvae classified with 44.44% (n = 72) accuracy. Results of this study validate the hypothesis of maternal contribution and support the hypothesis of maternal life history determination from progeny.

Download or read book Species Profiles written by Thomas J. Hassler and published by . This book was released on 1988 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt: