LIVIVO - The Search Portal for Life Sciences

zur deutschen Oberfläche wechseln
Advanced search

Search results

Result 1 - 5 of total 5

Search options

  1. Article: Exploring Legacy Data Sets to Infer Spatial and Temporal Trends in the Ictalurid Assemblage of an Atlantic Slope River

    Rachels, Kyle T.

    North American journal of fisheries management. 2021 Oct., v. 41 Suppl S1

    2021  

    Abstract: The Cape Fear River basin is located along the southeastern Atlantic Slope and is the largest river basin located within North Carolina. Historically, the ictalurid assemblage was characterized by five species of bullhead Ameiurus spp. and three species ... ...

    Abstract The Cape Fear River basin is located along the southeastern Atlantic Slope and is the largest river basin located within North Carolina. Historically, the ictalurid assemblage was characterized by five species of bullhead Ameiurus spp. and three species of madtom Noturus spp. Channel Catfish Ictalurus punctatus were introduced in the early 20th century, followed by Flathead Catfish Pylodictis olivaris in 1965 and Blue Catfish Ictalurus furcatus in 1966. Long‐term analysis of the ictalurid assemblage has been confounded by disparate data sets in both electronic and historical paper‐based document archives. The goal of this study was to merge contemporary and legacy agency data sets to elucidate spatial and temporal trends in the ictalurid assemblage of the Cape Fear River basin. Rotenone surveys conducted in the 1960s documented abundant madtoms and White Catfish Ameiurus catus throughout the basin. Native species comprised the majority of the ictalurid assemblage through the early 1990s. Since 1990, Blue and Flathead catfish have been the dominant species observed. The largest native ictalurid, the White Catfish, has not been collected since 2008. Nonmetric multidimensional scaling suggests that native ictalurids were more prevalent in small tributaries with increasing distance from the initial adult Flathead Catfish stocking location. Despite the widespread distribution and abundance of nonnative ictalurids, several native species are still found in small tributaries in upstream watersheds. The North Carolina Catfish Management Plan prioritizes the conservation of native ictalurids in the state's Atlantic Slope rivers; however, some species may already be extirpated.
    Keywords Ameiurus catus ; Ictalurus furcatus ; Ictalurus punctatus ; Noturus ; Pylodictis olivaris ; administrative management ; adults ; basins ; catfish ; dominant species ; indigenous species ; rivers ; rotenone ; watersheds ; North Carolina
    Language English
    Dates of publication 2021-10
    Size p. S195-S204.
    Publishing place John Wiley & Sons, Ltd
    Document type Article
    Note JOURNAL ARTICLE
    ZDB-ID 779391-1
    ISSN 0275-5947
    ISSN 0275-5947
    DOI 10.1002/nafm.10652
    Database NAL-Catalogue (AGRICOLA)

    More links

    Kategorien

    In stock of ZB MED Bonn / Germany

    Z 4271: Show issues

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

  2. Article ; Online: {NCIFD} — An Internal R Package for a Fisheries Agency

    Wheeler, A. Powell / Rachels, Kyle T. / Dockendorf, Kevin J.

    Fisheries. 2023 Oct., v. 48, no. 10 p.411-417

    2023  

    Abstract: We developed an R package for the Inland Fisheries Division of the North Carolina Wildlife Resources Commission to help team members share R functions and data sets. The {NCIFD} package stores several functions that were developed for agency research, ... ...

    Abstract We developed an R package for the Inland Fisheries Division of the North Carolina Wildlife Resources Commission to help team members share R functions and data sets. The {NCIFD} package stores several functions that were developed for agency research, including cleanBIODE(), which cleans query results from a database of standardized fish samples and imports the data into an R session. In addition, {NCIFD} stores a variety of data sets including observations from ongoing research projects, hatchery records, and administrative information. Stored in a package, data sets are instantly available for exploration and analysis in an R session, can share a common naming convention, and retain their metadata. Although developing an R package requires effort, we believe it is a useful tool that other fisheries agencies should encourage interested staff to explore. We share advice to help others get started while avoiding some missteps we encountered.
    Keywords databases ; fish ; hatcheries ; metadata ; wildlife ; North Carolina
    Language English
    Dates of publication 2023-10
    Size p. 411-417.
    Publishing place John Wiley & Sons, Ltd
    Document type Article ; Online
    Note JOURNAL ARTICLE
    ZDB-ID 430448-2
    ISSN 0363-2415
    ISSN 0363-2415
    DOI 10.1002/fsh.10974
    Database NAL-Catalogue (AGRICOLA)

    More links

    Kategorien

    In stock of ZB MED Bonn / Germany

    Z 4272: Show issues

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

  3. Article: Exploring Causal Factors of Spawning Stock Mortality in a Riverine Striped Bass Population

    Rachels, Kyle T. / Ricks, Benjamin R.

    Marine and coastal fisheries. 2018 Aug., v. 10, no. 4

    2018  

    Abstract: The recovery of the Atlantic Striped Bass Morone saxatilis stock in the 1990s is an important example of effective natural resources management. Implementation of Atlantic States Marine Fisheries Commission (ASMFC) harvest regulations reduced mortality, ... ...

    Abstract The recovery of the Atlantic Striped Bass Morone saxatilis stock in the 1990s is an important example of effective natural resources management. Implementation of Atlantic States Marine Fisheries Commission (ASMFC) harvest regulations reduced mortality, protected older and more fecund females, and contributed to the formation of dominant year‐classes in the 1980s and 1990s. However, Striped Bass stocks south of Albemarle Sound, North Carolina, are not subject to ASMFC management plans, and many populations have failed to attain recovery goals. Catch‐curve analyses indicate that the Neuse River Striped Bass population continues to experience spawning stock exploitation rates similar to those implicated in the decline of the Atlantic Migratory and Albemarle Sound/Roanoke River stocks in the 1970s. From 1994 to 2015, Striped Bass instantaneous fishing mortality (F) in the Neuse River ranged from 0.12 to 0.84 and exceeded the overfishing threshold (FTₕᵣₑₛₕₒₗd = 0.41) in 12 of 22 years. A global linear model using environmental and exploitation factors accounted for 55% of the variability in spawning stock discrete annual mortality. An information‐theoretic approach was used to elucidate the best linear model for predicting discrete annual mortality. The best model included previous‐year gill‐net effort and same‐year commercial harvest (Akaike weight = 0.64, R² = 0.50). Model‐averaged coefficients for gill‐net effort and commercial harvest suggested total exploitation impacts that were congruent with other studies of Neuse River Striped Bass. Results indicate that reducing exploitation to target levels will require substantial reductions in gill‐net effort in areas of the Neuse River where Striped Bass occur. Reducing exploitation may increase spawning stock biomass and advance the age structure of spawning females, conferring an increased likelihood of successful recruitment and production of dominant year‐classes during periods of favorable environmental conditions.
    Keywords Morone saxatilis ; age structure ; biomass ; gillnets ; linear models ; migratory behavior ; mortality ; riparian areas ; rivers ; North Carolina
    Language English
    Dates of publication 2018-08
    Size p. 424-434.
    Publishing place John Wiley & Sons, Ltd
    Document type Article
    Note JOURNAL ARTICLE
    ZDB-ID 2483227-3
    ISSN 1942-5120
    ISSN 1942-5120
    DOI 10.1002/mcf2.10038
    Database NAL-Catalogue (AGRICOLA)

    More links

    Kategorien

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

  4. Article ; Online: Elevated levels of per- and polyfluoroalkyl substances in Cape Fear River Striped Bass (Morone saxatilis) are associated with biomarkers of altered immune and liver function.

    Guillette, T C / McCord, James / Guillette, Matthew / Polera, M E / Rachels, Kyle T / Morgeson, Clint / Kotlarz, Nadine / Knappe, Detlef R U / Reading, Benjamin J / Strynar, Mark / Belcher, Scott M

    Environment international

    2020  Volume 136, Page(s) 105358

    Abstract: Per- and polyfluoroalkyl substances (PFAS) are anthropogenic chemicals of concern that persist in the environment. Environmental monitoring revealed high concentrations of hexafluoropropylene oxide dimer acid (HFPO-DA) and other novel PFAS in the lower ... ...

    Abstract Per- and polyfluoroalkyl substances (PFAS) are anthropogenic chemicals of concern that persist in the environment. Environmental monitoring revealed high concentrations of hexafluoropropylene oxide dimer acid (HFPO-DA) and other novel PFAS in the lower Cape Fear River; however, there is limited information on PFAS exposures and effects of this contamination on aquatic biota. Serum concentrations of 23 PFAS in Striped Bass (Morone saxatilis) from the Cape Fear River (n = 58) and a reference population from an aquaculture laboratory on the Pamlico/Tar watershed (n = 29) were quantified using liquid chromatography and high-resolution mass spectrometry, and correlations between PFAS concentrations and health-related serum biomarkers were evaluated. Perfluorooctane sulfonate, the predominant PFAS in Cape Fear River Striped Bass serum, was detectable in every sample with serum concentrations reaching 977 ng/mL. Perfluorononanoic and perfluorodecanoic acid were also detected in all samples, with perfluorohexanesulfonic acid present in >98% of the samples. HFPO-DA (range <0.24-5.85 ng/mL) and Nafion byproduct 2 (range <0.2-1.03 ng/mL) were detected in 48% and 78% of samples, respectively. The mean total PFAS concentration found in domestic Striped Bass raised in well-water under controlled aquaculture conditions was 40 times lower, with HPFO-DA detected in 10% of the samples, and Nafion byproduct 2 was not detected. The elevated PFAS concentrations found in the Cape Fear River Striped Bass were associated with biomarkers of alterations in the liver and immune system.
    MeSH term(s) Animals ; Bass ; Biomarkers ; Fluorocarbons/toxicity ; Liver ; Rivers ; Water Pollutants, Chemical/toxicity
    Chemical Substances Biomarkers ; Fluorocarbons ; Water Pollutants, Chemical
    Language English
    Publishing date 2020-02-07
    Publishing country Netherlands
    Document type Journal Article ; Research Support, N.I.H., Extramural ; Research Support, Non-U.S. Gov't
    ZDB-ID 554791-x
    ISSN 1873-6750 ; 0160-4120
    ISSN (online) 1873-6750
    ISSN 0160-4120
    DOI 10.1016/j.envint.2019.105358
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

    In stock of ZB MED Cologne/Königswinter

    Zs.A 3131: Show issues Location:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
    bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular
    Jg. 1995 - 2021: Lesesall (2.OG)
    ab Jg. 2022: Lesesaal (EG)

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

  5. Article: Elevated levels of per- and polyfluoroalkyl substances in Cape Fear River Striped Bass (Morone saxatilis) are associated with biomarkers of altered immune and liver function

    Guillette, T.C / McCord, James / Guillette, Matthew / Polera, M.E / Rachels, Kyle T / Morgeson, Clint / Kotlarz, Nadine / Knappe, Detlef R.U / Reading, Benjamin J / Strynar, Mark / Belcher, Scott M

    Environment international. 2020 Mar., v. 136

    2020  

    Abstract: Per- and polyfluoroalkyl substances (PFAS) are anthropogenic chemicals of concern that persist in the environment. Environmental monitoring revealed high concentrations of hexafluoropropylene oxide dimer acid (HFPO-DA) and other novel PFAS in the lower ... ...

    Abstract Per- and polyfluoroalkyl substances (PFAS) are anthropogenic chemicals of concern that persist in the environment. Environmental monitoring revealed high concentrations of hexafluoropropylene oxide dimer acid (HFPO-DA) and other novel PFAS in the lower Cape Fear River; however, there is limited information on PFAS exposures and effects of this contamination on aquatic biota. Serum concentrations of 23 PFAS in Striped Bass (Morone saxatilis) from the Cape Fear River (n = 58) and a reference population from an aquaculture laboratory on the Pamlico/Tar watershed (n = 29) were quantified using liquid chromatography and high-resolution mass spectrometry, and correlations between PFAS concentrations and health-related serum biomarkers were evaluated. Perfluorooctane sulfonate, the predominant PFAS in Cape Fear River Striped Bass serum, was detectable in every sample with serum concentrations reaching 977 ng/mL. Perfluorononanoic and perfluorodecanoic acid were also detected in all samples, with perfluorohexanesulfonic acid present in >98% of the samples. HFPO-DA (range <0.24–5.85 ng/mL) and Nafion byproduct 2 (range <0.2–1.03 ng/mL) were detected in 48% and 78% of samples, respectively. The mean total PFAS concentration found in domestic Striped Bass raised in well-water under controlled aquaculture conditions was 40 times lower, with HPFO-DA detected in 10% of the samples, and Nafion byproduct 2 was not detected. The elevated PFAS concentrations found in the Cape Fear River Striped Bass were associated with biomarkers of alterations in the liver and immune system.
    Keywords Morone saxatilis ; aquaculture ; biomarkers ; blood serum ; byproducts ; environmental monitoring ; immune system ; liquid chromatography ; liver ; liver function ; mass spectrometry ; perfluorohexane sulfonic acid ; perfluorooctane sulfonic acid ; rivers ; sulfonates ; sulfonic acids ; watersheds ; well water
    Language English
    Dates of publication 2020-03
    Publishing place Elsevier Ltd
    Document type Article
    ZDB-ID 554791-x
    ISSN 1873-6750 ; 0160-4120
    ISSN (online) 1873-6750
    ISSN 0160-4120
    DOI 10.1016/j.envint.2019.105358
    Database NAL-Catalogue (AGRICOLA)

    More links

    Kategorien

    In stock of ZB MED Cologne/Königswinter

    Zs.A 3131: Show issues Location:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
    bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular
    Jg. 1995 - 2021: Lesesall (2.OG)
    ab Jg. 2022: Lesesaal (EG)

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

To top