ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

X
feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    facet.materialart.
    Unknown
    Recovery and status of shortnose sturgeon in the Hudson River (2021)
    University of Maryland Center for Environmental Science | Solomons, MD
    In:  http://aquaticcommons.org/id/eprint/3005 | 130 | 2011-09-29 18:02:52 | 3005 | University of Maryland Center for Environmental Science. Chesapeake Biological Laboratory
    Details
    Publication Date: 2021-06-30
    Description: Shortnose sturgeon (Acipenser brevirostrum), an endangered species, has experienced a several-fold increase in abundance in the Hudson River in recent decades. This population growth followed a substantial improvement in water quality during the 1970s to a large portion (c. 40%) of the species' summertime nursery area. Age structure and growth were investigated to evaluate the hypothesis that improvements in water quality stimulated population recoverythrough increased survival of young of the year juveniles. Specimens were captured using gill nets bi-monthly from November 2003 to November 2004 (n = 596). Annuli in fin spine sections were used to generate estimates of sturgeon age. Based upon a marginal increment analysis, annuli were determined to form at an annual rate. Age determinations yielded a catch composed of age 5-30 years for sizes 49-105cm Total Length (n = 554). Individual growth rate (vonBertalanffy coefficients: TL, = 1045mm, K = 0.07) for the population was similar to previous growth estimates within the Hudson River as well as proximal estuaries. Hindcast year-class strengths, based upon a recent stock assessment (Bain et al. 2000) and corrected for gill net mesh selectivity and cumulative mortality indicated high recruitments (28,000-43,000 yearlings)during 1986-1992, which were preceded and succeeded by c.5-year periods of lower recruitment (5,000-1 5,000 yearlings). Recruitment patterns were corroborated by trends in shortnose sturgeon bycatch from a Hudson utilities-sponsored monitoring program. Results indicated that Hudson River shortnose sturgeon abundance increased due to the formation of several strong year-classes occurring about five years subsequent to improved water quality in importantnursery and forage habitats in the upper Hudson River estuary. (PDF contains 108 pages.)
    Description: Hudson River Foundation for Science and Environmental Research, Inc.
    Keywords: Ecology ; Management ; Fisheries ; Aquaculture ; Sturgeon ; Recovery ; Growth estimates ; Recruitment patterns ; Hudson River ; Albany ; Aging
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER (OA)
  • 2
    facet.materialart.
    Unknown
    Alkalinity, Salinity, Bivalve Biomass, Streamflow and, Submerged Aquatic Vegetation in Tidal Tributaries of the Chesapeake Bay from 1984 to 2018. (2023)
    Biological and Chemical Oceanography Data Management Office (BCO-DMO). Contact: bco-dmo-data@whoi.edu
    Details
    Publication Date: 2023-02-17
    Description: Dataset: Alkalinity, salinity, bivalve biomass, streamflow, and submerged aquatic vegetation.
    Description: Alkalinity, Salinity, Bivalve Biomass, Streamflow and Submerged Aquatic Vegetation in Tidal Tributaries of the Chesapeake Bay from 1984 to 2018. For a complete list of measurements, refer to the full dataset description in the supplemental file 'Dataset_description.pdf'. The most current version of this dataset is available at: https://www.bco-dmo.org/dataset/887278
    Description: NSF Division of Ocean Sciences (NSF OCE) OCE-1537013, NSF Division of Ocean Sciences (NSF OCE) OCE-1536996, NSF Division of Atmospheric and Geospace Sciences (NSF AGS) AGS‐ 1560339, National Aeronautics & Space Administration (NASA) NNX14AM37G, National Aeronautics & Space Administration (NASA) NNX14AF93G
    Keywords: Alkalinity ; estuaries ; Chesapeake Bay
    Repository Name: Woods Hole Open Access Server
    Type: Dataset
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER (OA)
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...