Salinity Tolerances Of Eastern Oysters Bred From Native Louisiana Broodstock
Advanced Search
Select up to three search categories and corresponding keywords using the fields to the right. Refer to the Help section for more detailed instructions.

Search our Collections & Repository

For very narrow results

When looking for a specific result

Best used for discovery & interchangable words

Recommended to be used in conjunction with other fields

Dates

to

Document Data
Library
People
Clear All
Clear All

For additional assistance using the Custom Query please check out our Help Page

The NOAA IR serves as an archival repository of NOAA-published products including scientific findings, journal articles, guidelines, recommendations, or other information authored or co-authored by NOAA or funded partners. As a repository, the NOAA IR retains documents in their original published format to ensure public access to scientific information.
i

Salinity Tolerances Of Eastern Oysters Bred From Native Louisiana Broodstock

Filetype[PDF-453.41 KB]


Details You May Also Like

Details:

  • Alternative Title:
    UROP Project
  • Personal Author:
    Constans, Michael
  • NOAA Program & Office:
  • Sea Grant Program:
    LSU (Louisiana Sea Grant)
  • Description:
    The objective of this project was to compare the tolerance of eastern oysters from different populations and of different ploidies to low salinity events that are increasing in frequency in Louisiana estuaries. Oysters from three different stocks, collected from three different sites in Louisiana, as well as diploid and triploid oysters for each stock, for a total of 6 groups, were placed in tanks with salinities of 2, 4, 20, and 36. The oysters’ cumulative mortality, condition index, and osmolality was tracked over a 52-day period. Mortality was significantly higher in the tank with a salinity of 2 but there were no significant differences observed between groups within that tank. Oyster health, evaluated by measuring condition index and osmolality, was also not affected by stock or ploidy in most of the salinity treatments. The lack of difference between stocks for cumulative mortality indicates that adaptive evolution due to different salinity conditions among sites did not have a large enough effect to impact mortality at set salinities. The physiological differences between diploids and triploids additionally did not have a large enough effect to impact mortality at set salinities. Future experiments could examine if these observations would hold true with rapid changes in salinity or with consistent salinity changes.
  • Document Type:
    Technical Report
  • Rights Information:
    Public Domain
  • Compliance:
    Submitted
  • Main Document Checksum:
  • Download URL:
  • File Type:

Supporting Files

  • No Additional Files
More +

You May Also Like

Checkout today's featured content at repository.library.noaa.gov

Version 3.27.1