Skip to main content
WCS
Menu
Library
Library Catalog
eJournals & eBooks
WCS Research
Archives
Research Use
Finding Aids
Digital Collections
WCS History
WCS Research
Research Publications
Science Data
Services for WCS Researchers
Archives Shop
Bronx Zoo
Department of Tropical Research
Browse By Product
About Us
FAQs
Intern or Volunteer
Staff
Donate
Search WCS.org
Search
search
Popular Search Terms
WCS History
Library and Archives
Library and Archives Menu
Library
Archives
WCS Research
Archives Shop
About Us
Donate
en
fr
Title
Turbidity reduces hatching success in threatened spotted gar (Lepisosteus oculatus)
Author(s)
Gray, S. M.;Chapman, L. J.;Mandrak, N. E.
Published
2012
Publisher
Environmental Biology of Fishes
Published Version DOI
https://doi.org/10.1007/s10641-012-9999-z
Abstract
Turbidity, and associated sedimentation, is increasing in aquatic ecosystems globally and is thought to be a major driver of aquatic biodiversity loss. In this study, hatching success of Spotted Gar (Lepisosteus oculatus), a Threatened species in Canada, is reported for eggs held under clear and turbid conditions. Spotted Gar embryos were held in either clear or mildly turbid water (similar to 5 NTU). Fertilized eggs held in turbid water exhibited a final 24 % reduction in hatching success by the end of the hatching period. Turbidity is identified as a potential threat for this species in Canada. The decrease in hatching success found here indicates that this early life history stage is particularly vulnerable to disturbance by turbidity and sedimentation.
Keywords
Abiotic turbidity;Sedimentation;Freshwater fish;Egg survival;Conservation;FRESH-WATER FAUNA;SUSPENDED SEDIMENT;EGGS;LARVAE;LAKE;GROWTH;RISK;LOUISIANA;IMPACTS
Access Full Text
A full-text copy of this article may be available. Please email the
WCS Library
to request.
Back
PUB13908