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Thiamine status and culture of rainbow smelt (Osmerus mordax) from Owasco Lake, New York

Journal of Freshwater Ecology

By:
, , , , , and
DOI: 10.1080/02705060.2010.9665070

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Abstract

In 2005, 2008, and 2009, eggs were collected for analysis of total thiamine fiom 2, 58, and 30 gravid rainbow smelt (Osmerus mordax) captured in Edgewater Creek, Owasco Lake, New York, respectively. Mean egg thiamine concentrations (nmollg i standard error) in 2005, 2008, and 2009 were 6.0 ± 1.8, 13.3 ± 0.5, and 14.9 ± 0.2, respectively. Eggs from three more females in 2009 were manually spawned, fertilized, and incubated in the laboratory until they hatched on day 11. The mean thiamine concentration in these eggs was 2.7 ± 0.3 nmol/g. To detect possible thiamine deficiency, on day 12 larvae from each female were divided into two groups and immersed in either static culture water alone or the same water with 5,000 mg/L thiamine for 6 hrs, after which they were held as six individual groups and fed twice daily starting on day 23 until all control larvae had died on day 29. Thiamine treatment significantly (P<0.00l) increased survival of unfed larvae between days 15 and 18 and fed larvae between days 24 and 29 (P<0.05). While most smelt captured in 2008 and 2009 contained adequate egg thiamine, some produced eggs low in thiamine, resulting in increased mortality of their fry, which was reduced by treatment with thiamine.

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Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Thiamine status and culture of rainbow smelt (Osmerus mordax) from Owasco Lake, New York
Series title:
Journal of Freshwater Ecology
DOI:
10.1080/02705060.2010.9665070
Volume
25
Issue:
2
Year Published:
2010
Language:
English
Publisher:
Taylor & Francis
Publisher location:
Philadelphia, PA
Contributing office(s):
Great Lakes Science Center
Description:
7 p.
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Journal of Freshwater Ecology
First page:
211
Last page:
217
Country:
United States
State:
New York
Other Geospatial:
Owasco Lake