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osu1268153735.pdf (7.09 MB)
ETD Abstract Container
Abstract Header
Optimizing Larval Fish Survival and Growth through an Analysis of Consumer and Resource Interactions in Percid Culture Ponds
Author Info
Briland, Ruth
Permalink:
http://rave.ohiolink.edu/etdc/view?acc_num=osu1268153735
Abstract Details
Year and Degree
2010, Master of Science, Ohio State University, Evolution, Ecology, and Organismal Biology.
Abstract
Management of aquaculture systems should be based on ecologically sound principles and experimentation to determine species- and site-specific management practices that both optimize fish production and extend our understanding. Herein, we exemplify an approach to meet this goal, evaluating the effectiveness of three common management levers: pond fertilization regimen, pond filling and stocking schedule, and fry stocking rate, on larval production of two popular percid fish, walleye (
Sander vitreus
) and saugeye (
S. vitreus
x
S. canadense
), at Senecaville State Fish Hatchery in Ohio. These levers are based on established ecological principles and hypotheses concerning fish recruitment, including resource-driven or “bottom-up” control, the match-mismatch hypothesis, and predator-driven or “top-down” control, respectively. Our experiments demonstrate that “top-down” effects (i.e., fish predation on zooplankton) drive fish growth, and we recommend that fry stocking density be reduced to les than 20 percid fry/m
3
to yield suitable fish size at harvest. At higher stocking rates, percid planktivory can deplete zooplankton prey resources, resulting in poor fish growth and unacceptably small percid size at harvest. The other two management levers (i.e., manipulating fertilization rate and pond filling and stocking schedules) had little impact on percid production; however, these ecological management levers may be critical for successful fish production at other hatcheries, given different environmental conditions (e.g., source water productivity) or fish taxa. Overall, we illustrate an ecologically sound approach to assess management protocols for fish production in aquaculture settings that can be broadly applied to culture of many species at a variety of culture locations.
Committee
Stuart Ludsin, PhD (Advisor)
David Culver, PhD (Advisor)
Roy Stein, PhD (Committee Member)
Pages
114 p.
Subject Headings
Aquaculture
;
Ecology
;
Fish Production
;
Freshwater Ecology
Keywords
larval fish ecology
;
aqucuaculture
;
walleye
;
saugeye
Recommended Citations
Refworks
EndNote
RIS
Mendeley
Citations
Briland, R. (2010).
Optimizing Larval Fish Survival and Growth through an Analysis of Consumer and Resource Interactions in Percid Culture Ponds
[Master's thesis, Ohio State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=osu1268153735
APA Style (7th edition)
Briland, Ruth.
Optimizing Larval Fish Survival and Growth through an Analysis of Consumer and Resource Interactions in Percid Culture Ponds.
2010. Ohio State University, Master's thesis.
OhioLINK Electronic Theses and Dissertations Center
, http://rave.ohiolink.edu/etdc/view?acc_num=osu1268153735.
MLA Style (8th edition)
Briland, Ruth. "Optimizing Larval Fish Survival and Growth through an Analysis of Consumer and Resource Interactions in Percid Culture Ponds." Master's thesis, Ohio State University, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=osu1268153735
Chicago Manual of Style (17th edition)
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Document number:
osu1268153735
Download Count:
634
Copyright Info
© 2010, all rights reserved.
This open access ETD is published by The Ohio State University and OhioLINK.