Food Consumption by Larval Gizzard Shad: Zooplankton Effects and Implications for Reservoir Communities
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منابع مشابه
Food Consumption by Larval Gizzard Shad: Zooplankton Effects and Implications for Reservoir Communities
—Because peak abundance of larval gizzard shad Dorosoma cepedianum occurs simultaneously with the midsummer decline of macrozooplankton in Ohio reservoirs, we hypothesized that zooplanktivory by larval gizzard shad caused this decline. To test this hypothesis, we compared larval food consumption with zooplankton productivity in two reservoirs. Larval gizzard shad began to influence zooplankton ...
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—We examined diet patterns of omnivorous gizzard shad Dorosoma cepedianum in Acton Lake, Ohio, during 1994–1997 using a multiple stable isotope analysis to quantify the role of this species in the system. On most dates, zooplankton were relatively depleted in d13C (about 230‰ to 225.5‰) compared with sediments (225‰), permitting construction of a mixing model to determine the proportion of C de...
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متن کاملDirect and Indirect Effects of Gizzard Shad on Bluegill Growth and Population Size Structure
—Competition with gizzard shad Dorosoma cepedianum has been shown to influence survival of larval bluegills Lepomis macrochirus as well as growth and size structure of largemouth bass Micropterus salmoides, which prey on these planktivorous species. However, little is known about how the presence of gizzard shad influences bluegills beyond the larval stage. We examined bluegill–gizzard shad int...
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ژورنال
عنوان ژورنال: Transactions of the American Fisheries Society
سال: 1992
ISSN: 0002-8487,1548-8659
DOI: 10.1577/1548-8659(1992)121<0494:fcblgs>2.3.co;2