Quantifying Linkages among Gizzard Shad, Zooplankton, and Phytoplankton in Reservoirs
نویسندگان
چکیده
منابع مشابه
Effects of gizzard shad on benthic communities in reservoirs
Effects of gizzard shad Dorosoma cepedianum on benthic communities in a large southern reservoir (Lake Texoma, U.S.A.) were examined during two field enclosure and exclosure experiments in which enclosures were stocked at high and low densities in 1998 and 1999, respectively. In both years, chironomid abundance significantly increased in treatments that excluded large fishes from foraging on se...
متن کاملFood 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 ...
متن کاملInteractions between Larval White Crappie and Gizzard Shad: Quantifying Mechanisms in Small Ponds
—To test potential competitive interactions between larvae of white crappie Pomoxis annularis and of gizzard shad Dorosoma cepedianum. we added adult gizzard shad to eight of twelve 0.1-ha ponds that had been stocked with adult white crappies. Larval white crappies and larval gizzard shad appeared within 1 week of one another and larval white crappie density did not differ between treatments. Z...
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...
متن کاملSpatial interaction among nontoxic phytoplankton, toxic phytoplankton, and zooplankton: emergence in space and time.
In homogeneous environments, by overturning the possibility of competitive exclusion among phytoplankton species, and by regulating the dynamics of overall plankton population, toxin-producing phytoplankton (TPP) potentially help in maintaining plankton diversity-a result shown recently. Here, I explore the competitive effects of TPP on phytoplankton and zooplankton species undergoing spatial m...
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ژورنال
عنوان ژورنال: Transactions of the American Fisheries Society
سال: 1996
ISSN: 0002-8487,1548-8659
DOI: 10.1577/1548-8659(1996)125<0027:qlagsz>2.3.co;2