Megalobrama amblycephala grazes preferentially on Hydrilla verticillata but makes more efficient use of Vallisneria denseserrulata: implications for biological control of submerged macrophytes
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چکیده
منابع مشابه
Differences in Bacterial Community Structure on Hydrilla verticillata and Vallisneria americana in a Freshwater Spring
The phylogenetic composition of the epiphytic bacterial community of an invasive aquatic plant (Hydrilla verticillata) and a native species (Vallisneria americana [eelgrass]) of the Wakulla Spring (Florida) was investigated, along with the water column bacterial composition, using clone libraries of the 16S rRNA genes. The bacterial clones from three clone libraries were classified into 182 ope...
متن کاملNutritional characteristics of Hydrilla verticillata and its effect on two biological control agents
A complex of abiotic and biotic factors is known to impact the establishment and success of biological control agents. Experiments using the ephydrid fly Hydrellia pakistanae Deonier have demonstrated that hydrilla, Hydrilla verticillata (L.f.) Royle, containing low protein content appears to impact larval development time and the number of eggs oviposited per female. Eggs per female were over ...
متن کاملEffects of nitric oxide on zinc tolerance of the submerged macrophyte Hydrilla verticillata
Heavy metal pollution has become an increasingly recognized threat to the aquatic environment. In response to heavy metal stresses, various terrestrial plants produce the hormone nitric oxide (NO), but minimal information is available about the role of NO in aquatic macrophytes under high zinc (Zn) stress. In this study, we measured physiochemical parameters in the leaves of Hydrilla verticilla...
متن کاملGrowth and Development of the Biological Control Agent Bagous hydrillae as Influenced by Hydrilla ( Hydrilla verticillata ) Stem Quality
Plant quality of dioecious hydrilla was studied as a factor that may influence larval survival, growth, and development of the biological control agent Bagous hydrillae. Nitrogen content and stem toughness of hydrilla varied among the five sites studied and between summer and fall collections. The nitrogen content of hydrilla collected during summer ranged from 1.2 to 3.6% (dry weight) and duri...
متن کاملEffect of Aquathol K on Hydrilla verticillata (L.F.) Royle
A recently synthesized herbicide Aquathol K was tested on the water weed Hydrilla verticil/ata. Results from the laboraoty tests indicated that Aquathol K with concentrations ranging from 1.0 mg/l to 2.0 mg/l can kill this weed. EVidently, 100% injury was achieved within 10 days for the plants treated with the highest concentration., 2. 0 mg/l of Aquathol K. The rate of 100% injury was recorded...
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ژورنال
عنوان ژورنال: Knowledge & Management of Aquatic Ecosystems
سال: 2019
ISSN: 1961-9502
DOI: 10.1051/kmae/2019022