7 results for Eichhornia crassipes (common water-hyacinth)

Impact ID Scientific Name Impact Type Study Type Study Location Impact Description Geographic Location Reference
3507 Eichhornia crassipes Predation/Herbivory Observational Field Pontederia crassipes is associated with a diversity of invertebrate species, including crustaceans, rotifers, insects, and zooplanktons. 34001
3513 Eichhornia crassipes Predation/Herbivory Observational Field Pontederia crassipes reduces phosphorus, sunlight, and dissolved oxygen, all needed for phytoplankton and fishes. 34001
3514 Eichhornia crassipes Predation/Herbivory Observational Field Drifting mats of Pontederia crassipes disrupt submerged vegetation and reduce floating and marginal food plants for waterfowl. 34001
7012 Eichhornia crassipes Predation/Herbivory Anecdotal N/A Eichhornia crassipes forms dense monocultures that can threaten local native species diversity and change the physical and chemical aquatic environment, thus altering ecosystem structure and function by disrupting food chains and nutrient cycling. 42102
7013 Eichhornia crassipes Predation/Herbivory Observational Field Eichhornia crassipes can potentially alter predator-prey relationships. In San Joaquin Delta, California, insect densities where lower in patches of E. crassipes and there was a difference in insect composition between E. crassipes and the native pennywort (Hydrocotyle umbellata). It is suggested that the presence of E. crassipes may influence native invertebrate community assemblages. San Joaquin Delta, California 30554
7417 Eichhornia crassipes Predation/Herbivory Experimental Laboratory In a laboratory setting Pomacea maculata showed high levels of consumption of the native species Ceratophyllum demersum, Hymenocallis liriosme, Ruppia maritima, Sagittaria lancifolia and the invasive species Colocasia esculenta, Alternanthera philoxeroides, and Eichhornia crassipes. 17897
7661 Eichhornia crassipes Predation/Herbivory Anecdotal N/A Dense mats of Eichhornia crassipes block light and reduce phytoplankton productivity. 42428

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