starry stonewort

Nitellopsis obtusa
(starry stonewort)
Algae
Exotic

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Impacts

21 results for Nitellopsis obtusa (starry stonewort)

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Impact ID	Scientific Name	Impact Type	Study Type	Study Location	Impact Description	Reference
3996	Nitellopsis obtusa	Habitat Alteration	Experimental	Field	Macrophyte biomass is lower when starry stonewort (Nitellopsis obtusa) is abundant.	29177
4001	Nitellopsis obtusa	Habitat Alteration	Observational	Field	Starry stonewort (Nitellopsis obtusa) forms thick mats that can completely cover the...	19736
4002	Nitellopsis obtusa	Habitat Alteration	Observational	Field	Starry stonewort (Nitellopsis obtusa) becomes dense and forms “pillows” of biomass at...	19736
4006	Nitellopsis obtusa	Habitat Alteration	Observational	Field	When starry stonewort (Nitellopsis obtusa) dominates, biomass of all other competing...	19736
4011	Nitellopsis obtusa	Habitat Alteration	Observational	Field	Starry stonewort (Nitellopsis obtusa) acts as a favorable substrate for zebra mussels...	19736
4014	Nitellopsis obtusa	Habitat Alteration	Observational	Field	Starry stonewort (Nitellopsis obtusa) impacts fish spawning by creating a physical barrier...	19736
4016	Nitellopsis obtusa	Habitat Alteration	Observational	Field	Because of its mat-forming growth strategy, starry stonewort (Nitellopsis obtusa)...	19736
4018	Nitellopsis obtusa	Habitat Alteration	Observational	Field	Zooplankton species may shift from pelagic communities to littoral communities in the presence of...	19736
4021	Nitellopsis obtusa	Habitat Alteration	Anecdotal	Field	In its introduced range, starry stonewort (Nitellopsis obtusa) peaks in biomass in late...	35575
4026	Nitellopsis obtusa	Habitat Alteration	Experimental	Field	At shallow water depths, starry stonewort (Nitellopsis obtusa) can fill the water column...	35682
4560	Nitellopsis obtusa	Habitat Alteration	Anecdotal	N/A	causes critical habitat loss	36858
4561	Nitellopsis obtusa	Habitat Alteration	Anecdotal	N/A	Loss of access to critical fish spawning areas just as inland lake water temperatures become...	36861
4562	Nitellopsis obtusa	Habitat Alteration	Anecdotal	N/A	Nitellopsis causes loss of access to critical coarse woody habitat by growing over submerged snags...	36861
4565	Nitellopsis obtusa	Habitat Alteration	Anecdotal	N/A	Nitellopsis obtusa eliminates optimal growth habitat for fish fry	36861
4566	Nitellopsis obtusa	Habitat Alteration	Anecdotal	N/A	dense aquatic meadows of Nitellopsis obtusa eliminate or signficantly reduce vertical habitat...	36861
4567	Nitellopsis obtusa	Habitat Alteration	Anecdotal	N/A	Dense meadows of Starry Stonewort are capable of complete collapse in shallow areas when surface...	36861
4570	Nitellopsis obtusa	Habitat Alteration	Observational	Field	the normal underwater 'forest like' structure which provides refuge, shelter and nursery space for...	36862
4571	Nitellopsis obtusa	Habitat Alteration	Anecdotal	N/A	rock bass, smallmouth bass, largemouth bass, bluegill, and pumpkinseed avoid areas with starry...	36862
4572	Nitellopsis obtusa	Habitat Alteration	Anecdotal	N/A	fish such as walleye, muskellunge, and pickerel that hide within plant areas and rely on ambush...	36862
4573	Nitellopsis obtusa	Habitat Alteration	Anecdotal	N/A	starry stonewort may lead to increased cyanobacterial growth, and more potentially toxic blooms...	36862
7550	Nitellopsis obtusa	Habitat Alteration	Observational	Field	In Lake Majcz Wielki, Poland, zebra mussels settle at densities of 1000 per m² on...	17614

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Data Disclaimer: These data are preliminary or provisional and are subject to revision. They are being provided to meet the need for timely best science. The data have not received final approval by the U.S. Geological Survey (USGS) and are provided on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from the authorized or unauthorized use of the data.