Didymosphenia geminata
Didymosphenia geminata
(didymo)
Algae
Cryptogenic
Collection Info
Point Map
Species Profile
Animated Map
Impacts

12 results for Didymosphenia geminata (didymo)

Impact ID Scientific Name Impact Type Study Type Study Location Impact Description Reference
4815 Didymosphenia geminata Habitat Alteration Observational Field Where it becomes very dense in New Zealand, Didymosphenia geminata decreases the exchange... 37232
4824 Didymosphenia geminata Habitat Alteration Observational Field Benthic macroinvertebrate density, as well as the proportion of Chironomids (midges), increased... 37243
4881 Didymosphenia geminata Habitat Alteration Observational Field Didymosphenia geminata can form dense mats, covering substrates in rivers and lakes. 37327
4886 Didymosphenia geminata Habitat Alteration Observational Field Didymosphenia geminata creates a thick mat, covering all substrates in a waterbody. 37330
9742 Didymosphenia geminata Habitat Alteration Anecdotal N/A Nuisance blooms of Didymosphenia geminata form thick covers over sediment.... 30501
9743 Didymosphenia geminata Habitat Alteration Anecdotal N/A Extracellular stalks trap fine sediment changing the nature of substrate and have potential long... 30501
9745 Didymosphenia geminata Habitat Alteration Anecdotal N/A Didymosphenia geminata dominates stream surfaces by covering up to 100% of substrate with... 30501
9746 Didymosphenia geminata Habitat Alteration Observational Field In the Restigouche River basin, Didymosphenia geminata have altered the structure and... 30507
9747 Didymosphenia geminata Habitat Alteration Observational Field In South Dakota, decreased macroinvertebrate diversity. Combined percentage of Ephemeroptera... 43376
9748 Didymosphenia geminata Habitat Alteration Observational Field The presence of D. geminata was associated with greatly increased periphyton biomass (5-10... 30524
9749 Didymosphenia geminata Habitat Alteration Anecdotal N/A There are concerns that Didymo-related shifts in macro invertebrate compositions negatively affect... 43377
9750 Didymosphenia geminata Habitat Alteration Anecdotal N/A There are concerns that Didymo-related shifts in macro invertebrate compositions negatively affect... 43378

View all impact types for Didymosphenia geminata
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.

Disclaimer:

The data represented on this site vary in accuracy, scale, completeness, extent of coverage and origin. It is the user's responsibility to use these data consistent with their intended purpose and within stated limitations. We highly recommend reviewing metadata files prior to interpreting these data.

Citation information: U.S. Geological Survey. [2024]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [11/28/2024].

Contact us if you are using data from this site for a publication to make sure the data are being used appropriately and for potential co-authorship if warranted.

For general information and questions about the database, contact Wesley Daniel. For problems and technical issues, contact Matthew Neilson.