Hymenomonas roseola
Stein, 1878
Common Name:
A coccolithophorid
Synonyms and Other Names:
Pontosphaera stagnicola, Hymenomonas stagnicola
Identification:
Coccolithophorids in general display cell walls made of organic scales that are stuck together. In this species, coccoliths, or distal scales, are oval to round, bilaterally symmetric, and can be calcified or uncalcified, while base-plates, the organic matrix, and rimless scales are uncalcified. Coccolithophorids typically have a diploid generation with cells that display small coccoliths known as tremaliths and a haploid generation with cells that display two types of scales. In motile cells there is frequently a bulbous and squat haptonema that is vestigial, consisting of reduced scales at the flagellar end (Billard and Inouye 2004, Manton and Peterfi 1969). In Great Lakes specimens, cells are around 10 by 13.5 μm (Stoermer and Sicko-Goad 1977), although British specimens have been known to reach 30 μm across (John et al. 2002).
Size:
<30 microns
Native Range:
Hymenomonas roseola is native to Eurasia (Manton and Peterfi 1969, Mills et al. 1993).
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This map only depicts Great Lakes introductions.
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Great Lakes Nonindigenous Occurrences:
Hymenomonas roseola was first recorded in Lake Huron in 1975 (Mills et al. 1993, Stoermer and Sicko-Goad 1977). There was also a rare occurrence of H. roseola documented in the Sciotio River, Ohio (Lackey 1939).
Table 1. Great Lakes region nonindigenous occurrences, the earliest and latest observations in each state/province, and the tally and names of HUCs with observations†. Names and dates are hyperlinked to their relevant specimen records. The list of references for all nonindigenous occurrences of Hymenomonas roseola are found here.
Table last updated 4/19/2024
† Populations may not be currently present.
Ecology:
Most coccolithophorids are marine species. Of the three species in the genus Hymenomonas, two are marine, while H. roseola, primarily a freshwater species, likely has a marine ancestry. The two marine species in this genus reproduce by alternation of generation of heteromorphic organisms; H. roseola very likely reproduces in the same way. The alternation occurs between diploid cells and haploid, often benthic, cells (Fresnel 1994, Manton and Peterfi 1969).
Hymenomonas roseola is known to occur in highly eutrophic waters. It can reach especially high density in ponds, small lakes, and polluted lentic river ways. It is also known to occur in littoral zones of large lakes, slightly brackish estuaries, and very occasionally in open waters of large lakes. The record from Saginaw Bay, Lake Huron occurred in highly eutrophic conditions resulting from industrial and agricultural inputs (Stoermer and Sicko-Goad 1977).
Means of Introduction:
Hymenomonas roseola could have been introduced from Europe in ballast water of ships arriving in Lake Huron or from Ohio to Lake Huron through another mechanism (Mills et al. 1993).
Status:
The last known record of this species is from 1975. The present status of the population is unknown.
Great Lakes Impacts:
Summary of species impacts derived from literature review. Click on an icon to find out more...
Current research on the environmental impact of Hymenomonas roseola in the Great Lakes is inadequate to support proper assessment.
Potential:
Hymenomonas roseola can reach high abundances in ponds, small lakes, and the backwaters of polluted rivers, particularly in eutrophic conditions. Hymenomonas roseola is unlikely to have similar abundances in large lakes, so it is unclear if it will have similar negative impacts in the Great Lakes (Stoermer and Sicko-Goad 1977). In instances of high abundance, the impact of H. roseola on predator-prey relationships is unknown. The impact on predator-prey relationships is less likely in the Great Lakes because H. roseola is known to occur primarily in the littoral region of larger lakes and does not reach high abundances in large bodies of water (Stoermer and Sicko-Goad 1977).
Hymenomonas roseola thrives in eutrophic conditions, exacerbating problems associated with nutrient pollution. The presence of H. roseola is an effect of eutrophication, however, and not a cause.
The only species of the genus Hymenomonas in the Great Lakes is H. roseola, and there is only one other species of its order found in the Great Lakes, making hybridization unlikely.
There is little or no evidence to support that Hymenomonas roseola has significant socio-economic impacts in the Great Lakes.
There is little or no evidence to support that Hymenomonas roseola has significant beneficial effects in the Great Lakes.
Management:
Regulations (pertaining to the Great Lakes region)
There are no known regulations for this species.
Note: Check federal, state/provincial, and local regulations for the most up-to-date information.
Control
Biological
There are no known biological control methods for this species.
Physical
There are no known physical control methods for this species.
Chemical
There are no known chemical control methods for this species.
Note: Check state/provincial and local regulations for the most up-to-date information regarding permits for control methods. Follow all label instructions.
Remarks:
Hymenomonas roseola has also been recorded in North America around the Woods Hole area in Massachusetts (Lackey 1936) and in Chesapeake Bay (Marshall 1980).
References
(click for full reference list)
Author:
Kipp, R.M., M. McCarthy, and A. Fusaro
Contributing Agencies:
Revision Date:
9/12/2019
Citation for this information:
Kipp, R.M., M. McCarthy, and A. Fusaro, 2024, Hymenomonas roseola Stein, 1878: U.S. Geological Survey, Nonindigenous Aquatic Species Database, Gainesville, FL, and NOAA Great Lakes Aquatic Nonindigenous Species Information System, Ann Arbor, MI, https://nas.er.usgs.gov/queries/greatlakes/FactSheet.aspx?Species_ID=1696&Potential=N&Type=0&HUCNumber=DHuron, Revision Date: 9/12/2019, Access Date: 4/19/2024
This information is preliminary or provisional and is subject to revision. It is being provided to meet the need for timely best science. The information has not received final approval by the U.S. Geological Survey (USGS) and is 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 information.