Compsopogon cf. coeruleus, a benthic red alga (Rhodophyta) new to the Laurentian Great Lakes

1991 ◽  
Vol 69 (6) ◽  
pp. 1237-1240 ◽  
Author(s):  
Bruce A. Manny ◽  
Thomas A. Edsall ◽  
Daniel E. Wujek
Keyword(s):  
Great Lakes ◽  
Red Algae ◽  
Red Alga ◽  
Lake Huron ◽  
Laurentian Great Lakes ◽  
Winter Temperatures ◽  
Permanent Member ◽  
Freshwater Red Algae ◽  
First Time ◽  
Offshore Reef

We found Compsopogon cf. coeruleus for the first time in the Laurentian Great Lakes, growing on limestone rocks at a depth of 21 m on Six Fathom Bank in central Lake Huron. It is the first freshwater red alga to be found in the Great Lakes and the only red alga ever found on an offshore reef in the Great Lakes. However, because this alga usually inhabits water 10–28 °C and has not survived freezing winter temperatures elsewhere, it may not be a permanent member of the flora. Key words: benthic, Compsopogon, freshwater red algae, Great Lakes, Lake Huron.

scholarly journals Hildenbrandia rivularis (Rhodophyta) in central Poland

2011 ◽  
Vol 77 (1) ◽  
pp. 41-47 ◽  
Author(s):  
Joanna Żelazna-Wieczorek ◽  
Maciej Ziułkiewicz
Keyword(s):  
Red Algae ◽  
Habitat Conditions ◽  
Protected Species ◽  
Central Poland ◽  
Wide Range ◽  
Freshwater Red Algae ◽  
First Time

Freshwater red algae <em>Hildenbrandia rivularis</em> has been noted for the first time in central Poland near the Lodz agglomeration. Until now, this alga was recorded only in mountain and Polish Lowland areas. The wide range of habitat conditions influencing the occurrence for this protected species has been determined in the spring niche. The possible threat to habitat where <em>H. rivularis</em> occurs, is connected with construction and exploitation of the A2 highway.

New records of Ergasilus (Copepoda: Ergasilidae) in the Laurentian Great Lakes, including a lakewide review of records and host associations

1994 ◽  
Vol 72 (6) ◽  
pp. 1002-1009 ◽  
Author(s):  
Patrick L. Hudson ◽  
Charles A. Bowen II ◽  
Ralph M. Stedman
Keyword(s):  
Great Lakes ◽  
Gasterosteus Aculeatus ◽  
Lake Trout ◽  
Micropterus Salmoides ◽  
Lake Huron ◽  
Pungitius Pungitius ◽  
Mean Intensity ◽  
Ninespine Stickleback ◽  
Host Parasite ◽  
First Time

Ergasilus nerkae was found infecting ninespine stickleback (Pungitius pungitius) in lakes Huron, Michigan, and Superior and threespine stickleback (Gasterosteus aculeatus) and round whitefish (Prosopium cylindraceum) in Lake Huron. Based upon the literature and study of archived material, we propose that E. nerkae is enzootic to the Great Lakes and that ninespine stickleback are a preferred host in Lake Huron. Prevalence of E. nerkae on ninespine stickleback increased from 17% in June to 68% in September, but mean intensity remained light. Prevalence and mean intensity increased with host length. Ergasilus luciopercarum is also reported on lake trout (Salvelinus namaycush) and largemouth bass (Micropterus salmoides) for the first time. Host–parasite records of Ergasilus spp. in North America are reviewed, biology and taxonomy are summarized, and a checklist of Great Lakes host–parasite–locality records is provided. At present, eight species of Ergasilus are known to infect 42 Great Lakes fish species.

Distribution, seasonality and putative origin of the non-native red alga Bangia atropurpurea (Bangiales, Rhodophyta) in the Laurentian Great Lakes

2014 ◽  
Vol 40 (1) ◽  
pp. 27-34 ◽  
Author(s):  
Troina B. Shea ◽  
Robert G. Sheath ◽  
Aline Chhun ◽  
Morgan L. Vis ◽  
Wayne B. Chiasson ◽  
...  
Keyword(s):  
Great Lakes ◽  
Red Alga ◽  
Laurentian Great Lakes ◽  
Putative Origin ◽  
Bangia Atropurpurea

PARASITE FAUNA OF THE SEA LAMPREY (PETROMYZON MARINUS VON LINNÉ) IN THE GREAT LAKES REGION

1967 ◽  
Vol 45 (6) ◽  
pp. 1083-1092 ◽  
Author(s):  
K. A. Wilson ◽  
K. Ronald
Keyword(s):  
Great Lakes ◽  
Microscopic Examination ◽  
Parasite Species ◽  
Petromyzon Marinus ◽  
Sea Lamprey ◽  
Parasite Fauna ◽  
Lake Huron ◽  
Great Lakes Region ◽  
Sea Lampreys ◽  
First Time

Seven hundred and fifteen adult sea lampreys (Petromyzon marinus von Linné) from four streams tributary to Lake Huron and five offshore samples from the Manitoulin Island – Bruce Peninsula area, were examined for parasites.Dissection and microscopic examination revealed the presence of eight parasite species. Cucullanus stelmioides Vessichelli, 1910 is recorded for the first time both as a parasite of P. marinus and from North American waters. Ergasilus caeruleus Wilson, 1911, Anodontoides ferussacianus Lea. 1834, Diplostomum huronense (La Rue 1927), Plagioporus lepomis Dobrovolny, 1939 are all recorded for the first time as parasites of P. marinus. Echinorhynchus salmonis Müller, 1784, Triaenophorus crassus Forel, 1868, and Proteocephalus sp. are redescribed as parasites of the sea lamprey.

scholarly journals How Many Ciscoes are Needed for Stocking in the Laurentian Great Lakes?

2021 ◽  
Author(s):  
Benjamin Rook ◽  
Michael J. Hansen ◽  
Charles R. Bronte
Keyword(s):  
Great Lakes ◽  
Lake Michigan ◽  
Lake Superior ◽  
Production Capacity ◽  
Lake Huron ◽  
Laurentian Great Lakes ◽  
Saginaw Bay ◽  
Thunder Bay ◽  
Western Lake ◽  
Coregonus Artedi

Historically, Cisco Coregonus artedi and deepwater ciscoes Coregonus spp. were the most abundant and ecologically important fish species in the Laurentian Great Lakes, but anthropogenic influences caused nearly all populations to collapse by the 1970s. Fishery managers have begun exploring the feasibility of restoring populations throughout the basin, but questions regarding hatchery propagation and stocking remain. We used historical and contemporary stock-recruit parameters previously estimated for Ciscoes in Wisconsin waters of Lake Superior, with estimates of age-1 Cisco rearing habitat (broadly defined as total ha ≤ 80 m depth) and natural mortality, to estimate how many fry (5.5 months post-hatch), fall fingerling (7.5 months post-hatch), and age-1 (at least 12 months post-hatch) hatchery-reared Ciscoes are needed for stocking in the Great Lakes to mimic recruitment rates in Lake Superior, a lake that has undergone some recovery. Estimated stocking densities suggested that basin-wide stocking would require at least 0.641-billion fry, 0.469-billion fall fingerlings, or 0.343-billion age-1 fish for a simultaneous restoration effort targeting historically important Cisco spawning and rearing areas in Lakes Huron, Michigan, Erie, Ontario, and Saint Clair. Numbers required for basin-wide stocking were considerably greater than current or planned coregonine production capacity, thus simultaneous stocking in the Great Lakes is likely not feasible. Provided current habitat conditions do not preclude Cisco restoration, managers could maximize the effectiveness of available production capacity by concentrating stocking efforts in historically important spawning and rearing areas, similar to the current stocking effort in Saginaw Bay, Lake Huron. Other historically important Cisco spawning and rearing areas within each lake (listed in no particular order) include: (1) Thunder Bay in Lake Huron, (2) Green Bay in Lake Michigan, (3) the islands near Sandusky, Ohio, in western Lake Erie, and (4) the area near Hamilton, Ontario, and Bay of Quinte in Lake Ontario. Our study focused entirely on Ciscoes but may provide a framework for describing future stocking needs for deepwater ciscoes.

Catalogue of marine and freshwater red algae (Rhodophyta) of New South Wales, including Lord Howe Island, south-western Pacific

1993 ◽  
Vol 6 (1) ◽  
pp. 1 ◽  
Author(s):  
AJK Millar ◽  
GT Kraft
Keyword(s):  
Red Algae ◽  
New South ◽  
New South Wales ◽  
New Combination ◽  
Lord Howe Island ◽  
South Wales ◽  
The Pacific ◽  
The Pacific Ocean ◽  
Freshwater Red Algae ◽  
First Time

All published, and many unpublished, records of marine and freshwater red algae from the New South Wales mainland and Lord Howe Island are brought together for the first time. Of the 381 species listed (in 14 orders, 41 families and 174 genera), some 22% have New South Wales type localities (58 from the mainland and 24 from Lord Howe Island) and the remainder are either typically southern Australian, Queensland, or much more widely distributed. Twenty-five percent (100) of the species and 20% (35) of the genera are newly recorded for the New South Wales coast, one genus (Callithamniella) is new to the Pacific Ocean, and two (Ditria and Titanophora) are newly recorded for Australia. The new combination Gloiocladia minutula is also proposed. All nomenclature is updated and relevant synonyms and misapplied names are included.

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