Occurrence of Salmincola siscowet (Copepoda: Lernaeopodidae) on lake trout (Salvelinus namaycush) and lake trout backcross (S. namaycush × S. fontinalis) in Lake Huron

1993 ◽  
Vol 71 (11) ◽  
pp. 2330-2333 ◽  
Author(s):  
David M. Anderson
Keyword(s):  
Lake Trout ◽  
Salvelinus Namaycush ◽  
Parasitic Copepod ◽  
Lake Huron ◽  
Clear Relationship ◽  
Sexually Mature

Examination of 1524 lake trout (Salvelinus namaycush) and 1254 lake trout backcross (S. namaycush × S. fontinalis) from 2 locations in Lake Huron revealed the presence of a parasitic copepod, Salmincola siscowet, previously undescribed in Lake Huron waters. The prevalence and intensity of S. siscowet on trout increased between 1990 and 1992. All copepods detected were sexually mature females. There was no clear relationship between copepod prevalence and host length.

In Situ Determination of the Annual Thermal Habitat Use by Lake Trout (Salvelinus namaycush) in Lake Huron

2003 ◽  
Vol 29 ◽  
pp. 347-361 ◽  
Author(s):  
Roger A. Bergstedt ◽  
Ray L. Argyle ◽  
James G. Seelye ◽  
Kim T. Scribner ◽  
Gary L. Curtis
Keyword(s):  
Habitat Use ◽  
Lake Trout ◽  
Salvelinus Namaycush ◽  
Lake Huron ◽  
Thermal Habitat

Identification of lake trout Salvelinus namaycush spawning habitat in northern Lake Huron using high-resolution satellite imagery

2016 ◽  
Vol 42 (1) ◽  
pp. 127-135 ◽  
Author(s):  
Amanda G. Grimm ◽  
Colin N. Brooks ◽  
Thomas R. Binder ◽  
Stephen C. Riley ◽  
Steven A. Farha ◽  
...  
Keyword(s):  
High Resolution ◽  
Satellite Imagery ◽  
Lake Trout ◽  
Salvelinus Namaycush ◽  
Lake Huron ◽  
Spawning Habitat ◽  
High Resolution Satellite Imagery

Progress Toward the Rehabilitation of Lake Trout (Salvelinus namaycush) in South Bay, Lake Huron

2008 ◽  
Vol 34 (2) ◽  
pp. 287-300 ◽  
Author(s):  
Yolanda E. Morbey ◽  
David M. Anderson ◽  
Bryan A. Henderson
Keyword(s):  
Lake Trout ◽  
Salvelinus Namaycush ◽  
Lake Huron

Dispelling common beliefs about angler opposition to lake trout (Salvelinus namaycush) rehabilitation efforts in Lake Huron

2014 ◽  
Vol 40 (2) ◽  
pp. 385-391 ◽  
Author(s):  
Len M. Hunt ◽  
David Gonder ◽  
Arunas Liskauskas
Keyword(s):  
Lake Trout ◽  
Salvelinus Namaycush ◽  
Lake Huron

Evidence of Widespread Natural Reproduction by Lake Trout Salvelinus namaycush in the Michigan Waters of Lake Huron

2007 ◽  
Vol 33 (4) ◽  
pp. 917-921 ◽  
Author(s):  
Stephen C. Riley ◽  
Ji X. He ◽  
James E. Johnson ◽  
Timothy P. O'Brien ◽  
Jeffrey S. Schaeffer
Keyword(s):  
Lake Trout ◽  
Salvelinus Namaycush ◽  
Lake Huron ◽  
Natural Reproduction

scholarly journals Fine-scale acoustic telemetry reveals unexpected lake trout, Salvelinus namaycush , spawning habitats in northern Lake Huron, North America

2017 ◽  
Vol 27 (2) ◽  
pp. 594-605 ◽  
Author(s):  
Thomas R. Binder ◽  
Steven A. Farha ◽  
Henry T. Thompson ◽  
Christopher M. Holbrook ◽  
Roger A. Bergstedt ◽  
...  
Keyword(s):  
North America ◽  
Acoustic Telemetry ◽  
Lake Trout ◽  
Salvelinus Namaycush ◽  
Lake Huron ◽  
Fine Scale ◽  
Spawning Habitats

Helminths in an Intensively Stocked Population of Lake Trout,Salvelinus namaycush,from Lake Huron

2000 ◽  
Vol 86 (3) ◽  
pp. 639-642 ◽  
Author(s):  
Patrick M. Muzzall ◽  
Charles A. Bowen
Keyword(s):  
Lake Trout ◽  
Salvelinus Namaycush ◽  
Lake Huron

Movement patterns and spatial segregation of two populations of lake trout Salvelinus namaycush in Lake Huron

2017 ◽  
Vol 43 (3) ◽  
pp. 108-118 ◽  
Author(s):  
Thomas R. Binder ◽  
J. Ellen Marsden ◽  
Stephen C. Riley ◽  
James E. Johnson ◽  
Nicholas S. Johnson ◽  
...  
Keyword(s):  
Lake Trout ◽  
Movement Patterns ◽  
Salvelinus Namaycush ◽  
Spatial Segregation ◽  
Lake Huron ◽  
Two Populations

New estimates of lethality of sea lamprey (Petromyzon marinus) attacks on lake trout (Salvelinus namaycush): implications for fisheries management

2008 ◽  
Vol 65 (3) ◽  
pp. 535-542 ◽  
Author(s):  
Charles P Madenjian ◽  
Brian D Chipman ◽  
J Ellen Marsden
Keyword(s):  
Fisheries Management ◽  
Lake Trout ◽  
Petromyzon Marinus ◽  
Sea Lamprey ◽  
Salvelinus Namaycush ◽  
Freshwater Ecosystems ◽  
Control Measures ◽  
Lake Huron ◽  
Lake Champlain ◽  
And Control

Sea lamprey (Petromyzon marinus) control in North America costs millions of dollars each year, and control measures are guided by assessment of lamprey-induced damage to fisheries. The favored prey of sea lamprey in freshwater ecosystems has been lake trout (Salvelinus namaycush). A key parameter in assessing sea lamprey damage, as well as managing lake trout fisheries, is the probability of an adult lake trout surviving a lamprey attack. The conventional value for this parameter has been 0.55, based on laboratory experiments. In contrast, based on catch curve analysis, mark–recapture techniques, and observed wounding rates, we estimated that adult lake trout in Lake Champlain have a 0.74 probability of surviving a lamprey attack. Although sea lamprey growth in Lake Champlain was lower than that observed in Lake Huron, application of an individual-based model to both lakes indicated that the probability of surviving an attack in Lake Champlain was only 1.1 times higher than that in Lake Huron. Thus, we estimated that lake trout survive a lamprey attack in Lake Huron with a probability of 0.66. Therefore, our results suggested that lethality of a sea lamprey attack on lake trout has been overestimated in previous model applications used in fisheries management.

Translocation of 2,3,7,8-Tetrachlorodibenzo-p-dioxin from Adult Female Lake Trout (Salvelinus namaycush) to Oocytes: Effects on Early Life Stage Development and Sac Fry Survival

1994 ◽  
Vol 51 (6) ◽  
pp. 1410-1419 ◽  
Author(s):  
Mary K. Walker ◽  
Philip M. Cook ◽  
Allan R. Batterman ◽  
Brian C. Butterworth ◽  
Christine Berini ◽  
...  
Keyword(s):  
Lake Trout ◽  
Life Stage ◽  
Early Life Stage ◽  
Salvelinus Namaycush ◽  
Mature Female ◽  
Wet Weight ◽  
Stage Development ◽  
Tetrachlorodibenzo P Dioxin ◽  
Life Stage Development ◽  
Sexually Mature

There were no signs of overt toxicity in sexually mature female lake trout (Salvelinus namaycush) exposed to either a control or a 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD)-containing diet for 11 wk prior to spawning. At spawning the maternally derived egg TCDD concentrations were 42 ± 4 and 43 ± 6% of the maternal skeletal muscle TCDD concentration on a lipid and wet weight basis, respectively. Egg TCDD concentrations of 233–387 pg TCDD/g egg (wet weight) resulted in nonviable oocytes, while concentrations of 50–152 pg/g resulted in a dose-related increase in sac fry mortality associated with yolk sac edema, craniofacial alterations, and arrested development, resembling blue-sac disease. The dose–response relationship for sac fry mortality associated with blue-sac disease was essentially identical to that observed when fertilized lake trout eggs were exposed to either waterborne or injected TCDD. The no and lowest observable adverse effect levels for sac fry mortality were 23 and 50 pg/g (maternal egg exposure), 34 and 40 pg/g (waterborne egg exposure), and 44 and 55 pg/g (egg injection). LD50s, based on egg TCDD concentration, were 58 (36–90), 69 (64–75), and 80 (68–91) pg/g (95% fiducial limits) following egg exposure via maternal, waterborne, or injection routes, respectively.

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