Feeding by Alewives (Alosa pseudoharengus) on Larval Lake Whitefish (Coregonus clupeaformis) in the Laboratory

1974 ◽  
Vol 31 (2) ◽  
pp. 229-230 ◽  
Author(s):  
Walter J. Hoagman
Keyword(s):  
Standard Deviation ◽  
Lake Michigan ◽  
Average Length ◽  
Alosa Pseudoharengus ◽  
Coregonus Clupeaformis ◽  
Lake Whitefish

Adult alewives (Alosa pseudoharengus) from Lake Michigan readily ate larval lake white-fish (Coregonus clupeaformis) of 16.3 mm (standard deviation 1.4 mm) average length in the laboratory. They ignored the larvae when the latter had grown to 19.5 mm (SD = 1.6 mm) and 24.9 mm (SD = 3.2 mm) average length.

scholarly journals Dynamics of the Lake Michigan food web, 1970–2000

2002 ◽  
Vol 59 (4) ◽  
pp. 736-753 ◽  
Author(s):  
Charles P Madenjian ◽  
Gary L Fahnenstiel ◽  
Thomas H Johengen ◽  
Thomas F Nalepa ◽  
Henry A Vanderploeg ◽  
...  
Keyword(s):  
Food Web ◽  
Zebra Mussel ◽  
Dreissena Polymorpha ◽  
Yellow Perch ◽  
Lake Michigan ◽  
Petromyzon Marinus ◽  
Perca Flavescens ◽  
Sea Lamprey ◽  
Alosa Pseudoharengus ◽  
Coregonus Clupeaformis

Herein, we document changes in the Lake Michigan food web between 1970 and 2000 and identify the factors responsible for these changes. Control of sea lamprey (Petromyzon marinus) and alewife (Alosa pseudoharengus) populations in Lake Michigan, beginning in the 1950s and 1960s, had profound effects on the food web. Recoveries of lake whitefish (Coregonus clupeaformis) and burbot (Lota lota) populations, as well as the buildup of salmonine populations, were attributable, at least in part, to sea lamprey control. Based on our analyses, predation by salmonines was primarily responsible for the reduction in alewife abundance during the 1970s and early 1980s. In turn, the decrease in alewife abundance likely contributed to recoveries of deepwater sculpin (Myoxocephalus thompsoni), yellow perch (Perca flavescens), and burbot populations during the 1970s and 1980s. Decrease in the abundance of all three dominant benthic macroinvertebrate groups, including Diporeia, oligochaetes, and sphaeriids, during the 1980s in nearshore waters ([Formula: see text]50 m deep) of Lake Michigan, was attributable to a decrease in primary production linked to a decline in phosphorus loadings. Continued decrease in Diporeia abundance during the 1990s was associated with the zebra mussel (Dreissena polymorpha) invasion, but specific mechanisms for zebra mussels affecting Diporeia abundance remain unidentified.

Spatial and temporal variation of maturation schedules of lake whitefish (Coregonus clupeaformis) in the Great Lakes

2008 ◽  
Vol 65 (10) ◽  
pp. 2157-2169 ◽  
Author(s):  
Hui-Yu Wang ◽  
Tomas O. Höök ◽  
Mark P. Ebener ◽  
Lloyd C. Mohr ◽  
Philip J. Schneeberger
Keyword(s):  
Great Lakes ◽  
Lake Michigan ◽  
Spatial And Temporal Variation ◽  
Ecosystem Structure ◽  
Coregonus Clupeaformis ◽  
Lake Whitefish ◽  
Adaptive Responses ◽  
Fish Stocks ◽  
Ecosystem Changes ◽  
Plastic Responses

Fish maturation schedules vary greatly among systems and over time, reflecting both plastic and adaptive responses to ecosystem structure, physical habitats, and mortality (natural and fishing). We examined maturation schedules of commercially exploited lake whitefish ( Coregonus clupeaformis ) in the Laurentian Great Lakes (Lakes Michigan, Huron, and Superior) by estimating ages and lengths at 50% maturity, age-specific maturity ogives (age-specific probability of being mature), and probabilistic maturation reaction norms (PMRNs; a metric that accounts for effects of growth and mortality). Collectively, these estimates indicated variation in maturation schedules between sexes (i.e., males tend to mature at younger ages and shorter lengths than females) and among systems (midpoint estimates of PMRNs were smallest for Lake Michigan fish, intermediate for fish in the main basin of Lake Huron, and largest for fish in Lake Huron’s Georgian Bay and Lake Superior). Temporally, recent increases in age at 50% maturity in Lakes Huron and Michigan may primarily reflect plastic responses to decreased growth rates associated with ecosystem changes (e.g., declines of the native amphipod, Diporeia spp.). As plastic and adaptive changes in maturation schedules of fish stocks may occur simultaneously and require different management considerations, we recommend the concomitant analysis of multiple maturation indices.

Assessment of the United States Lake Whitefish (Coregonus clupeaformis) Fisheries of Lake Superior, Lake Michigan, and Lake Huron

1976 ◽  
Vol 33 (4) ◽  
pp. 747-759 ◽  
Author(s):  
A. L. Jensen
Keyword(s):  
Lake Michigan ◽  
Lake Superior ◽  
The United States ◽  
Sea Lamprey ◽  
Maximum Sustainable Yield ◽  
Lake Huron ◽  
Production Model ◽  
Coregonus Clupeaformis ◽  
Lake Whitefish ◽  
Surplus Production Model

The logistic surplus production model is applied to lake whitefish (Coregonus clupeaformis) yield and effort data from Lake Superior, Lake Michigan, and Lake Huron. The fitted models indicate that the whitefish populations in most areas of the lakes have been overexploited, and that in these areas yield was below the maximum sustainable yield before sea lamprey (Petromyzon marinus) predation took its toll. In some areas of Lake Superior the whitefish populations are not overexploited. The sea lamprey is the apparent cause of the drastic decrease in the whitefish population that occurred in northern Lake Michigan during the 1950’s.

Population or Stock Structure of Lake Whitefish, Coregonus clupeaformis, in Northern Lake Michigan as Assessed by Isozyme Electrophoresis

1980 ◽  
Vol 37 (5) ◽  
pp. 783-793 ◽  
Author(s):  
Mark Imhof ◽  
Robb Leary ◽  
Henry E. Booke
Keyword(s):  
Cluster Analysis ◽  
Lake Michigan ◽  
Electrophoretic Analysis ◽  
Clinal Variation ◽  
Stock Structure ◽  
Coregonus Clupeaformis ◽  
Lake Whitefish ◽  
Isozyme Electrophoresis ◽  
Spatial Overlap ◽  
Temporal And Spatial

Electrophoretic analysis of three polymorphic isozymes (lactate, malate, and glycerol-3-phosphate dehydrogenases) from lake whitefish, Coregonus clupeaformis, indicated that at least four populations exist in northern Lake Michigan. Cluster analysis of Nei genetic identity indices revealed much temporal and spatial overlap among population ranges. The overlap did not appear complete since the LDH A allele exhibited clinal variation with increasing frequency from south to north. Because population ranges overlap spatially and temporally, commercial catches are likely to contain fish from more than one population.Key words: population (stock), isozyme electrophoresis, lake whitefish, Lake Michigan

Genetic structure of lake whitefish (Coregonus clupeaformis) in Lake Michigan

2009 ◽  
Vol 66 (3) ◽  
pp. 382-393 ◽  
Author(s):  
Justin A. VanDeHey ◽  
Brian L. Sloss ◽  
Paul J. Peeters ◽  
Trent M. Sutton
Keyword(s):  
Lake Michigan ◽  
Isolation By Distance ◽  
Genetic Relationships ◽  
Coregonus Clupeaformis ◽  
Lake Whitefish ◽  
Genetic Stock ◽  
Data Set ◽  
Genetic Stock Identification ◽  
Genetic Groups ◽  
Mixed Stock

Genetic relationships among lake whitefish ( Coregonus clupeaformis ) spawning aggregates in Lake Michigan were assessed and used to predict a stock or management unit (MU) model for the resource. We hypothesized that distinct spawning aggregates represented potential MUs and that differences at molecular markers underlie population differentiation. Genetic stock identification using 11 microsatellite loci indicated the presence of six genetic MUs. Resolved MUs corresponded to geographically proximate spawning aggregates clustering into genetic groups. Within MUs, analyses suggested that all but one delineated MU was a stable grouping (i.e., no between-population differences), with the exception being the Hog Island – Traverse Bay grouping. Elk Rapids was the most genetically divergent population within Lake Michigan. However, low Fst values suggested that moderate to high levels of gene flow occur or have occurred in the past between MUs. Significant tests of isolation by distance and low pairwise Fst values potentially led to conflicting results between traditional analyses and a Bayesian approach. This data set could provide baseline data from which a comprehensive mixed-stock analysis could be performed, allowing for more efficient and effective management of this economically and socially important resource.

Compensatory reserve of lake whitefish (Coregonus clupeaformis) in Michigan waters of Lake Michigan

2021 ◽  
Vol 66 ◽  
pp. 133-145
Author(s):  
So-Jung Youn ◽  
William W. Taylor ◽  
Daniel B. Hayes ◽  
C. Paola Ferreri
Keyword(s):  
Lake Michigan ◽  
Coregonus Clupeaformis ◽  
Lake Whitefish ◽  
Compensatory Reserve

Multi‐frequency measures and models of Lake whitefish (Coregonus clupeaformis) backscatter from Lake Michigan

1999 ◽  
Vol 105 (2) ◽  
pp. 995-995
Author(s):  
J. Michael Jech ◽  
John K. Horne ◽  
Lee A. Powell ◽  
James H. Grandt
Keyword(s):  
Lake Michigan ◽  
Coregonus Clupeaformis ◽  
Lake Whitefish

Biotic and Abiotic Determinants of Lake Whitefish (Coregonus ciupeaformis) Recruitment in Northeastern Lake Michigan

1987 ◽  
Vol 44 (S2) ◽  
pp. s313-s323 ◽  
Author(s):  
William W. Taylor ◽  
Martin A. Smale ◽  
Mark H. Freeberg
Keyword(s):  
Lake Michigan ◽  
Coregonus Clupeaformis ◽  
Lake Whitefish ◽  
Cold Winter ◽  
Egg Survival ◽  
Spawning Stock ◽  
Stock Recruitment ◽  
Spring Temperatures ◽  
Reproductive Rates ◽  
Spawning Biomass

Comparisons of lifetime average per capita reproductive rates (R0) between stocks of lake whitefish (Coregonus clupeaformis) in Lake Michigan found higher estimates of R0 for rapidly growing exploited stocks than for a commercially unexploited stock. Earlier maturation was the prime cause of this increase. Exploited stocks, however, were dependent on fewer age-classes for reproduction and had a greater potential for instability due to annual variation in recruitment. Overwinter whitefish egg survival in Grand Traverse Bay was nearly fourfold higher during a cold winter with prevalent ice than during the preceding mild, ice-free winter. However, the higher densities of larvae produced during the cold winter experienced greater mortality, with starvation the likely cause. Factors found to influence a stock–recruitment relationship developed for year-classes from 1958 to 1980 included spawning biomass, winter severity (ice-cover), and spring temperatures. Periods of abnormally high and low whitefish catch corresponded to periods in which cold or warm winters were more frequent, respectively. Harvest strategies that dampen naturally caused fluctuations in the spawning stock are recommended.

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