Competition between larval lake herring (Coregonus artedi) and lake whitefish (Coregonus clupeaformis) for zooplankton

1998 ◽  
Vol 55 (5) ◽  
pp. 1140-1148 ◽  
Author(s):  
Bruce M Davis ◽  
Thomas N Todd
Keyword(s):  
Great Lakes ◽  
Single Species ◽  
Coregonus Clupeaformis ◽  
Lake Whitefish ◽  
Mixed Species ◽  
Initial Size ◽  
Coregonus Artedi ◽  
Mesocosm Experiments ◽  
Negative Effect ◽  
Lake Herring

Diet and growth of larval lake herring (Coregonus artedi) and lake whitefish (Coregonus clupeaformis) were compared in mesocosm experiments in a small mesotrophic lake in southeastern Michigan. Fish were sampled from single-species and mixed assemblages in 2-m3 cages for 8 weeks during April and May. Both species initially ate mostly cyclopoid copepodites and small cladocerans (Bosmina spp.). Schoener's index of diet overlap showed considerable overlap (70-90%). Lake whitefish ate Daphnia spp. and adult copepods about 2 weeks earlier than did lake herring, perhaps related to their larger mean mouth gape. Lake whitefish were consistently larger than lake herring until the eighth week, especially in the sympatric treatments. Lake whitefish appeared to have a negative effect on the growth of lake herring, as lake herring in mixed-species treatments were smaller and weighed less than lake herring reared in single-species treatments. The diet similarities of lake whitefish and lake herring larvae could make them competitors for food in the Great Lakes. The greater initial size of lake whitefish could allow them to eat larger prey earlier and thereby limit availability of these prey to lake herring at a crucial period of development.

Status and Distribution of Cisco (Coregonus artedi) and Lake Whitefish (Coregonus clupeaformis) in Inland Lakes of Wisconsin

2020 ◽  
Vol 27 (3) ◽  
pp. 469
Author(s):  
Kathryn M. Renik ◽  
Martin J. Jennings ◽  
Jeffrey M. Kampa ◽  
John Lyons ◽  
Timothy P. Parks ◽  
...  
Keyword(s):  
Coregonus Clupeaformis ◽  
Lake Whitefish ◽  
Inland Lakes ◽  
Coregonus Artedi

Reproductive life-history strategies in lake whitefish (Coregonus clupeaformis) from the Laurentian Great Lakes

2014 ◽  
Vol 71 (8) ◽  
pp. 1256-1269 ◽  
Author(s):  
Andrew M. Muir ◽  
Michael T. Arts ◽  
Marten A. Koops ◽  
Timothy B. Johnson ◽  
Charles C. Krueger ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Great Lakes ◽  
Egg Size ◽  
Laurentian Great Lakes ◽  
Life History Strategies ◽  
Nutrient Allocation ◽  
Coregonus Clupeaformis ◽  
Lake Whitefish ◽  
Maternal Condition ◽  
Trade Offs

Recent food-web changes in the Laurentian Great Lakes are affecting energy and nutrient allocation to lake whitefish (Coregonus clupeaformis) with potential downstream effects on egg condition and recruitment. We tested whether egg condition was conserved or varied with maternal condition in eight stocks from Lakes Erie, Michigan, and Superior. Egg condition was conserved across stocks based on (i) a lack of correlation between females and eggs for total lipid, DHA, and other essential fatty acids; (ii) higher levels of energy and long-chain polyunsaturated fatty acids (LC-PUFA) in eggs compared with females; and (iii) no among-stock differences for those same variables in eggs. Females from northern Lake Michigan generally made the greatest trade-offs between egg size and fecundity. Highly fecund females provisioned less lipid, but more n-3 LC-PUFA to their eggs. A lack of stock-level patterns in energy and nutrient allocation suggests that trade-offs occur at the level of individual females and that females in poor condition make greater trade-offs among egg size and fecundity, total lipids, and n-3 LC-PUFA than females in good condition.

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.

scholarly journals Asynchrony in the inter-annual recruitment of lake whitefish Coregonus clupeaformis in the Great Lakes region

2017 ◽  
Vol 43 (2) ◽  
pp. 359-369 ◽  
Author(s):  
Mitchell T. Zischke ◽  
David B. Bunnell ◽  
Cary D. Troy ◽  
Eric K. Berglund ◽  
David C. Caroffino ◽  
...  
Keyword(s):  
Great Lakes ◽  
Great Lakes Region ◽  
Coregonus Clupeaformis ◽  
Lake Whitefish

Temperature Tolerance of Young-of-the-Year Lake Whitefish, Coregonus clupeaformis

1976 ◽  
Vol 33 (1) ◽  
pp. 177-180 ◽  
Author(s):  
Thomas A. Edsall ◽  
Donald V. Rottiers
Keyword(s):  
Temperature Tolerance ◽  
Coregonus Clupeaformis ◽  
Lake Whitefish ◽  
Lethal Temperature ◽  
Young Of The Year ◽  
Coregonus Artedii ◽  
Coregonus Hoyi ◽  
Lake Herring

The ultimate upper lethal temperature of young-of-the-year lake whitefish, Coregonus clupeaformis, was 26.65 C; this value is closely similar to that reported for yearling bloaters, Coregonus hoyi (26.75 C) and young-of-the-year lake herring, Coregonus artedii (26.0 C).

Revised karyotypes and chromosome banding of coregonid fishes from the Laurentian Great Lakes

1996 ◽  
Vol 74 (2) ◽  
pp. 323-329 ◽  
Author(s):  
Ruth B. Phillips ◽  
Kent M. Reed ◽  
Petr Ráb
Keyword(s):  
Great Lakes ◽  
Chromosome Pair ◽  
Acrocentric Chromosome ◽  
Chromosome Morphology ◽  
Coregonus Clupeaformis ◽  
Lake Whitefish ◽  
Chromosome Fusion ◽  
C Banding ◽  
The Difference ◽  
Submetacentric Pair

Karyotypes of lake whitefish, Coregonus clupeaformis, and various Great Lakes cisco species, lake herring or cisco, C. artedi, bloater, C. hoyi, blackfin cisco, C. nigripinnis, and shortjaw cisco, C. zenithicus, were analyzed using Giemsa staining, C-banding, silver staining, and Chromomycin A3 fluorescence. Coregonus clupeaformis had a karyotype (2n = 80, NF = 98) indistinguishable from that described for C. laveretus from Europe, with one pair of nuclear organizer regions (NORs) on the short arms of a small acrocentric chromosome pair and a second NOR on the short arms of another acrocentric chromosome pair. This species displayed a size polymorphism involving the heterochromatic short arm of the largest metacentric–submetacentric pair. All four cisco species had similar karyotypes (2n = 80, NF = 98), with the exception of some C. artedi from Lake Superior, which were heterozygous for a chromosome fusion involving the NOR chromosomes (2n = 79). One NOR was located pericentromerically on the long arm of the second largest acrocentric chromosome and a second NOR on the short arms of another acrocentric chromosome pair in several individuals. C-banding revealed that the difference in chromosome morphology between lake whitefish and the ciscoes probably resulted from amplification of heterochromatin on the short arms of one pair of large submetacentric–metacentric chromosomes.

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