Genetic Variation and Postglacial Dispersal of Populations of Northern Pike (Esox lucius) in North America

1987 ◽  
Vol 44 (3) ◽  
pp. 556-561 ◽  
Author(s):  
James E. Seeb ◽  
Lisa W. Seeb ◽  
David W. Oates ◽  
Fred M. Utter

We studied the genetic relationships and postglacial dispersal of northern pike (Esox lucius) populations in North America using allozyme data. Allelic products of up to 65 protein coding loci were examined in eight populations: five from drainages in western Canada, flowing into Hudson Bay and the Beaufort Sea; two from the Missouri River drainage, flowing into the Mississippi River; and one from the upper Mississippi River drainage, flowing into the Gulf of Mexico. Only two polymorphic loci were identified, Est-1 and Ck-1, and the average observed heterozygosity was only 0.001, much lower than that observed in most teleosts. All of the populations from the drainages in western Canada and the Missouri River were genetically identical. The Mississippi River population was unique, expressing Ck-1 (140), an allele nearly absent in all other populations, at a frequency of 0.99. Our data suggest that the Missouri River drainage, during the period when it was isolated from the Mississippi River, was the southern refugium from which northern pike radiated during deglaciation.

1970 ◽  
Vol 7 (4) ◽  
pp. 1130-1138 ◽  
Author(s):  
E. J. Crossman ◽  
C. R. Harington

Two fish dentary fragments from Late Pleistocene deposits in the Old Crow area, Yukon Territory are referable to the northern pike (Esox lucius). One tooth fragment from the last interglacial (Sangamon) deposits in the Don River Valley, Toronto, Ontario, is identified as Esox sp. The Yukon dentaries are the first fossils definitely attributable to Esox lucius in North America, and these records are the first for the suborder Esocoidei in Canada.


1984 ◽  
Vol 62 (4) ◽  
pp. 685-694 ◽  
Author(s):  
John D. Smith

Raphidascaris acus (Bloch, 1772) is redescribed from specimens from northern pike (Esox lucius) in Ontario. A reduced right excretory canal and a cuticular elevation in the ventral interlabial region are present. Hysterothylacium cayugensis Wigdor, 1918, Ascaris lucii Pearse, 1924, R. laurentianus Richardson, 1937, and R. alius Lyster, 1940 become junior synonyms of R. acus. The latter species, reported from a variety of fishes in Ontario and Quebec, is considered the only valid member of the genus in freshwater in North America and thus is distributed throughout the Holarctic. Four other species are considered valid: R. biwakoensis Fujita, 1928 (= R. gigi Fujita, 1928; = R. plecoglossi Fujita, 1928) from freshwater in Japan, and R. lutiani Olsen, 1952, R. chirocentri Yamaguti, 1935. and R. vicentei Santos, 1970 (= R. atlanticus Rodrigues, 1974; = R. yamagutii Vicente &Santos, 1974; = R. camura Deardorff &Overstreet, 1981) from marine fishes. The latter two species are similar if not identical and are broadly distributed in inshore subtropical oceans. The following are species inquirendae: R. adelinae (Condorelli-Francaviglia, 1898), R. anchoviellae Chandler, 1935, R. lophii (Wu, 1949), R. panijii Khan &Yassen, 1969, and R. synodi Paruchin, 1973. The broad host and geographic distributions of Raphidascaris spp. may indicate the genus is relatively old. The systematics of the Ascaridoidea is currently being revised. Reviews of other anisakid genera are necessary before relationships among Raphidascaris spp. and other genera can be determined.


2019 ◽  
Vol 131 (9-10) ◽  
pp. 1501-1518 ◽  
Author(s):  
Aoife Blowick ◽  
Peter Haughton ◽  
Shane Tyrrell ◽  
John Holbrook ◽  
David Chew ◽  
...  

Abstract Pb isotope data from over 2400 detrital K-feldspars in >50 modern sands sampled across the Mississippi-Missouri River drainage basin of North America have been collected in order to construct the first basin-wide provenance model using geochemical signals in a framework, rather than an accessory, mineral. This study represents a critical initial step in understanding the long-term routing of framework sand grains through the Mississippi-Missouri River drainage basin. Four unique Pb isotopic groups, otherwise petrographically and geochemically indistinguishable, are identifiable. Source comparisons reveal two groups corresponding to the Archean Superior and Wyoming terranes to the north of the catchment. The remaining two Pb groups represent a mixture of Appalachian, Grenville and older Granite-Rhyolite, and Yavapai-Mazatzal sourced-grains in the east of the catchment, with noteworthy input from Cenozoic volcanic rocks along the western fringe of the catchment to tributaries west of the Mississippi River, confirming prior assertions of zircon recycling in the lower drainage basin. Tracing suites of Pb isotopic groups provide a detailed map of previously undocumented tributary mixing and reveals the importance of long-lived, naturally formed impoundments in the Upper Mississippi River, which locally sequester and release sand. Tentative proportioning of sediment contributions to the terminus of the Mississippi River from individual tributaries produces similar results to recent U-Pb zircon models, boding well for the use of framework grain based modeling of sediment fluxes. The study is the largest application of Pb-in-K-feldspar fingerprinting to date and advocates its potential as a new and necessary tool for constraining relative source contributions to sinks—which will have wide applicability—especially if combined with provenance information from detrital grains of varying resilience, within large drainage systems.


2000 ◽  
Vol 57 (2) ◽  
pp. 391-404 ◽  
Author(s):  
Wansuk Senanan ◽  
Anne R Kapuscinski

We assessed genetic variation, using microsatellite markers, in 14 populations of northern pike (Esox lucius) in the North Central United States and in six populations from Quebec, Alaska, Siberia, and Finland. Eight of 13 loci examined were polymorphic in at least one population with an average heterozygosity at all loci and across all populations of 0.14. The Rst and Fst values indicated differentiation among populations (Rst = 0.61, Fst = 0.42). Although microsatellite variation found in northern pike was much lower than that found in sympatric and other fish species, the polymorphisms differentiated populations of greater geographical proximity than was possible in prior studies using allozymes and mitochondrial DNA. We generated UPGMA-clustering phenograms based on five genetic distance measures with 2000 bootstrap replicates per measure. All measures yielded highly repeatable population structure between continents (supporting values = 92.4-100%) and within Finland (42.3-98%). Four measures differentiated the Alaskan population and Young Lake (Great Lakes drainage) from other North American populations (56.6-87.7%). Relationships among other North Central United States populations were unclear, as indicated by low supporting values. Results support the hypotheses of one refugium in the North Central United States and more than one refugium in Europe during the last glaciation.


1970 ◽  
Vol 27 (3) ◽  
pp. 587-591 ◽  
Author(s):  
Fred C. June

Widespread atresia in northern pike ovaries was associated with low year-class abundance in three successive years, 1966–68, in Lake Oahe and Lake Sharpe, South Dakota, two large Missouri River impoundments. Atresia was associated with fluctuations in water temperature and level that apparently interrupted spawning.


2021 ◽  
Vol 83 (3) ◽  
Author(s):  
Mehdi Moslemi-Aqdam ◽  
George Low ◽  
Mike Low ◽  
Brian A. Branfireun ◽  
Heidi K. Swanson

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