Comparative Population Characteristics of Muskellunge (Esox masquinongy), Northern Pike (E. lucius), and Their Hybrid (E. masquinongy × E. lucius)

Wahl, David H.; Stein, Roy A.

doi:10.1139/f93-218

Cited by 36 publications

(25 citation statements)

References 28 publications

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“…Northern pike diets were dominated by yellow perch in some previous studies (e.g., Chapman et al 1989), but also by other prey fish species such as walleye (Sammons et al 1994), gizzard shad Dorosoma cepedianum (Lesueur) (Wahl & Stein 1993), common carp Cyprinus carpio (Linnaeus), and black crappie (Sammons et al 1994). Northern pike in Spirit Lake ate yellow perch almost exclusively.…”

Section: Discussionmentioning

confidence: 70%

Diet dynamics of the adult piscivorous fish community in Spirit Lake, Iowa, USA 1995–1997

Pelham

Pierce

Larscheid

2002

Ecology of Freshwater Fish

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Un resumen en espan˜ol se incluye detra´s del texto principal de este artı´culo.Abstract -Diets of adults of six important piscivorous fish species, black crappie Pomoxis nigromaculatus, largemouth bass Micropterus salmoides, northern pike Esox lucius, smallmouth bass Micropterus dolomieui, walleye Stizostedion vitreum, and yellow perch Perca flavescens were quantified in Spirit Lake, Iowa, USA from May to October in 1995-1997. Forty-one prey taxa were found in the diets of these species, including 19 species of fish. The most important prey taxa overall were yellow perch, amphipods and dipterans. Diets of northern pike and walleye were dominated by yellow perch. Largemouth bass diets included large percentages of both yellow perch and black bullhead Ameiurus melas. Smallmouth bass diets included large percentages of both yellow perch and crayfish. Black crappie and yellow perch diets were dominated by invertebrates, primarily amphipods and dipterans. There were pronounced differences in diets among species, among size classes within species and over time. Most of the dominant prey taxa we documented in the diets of piscivorous species were in accordance with previous studies, but a few deviated significantly from expectations. Many of the temporal diet changes were asynchronous among piscivorous species and size classes, suggesting different responses to common prey resources over time.

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Section: Discussionmentioning

confidence: 70%

Diet dynamics of the adult piscivorous fish community in Spirit Lake, Iowa, USA 1995–1997

Pelham

Pierce

Larscheid

2002

Ecology of Freshwater Fish

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“…The muskellunge has a somewhat more southerly distribution, but there is extensive overlap between the two species. Comparative ecological studies reveal only minor dietary differences, relating to such parameters as preferred prey size (Wahl and Stein 1993). Interestingly, the northern pike is a cosmopolitan species distributed across the Palearctic and Nearctic, whereas the muskellunge is endemic to North America.…”

Section: Discussionmentioning

confidence: 99%

A New Tristichopterid (Sarcopterygii, Tetrapodomorpha) From the Upper Famennian Evieux Formation (Upper Devonian) of Belgium

2009

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Additional material of a large specimen of tristichopterid fish from the Upper Famennian Evieux Formation of Belgium is described. This large fish was previously assigned to Tristichopteridae gen. et sp. indet. due to the lack of diagnostic anatomical data. New available material consists of the internal surface of the parietal shield, vomers and anterior part of the parasphenoid, subopercular and submandibulo-branchiostegal bones, and an internal view of the anterior part of the mandible. A possible autapomorphy of the new form from Belgium, Langlieria socqueti gen. nov. et sp. nov., is the absence of marginal teeth on the vomer except on its most lateral part. Apart from these features, it only differs from the genus Mandageria from Australia in the absence of marginal teeth between the dentary fang and the mandibular symphysis, in the presence of a raised marginal crest lateral to the anterior coronoid fang, and in the presence of numerous small marginal teeth on the premaxilla. It differs from the cosmopolitan genus Eusthenodon in a number of respects: the supratemporal, tabular, and postparietal bones are superficially fused, as are the intertemporal and parietal bones, the dermal ornament is proportionally very fine, and the denticulated field of the parasphenoid stands proud rather than being recessed into the body of the bone.

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“…But where low persistence rules out possible effects of Shoepack ancestry, MNDNR biologists can focus on other biotic and abiotic factors if size structure is a concern. Studies have shown that muskellunge grow more slowly depending on the species (Wahl and Stein 1988) and size (Wahl and Stein 1993) of available prey. Abiotic factors, especially temperature, have been shown to affect muskellunge growth (Bevelhimer et al 1985;Wahl and Stein 1991;Clapp and Wahl 1996).…”

Section: Management Implicationsmentioning

confidence: 99%

The Impact of Stocking on the Current Ancestry in Twenty Native and Introduced Muskellunge Populations in Minnesota

2012

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Fish stocking, often from multiple source populations, is a common management practice frequently conducted without the means or effort to determine the reproductive contributions of stocked fish. Historically, the Minnesota Department of Natural Resources (MNDNR) has stocked four strains of muskellunge Esox masquinongy, but the contribution of these strains to current populations was unknown. Two strains came from Minnesota lakes, Shoepack Lake and Leech Lake, and the other strains came from Wisconsin and Iowa hatcheries and were of uncertain origin. The MNDNR discontinued stocking the Shoepack strain in the 1980s when that strain displayed poor growth in stocked waters. Managers were concerned that ancestry from this strain might be limiting the genetic potential for muskellunge to attain trophy size in stocked populations. Using 13 microsatellite DNA markers, we determined the ancestry of muskellunge in 10 supplemented native populations and 10 introduced populations. The ancestry from each of the four stocked strains of muskellunge was detected in some populations, but the level of ancestry was unrelated to the amount of stocking of a strain. Ancestry from native populations persisted in six of the supplemented populations despite years of stocking. The potential effects of Shoepack strain ancestry on fish size were limited in most lakes because of its low persistence. All stocked strains reproduced in at least some of the lakes, but some lakes had no evidence of reproduction by any stocked strain. Our results will help MNDNR manage genetic diversity among muskellunge populations and direct efforts toward appropriate actions to improve size structure. This study reinforces how genetic data are often useful for evaluating ancestry in stocked fish populations, whereas stocking histories may be poor indicators of current genetic composition.

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Comparative Population Characteristics of Muskellunge (Esox masquinongy), Northern Pike (E. lucius), and Their Hybrid (E. masquinongy × E. lucius)

Cited by 36 publications

References 28 publications

Diet dynamics of the adult piscivorous fish community in Spirit Lake, Iowa, USA 1995–1997

Diet dynamics of the adult piscivorous fish community in Spirit Lake, Iowa, USA 1995–1997

A New Tristichopterid (Sarcopterygii, Tetrapodomorpha) From the Upper Famennian Evieux Formation (Upper Devonian) of Belgium

The Impact of Stocking on the Current Ancestry in Twenty Native and Introduced Muskellunge Populations in Minnesota

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