Modeling sources of variation for growth and predatory demand of Lake Erie walleye (<i>Stizostedion vitreum</i>), 1986-1995

Kershner, Mark W.; Schael, Denise M.; Knight, Roger L.; Stein, Roy A.; Marschall, Elizabeth A.

doi:10.1139/f98-193

Cited by 46 publications

(48 citation statements)

References 22 publications

(12 reference statements)

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“…We compiled data on walleye abundance from the literature (Lyons and Magnuson 1987;Johnson et al 1992b;Mitzner 1992;Beard et al 1997;Carlander 1997;Kershner et al 1999;Nate et al 2000) to compare with walleye abundance in Spirit Lake. Abundance estimates from 63 lakes (age-classes greater than age 0) averaged 27.2 fish/ha, compared with a 3-year average of 196.4 fish/ha (Ն150 mm) in Spirit Lake.…”

Section: Discussionmentioning

confidence: 99%

“…1993; Kershner et al 1999). Most consumption studies to date have focused on single species, but several authors have recognized the need to account for all major piscivorous species in a system (Kempinger and Carline 1977;Stewart et al 1981;Johnson et al 1992b;LaBar 1993;Hartman and Brandt 1995a;Kershner et al 1999).…”

mentioning

confidence: 99%

“…Most consumption studies to date have focused on single species, but several authors have recognized the need to account for all major piscivorous species in a system (Kempinger and Carline 1977;Stewart et al 1981;Johnson et al 1992b;LaBar 1993;Hartman and Brandt 1995a;Kershner et al 1999). A few recent studies have attempted to quantify consumption by several species, allowing comparisons of their trophic effects as well as evaluation of past and future management actions (Johnson et al 1992a;Raborn et al 2002;Raborn et al 2003).…”

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confidence: 99%

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Consumption Dynamics of the Adult Piscivorous Fish Community in Spirit Lake, Iowa

Liao¹,

Pierce²,

Larscheid³

2004

N American J Fish Manag

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At Spirit Lake, one of Iowa's most important fisheries, walleye Sander vitreus (formerly Stizostedion vitreum) is one of the most popular species with anglers. Despite a century of walleye stocking and management in Spirit Lake, walleye growth rate, size structure, and angler harvest continue to decline. Our purpose was to determine the magnitude and dynamics of walleye population consumption relative to those of other piscivorous species in Spirit Lake, which would allow managers to judge the feasibility of increasing the abundance, growth rate, and size structure of the walleye population.We quantified food consumption by the adult piscivorous fish community in Spirit Lake over a 3-year period. Data on population dynamics, diet, energy density, and water temperature from 1995 to 1997 were used in bioenergetics models to estimate total consumption by walleye, yellow perch Perca flavescens, smallmouth bass Micropterus dolomieu, largemouth bass Micropterus salmoides, black crappie Pomoxis nigromaculatus, and northern pike Esox lucius. Estimated annual consumption by the piscivorous community varied roughly fourfold, ranging from 154,752 kg in 1995 to 662,776 kg in 1997. Walleyes dominated total consumption, accounting for 68, 73, and 90% (1995-1997, respectively) of total food consumption. Walleyes were also the dominant consumers of fish, accounting for 76, 86, and 97% of piscivorous consumption; yellow perch followed, accounting for 16% of piscivorous consumption in 1995 and 12% in 1996. Yellow perch were the predominant fish prey species in all 3 years, accounting for 68, 52, and 36% of the total prey consumed. Natural reproduction is weak, so high walleye densities are maintained by intensive stocking. Walleye stocking drives piscivorous consumption in Spirit Lake, and yearly variation in the cannibalism of stocked walleye fry may be an important determinant of walleye year-class strength and angler success. Reducing walleye stocking intensity, varying stocking intensity from year to year, and attempting to match stocking intensity with the abundance of prey species other than walleye may improve the walleye fishery in Spirit Lake. RightsWorks produced by employees of the U.S. Government as part of their official duties are not copyrighted within the U.S. The content of this document is not copyrighted. Abstract.-At Spirit Lake, one of Iowa's most important fisheries, walleye Sander vitreus (formerly Stizostedion vitreum) is one of the most popular species with anglers. Despite a century of walleye stocking and management in Spirit Lake, walleye growth rate, size structure, and angler harvest continue to decline. Our purpose was to determine the magnitude and dynamics of walleye population consumption relative to those of other piscivorous species in Spirit Lake, which would allow managers to judge the feasibility of increasing the abundance, growth rate, and size structure of the walleye population. We quantified food consumption by the adult piscivorous fish community in Spirit Lake over a 3-year...

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Section: Discussionmentioning

confidence: 99%

mentioning

confidence: 99%

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confidence: 99%

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Consumption Dynamics of the Adult Piscivorous Fish Community in Spirit Lake, Iowa

Liao¹,

Pierce²,

Larscheid³

2004

N American J Fish Manag

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“…BEMs are appealing because they are based on balanced, energy-fate equations that have been thought to promote reasonable predictive behavior. These models have been widely used to evaluate factors that constrain fish growth (Hayward and Margraf 1987;Hill and Magnuson 1990), impacts of fish predation on prey populations (Jones et al 1993;Rand et al 1995;Kershner et al 1999), contaminant bioaccumulation in fishes (Jackson 1996), and waste loads from aquaculture (Axler et al 1994). They have also been applied to enhance understanding of basic ecological processes such as the role of fish in lake nutrient cycling (Schindler and Eby 1997), and commonly serve as subcomponents of individual-based models of fish life history and population dynamics (Trebitz 1991;Rose and Cowan 1993) and other model types (Hayes et al 2000;Burke and Rice 2002).…”

Section: Introductionmentioning

confidence: 99%

Widespread consumption-dependent systematic error in fish bioenergetics models and its implications

Bajer

Whitledge

Hayward

2004

Can. J. Fish. Aquat. Sci.

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Data from laboratory evaluations of seven fish bioenergetics models (BEMs) were used to investigate possible associations between BEM prediction error in relative growth rate (RGR error ) and levels of model input variables: mean daily food-consumption rate and fish body weight. Correlation between RGR error and fish body weight was found in three BEMs applied under submaintenance feeding conditions. A strong correlation between RGR error and mean daily consumption level was observed in all models over full consumption ranges; consumption level explained 70%-96% of variation in RGR error . All BEMs underestimated (by 2-to 5-fold) growth at lower consumption levels and overestimated (by 2-to 3-fold) growth at higher consumption levels. RGR error values associated with higher consumption levels were greater (up to 22 cal·g -1 ·day -1 ) than those at lower consumption levels (up to 10 cal·g -1 ·day -1 ). Correlation between consumption rate and RGR error in all seven models indicates widespread systematic error among BEMs that likely arises from deficiencies in consumption-dependent model parameters. Results indicate that many BEMs are substantially inaccurate when predicting fish growth from higher feeding rates or estimating consumption from higher growth rates, even when higher consumption levels or growth episodes are of short duration. Findings obtained under submaintenance feeding conditions indicate that additional body-weight-and consumption-dependent terms should be added to BEM subequations for routine metabolism to account for metabolic reduction.Résumé : Les données des évaluations en laboratoire de sept modèles bioénergétiques (BEM) de poissons nous ont servi à étudier les associations possibles entre l'erreur de prédiction par les BEM du taux relatif de croissance (RGR erreur ), d'une part, et la valeur des variables d'entrée des modèles, soit le taux journalier moyen de consommation de nourriture et la masse corporelle des poissons, d'autre part. Il existe une corrélation entre RGR erreur et la masse corporelle des poissons dans trois des BEM utilisés dans des conditions d'alimentation inférieures au niveau de maintien (SMFC). Il y a aussi une forte corrélation entre RGR erreur et le taux journalier moyen de consommation dans tous les modèles sur toute l'étendue des taux de consommation; le taux de consommation explique 70 -96 % de la variation de RGR erreur . Tous les BEM sous-estiment la croissance (par un facteur de 2-5) aux faibles taux de consommation et la surestiment (par un facteur de 2-3) aux taux de consommation plus élevés. Les RGR erreur associées aux taux plus élevés de consommation sont plus grandes (pouvant atteindre 22 cal·g -1 ·jour -1 ) que celles liées aux taux de consommation plus faibles (atteignant 10 cal·g -1 ·jour -1 ). La corrélation entre le taux de consommation et RGR erreur dans les sept modèles indique qu'il y a une erreur systématique générale dans les BEM qui provient vraisemblablement d'imprécisions des paramètres des modèles reliés à la consommation. Nos rés...

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“…Most bioenergetics models for fish have indicated that feeding rates, i.e., Hewett-Johnson p values, are around 0.3-0.4 [40][41][42]. Urtizbera et al [36] assumed that p of northern anchovy increases from 0.42 to 0.78, proportionally to body mass.…”

Section: Discussionmentioning

confidence: 99%

Daily growth rate model of Japanese anchovy larvae Engraulis japonicus in Hiuchi-nada Sea, central Seto Inland Sea

Zenitani

Kono

2012

Fish Sci

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In the present study, we developed a larval anchovy growth model in relation to sea temperature and food availability via food consumption and metabolic process terms, based on biological data from previous laboratory experiments and field surveys from 2003 to 2006 in Hiuchi-nada Sea, central part of Seto Inland Sea, Japan. To investigate when food shortage for larval anchovy and then recruitment failure occur in Hiuchi-nada Sea, anchovy food requirements were estimated by using the growth model, and we compared the food requirement with anchovy food availability. We applied an estimation method for growth model parameters, Hewett-Johnson p and Q 10 , by minimizing the sum of squares of difference between mass-specific growth rates estimated by the models and those by otolith growth analysis. Parameter p was 0.86, slightly higher than typical values, and Q 10 was 2.11, close to the value used for the biological model of larval northern anchovy. Food shortage for anchovy larvae did not occur in Hiuchi-nada Sea, although it was indicated that low food availability led to a low reproductive success rate. The newly developed growth model is considered optimal at present and useful to link environmental conditions and larval growth.

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Modeling sources of variation for growth and predatory demand of Lake Erie walleye (Stizostedion vitreum), 1986-1995

Cited by 46 publications

References 22 publications

Consumption Dynamics of the Adult Piscivorous Fish Community in Spirit Lake, Iowa

Consumption Dynamics of the Adult Piscivorous Fish Community in Spirit Lake, Iowa

Widespread consumption-dependent systematic error in fish bioenergetics models and its implications

Daily growth rate model of Japanese anchovy larvae Engraulis japonicus in Hiuchi-nada Sea, central Seto Inland Sea

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