Predation on Age-0 Paddlefish by Walleye and Sauger in a Great Plains Reservoir

Parken, Charles K.; Scarnecchia, Dennis L.

doi:10.1577/1548-8675(2002)022<0750:poapbw>2.0.co;2

Cited by 14 publications

(8 citation statements)

References 27 publications

(47 reference statements)

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“…Predation may be one important reason why the age‐0 and age‐1 paddlefish in this study allocated energy to growth in length. In Lake Sakakawea, age‐0 paddlefish, and even some age‐1 fish, have been shown to be highly vulnerable to predation from walleye Sander vitreus (Mitchill, 1818) , sauger Sander canadensis (Griffith and Smith, 1834), and other species (Mero, Willis, & Power, ; Parken & Scarnecchia, ). The presence of these large predators may create a situation where overcoming predator gape limit by growing larger as rapidly as possible is beneficial within the constraints of overwinter survival their first year.…”

Section: Discussionmentioning

confidence: 99%

Energy acquisition and retention by age-0 and age-1 paddlefishPolyodon spathula(Walbaum, 1792) in relation to size, growth, and rearing conditions in two Great Plains reservoirs and hatchery ponds

Hemingway¹,

Scarnecchia

2016

J. Appl. Ichthyol.

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The objective of this study was to investigate lipid accumulation and storage in age-0 and age-1 paddlefish Polyodon spathula (Walbaum, 1792) in relation to age, stock,year, and growth. Juvenile paddlefish were collected from three locations in North Dakota and Montana, USA, during July and August of 2011 and 2012 and proximate analysis was used to determine lipid content. RNA/DNA ratios were used as an index of growth rates. Differences in age-based lipid accumulation and storage in juvenile paddlefish suggest a split allocation between growth and lipid storage, with growth being the highest initial priority and emphasis on energy storage occurring at a larger size, later in life. Differences in lipid allocation between stocks indicate that allocation is influenced by hatchery/wild rearing conditions. Differences within and betweenyear-classes are consistent with field evidence observed in 2012 of a strong 2011 yearclass, and indicate that during productive times, paddlefish may allocate energy to both body growth and lipid reserves, and that allocation differs among years. The lack of a relationship between RNA/DNA ratio and lipid does not support a physiologically exclusive allocation strategy between growth and lipid. Evidence from this and other studies suggests rather that an emphasis on growth, some energy storage, and a large rostrum size in relation to overall fish length in age-0 and age-1 fish, may be adaptive in avoiding predation while accruing necessary energy reserves for overwintering.Although this study also provides reference information regarding proximate composition of wild and hatchery origin juvenile paddlefish, much more study is needed into the relationships among growth, low and high lipid groups, lipid allocation in juvenile paddlefish as well as the existence and timing of allocation changes between growth and storage. To aid in understanding paddlefish survival and year-class strengths, these relationships also need to be linked to inter-annual differences in early rearing environments for age-0 and age-1 fish.

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Section: Discussionmentioning

confidence: 99%

Energy acquisition and retention by age-0 and age-1 paddlefishPolyodon spathula(Walbaum, 1792) in relation to size, growth, and rearing conditions in two Great Plains reservoirs and hatchery ponds

Hemingway¹,

Scarnecchia

2016

J. Appl. Ichthyol.

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“…The accumulation of large GFBs in both stocks is highest per unit fish weight and per gonad weight in young recruits ( Figure 9A,B), suggesting that once the fish grow large enough to escape predation (Parken and Scarnecchia, 2002), significant reviews in fisheries science vol. 19 3 2011…”

Section: Metabolic Demand Energy Allocation the Cost Of Reproductiomentioning

confidence: 99%

Southern and Northern Great Plains (United States) Paddlefish Stocks Within Frameworks of Acipenseriform Life History and the Metabolic Theory of Ecology

Scarnecchia

Gordon²,

Schooley³

et al. 2011

Reviews in Fisheries Science

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on a southern Great Plains stock of paddlefish Polyodon spathula inhabiting the Neosho River, Spring River, and Grand Lake, Oklahoma, is characterized (1) in terms of the Acipenseriform life history framework outlined for the Yellowstone-Sakakawea stock of the Northern Plains and (2) in relation to the framework metabolic theory of ecology and associated latitudinal and environmental correlations with lifespan. In the Grand Lake stock, male fish typically mature at ages 6-7, and females mature at ages 8-9. The five stages of the lifespan (immature, maturing, growth and reproduction, prime reproduction, senescence to death) are compressed into a period of 15-20 years; the prime reproduction period occurs from ages 12 to 16 years for females. This lifespan compares to one of 40-50 years (and occasionally longer), and a prime reproduction period for females from ages 25 to 40 years, for the Yellowstone-Sakakawea stock. The more compressed lifespan of the Grand Lake stock and lower energy storage, as indicated by weights of gonadal fat bodies, are consistent with the framework metabolic theory of ecology. Over the course of a year, fish in Grand Lake are under a much higher metabolic demand than those in Lake Sakakawea. The distinct differences detailed between these two stocks from the southern and northern plains may exist between other paddlefish stocks, other Acipenseriform species, and other fish taxa separated by large latitudinal and climatic differences. The results have specific implications for harvest management and effects of climate change on Acipenseriform life histories and lifespan.

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“…Tidwell and Mims (1990) reported that paddlefish fingerlings (9-15 cm TL) did not survive, probably owing to predation, when stocked with channel catfish Ictalurus punctatus (greater than 38 cm TL) in polyculture. Meanwhile, in Lake Sakakawea, a Missouri River reservoir, walleye Sander vitreus and sauger S. canadense consumed age-0 paddlefish up to 305 mm TL (Mero et al 1994;Parken and Scarnecchia 2002).…”

Section: Population Assessmentmentioning

confidence: 99%

Stocking Success of Paddlefish in Lake Francis Case, South Dakota: Population Characteristics and Sport Fishery Potential

et al. 2011

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Lake Francis Case, South Dakota, a Missouri River reservoir, supported a paddlefish Polyodon spathula sport fishery shortly after impoundment, but this fishery closed in 1986 owing to a lack of natural recruitment. Lake Francis Case has been stocked intermittently since 1974 and annually since 1990 to maintain the population and potentially sustain a sport harvest. To evaluate the success of these stockings, we assessed the current status of the Lake Francis Case paddlefish population (i.e., population characteristics and dynamics) and evaluated the potential effects of exploitation on this population. Advanced fingerling stockings have been effective, as 56% of sampled fish were of hatchery origin (indicated by coded wire tags), and may sustain a harvestable population. Year‐class strength was negatively correlated to water temperature inputs from Big Bend Dam and positively correlated to White River discharge. Downstream emigration is probably responsible for most of the variability in year‐class strength, and the rate of downstream emigration may be greater during years with warmer water temperatures. Harvest simulations suggested that growth overfishing was possible under a 660‐mm minimum length limit but not under 840‐mm and 1,016‐mm minimum length limits. The proportional size distribution of memorable‐length fish (PSD‐M) was reduced 28.6% and 14.3%, respectively, by 5% exploitation under simulated 660‐mm and 840‐mm minimum length limits. Under a simulated 1,016‐mm minimum length limit, PSD‐M was unchanged by 10% exploitation. At 5% exploitation, broodstock availability was reduced by more than 30% under the simulated 660‐mm and 840‐mm minimum length regulations and was reduced 16% under the 1,016‐mm minimum length limit. Our results suggest that this population could support a limited (e.g., 5% exploitation) sport fishery under a high (e.g., 1,016‐mm) minimum length limit without substantial changes in size structure or the availability of broodstock if stockings are continued.

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Predation on Age-0 Paddlefish by Walleye and Sauger in a Great Plains Reservoir

Cited by 14 publications

References 27 publications

Energy acquisition and retention by age-0 and age-1 paddlefishPolyodon spathula(Walbaum, 1792) in relation to size, growth, and rearing conditions in two Great Plains reservoirs and hatchery ponds

Energy acquisition and retention by age-0 and age-1 paddlefishPolyodon spathula(Walbaum, 1792) in relation to size, growth, and rearing conditions in two Great Plains reservoirs and hatchery ponds

Southern and Northern Great Plains (United States) Paddlefish Stocks Within Frameworks of Acipenseriform Life History and the Metabolic Theory of Ecology

Stocking Success of Paddlefish in Lake Francis Case, South Dakota: Population Characteristics and Sport Fishery Potential

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