Environmental factors regulate the effects of roach Rutilus rutilus and pike Esox lucius on perch Perca fluviatilis populations in small boreal forest lakes

Olin, Mikko; Vinni, Mika; Lehtonen, Hannu; Rask, Martti; Ruuhijärvi, Jukka; Saulamo, Kari; Ala-Opas, Pasi

doi:10.1111/j.1095-8649.2010.02559.x

Cited by 25 publications

(37 citation statements)

References 43 publications

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“…Van Densen 1994) and may be one of the factors, due to which no dependence of perch abundance on pike abundance was observed. At age of 7 years, the growth of perch increased with increasing roach abundance, being in accordance with earlier studies (Hjelm et al 2000;Olin et al 2010) and suggesting that roach served as a resource for piscivorous perch. Depending on the conditions, pike can prefer cyprinids over perch in prey selection, or vice versa (Eklöv & Hamrin 1989).…”

Section: Pike Biomass Kgaeha )1supporting

confidence: 92%

Perch production in forest lakes: the contribution of abiotic and biotic factors

Horppila

Olin

Vinni

et al. 2010

Ecology of Freshwater Fish

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Horppila J, Olin M, Vinni M, Estlander S, Nurminen L, Rask M, Ruuhijärvi J, Lehtonen H. Perch production in forest lakes: the contribution of abiotic and biotic factors. Ecology of Freshwater Fish 2010: 19: 257–266. © 2010 John Wiley & Sons A/S Abstract – The biomass, growth and production of perch (Perca fluviatilis (L.)) in five humic forest lakes in southern Finland were estimated and the abiotic and biotic factors contributing to the between‐lake differences were explored. The average perch biomass in the study lakes varied from 13.1 to 45.6 kg·ha−1 and annual production from 6.0 to 16.5 kg·ha−1. The highest biomass and production were found in Lake Majajärvi with highest water colour and nutrient concentration. Variability in fish density rather than in individual growth rate seemed to be the main factor behind the between‐lake differences in perch production. No dependence of perch production on water transparency was found, because transparency had a stronger effect on individual growth than on fish density. The length increment of perch in their second year increased significantly with water transparency but at older ages no such dependence was found. At age of 4 years, the growth rate of perch decreased with perch density, indicating intraspecific competition for benthic food resources. At age of 7 years, the growth rate increased with increasing roach (Rutilus rutilus (L.)) abundance, suggesting that roach served as a resource for piscivorous perch. The effects of predatory top‐down control on perch populations were probably obscured due to the variable size and water quality of the study lakes.

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Section: Pike Biomass Kgaeha )1supporting

confidence: 92%

Perch production in forest lakes: the contribution of abiotic and biotic factors

Horppila

Olin

Vinni

et al. 2010

Ecology of Freshwater Fish

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“…Environmental drivers that lead to deteriorating optical properties of water should thus have strong effects on prey encounter rates and thereby negatively affect foraging and growth rates of visual foragers, as evident in studies of turbidity (Craig & Babaluk, 1989) and water colour (Estlander et al, 2010;Olin et al, 2010) on growth rates of predatory fish. Environmental drivers that lead to deteriorating optical properties of water should thus have strong effects on prey encounter rates and thereby negatively affect foraging and growth rates of visual foragers, as evident in studies of turbidity (Craig & Babaluk, 1989) and water colour (Estlander et al, 2010;Olin et al, 2010) on growth rates of predatory fish.…”

Section: Discussionmentioning

confidence: 99%

Effects of brown and turbid water on piscivore–prey fish interactions along a visibility gradient

et al. 2012

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Summary 1. Environmental changes such as eutrophication and increasing inputs of humic matter (brownification) may have strong effects on predator–prey interactions in lakes through a reduction in the visual conditions affecting foraging behaviour of visually oriented predators. 2. In this experiment, we studied the effects of visual range (25–200 cm) in combination with optically deteriorating treatments (algae, clay or brown humic water) on predator–prey interactions between pike (Esox lucius) and roach (Rutilus rutilus). We measured effects on reaction distance and strike distance for pike and escape distance for roach, when pike individuals were exposed to free‐swimming roach as well as to roach held in a glass cylinder. 3. We found that reaction distance decreased with decreasing visual range caused by increasing levels of algae, clay or humic matter. The effect of reaction distance was stronger in turbid water (clay, algae) than in the brown water treatment. 4. Strike distance was neither affected by visual range nor by optical treatment, but we found shorter strike distances when pike attacked roach using visual cues only (roach held in a cylinder) compared to when pike could use multiple senses (free‐swimming roach). Escape distance for roach was longer in turbid than in brown water treatments. 5. Changes in environmental drivers, such as eutrophication and brownification, affecting the optical climate should thus have consequences for the strength of predator–prey interactions through changes in piscivore foraging efficiency and prey escape behaviour. This in turn may affect lake ecosystems through higher‐order interactions.

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“…Generally, the juvenile perch feeds on zooplankton and gradually shifts to a diet of macroinvertebrates and fish (Mustamäki et al 2013). This species also changes habitats during the ontogeny (from the pelagic zone to the littoral zone) (Olin et al 2010).…”

Section: Introductionmentioning

confidence: 99%

Concentrations of 18 Elements in Muscle, Liver, Gills, and Gonads of Sichel (Pelecus cultratus), Ruffe (Gymnocephalus cernua), and European Perch (Perca fluviatilis) in the Danube River near Belgrade (Serbia)

Subotić

Višnjić-Jeftić

Spasić

et al. 2015

Water Air Soil Pollut

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The analysis of 18 elements in muscle, liver, gills, and gonads of sichel (Pelecus cultratus), ruffe (Gymnocephalus cernua), and European perch (Perca fluviatilis), caught at a polluted segment of the Danube River near Belgrade, was carried out with the aim to expand the knowledge about the ecotoxicology of these species for monitoring purposes and the possible impact on human health. Generally, the elemental concentration significantly differed between species and tissues (p<0.0001), and a statistical interaction between these two factors was observed (p<0.0001). In muscle and liver, concentrations of Hg and Se were statistically higher in ruffe than in sichel and European perch. In gills, statistically highest concentrations of Mn, Sr, and Zn were found in sichel, and of Fe in European perch. In gonads, statistically highest concentrations of As were detected in sichel, of Zn in ruffe, and of Mn and Mo in European perch. The highest number of coefficients of partial correlations between fish weight and element levels was found in sichel (11 in total). Of all analyzed elements, Al and B had the highest number of partial correlations in tissues. The levels of Hg exceeded the maximum acceptable concentration (0.5 mg kg −1 ) in all muscle samples, which can pose a risk for human consumption. Different diet preferences of the investigated fish species resulted in a different accumulation of elements in tissues, and ruffe (as a species that consume mainly benthic macroinvertebrates) accumulated the highest level of Hg, which makes it suitable for monitoring of this element in water bodies.

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Environmental factors regulate the effects of roach Rutilus rutilus and pike Esox lucius on perch Perca fluviatilis populations in small boreal forest lakes

Cited by 25 publications

References 43 publications

Perch production in forest lakes: the contribution of abiotic and biotic factors

Perch production in forest lakes: the contribution of abiotic and biotic factors

Effects of brown and turbid water on piscivore–prey fish interactions along a visibility gradient

Concentrations of 18 Elements in Muscle, Liver, Gills, and Gonads of Sichel (Pelecus cultratus), Ruffe (Gymnocephalus cernua), and European Perch (Perca fluviatilis) in the Danube River near Belgrade (Serbia)

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