Effect of acute and chronic temperature transition on enzymes of cardiac metabolism in white perch (Morone americana), yellow perch (Perca flavescens), and smallmouth bass (Micropterus dolomieui)

1991 ◽  
Vol 69 (1) ◽  
pp. 258-262 ◽  
Author(s):  
Dawn H. Sephton ◽  
William R. Driedzic
Keyword(s):  
Yellow Perch ◽  
Citrate Synthase ◽  
White Perch ◽  
Perca Flavescens ◽  
Smallmouth Bass ◽  
Transferase Activity ◽  
Morone Americana ◽  
Coa Transferase ◽  
Micropterus Dolomieui ◽  
The Impact

White perch (Morone americana), yellow perch (Perca flavescens), and smallmouth bass (Micropterus dolomieui) were acclimated to 5 and 20 °C. There was an increase in ventricle mass relative to body mass in smallmouth bass only following acclimation to 5° C. Maximal in vitro activities of hexokinase, citrate synthase, carnitine acyl CoA transferase (with palmitoyl CoA, palmitoleoyl CoA, and oleoyl CoA as substrates), and total ATPase were assessed in crude heart homogenates. Tissues removed from warm-acclimated animals were tested at 20 and 5 °C; tissues removed from cold-acclimated animals were assessed at 5 °C. Acute temperature transitions were associated with decreases in the activities of hexokinase (Q10 ≈ 1.8), citrate synthase (Q10 ≈ 1.4), and ATPase (Q10 ≈ 1.7). The impact of temperature on carnitine acyl CoA transferases was generally less severe. This suggests that maximal fatty acid oxidation is conserved better than glucose oxidation during a warm to cold transition. Maximal enzyme activities were generally unaffected by the acclimation regime, with the exception of that of carnitine acyl CoA transferase in white perch heart. The substantial increase in carnitine acyl CoA transferase activity when unsaturated CoA derivatives were provided as substrate suggests an increased capacity to oxidize unsaturated fatty acids at low temperature following an acclimation period. Attempts to sustantiate this contention by offering labelled oleic acid to ventricle sheets were thwarted by a high rate of incorporation into the total lipid pool.

Aggression of guarding male smallmouth bass (Micropterus dolomieui) towards potential brood predators near the nest

1993 ◽  
Vol 71 (2) ◽  
pp. 437-440 ◽  
Author(s):  
R. J. Ongarato ◽  
E. J. Snucins
Keyword(s):  
Aggressive Behaviour ◽  
Yellow Perch ◽  
Perca Flavescens ◽  
Smallmouth Bass ◽  
Brown Bullhead ◽  
Ictalurus Nebulosus ◽  
Defence Behaviour ◽  
Micropterus Dolomieui ◽  
Brood Guarding

Models of potential brood predators placed near the nest were used to elicit defence behaviour in male smallmouth bass (Micropterus dolomieui) in the field. The three predator models represented a conspecific, a species found in the lake (yellow perch, Perca flavescens), and a species not present in the lake (brown bullhead, Ictalurus nebulosus). Aggressive behaviour increased with brood age and with decreasing distance between model and nest. Brood-guarding smallmouth bass exhibited a generalized response to the three predator models and did not discriminate between them by altering levels of aggression.

Behaviour, Energetics, and Associated Mortality of Young-of-the-Year White Perch (Morone americana) and Yellow Perch (Perca flavescens) under Simulated Winter Conditions

1991 ◽  
Vol 48 (4) ◽  
pp. 672-680 ◽  
Author(s):  
Timothy B. Johnson ◽  
David O. Evans
Keyword(s):  
Yellow Perch ◽  
White Perch ◽  
Perca Flavescens ◽  
Direct Consequence ◽  
Dry Weight ◽  
Routine Metabolic Rate ◽  
Winter Period ◽  
Small Fish ◽  
Morone Americana ◽  
Winter Conditions

After 150 d of simulated winter conditions, 71.2% of the white perch (Morone americana) had died at 2.5 °C, while only 11.1% had died at 4.0 °C. For yellow perch (Perca flavescens), 0.8% had died at 2.5 °C, while 17.7% had died at 4.0 °C. For both species, small fish died first. Multiple regression models relating overwinter mortality versus fall total length and winter duration predict 3.3 times greater mortality for white perch versus similar sized yellow perch at winter temperature regimes typical of the Great Lakes region. In laboratory tanks, white perch remained active throughout the winter period, while yellow perch sought cover and rested on or near the bottom of the experimental tanks. As a direct consequence, yellow perch had a lower routine metabolic rate and consumed body energy more gradually than white perch. During their inactive wintering period at 4.0 °C, yellow perch consumed 25.8% less oxygen than white perch. Actual measurements of dry weight loss indicated that yellow perch in the experimental tanks at 2.5 °C consumed 24.6% less dry weight than similar sized white perch. These differences in overwinter behaviour, metabolism, and survival appear to be adequate to account for observed differences in survival of these species in the wild.

Interactions between White Perch (Morone amerićana) and Yellow Perch (Perca flavescens) in Lake Erie as Determined from Feeding and Growth

1990 ◽  
Vol 47 (9) ◽  
pp. 1779-1787 ◽  
Author(s):  
Donna L. Parrish ◽  
F. Joseph Margraf
Keyword(s):  
Food Consumption ◽  
Yellow Perch ◽  
White Perch ◽  
Perca Flavescens ◽  
Diet Overlap ◽  
Central Basin ◽  
Morone Americana ◽  
Western Basin ◽  
Consumption Rates ◽  
Growth Differences

Since the mid-1970's, white perch Morone americana have expanded rapidly, resulting in possible major interactions with the native yellow perch Perca flavescens. We compared the food consumption rates, diet overlap, and growth of white perch and yellow perch from field data collected during 1983–85 and 1987. Food consumption rates were as much as 27% greater in white perch than in yellow perch, and were higher for both species in the central basin than in the western basin. Seasonal diet composition was most alike in summer and less so in spring and fall, when yellow perch ate more benthos or fish than did white perch. Of 48 Schoener index comparisons of diet overlap during a 3-yr period, 52% were significant (> 0.6). Although yellow perch grew faster in the central basin, reflecting the greater consumption rates, white perch did not show the similar large interbasin growth differences.

Observations on the glochidia of Lampsilis radiata (Gmelin) infesting yellow perch, Perca flavescens (Mitchill) in the Bay of Quinte, Lake Ontario

1969 ◽  
Vol 47 (4) ◽  
pp. 705-712 ◽  
Author(s):  
Shibru Tedla ◽  
C. H. Fernando
Keyword(s):  
Yellow Perch ◽  
White Perch ◽  
Micropterus Salmoides ◽  
Perca Flavescens ◽  
Lake Ontario ◽  
Smallmouth Bass ◽  
Lepomis Gibbosus ◽  
Experimental Conditions ◽  
Pomoxis Nigromaculatus ◽  
Rock Bass

Analysis of incidence and intensity of infestation of yellow perch, Perca flavescens (Mitchill), by the glochidia of Lampsilis radiata from weekly samples from May to September and single samples in October and November indicate that the two subspecies, Lampsilis radiata radiata and Lampsilis radiata siliquoidea, shed their glochidia in late spring and throughout the summer in the Bay of Quinte, Lake Ontario. Smaller fish are more heavily infested with these glochidia than larger ones. About 50% of the preparasitic glochidia of Lampsilis radiata siliquoidea survived for 12, 70, and 120 h at 20°, 12°, and 10 °C respectively. The parasitic period of the glochidia of L. r. siliquoidea on yellow perch under experimental conditions was 50 days at 15 °C from the May infestation. Yellow perch carried the glochidia for a longer period from an August infestation. All the glochidia recovered 50 days after infestation, both from May and August infestations, had undergone metamorphosis. There was no difference in the degrees of infestation of the different species of fish used in our experiments. Pumpkinseed, Lepomis gibbosus (Linnaeus); rock bass, Ambloplites rupestris (Rafinesque); and white perch, Roccus americanus (Gmelin) lost their infestations in a week. Presumably no metamorphosis took place under these conditions. Black crappie, Pomoxis nigromaculatus (LeSueur); largemouth bass, Micropterus salmoides (Lacepede), smallmouth bass, M. dolomieui Lacepede: and yellow perch carried the infestation till they were killed 20 days later. There was no relationship between the numbers of glochidia (Lampsilis radiata) and copepods, (Ergasilus confusus Bere) on naturally infested yellow perch, nor on rock bass, smallmouth bass, and pumpkinseed which harbored Ergasilus spp. naturally and which were infested with the glochidia of L. r. siliquoidea experimentally.

Prey Selectivity by Age 0 White Perch (Morone americana) and Yellow Perch (Perca flavescens) in Laboratory Experiments

1991 ◽  
Vol 48 (4) ◽  
pp. 607-610 ◽  
Author(s):  
Donna L. Parrish ◽  
F. Joseph Margraf
Keyword(s):  
Optimal Foraging ◽  
Yellow Perch ◽  
Lake Erie ◽  
Laboratory Experiments ◽  
White Perch ◽  
Prey Size ◽  
Perca Flavescens ◽  
Species Assemblages ◽  
Morone Americana ◽  
Prey Selectivity

We conducted prey selectivity experiments by age 0 white perch (Morone americana) and yellow perch (Perca flavescens) in the laboratory. Lake Erie zooplankters were introduced into tanks where both fishes were in single and combined species assemblages. We identified and counted the introduced plankton samples and the contents of fish stomachs after the feeding period. Our results showed no differences in prey consumed within a fish species, whether in single or combined assemblages (ANOVA, p > 0.05). There were a few differences between white perch and yellow perch consumption of each prey taxa (ANOVA); however, the arrays of organisms eaten were not different (MANOVA, p > 0.01). We note that the majority of prey consumed were smaller taxa, which is counter to optimal foraging predictions in relation to prey size, but is consistent with other research on young planktivore prey selectivities.

scholarly journals Dynamics of One-Species Populations of Fishes in Ponds Subjected to Cropping and Additional Stocking

1970 ◽  
Vol 30 (1-8) ◽  
pp. 69-165
Author(s):  
Homer Buck ◽  
Charles F. Thoits
Keyword(s):  
Yellow Perch ◽  
Perca Flavescens ◽  
Single Species ◽  
Smallmouth Bass ◽  
Production Data ◽  
Fish Production ◽  
Pomoxis Annularis ◽  
Relationship Of ◽  
The Relationship ◽  
Related Population

This report is based on several years of intensive studies of the production and related population dynamics of six kinds of warmwater fishes maintained as single species in 1-acre ponds. Species involved included the largemouth bass, Micropteriis salmoides (Lacepede); smallmouth bass, M. dolomieiii Lacepede; bluegill, Lepomis macrochiriis Rafinesque; yellow perch, Perca flavescens (Mitchill); brown bullhead, Ictahiriis uebulosus (LeSueur); and the white crappie, Pomoxis annularis Rafinesque. Most production data published for these species have originated primarily from studies involving complex, multispecies populations. The principal aims of this investigation were to 1 ) increase our knowledge of the carrying capacities of ponds for warmwater fishes, 2) consider the relationship of carrying capacity to standing crop and to rate of production, and 3) measure the influence of controlled population increases and decreases on fish production.

scholarly journals The yellow perch (Perca flavescens) microbiome revealed resistance to colonisation mostly associated with neutralism driven by rare taxa under cadmium disturbance

2020 ◽  
Author(s):  
Bachar Cheaib ◽  
Hamza Seghouani ◽  
Martin Stephen Llewellyn ◽  
Katherine Vandal-Lenghan ◽  
Pierre-Luc Mercier ◽  
...  
Keyword(s):  
Community Assembly ◽  
Yellow Perch ◽  
Perca Flavescens ◽  
Microbial Interactions ◽  
Skin Microbiome ◽  
Free Living ◽  
Rare Taxa ◽  
Neutral Processes ◽  
Abundant Otus ◽  
The Impact

Abstract Background: Disentangling the dynamics of microbial interactions within communities improves our comprehension of metacommunity assembly of microbiota during host development and under perturbations. To assess the impact of stochastic variation of neutral processes on microbiota structure and composition under disturbance, two types of microbial habitats, free-living (water), and host-associated (skin and gut) were experimentally exposed to either a constant or gradual selection regime exerted by two sublethal cadmium chloride dosages (CdCl2). Yellow Perch (Perca flavescens) was used as a piscivorous ecotoxicological model. Using 16S rDNA gene based metataxonomics, quantitative metrics of water, skin and gut microbial communities were characterized along with development and across experimental conditions. Results: After 30 days, constant and gradual selection regimes drove a significant alpha diversity increase for both skin and gut microbiota. In the skin, pervasive negative correlations between taxa in both selection regimes in addition to the taxonomic convergence with the environmental bacterial community, suggest a loss of colonisation resistance resulting in the dysbiosis of yellow perch microbiota. Furthermore, the network connectivity in gut microbiome was exclusively maintained by rare (low abundance) OTUs, while most abundant OTUs were mainly composed of opportunistic invaders such as Mycoplasma and other genera related to fish pathogens such as Flavobacterium. Finally, the mathematical modelling of community assembly using both non-linear least squares models (NLS) and normalized stochasticity ratios (NST) based beta-diversity distances suggested neutral processes drove by taxonomic drift in host and water communities for almost all treatments. The NLS models predicted higher stochasticity in the cadmium-free host and water communities, however, NST models suggested higher stochasticity ratios under disturbance. Conclusions: Neutral models agree that water and host-microbiota assembly promoted by the occurrence frequence of rare taxa have evolved predominantly under neutral processes with potential involvement of deterministic forces sourced from host filtering and cadmium selection. The early signals of perturbations in the skin microbiome revealed antagonistic interactions by preponderance of negative correlations in the co-abundace networks. Our findings enhance our understanding of community assembly host-associated and free-living under anthropogenic selective pressure.

Branching complexity and morphological characteristics of coarse woody structure as lacustrine fish habitat

2005 ◽  
Vol 62 (9) ◽  
pp. 2110-2123 ◽  
Author(s):  
Michael G Newbrey ◽  
Michael A Bozek ◽  
Martin J Jennings ◽  
James E Cook
Keyword(s):  
Littoral Zone ◽  
Yellow Perch ◽  
Fish Habitat ◽  
Lepomis Macrochirus ◽  
Perca Flavescens ◽  
Morphological Characteristics ◽  
Smallmouth Bass ◽  
Micropterus Dolomieu ◽  
Rock Bass ◽  
Ambloplites Rupestris

The objective of this study was to quantify the physical characteristics of coarse woody structure (CWS) as fish habitat in a north temperate lake. Sixteen species of fish were observed in submerged CWS habitat. Branching complexity, distance above the bole, area below the bole, distance to other CWS, and water depth around CWS were significantly related to abundance of schooling cyprinids (Cyprinidae), rock bass (Ambloplites rupestris), smallmouth bass (Micropterus dolomieu), bluegill (Lepomis macrochirus), yellow perch (Perca flavescens), and walleye (Sander vitreus). Branching complexity was the most common characteristic of CWS related to richness, diversity, and total adult abundance of fish taxa, but was not correlated with the total lengths of fish found in submerged trees. Branching-complexity values ranged from 1 (simple) to 500 (moderately complex) in the littoral zone; for comparison, a living riparian conifer had a branching-complexity value of over 1000. Most CWS in the littoral zone was composed of simple trees without branching, but fish tended to inhabit CWS with branching-complexity values greater than 45. This study shows the importance of CWS with fine branching as littoral-zone fish habitat.

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