scholarly journals Time-dependent biological responses of juvenile yellow perch (Perca flavescens) exposed in situ to a major urban effluent

2021 ◽  
Vol 222 ◽  
pp. 112483
Author(s):  
Michel A. Defo ◽  
Laurie Mercier ◽  
Conrad Beauvais ◽  
Robert B. Brua ◽  
Gerald Tétreault ◽  
...  
Keyword(s):  
Yellow Perch ◽  
Perca Flavescens ◽  
Time Dependent ◽  
Biological Responses ◽  
Urban Effluent

Studies on the heterophyid trematode Apophallus brevis, the "sand-grain grub" of yellow perch (Perca flavescens). II The metacercaria: position, structure, and composition of the cyst; hosts; geographical distribution and variation

1972 ◽  
Vol 50 (5) ◽  
pp. 577-584 ◽  
Author(s):  
Norman R. Sinclair
Keyword(s):  
North America ◽  
Blood Vessels ◽  
Site Selection ◽  
Yellow Perch ◽  
Geographical Variation ◽  
Perca Flavescens ◽  
Fish Bone ◽  
Cape Cod ◽  
Patchy Distribution

The metacercarial cyst of Apophallus brevis, the "sand-grain grub," is composed of fish bone within peripheral blood vessels of yellow perch (Perca flavescens) forming a tire-like structure; two escape canals are maintained opposite each other. In thin section, lines indicating interruption of growth apparently delimit annual incrementation as in scales and other bony structures of fish. Cysts are oriented with their long axes paralleling the long axis of a host's body with escape canals contiguous to walls of enclosing blood vessels. Cysts of A. brevis in situ at times appear partially or entirely pigmented but are actually transparent; pigmentation, when present, is a phenomenon of a cyst's position within certain types of blood vessels and is not an integral part of a cyst's construction. The organism as a metacercaria is almost exclusively a parasite of yellow perch (known deviations are noted) and is apparently confined to North America, having a known broad range from Saskatchewan to Cape Cod. Massachusetts. Distribution is extremely diffuse and appears dependent on patchy distribution of the organism's molluscan host, Amnicola limosa. Geographical variation in cyst site selection and clustering indicates some sort of intraspecies inhibition on the part of metacercariae of A. brevis.

Bioenergetic costs of heavy metal exposure in yellow perch (Perca flavescens): in situ estimates with a radiotracer (137Cs) technique

2000 ◽  
Vol 57 (2) ◽  
pp. 441-450 ◽  
Author(s):  
Graham D Sherwood ◽  
Joseph B Rasmussen ◽  
David J Rowan ◽  
Julie Brodeur ◽  
Alice Hontela
Keyword(s):  
Yellow Perch ◽  
Sublethal Effects ◽  
Perca Flavescens ◽  
Sublethal Effect ◽  
Toxicity Assessment ◽  
Fish Growth ◽  
Metal Exposure ◽  
Energetic Efficiency ◽  
Biological Organization

While the flow of energy is understood to determine the growth of organisms and the productivity of ecosystems, little is known about the sublethal effect of pollutants on the energetic efficiency of wild populations. We used field estimates of fish growth coupled to in situ estimates of food consumption rates obtained from the mass balance of a globally dispersed, trophically transferred radiotracer (137Cs) to demonstrate the bioenergetic impairment of yellow perch (Perca flavescens) from lakes polluted by heavy metals (Cd, Cu, and Zn). Annual growth increment relative to the total energy budget (conversion efficiency) was about three times lower in cortisol-impaired yellow perch from metal-polluted lakes relative to yellow perch from reference lakes (4.2% compared with 10.8%), suggesting that fish exposed to pollutants experienced greater total energetic costs. In addition, metal-polluted lakes were dominated by adult yellow perch populations and simplified prey bases, suggesting that effects are occurring at multiple levels of biological organization. Our in situ bioenergetic approach to toxicity assessment provides a measurable and ecologically relevant endpoint for assessing the sublethal effects of pollutants on fish communities.

Daily Ration of Yellow Perch (Perca flavescens) from Lake Memphremagog, Quebec–Vermont, with a Comparison of Methods for In Situ Determinations

1978 ◽  
Vol 35 (12) ◽  
pp. 1597-1603 ◽  
Author(s):  
Brian S. Nakashima ◽  
William C. Leggett
Keyword(s):  
Body Weight ◽  
Body Size ◽  
Yellow Perch ◽  
Diet Composition ◽  
Seasonal Pattern ◽  
Feeding Activity ◽  
Perca Flavescens ◽  
Complex Method ◽  
Daily Ration

In situ estimates of daily ration for yellow perch (Perca flavescens) range from a high of 5.5–6.7% body weight in July to a low of 2.2–2.4% body weight in October. The seasonal pattern corresponds well to known patterns of growth. Comparison of three methods for in situ determination of daily ration levels indicated the method outlined here and the more complex method of Thorpe yield similar results. The method of Keast and Welsh and derivatives of this method which correct for digestion between sampling periods give unreliable values that are 50% below the other two and, in general, are below maintenance ration levels. Diet composition and feeding activity varied seasonally and with body size. Key words: body size relationships, diet composition, seasonality

Metabolic Allometry of Larval and Juvenile Yellow Perch (Perca flavescens): In Situ Estimates and Bioenergetic Models

1990 ◽  
Vol 47 (3) ◽  
pp. 554-560 ◽  
Author(s):  
John R. Post
Keyword(s):  
Food Consumption ◽  
Yellow Perch ◽  
Prey Availability ◽  
Juvenile Fish ◽  
Perca Flavescens ◽  
Growth Dynamics ◽  
Model Simulations ◽  
Consumption Rates ◽  
Young Of The Year

Measurements of in situ food consumption and growth rates of young-of-the-year (YOY) yellow perch, Perca flavescens, indicated that extrapolations of the metabolic allometry of adult perch to larval and juvenile perch were inappropriate. YOY active metabolism had the same weight dependent slope as adults but was 4.4 times adult standard respiration. Adult active respiration is typically 1–2 times standard. YOY consumption rates were also higher than predicted from adult allometry. Model simulations demonstrate that consumption and growth dynamics of larval and juvenile fish are more sensitive to variation in temperature and prey availability than are adults.

Size-Dependent Overwinter Mortality of Young-of-the-Year Yellow Perch (Perca flavescens): Laboratory, In Situ Enclosure, and Field Experiments

1989 ◽  
Vol 46 (11) ◽  
pp. 1958-1968 ◽  
Author(s):  
John R. Post ◽  
David O. Evans
Keyword(s):  
Yellow Perch ◽  
Field Experiments ◽  
Perca Flavescens ◽  
Total Mortality ◽  
Small Fish ◽  
Selective Mortality ◽  
Size Dependent ◽  
Young Of The Year ◽  
Overwinter Mortality

In laboratory experiments, fed and starved young-of-the-year yellow perch (Perca flavescens) lost weight when kept under simulated overwinter temperature and photoperiod regimes, small fish losing a greater proportion of their mass than larger ones. Perch in fed and starved treatments suffered 1 and 46% mortality, respectively, mortality being higher among the smaller individuals. Winter duration was an important determinant of both total mortality and the intensity of size-selective mortality. Size-selective mortality also occurred in yellow perch from the same stock kept overwinter in an in situ lake enclosure with natural food. Fall and spring population estimates for two cohorts of young-of-the-year yellow perch from Lake St. George also indicated the occurence of size-selective overwinter mortality. We present a quantitative technique for identification of size-dependent mortality and size-dependent growth from sequential length frequency distributions. This technique allowed identification of overwinter size-selective mortality for five natural cohorts sampled in the field. Results from a stochastic simulation model, incorporating observed variability in both first year growth and winter duration suggest that overwinter starvation mortality can cause substantial variability in year-class strength that is independent of adult stock size.

An In Situ Experimental Evaluation of the Elliott and Persson and the Eggers Models for Estimating Fish Daily Ration

1988 ◽  
Vol 45 (1) ◽  
pp. 138-145 ◽  
Author(s):  
D. Boisclair ◽  
W. C. Leggett
Keyword(s):  
Confidence Intervals ◽  
Experimental Evaluation ◽  
Yellow Perch ◽  
Perca Flavescens ◽  
Sampling Frequency ◽  
Daily Ration ◽  
Fish Feeding ◽  
Feeding Periodicity ◽  
Sampling Event

We compared estimates of daily ration developed using the theoretically rigorous and logistically demanding Elliott and Persson model and the more easily applied Eggers model which is infrequently used because of its assumptions about rigid fish feeding periodicity. Comparisons were based on ten 24-h samplings of six different yellow perch (Perca flavescens) populations. Daily ration estimates from the two models did not differ significantly. This consistency occurred in spite of the fact that in some cases the observed feeding periodicity violated the assumptions of the Eggers model. A simulation model demonstrated that 95% confidence intervals were smallest for the Eggers estimates and that the Eggers model was more robust than the Elliott and Persson model to changes in both sampling frequency and number offish sacrificed at each sampling event. The latter proved particularly sensitive to changes in sampling frequency. We concluded that the two models provide estimates of daily ration comparable in magnitude and accuracy and consequently that the restriction of the Eggers model to fish with rigid feeding periodicity is not justified. Furthermore, the Eggers model, because of its robustness, reduces the sampling requirements to determine daily ration, and hence, permits its estimation on a more frequent basis.

In Situ Tests on Creep Behavior of Rock Mass with Joint or Shearing Zone in Foundation of Large-Scale Hydroelectric Projects

2004 ◽  
Vol 261-263 ◽  
pp. 1097-1102 ◽  
Author(s):  
Jian Liu ◽  
Xia Ting Feng ◽  
Xiu Li Ding ◽  
Huo Ming Zhou
Keyword(s):  
Rock Mass ◽  
Creep Behavior ◽  
Large Scale ◽  
Time Dependent ◽  
Three Gorges Project ◽  
Three Gorges ◽  
The Three Gorges ◽  
The Three Gorges Project

The time-dependent behavior of rock mass, which is generally governed by joints and shearing zones, is of great significance for engineering design and prediction of long-term deformation and stability. In situ creep test is a more effective method than laboratory test in characterizing the creep behavior of rock mass with joint or shearing zone due to the complexity of field conditions. A series of in situ creep tests on granite with joint at the shiplock area of the Three-Gorges Project and basalt with shearing zone at the right abutment of the Xiluodu Project were performed in this study. Based on the test results, the stress-displacement-time responses of the joints and basalt are analyzed, and their time-dependent constitutive model and model coefficients are given, which is crucial for the design to prevent the creep deformations of rock masses from causing the failure of the operation of the shiplock gate at the Three-Gorges Project and long-term stability of the Xiluodu arc dam.

Survival to hatching of fishes in sulfate-saline waters, Devils Lake, North Dakota

1995 ◽  
Vol 52 (3) ◽  
pp. 464-469 ◽  
Author(s):  
Todd M. Koel ◽  
John J. Peterka
Keyword(s):  
North Dakota ◽  
Sodium Sulfate ◽  
Yellow Perch ◽  
Hatching Success ◽  
Perca Flavescens ◽  
White Sucker ◽  
Catostomus Commersoni ◽  
Devils Lake ◽  
Common Carp Cyprinus Carpio ◽  
Species Survival

Laboratory-based bioassays were conducted to determine concentrations of sodium-sulfate type salinities that limit the hatching success of several fish species. Survival to hatching (SH) was significantly lower (P < 0.05) in sodium-sulfate type waters from Devils Lake, North Dakota, of ≥ 2400 mg/L total dissolved solids (TDS) than in fresh water of 200 mg/L. In waters of 200, 1150, 2400, 4250, and 6350 mg/L TDS, walleye (Stizostedion vitreum) SH was 41, 38, 7, 1, and 0%; northern pike (Esox lucius) SH was 92, 68, 33, 2, and 0%; yellow perch (Perca flavescens) SH was 88, 70, 73, 0, and 0%; white sucker (Catostomus commersoni) SH was 87, 95, 66, 0, and 0%; common carp (Cyprinus carpio) SH was 71, 69, 49, 63, and 25%.

Metabolic Stores of Yellow Perch (Perca flavescens): Comparison of Populations from an Acidic, Dystrophic Lake and Circumneutral, Mesotrophic Lakes

1992 ◽  
Vol 49 (12) ◽  
pp. 2474-2482 ◽  
Author(s):  
Jay A. Nelson ◽  
John J. Magnuson
Keyword(s):  
Yellow Perch ◽  
Egg Production ◽  
Glycogen Content ◽  
Physiological State ◽  
Perca Flavescens ◽  
Population Level ◽  
Seasonal Effects ◽  
Life History Strategies ◽  
Dystrophic Lake ◽  
Lipid Contents

Little is known about the animals that occupy naturally acidic habitats. To better understand the physiological state of animals from temperate, naturally acidic systems, we compared metabolite stores and meristics of two yellow perch (Perca flavescens) populations in northern Wisconsin. One population originated from a naturally acidic, dystrophic lake (Acid-Lake-Perch, ALP) and had previously been shown to have enhanced tolerance to low pH. The second population came from two nearby interconnected circumneutral, mesotrophic lakes (Neutral-Lake-Perch, NLP). Perch were collected throughout the year to account for seasonal effects and to discern whether patterns of metabolite utilization differed between populations. ALP had smaller livers containing less glycogen and greater muscle glycogen content than NLP. The ALP also had significantly greater liver and visceral lipid contents, and females from this population committed a greater fraction of their body mass to egg production. We interpret these results as indicative of physiological divergence at the population level in yellow perch. These results are discussed as possible products of H+ -driven changes in metabolism and as possible products of different life history strategies between populations. Our results also show that perch living in acidic, dystrophic Wharton Lake are not acid stressed.

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