Population dynamics of yellow perch (Perca flavescens) and pumpkinseed (Lepomis gibbosus) in two acid-stressed lakes

1986 ◽  
Vol 30 (3-4) ◽  
pp. 611-617 ◽  
Author(s):  
J. Sun ◽  
H. H. Harvey
Keyword(s):  
Population Dynamics ◽  
Yellow Perch ◽  
Perca Flavescens ◽  
Lepomis Gibbosus

Epizootiology, pathology, and description of Eustrongylides tubifex (Nematoda: Dioctophymatoidea) in fish

1988 ◽  
Vol 66 (10) ◽  
pp. 2212-2222 ◽  
Author(s):  
Lena N. Measures
Keyword(s):  
Yellow Perch ◽  
Perca Flavescens ◽  
Infected Fish ◽  
Lepomis Gibbosus ◽  
Fourth Stage ◽  
Intermediate Hosts ◽  
Third Stage ◽  
Rock Bass ◽  
Ambloplites Rupestris ◽  
Fish Hosts

In Guelph Lake, a man-made reservoir in Ontario, Canada, prevalence of larval Eustrongylides tubifex in pumpkinseed (Lepomis gibbosus), rock bass (Ambloplites rupestris), and yellow perch (Perca flavescens) was 12.9% and mean intensity ranged from 1 to 1.8. Larvae were encapsulated on the mesentery of fish. Pumpkinseed and yellow perch were the important fish hosts in Guelph Lake as most larvae in these fish were alive. In contrast, 40% of larvae in rock bass were dead and calcified. Third- and fourth-stage larvae from naturally infected fish are described. Larvae in the three species of fish elicited a granulomatous inflammatory reaction. Attempts to transfer third-stage larvae from experimentally infected oligochaetes and third-stage larvae from naturally infected fish to laboratory-reared pumpkinseed were unsuccessful. Fourth-stage larvae from naturally infected fish were transferred successfully to pumpkinseed. Eutropic lakes such as Guelph Lake are particularly suitable enzootic areas because of the abundant populations of tubificid intermediate hosts and the presence of fish hosts such as pumpkinseed and perch. The advanced stage and development of larvae (to the fourth stage) in fish likely represents an adaptation for a parasite that occurs in a migratory host such as Common Mergansers (Mergus merganser), which frequent Guelph Lake for only about 1 month in spring and fall.

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.

Population Dynamics of Yellow Perch (Perca flavescens), Sauger (Stizostedion canadense), and Walleye (S. vitreum vitreum) in Four Main Stem Missouri River Reservoirs

1977 ◽  
Vol 34 (10) ◽  
pp. 1748-1763 ◽  
Author(s):  
William R. Nelson ◽  
Charles H. Walburg
Keyword(s):  
Population Dynamics ◽  
Reproductive Success ◽  
Yellow Perch ◽  
Perca Flavescens ◽  
Missouri River ◽  
Water Clarity ◽  
Water Levels ◽  
Spawning Habitat ◽  
Stream Flows ◽  
Stizostedion Canadense

Percid populations have generally increased in abundance relative to other groups of fishes in the 15–25 yr four large reservoirs have been operational on the Missouri River in South Dakota. Saugers (Stizostedion canadense) were initially the most abundant percid, but their numbers gradually declined, probably because of the reduction in river spawning habitat and the increase in water clarity. Yellow perch (Perca flavescens) increased to high population levels as the reservoirs filled but later decreased in abundance. Walleye (S. vitreum vitreum) populations were the slowest to develop in the reservoirs, probably because of initial lack of suitable spawning habitat; they later became well established.The yellow perch was one of the most important forage species in the reservoirs, and walleyes and saugers the primary predator and sport fishes. Sportfishing quality 15–25 yr after impoundment was good, but harvest remained low because of the large size of the reservoirs, inadequacy of facilities for anglers, and the relatively sparse human population. Reproductive success was the primary factor regulating the abundance of percids. Year-class strength was primarily determined by climatic rather than biological factors. Above-average precipitation presumably enhanced reproductive success, both directly by increasing the quantity and quality of spawning substrate through higher stream flows and water levels, and indirectly by providing a larger forage supply, thereby apparently reducing predation on young percids, as well as cannibalism. Kew words: Percidae, reservoirs, Missouri River, Stizostedion, Perca, population dynamics, ecology, precipitation, water level

Relative Selectivities of Miller High-Speed Samplers and Light Traps for Collecting Ichthyoplankton

1988 ◽  
Vol 45 (6) ◽  
pp. 993-998 ◽  
Author(s):  
R. S. Gregory ◽  
P. M. Powles
Keyword(s):  
High Speed ◽  
Yellow Perch ◽  
Perca Flavescens ◽  
Similarity Index ◽  
Lepomis Gibbosus ◽  
Light Traps ◽  
Active Sampling ◽  
Pumpkinseed Sunfish ◽  
High Uniformity ◽  
Percent Similarity

Comparative studies on the relative selectivities of Miller high-speed samplers and light traps in Chemung Lake, Ontario, were made over 29 "site-nights" from May 13 to June 25, 1982. Yellow perch (Perca flavescens), Iowa darter (Etheostoma exile), and pumpkinseed sunfish (Lepomis gibbosus) constituted 97.2% of the 4376 specimens collected. A percent similarity index indicated a high uniformity in the size and species composition of the catch (~70% for much of the study); similarity was least on the earliest sample date (May 13, 3.5%). Smaller darters (<6.0 mm total length) were excluded from the Miller sampler catch. We suggest that extrusion of prolarval and early postlarval darters through the tow nets is responsible for low percent similarity index values in early May. We propose that investigators consider a mixture of passive and active sampling techniques to alleviate existing selectivity biases.

Changes in Yellow Perch (Perca flavescens) Populations of Lake Michigan, 1954–75

1977 ◽  
Vol 34 (10) ◽  
pp. 1821-1829 ◽  
Author(s):  
LaRue Wells
Keyword(s):  
Population Dynamics ◽  
Growth Rates ◽  
Yellow Perch ◽  
Lake Michigan ◽  
Perca Flavescens ◽  
Commercial Production ◽  
Alosa Pseudoharengus ◽  
Exploitation Competition ◽  
Sport Fishery ◽  
High Production

In the early and mid-1960s the abundance of yellow perch (Perca flavescens) in Lake Michigan declined abruptly. The decline began in the northern part of the lake and spread progressively southward. Circumstantial evidence suggests that the nonnative alewife (Alosa pseudoharengus), by interfering with perch reproduction, was the primary cause of the decline. The alewife was first reported in northeastern Lake Michigan in 1949, and had become extremely abundant throughout the lake before an enormous die-off in 1967 reduced its numbers by an estimated 70%. An intensive fishery hastened the decline of perch. In most areas the decline was immediately preceded by a period of conspicuously high commercial production. This high production appears to have been related in part to increased growth rates of perch resulting from much lower density of younger fish. A sport fishery for perch in shallow water collapsed a few years before the species declined in abundance. The most logical explanation is that heavy concentrations of alewives physically displaced the perch from nearshore areas. Although perch populations increased in some areas in the 1970s, a full recovery is unlikely unless alewife numbers are further reduced. Key words: Percidae, Lake Michigan, Perca, population dynamics, exploitation, competition

Population Dynamics of Walleye (Stizostedion vitreum vitreum) and Yellow Perch (Perca flavescens) in Lake St. Clair, Especially During 1970–76

1977 ◽  
Vol 34 (10) ◽  
pp. 1869-1877 ◽  
Author(s):  
D. A. Johnston
Keyword(s):  
Population Dynamics ◽  
Yellow Perch ◽  
Drainage Basin ◽  
Age Distribution ◽  
Perca Flavescens ◽  
Past Century ◽  
Commercial Fishing ◽  
Stizostedion Vitreum ◽  
High Concentrations ◽  
The 1960S

The fish community in Lake St. Clair has remained fairly stable over the past century despite extensive shoreline modifications, a tenfold increase in population in the drainage area, and exploitation from commercial and recreational fisheries. The lake is productive because of its shallowness and fertile drainage basin. The flushing action of clean water from Lake Huron has restrained deterioration of habitat from euthrophication in most areas.Annual commercial fishery landings of walleye (Stizostedion vitreum vitreum) in the 1960s were five times greater than in the previous 50 yr. The larger catches were due, in part, to increased effort, but also reflect a real increase in the walleye population. In contrast, the sauger (S. canadense) declined in abundance through the 1950s and disappeared from commercial landings in the early 1960s. As commercial fishing in Ontario waters of Lake St. Clair was banned in 1970 due to the discovery of high concentrations of mercury in fishes, information on the percid populations was restricted to that obtained from index fishing. Between 1970 and 1976, in association with weak year-classes, the mean age of walleye increased from 2.9 to 5.8 yr. Direct correlations between year-class strength and environmental factors were not evident from the available data. Fishing pressure was reduced considerably after 1970 and is not considered to be an important factor in the low recruitment. The yellow perch (Perca flavescens) population showed no evidence of a change in age distribution during the 1970–76 period. The reasons for the reduction in walleye recruitment after 1970 are not clear, but it is possible that the succession of strong year-classes in the 1960s was exceptional and that the recruitment in the 1970s is closer to the normal condition for walleyes in Lake St. Clair. Key words: Percidae, Lake St. Clair percids, Stizostedion, Perca, population dynamics, exploitation, community ecology

Effect of Competition Between Two Freshwater Fishes on Prey Consumption and Abundance

1986 ◽  
Vol 43 (7) ◽  
pp. 1363-1372 ◽  
Author(s):  
John Mark Hanson ◽  
William C. Leggett
Keyword(s):  
Interspecific Competition ◽  
Intraspecific Competition ◽  
Littoral Zone ◽  
Yellow Perch ◽  
Perca Flavescens ◽  
Lepomis Gibbosus ◽  
Fish Biomass ◽  
Gut Fullness ◽  
Total Fish ◽  
Food Consumed

The effect of inter- and intraspecific competition on the type and quantity of food consumed by fish, and on the abundance of macroinvertebrate prey, was examined by manipulating densities of yellow perch (Perca flavescens) and pumpkinseed (Lepomis gibbosus) stocked into littoral zone enclosures at levels approximating 0.5, 1.0, and 2.0 times the measured total fish biomass on the littoral zone. In intraspecific competition experiments, neither species showed a change in the type of prey eaten (principally macroinvertebrates). The amount of food eaten by yellow perch reared at high (26 g/m2) densities was significantly depressed relative to that of perch reared at low (6.5 g/m2) and natural (13 g/m2) densities. There were no significant differences in the amount of food eaten by pumpkinseed at the three fish densities. The gut fullness of pumpkinseed reared at high densities, however, was biased to a significant but unknown degree by the inclusion of a nonfood item, macrophyte fragments, in the estimates. No other fish consumed macrophytes. In interspecific competition experiments, the gut fullness of yellow perch and pumpkinseed reared together (combined density 13 g/m2) did not differ from that of fish reared alone at low or natural densities. The diet (principally macroinvertebrates) of the superior competitor, pumpkinseed, did not change relative to that of pumpkinseed reared alone. The inferior competitor, yellow perch, exhibited a significant change in diet. Microcrustaceans (an energetically inferior food) comprised 30–53% of the diet (by weight) of yellow perch reared with pumpkinseed compared with < 1% of the diet of perch reared alone. Total macroinvertebrate biomass and abundance were unaffected by differences in fish biomass in the enclosures.

Observations on the biology of Ergasilus spp. (Cyclopoidea: Copepoda) infesting North American freshwater fishes

1969 ◽  
Vol 47 (3) ◽  
pp. 405-408 ◽  
Author(s):  
Shibru Tedla ◽  
C. H. Fernando
Keyword(s):  
Yellow Perch ◽  
Host Preference ◽  
Parasite Species ◽  
Perca Flavescens ◽  
Smallmouth Bass ◽  
Lepomis Gibbosus ◽  
Rock Bass ◽  
Egg Number ◽  
Ambloplites Rupestris ◽  
Immature Specimen

The gills of 118 yellow perch, Perca flavescens; 18 pumpkinseed, Lepomis gibbosus; 14 rock bass, Ambloplites rupestris; and 15 smallmouth bass, Micropterus dolomieui, were examined for Ergasilus spp. Ergasilus caeruleus was recovered for pumpkinseed and E. confusus from yellow perch. Rock bass and smallmouth bass were infested with E. centrarchidarum and one immature specimen of this species was recovered from a pumpkinseed. The host preference of each parasite species is discussed. A relationship between the egg number of copepods with more than one host and the degree of host preference is suggested.

Seasonal Succession of Free-Swimming Perciform Larvae in Lake Opinicon, Ontario

1974 ◽  
Vol 31 (10) ◽  
pp. 1661-1665 ◽  
Author(s):  
James R. Amundrud ◽  
Daniel J. Faber ◽  
Allen Keast
Keyword(s):  
Yellow Perch ◽  
Nest Site ◽  
Perca Flavescens ◽  
Seasonal Succession ◽  
Lepomis Gibbosus ◽  
Larval Abundance ◽  
Free Swimming ◽  
Warm Up ◽  
Pomoxis Nigromaculatus ◽  
Large Numbers

Free-swimming larvae of five perciform species were collected with tow nets in large numbers in Lake Opinicon from May to August of 1969 and 1970. The species appeared in the same seasonal sequence during the 2 yr: first yellow perch (Perca flavescens) followed by logperch (Percina caprodes), black crappies (Pomoxis nigromaculatus), and pumpkinseeds and bluegills (Lepomis gibbosus and L. macrochirus). Peaks of larval abundance, and also hatching, occurred earlier in 1970, when nest-site temperatures from early May to mid-June showed faster lake warm-up than in 1969.

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