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.

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.

Chronology, distribution, and sizes of larval fish sampled by light traps in macrophytic Chemung Lake

1985 ◽  
Vol 63 (11) ◽  
pp. 2569-2577 ◽  
Author(s):  
Robert S. Gregory ◽  
Perce M. Powles
Keyword(s):  
Common Carp ◽  
Yellow Perch ◽  
Larval Fish ◽  
Larval Abundance ◽  
Low Density ◽  
Light Traps ◽  
Resident Species ◽  
Emergence Period ◽  
Pumpkinseed Sunfish ◽  
Total Length

Light traps were used to assess larval abundance and chronology of appearance in Chemung Lake in 1982. Eleven of 21 resident species were captured, totalling 7234 individuals. The most abundant were yellow perch (2809), Iowa darter (2571), pumpkinseed sunfish (1288), bluntnose minnow (200), and carp (123). Iowa darter and pumpkinseed were taken only as prolarvae (yolk-sac larvae) and postlarvae, but yellow perch, from 5 to 33 mm total length, were attracted. Common carp and bluntnose minnow entered traps almost exclusively as prolarvae (6–13 mm and 6–12 mm total length, respectively). Perch had the shortest emergence period, May 6–12 (15–17 °C), followed by darters. May 9–31 (15–21 °C). Pumpkinseed and carp emerged over a 6-week period from June 3 to July 23 (16–25 °C). Perch prolarvae preferred shallow, high-density macrophyte areas; their postlarvae preferred deep, low-density macrophyte zones. All stages of larval darter selected shallow, macrophyte-dense regions, as did the young of pumpkinseed.

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.

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.

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%.

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