Population Biology of Yellow Perch in Southern Lake Michigan, 1971-79
Population Biology of Yellow Perch in Southern Lake Michigan, 1971-79

Author: LaRue Wells

Publisher:

Published: 1983

Total Pages: 28

ISBN-13:

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This study was based mainly on gill-net collections of yellow perch made during July and August 1971-79, in southern Lake Michigan at Grand Haven, Saugatuck, South Haven, Benton Harbor, and New Buffalo, Michigan; Michigan City and Gary, Indiana; Waukegan, Illinois; and Milwaukee, Wisconsin. Geographical abundance varied and were partly attributable to differences in fishing mortality.

Acute Toxicity of Six Forest Insecticides to Three Aquatic Invertebrates and Four Fishes
Acute Toxicity of Six Forest Insecticides to Three Aquatic Invertebrates and Four Fishes

Author: Herman O. Sanders

Publisher:

Published: 1983

Total Pages: 12

ISBN-13:

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Technical grade and field formulations of six experimental forest insecticides -- methomyl, carbaryl, aminocarb, trichlorfon, fenitrothion, and acephate -- were tested for acut toxicity against three species of aquatic invertebrates, (a daphnid, an amphipod, and larvae of a midge), and four species of fish (bluegill, rainbow trout, fathead minnow, channel catfish). Five of the six insecticides were highly toxic or extremely toxic to the daphnid, amphipod, and midge larvae. The sixth insecticide, acephate, was not toxic to invertebrates at concentrations up to 50 mg/L. Five of the insecticides ranged from highly toxic (methomyl to channel catfish) to relatively non-toxic (trichlorfon to fathead minnows); the sixth, acephate, was only slightly toxic to the fishes tested.

Fisheries and Wildlife Research
Fisheries and Wildlife Research

Author: U.S. Fish and Wildlife Service

Publisher:

Published: 1981

Total Pages: 206

ISBN-13:

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Report on activities in the Divisions of Cooperative Research, Cultural Methods Research, Population Ecology Research, and Population Regulation Research.

Forage Fishes in Marine Ecosystems
Forage Fishes in Marine Ecosystems

Author: Alaska Sea Grant College Program

Publisher: Alaska Sea Grant College Program

Published: 1997

Total Pages: 860

ISBN-13:

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Forage fishes are of particular concern in Alaska because lack of these prey fishes is most likely the cause of a dramatic decline in Steller sea lions, fur seals, and seabirds in the past 20 years. This book, the proceedings of the 1996 International Symposium on the Role of Forage Fishes in Marine Ecosystems, is organized around several themes: Fish biology, their role as predators and prey, causes of population fluctuations, assessment methods, and management. Fifty-six research contributions are included. Selected as an outstanding publication by the Journal of Government Communication.