Food Habits of the Alewife, Alosa Pseudoharengus (Wilson), in Lake Michigan
Author: John Wilber Morsell
Publisher:
Published: 1968
Total Pages: 51
ISBN-13:
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Author: John Wilber Morsell
Publisher:
Published: 1968
Total Pages: 51
ISBN-13:
DOWNLOAD EBOOKAuthor: John W. Morsell
Publisher:
Published: 1968
Total Pages: 14
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DOWNLOAD EBOOKAuthor: Dennis A. Coleman
Publisher:
Published: 1976
Total Pages: 156
ISBN-13:
DOWNLOAD EBOOKAuthor: Steven E. Yeo
Publisher:
Published: 1978
Total Pages: 246
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DOWNLOAD EBOOKAuthor: Roger Robert Hlavek
Publisher:
Published: 1971
Total Pages: 160
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DOWNLOAD EBOOKAuthor: LaRue Wells
Publisher:
Published: 1980
Total Pages: 20
ISBN-13:
DOWNLOAD EBOOKStomachs of 1,064 alewives, 1,103 yellow perch, 246 spottail shiners, 288 trout-perch, 454 slimy sculpins, and 562 fourhorn sculpins from Lake Michigan were examined for food contents. Fish were sampled primarily from March to November and nearly all were caught at the bottom in the southeastern part of the lake near Saugatuck, Michigan. Pontoporeia was the most commonly reprented food item in the stomach contents of the fish examined, with immature midges, Mysis (a type of freshwater shrimp), copepods, cladocerans, fingernail clams and crayfish also being represented. Different species consumed different proportions of foods. Zooplankton was the principle food of alewives and spottail shiners, but was also consumed in small quantities by yellow perch and trout perch. Mysis was important to fourhorn sculpins, in addition to Pontoporeia. Immature midges were a major portion of spottail shiners and trout perch, also being consumed by alewives. Fish were often the most important food of yellow perch in the largest size category. Crayfish were a sizable portion of the diet of yellow perch on rocky bottoms, but sparingly on smooth bottoms. Spottail shiners also ate substantial numbers of fingernail clams.
Author: Mary D. Balcer
Publisher: Univ of Wisconsin Press
Published: 1984
Total Pages: 192
ISBN-13: 9780299098209
DOWNLOAD EBOOKResearchers, instructors, and students will appreciate this compilation of detailed information on the crustacean zooplankton of the Great Lakes. The authors have gathered data from more than three hundred sources and organized into a useful laboratory manual. The taxonomic keys are easy to use, suitable for both classroom and laboratory identifications. Detailed line drawings are provided to help confirm the identification of the major species. Zoologists, limnologists, hydrobiologists, fish ecologists, and those who study or monitor water quality will welcome this dependable new identification tool. A concise summary of pertinent information on the ecology of these zooplankton is provided in the main body of the text. A check-list of all species reported from each of the Great Lakes and notes on the distribution and abundance of more than a hundred species were compiled from an extensive search of existing literature. In addition, the authors collected samples from several locations on Lake Superior, in order to provide information on the abundance and life histories of the major crustacean species.
Author:
Publisher:
Published: 1980
Total Pages: 528
ISBN-13:
DOWNLOAD EBOOKAuthor:
Publisher:
Published: 1980
Total Pages: 216
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DOWNLOAD EBOOKAuthor: U.S. Fish and Wildlife Service. Office of Biological Services
Publisher:
Published: 1982
Total Pages: 740
ISBN-13:
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