GROSS SIGNS OF TUMORS IN GREAT LAKES FISH: A MANUAL FOR FIELD BIOLOGISTS    

John J. Black
4734 East Boncrest Drive
Williamsville, New York  14221

   


TABLE OF CONTENTS  

LIST OF FIGURES

1. INTRODUCTION
1.1   Current questions regarding tumors in Great Lakes fish
1.2   Purpose of this manual
1.3   Fish as sentinel animals
1.4   Cancer in fish

2. PROCEDURES FOR NECROPSY AND TISSUE PREPARATION
2.1     Sampling
2.1.1   Live and dead fish
2.1.2  Numbers of fish and tissues
2.2    Necropsy equipment
2.3    Necropsy procedures
2.3.1  External examination
2.3.2 Internal examination
2.4    Tissue diagnosis
2.5    Tissue sampling
2.6    Fixation
2.7    Recording data
2.7.1   Written records
2.7.2   Tissue cassettes
2.7.3   Gross description of neoplasms

3. NEOPLASMS OF BROWN BULLHEADS (Amerius nebulosus)
3.1   Neoplasms of the skin and mouth
3.2   Neoplasms of the liver

4. NEOPLASMS OF WHITE SUCKERS (Catostomus commersoni) AND REDHORSE SUCKERS (Moxostoma sp.)
4.1   Neoplasms of the skin and mouth
4.2   Neoplasms of the liver
4.3   Neoplasms of the digestive tract

5. NEOPLASMS OF FRESHWATER DRUM (Aplodinotus grunniens)
5.1   Neoplasms of the skin
5.2   Neoplasms of the liver

6. NEOPLASMS OF YELLOW PERCH (Perca flavescens)
6.1   Neoplasms of the gonad

7. NEOPLASMS OF SAUGER (Stizostedion canadense) AND WALLEYE (Stizostedion vitreum)
7.1   Neoplasms of the skin
7.2   Neoplasms of the liver

8. NEOPLASMS OF CARP X GOLDFISH HYBRIDS (Cyprinus carpio X Carassius auratus)
8.1   Neoplasms of the gonad

9. NEOPLASMS OF NORTHERN PIKE (Esox lucius) AND MUSKELLUNGE (Esox masquinongy)
9.1   Neoplasms of the skin

10. MISCELLANEOUS NEOPLASMS
10.1   Thyroid Hyperplasia in coho salmon (Oncorhynchus kisutch) and pink salmon (Oncorhynchus gorbuscha)
10.2   Thymic lymphoma/lymphosarcoma of splake (Salvelinus namaycush X Salvelinus fontinalis)
10.3   Neural tumors
10.4   Neoplasms originating from fibroblasts or fibroblast-like cells
10.5   Kidney tumors

11. SURVEYS, DIAGNOSIS, AND REPORTING OF FISH CANCERS

12. GLOSSARY
 
13.  REFERENCES


LIST OF FIGURES

Figure 1.   White sucker prepared for examination of internal organs.
Figure 2.   Oral papillomas on the lips of brown bullhead.
Figure 3.   Epidermal hyperplasia and squamous cell carcinoma on a brown bullhead.
Figure 4  Melanomas on brown bullhead.
Figure 5  Cholangiolar carcinomas in the liver of brown bullhead.
Figure 6.   Lip and body neoplasms in white suckers.
Figure 7.   Cholangiolar and hepatocellular tumors in white suckers.
Figure 8  Confounding lesions in white sucker livers.
Figure 9.   Dermal neoplasms in freshwater drum.
Figure 10.  Testicular tumor in yellow perch.
Figure 11.  Dermal ossifying fibroma in walleye.
Figure 12.  Lymphocystis in walleye.
Figure 13.  Liver neoplasms in walleye.
Figure 14.  Gonadal neoplasms in carp X goldfish hybrids.
Figure 15.  Lymphosarcoma in northern pike and muskellunge.
Figure 16.  Thyroid hyperplasia in coho salmon.

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For More Information Contact:
 

Vic Cairns
Great Lakes Laboratory for Fisheries and Aquatic Sciences
Department of Fisheries and Oceans
867 Lakeshore Road
P.O. Box 5050


Burlington, ON L7R 4A6