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1 October 1984 LIVER PATHOLOGY OF YELLOW PERCH, PERCA FLAVESCENS (MITCHILL), INFECTED WITH LARVAE OF THE NEMATODE RAPHIDASCARIS ACUS (BLOCH, 1779)
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Abstract

Larvae of the nematode Raphidascaris acus were found free or encapsulated in the liver of yellow perch. Blood vessels were distorted or destroyed during larval migrations and larvae were eventually encapsulated in a thick-walled whitish nodule. Successful walling-off of the parasite resulted in the formation of a collagenous nodule and a complete loss of the worm. No mortality of perch was associated with larval R. acus but the introduction of susceptible fishes into a lake harboring this parasite may be important in some stocking programs.

Poole and Dick: LIVER PATHOLOGY OF YELLOW PERCH, PERCA FLAVESCENS (MITCHILL), INFECTED WITH LARVAE OF THE NEMATODE RAPHIDASCARIS ACUS (BLOCH, 1779)
B. C. Poole and T. A. Dick "LIVER PATHOLOGY OF YELLOW PERCH, PERCA FLAVESCENS (MITCHILL), INFECTED WITH LARVAE OF THE NEMATODE RAPHIDASCARIS ACUS (BLOCH, 1779)," Journal of Wildlife Diseases 20(4), 303-307, (1 October 1984). https://doi.org/10.7589/0090-3558-20.4.303
Received: 28 February 1984; Published: 1 October 1984
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