Prevalence and Morphology of Eimeria gadi (Fiebiger, 1913) in the Haddock
SYNOPSIS. The coccidian parasite Eimeria gadi was found in the haddock, Melanogrammus aeglefinus , taken from the Nova Scotian fishing banks. The haddock infection rates ranged from a high of 58% on Emerald Bank to a low of 4% on Georges Bank, the average being 32%. There was no relationship between...
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crwiley:10.1111/j.1550-7408.1976.tb03842.x 2024-06-02T08:10:44+00:00 Prevalence and Morphology of Eimeria gadi (Fiebiger, 1913) in the Haddock ODENSE, P. H. LOGAN, V. H. 1976 http://dx.doi.org/10.1111/j.1550-7408.1976.tb03842.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1550-7408.1976.tb03842.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1550-7408.1976.tb03842.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor The Journal of Protozoology volume 23, issue 4, page 564-571 ISSN 0022-3921 journal-article 1976 crwiley https://doi.org/10.1111/j.1550-7408.1976.tb03842.x 2024-05-03T11:38:25Z SYNOPSIS. The coccidian parasite Eimeria gadi was found in the haddock, Melanogrammus aeglefinus , taken from the Nova Scotian fishing banks. The haddock infection rates ranged from a high of 58% on Emerald Bank to a low of 4% on Georges Bank, the average being 32%. There was no relationship between sex and degree or prevalence of infection. Although the probability of an occurrence of infection increased with size, small fish with heavy infections were observed. The degree of infection had no apparent effect on the condition factor (length/weight) of the fish. The infection rate reached a maximum in the fall of the year while the heaviest infections were observed in the spring. It is evident from the data that the infection is fatal. The parasite mass, appearing as a creamy viscous to a yellow semisolid material in the swimbladder, consisted of various parasite stages, fibrous and cellular debris, and lipid material. Some aspects of the sporocyst stage are described. No other gadoids from the Nova Scotian banks were found to be infected; however, a single specimen of the fourbeard rockling, Enchelyopus cimbrius , from St. John's, Newfoundland, was found to be heavily infected with E. gadi. Article in Journal/Newspaper Newfoundland Wiley Online Library The Journal of Protozoology 23 4 564 571 |
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Open Polar |
collection |
Wiley Online Library |
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crwiley |
language |
English |
description |
SYNOPSIS. The coccidian parasite Eimeria gadi was found in the haddock, Melanogrammus aeglefinus , taken from the Nova Scotian fishing banks. The haddock infection rates ranged from a high of 58% on Emerald Bank to a low of 4% on Georges Bank, the average being 32%. There was no relationship between sex and degree or prevalence of infection. Although the probability of an occurrence of infection increased with size, small fish with heavy infections were observed. The degree of infection had no apparent effect on the condition factor (length/weight) of the fish. The infection rate reached a maximum in the fall of the year while the heaviest infections were observed in the spring. It is evident from the data that the infection is fatal. The parasite mass, appearing as a creamy viscous to a yellow semisolid material in the swimbladder, consisted of various parasite stages, fibrous and cellular debris, and lipid material. Some aspects of the sporocyst stage are described. No other gadoids from the Nova Scotian banks were found to be infected; however, a single specimen of the fourbeard rockling, Enchelyopus cimbrius , from St. John's, Newfoundland, was found to be heavily infected with E. gadi. |
format |
Article in Journal/Newspaper |
author |
ODENSE, P. H. LOGAN, V. H. |
spellingShingle |
ODENSE, P. H. LOGAN, V. H. Prevalence and Morphology of Eimeria gadi (Fiebiger, 1913) in the Haddock |
author_facet |
ODENSE, P. H. LOGAN, V. H. |
author_sort |
ODENSE, P. H. |
title |
Prevalence and Morphology of Eimeria gadi (Fiebiger, 1913) in the Haddock |
title_short |
Prevalence and Morphology of Eimeria gadi (Fiebiger, 1913) in the Haddock |
title_full |
Prevalence and Morphology of Eimeria gadi (Fiebiger, 1913) in the Haddock |
title_fullStr |
Prevalence and Morphology of Eimeria gadi (Fiebiger, 1913) in the Haddock |
title_full_unstemmed |
Prevalence and Morphology of Eimeria gadi (Fiebiger, 1913) in the Haddock |
title_sort |
prevalence and morphology of eimeria gadi (fiebiger, 1913) in the haddock |
publisher |
Wiley |
publishDate |
1976 |
url |
http://dx.doi.org/10.1111/j.1550-7408.1976.tb03842.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1550-7408.1976.tb03842.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1550-7408.1976.tb03842.x |
genre |
Newfoundland |
genre_facet |
Newfoundland |
op_source |
The Journal of Protozoology volume 23, issue 4, page 564-571 ISSN 0022-3921 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1550-7408.1976.tb03842.x |
container_title |
The Journal of Protozoology |
container_volume |
23 |
container_issue |
4 |
container_start_page |
564 |
op_container_end_page |
571 |
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1800756651191435264 |