Comparison of the infection levels of Lepeophtheirus salmonis (Copepoda) on chum salmon [Onchorhynchus keta] captured by two methods

The salmon louse Lepeophtheirus salmonis (Kroeyer, 1838) is a marine caligid parasite of most species of the genera Salmo and Oncorhynchus in the northern hemisphere. In Japan, it is believed that salmonids damaged by L. salmonis develop secondary bacterial injections when they are kept in fresh wat...

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Bibliographic Details
Published inGyoruigaku zasshi Vol. 32; no. 3; pp. 368 - 370
Main Author Nagasawa, K. (Hokkaido. Kushiro Fisheries Experiment Station (Japan))
Format Journal Article
LanguageEnglish
Published The Ichthyological Society of Japan 28.11.1985
Subjects
Brackish
COPEPODA
Freshwater
Lepeophtheirus salmonis
LINE FISHING
Marine
NET FISHING
Oncorhynchus keta
PACIFIC SALMON
PARASITE
PARASITES
PARASITOS
PECHE A LA LIGNE
PECHE AU FILET
PESCA CON LINEA
PESCA CON RED
SALMON DEL PACIFICO
SAUMON DU PACIFIQUE
INW, Japan
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Summary:The salmon louse Lepeophtheirus salmonis (Kroeyer, 1838) is a marine caligid parasite of most species of the genera Salmo and Oncorhynchus in the northern hemisphere. In Japan, it is believed that salmonids damaged by L. salmonis develop secondary bacterial injections when they are kept in fresh waters for maturation. Recently, this parasite has become an important pathogn in Norway. Although L. salmonis is commonly found on the skin of salmonids, little is known about its occurrence on salmonids in the ocean. This study was intented to compare the infection levels of L. salmonis on chum salmon, Oncorhynchus keta (Walbaum), captured with gillnets and longlines.
Bibliography:L72
8702104
ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:0021-5090
1884-7374
DOI:10.11369/jji1950.32.368