Parasitic copepods Caligus lacustris (Copepoda: Caligidae) on the rainbow trout Oncorhynchus mykiss in cage aquaculture: morphology, population demography, and first insights into phylogenetic relationships
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Author
Parshukov, Aleksey
Vlasenko, Pavel
Simonov, Evgeniy
Ieshko, Evgeny
Burdukovskaya, Tatyana
Anikieva, Larisa
Kashinskaya, Elena
Andree, Karl B.
Solovyev, Mikhail
Publication date
2021-06-17ISSN
0932-0113
Abstract
Herein, data on rainbow trout infections with the copepod Caligus lacustris in cage aquaculture on Lake Ladoga is presented. Caligus lacustris (n = 127 ex.) were collected from a farm in Lake Ladoga housing cage-reared rainbow trout to describe the size–age and sex structure of the copepod population. Morphological features of the copepods were evaluated according to 10 characters with terminology proposed by Kabata and Gusev (J Linn Soc (Zool) 46(309):155–207, 1966). To determine the phylogenetic position of C. lacustris within the genus Caligus, fragments of the cytochrome c oxidase subunit 1 mitochondrial gene (COI, 645 bp) and 18S rRNA gene (1617 bp) were sequenced. An increase of parasite prevalence was observed as the lake was warming up from July to September. The morphological features of the crustacean’s larval and adult stages, characterized by specific parameters of quantitative traits, are described. Three COI haplotypes and only one 18S rRNA haplotype of C. lacustris were identified among five samples. Based on 18S rRNA analysis (resolution of the COI tree was poor), we can conclude that the clade containing C. lacustris, and the aforementioned sister species, appears as an early radiation of the genus Caligus. The development of freshwater aquaculture contributes to the transfer of the native parasite C. lacustris to farmed rainbow trout.
Document Type
Article
Document version
Accepted version
Language
English
Subject (CDU)
639 - Hunting. Fishing. Fish breeding
Pages
23
Publisher
Springer
Is part of
Parasitology Research
Citation
Parshukov, Aleksey, Pavel Vlasenko, Evgeniy Simonov, Evgeny Ieshko, Tatyana Burdukovskaya, Larisa Anikieva, Elena Kashinskaya, Karl B. Andree, and Mikhail Solovyev. 2021. "Parasitic Copepods Caligus Lacustris (Copepoda: Caligidae) On The Rainbow Trout Oncorhynchus Mykiss In Cage Aquaculture: Morphology, Population Demography, And First Insights Into Phylogenetic Relationships". Parasitology Research 120 (7): 2455-2467. doi:10.1007/s00436-021-07198-5.
Program
Aqüicultura
This item appears in the following Collection(s)
- ARTICLES CIENTÍFICS [2831]
Rights
Copyright © 2021, The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature