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首页> 外文期刊>Journal of Parasitology >THE DIVERSITY OF SEA LICE (COPEPODA: CALIGIDAE) PARASITIC ON THREESPINE STICKLEBACK (GASTEROSTEUS ACULEATUS) IN COASTAL BRITISH COLUMBIA
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THE DIVERSITY OF SEA LICE (COPEPODA: CALIGIDAE) PARASITIC ON THREESPINE STICKLEBACK (GASTEROSTEUS ACULEATUS) IN COASTAL BRITISH COLUMBIA

机译：沿海不列颠哥伦比亚省的三脊ST（麻疯树）寄生的海虱（COPEPODA：CALIGIDAE）的多样性

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摘要

The prevalence, intensity, and abundance of sea lice belonging to Lepeophtheirus or Caligus clemensi are reported from threespine stickleback (Gasterosteus aculeatus) collected from the Broughton Archipelago region of coastal British Columbia, Canada, between 2005 and 2008. In total, 25,130 sea lice were collected from 7,684 sticklebacks. The prevalence of Lepeophtheirus ranged from 51% in 2005 to 11% in 2008 and that of C clemensi from 56% in 2007 to 24% in 2008. Chalimus stages accounted for approximately 69% of all Lepeophtheirus and 88% of Caligus specimens. Cytochrome c oxidase subunit 1 (COI) gene sequences, useful in distinguishing reference specimens belonging to 8 species of Lepeophtheirus, Caligus, and Bomolochus, were used to identify the Lepeophtheirus specimens from stickleback as L. salmonis (71%) and L. cuneifer (29%). A COI phylogenetic analysis confirmed a monophylogenetic origin of Lepeophtheirus but not of Caligus. Two genotypes were resolved in L. cuneifer, i.e., genotype A occurred twice as often as genotype B. Virtually all immature Lepeophtheirus specimens from juvenile salmon were L. salmonis. The results emphasized the need to accurately identify immature sea lice as a prerequisite to understanding sea lice ecology. The threespine stickleback may be a useful sentinel species for the abundance and diversity of the sea lice that are also parasites of wild and farmed salmon in coastal ecosystems in British Columbia.
机译：据报道，2005年至2008年之间，从加拿大不列颠哥伦比亚省沿海的布劳顿群岛地区采集的三脊刺背back（Gasterosteus aculeatus）报道了属于Lepeophtheirus或Caligus clemensi的海虱的流行，强度和丰富度。总共有25,130头海虱被检出。从7,684棘鱼中收集。麻疯树的患病率从2005年的51％到2008年的11％不等，而C clemensi的患病率从2007年的56％到2008年的24％不等。Chalimus阶段约占所有麻疯树的69％和Cali鱼的88％。细胞色素c氧化酶亚基1（COI）基因序列可用于区分属于8个Lepeophtheirus，caligus和Bomolochus的参考标本，用于从棘背鱼中鉴定出鲑鱼L.salmonis（71％）和C. cuneifer（ 29％）。 COI系统发育分析证实了麻风树属的单一系统发生起源，但不是卡利格斯。 L. cuneifer中解析了两种基因型，即，基因型A的发生频率是基因型B的两倍。几乎所有来自幼鲑的未成熟Lepeophtheirus标本均为鲑鱼。结果强调了准确识别未成熟海虱的必要性，这是理解海虱生态学的前提。三脊背棘背鲷可能是有用的前哨物种，可用于海虱的丰富和多样性，海虱也是不列颠哥伦比亚省沿海生态系统中野生鲑鱼和养殖鲑鱼的寄生虫。

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