当前位置: X-MOL 学术J. Aquat. Anim. Health › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Prevalence and Intensity of Salmincola edwardsii in Brook Trout in Northwest New Brunswick, Canada
Journal of Aquatic Animal Health ( IF 1.2 ) Pub Date : 2020-03-01 , DOI: 10.1002/aah.10091
Carson F H White 1, 2 , Michelle A Gray 1, 2 , Karen A Kidd 3, 4 , Michael S Duffy 1, 5 , Jennifer Lento 1, 5 , Wendy A Monk 6
Affiliation  

Parasites can compromise the health and fitness of individual fish, and it is important to generate baseline information that can then be used to document changes in the abundance and distribution of potentially pathogenic parasites. The ectoparasitic copepod Salmincola edwardsii was assessed with respect to prevalence (percentage of infected fish per site), infection intensity (number of parasites per infected fish), and attachment location on Brook Trout Salvelinus fontinalis in northwest New Brunswick, Canada. Ten sample sites were assessed, with six sites on two streams in the Quisibis River basin and four sites on three streams in the Restigouche River basin. Parasite species identity was supported by 100% sequence identity with S. edwardsii in a variable region within 28S rDNA. The prevalence of fish infected per site ranged from 19.0% to 79.6%, with an overall prevalence of 48.5 ± 19.1% (mean ± SD) per site. Mean infection intensity was 1.5 ± 0.9 copepods/fish (range = 1-7), with parasites almost exclusively surrounding the dorsal fin and/or adipose fin (97.6%). There was no influence of trout age-class on parasite prevalence. Some fish presented with fin erosion at the site of parasite attachment (12.5%), and 6.2% also presented with hyperplastic skin lesions where no parasites were observed, that could be misinterpreted as secondary bacterial or fungal infections. Skin and fin damage were significantly more common when fish were infected with three or more individual parasites. The pathogenic potential of this parasite makes its presence noteworthy as a risk to salmonids that are both recreationally and ecologically important.

中文翻译:

Salmincola edwardsii 在加拿大新不伦瑞克西北部布鲁克鳟鱼中的流行率和强度

寄生虫会损害个体鱼类的健康和健康,因此生成基线信息很重要,这些信息随后可用于记录潜在致病寄生虫的丰度和分布的变化。在加拿大新不伦瑞克省西北部的 Brook Trout Salvelinus fontinalis 上,评估了外寄生桡足类动物 Salmincola edwardsii 的流行率(每个地点受感染鱼的百分比)、感染强度(每条受感染鱼的寄生虫数量)和附着位置。评估了 10 个样本点,其中 6 个站点位于 Quisibis 河流域的两条河流上,四个站点位于 Restiouche 河流域的三个河流上。寄生虫物种同一性得到 28S rDNA 可变区中与爱德华氏链球菌 100% 序列同一性的支持。每个地点的鱼类感染率从 19.0% 到 79% 不等。6%,每个站点的总体流行率为 48.5 ± 19.1%(平均值 ± SD)。平均感染强度为 1.5 ± 0.9 桡足类/鱼(范围 = 1-7),寄生虫几乎完全围绕背鳍和/或脂肪鳍(97.6%)。鳟鱼年龄等级对寄生虫流行没有影响。一些鱼在寄生虫附着部位出现鳍侵蚀 (12.5%),6.2% 还出现未观察到寄生虫的增生性皮肤病变,这可能被误解为继发性细菌或真菌感染。当鱼感染了三种或三种以上的寄生虫时,皮肤和鳍的损伤明显更为常见。这种寄生虫的致病潜力使其存在值得注意,因为它对具有娱乐和生态重要性的鲑鱼构成威胁。每个站点 1%(平均值 ± SD)。平均感染强度为 1.5 ± 0.9 桡足类/鱼(范围 = 1-7),寄生虫几乎完全围绕背鳍和/或脂肪鳍(97.6%)。鳟鱼年龄等级对寄生虫流行没有影响。一些鱼在寄生虫附着部位出现鳍侵蚀 (12.5%),6.2% 还出现未观察到寄生虫的增生性皮肤病变,这可能被误解为继发性细菌或真菌感染。当鱼感染了三种或三种以上的寄生虫时,皮肤和鳍的损伤明显更为常见。这种寄生虫的致病潜力使其存在值得注意,因为它对具有娱乐和生态重要性的鲑鱼构成威胁。每个站点 1%(平均值 ± SD)。平均感染强度为 1.5 ± 0.9 桡足类/鱼(范围 = 1-7),寄生虫几乎完全围绕背鳍和/或脂肪鳍(97.6%)。鳟鱼年龄等级对寄生虫流行没有影响。一些鱼在寄生虫附着部位出现鳍侵蚀 (12.5%),6.2% 还出现未观察到寄生虫的增生性皮肤病变,这可能被误解为继发性细菌或真菌感染。当鱼感染了三种或三种以上的寄生虫时,皮肤和鳍的损伤明显更为常见。这种寄生虫的致病潜力使其存在值得注意,因为它对具有娱乐和生态重要性的鲑鱼构成威胁。寄生虫几乎完全围绕背鳍和/或脂肪鳍(97.6%)。鳟鱼年龄等级对寄生虫流行没有影响。一些鱼在寄生虫附着部位出现鳍侵蚀 (12.5%),6.2% 还出现未观察到寄生虫的增生性皮肤病变,这可能被误解为继发性细菌或真菌感染。当鱼感染了三种或三种以上的寄生虫时,皮肤和鳍的损伤明显更为常见。这种寄生虫的致病潜力使其存在值得注意,因为它对具有娱乐和生态重要性的鲑鱼构成威胁。寄生虫几乎完全围绕背鳍和/或脂肪鳍(97.6%)。鳟鱼年龄等级对寄生虫流行没有影响。一些鱼在寄生虫附着部位出现鳍侵蚀 (12.5%),6.2% 还出现未观察到寄生虫的增生性皮肤病变,这可能被误解为继发性细菌或真菌感染。当鱼感染了三种或三种以上的寄生虫时,皮肤和鳍的损伤明显更为常见。这种寄生虫的致病潜力使其存在值得注意,因为它对具有娱乐和生态重要性的鲑鱼构成威胁。一些鱼在寄生虫附着部位出现鳍侵蚀 (12.5%),6.2% 还出现未观察到寄生虫的增生性皮肤病变,这可能被误解为继发性细菌或真菌感染。当鱼感染了三种或三种以上的寄生虫时,皮肤和鳍的损伤明显更为常见。这种寄生虫的致病潜力使其存在值得注意,因为它对具有娱乐和生态重要性的鲑鱼构成威胁。一些鱼在寄生虫附着部位出现鳍侵蚀 (12.5%),6.2% 还出现未观察到寄生虫的增生性皮肤病变,这可能被误解为继发性细菌或真菌感染。当鱼感染了三种或三种以上的寄生虫时,皮肤和鳍的损伤明显更为常见。这种寄生虫的致病潜力使其存在值得注意,因为它对具有娱乐和生态重要性的鲑鱼构成威胁。
更新日期:2020-03-01
down
wechat
bug