Parasite co-infection of two sympatric bivalves, the Manila clam (Ruditapes philippinarum) and the cockle (Cerastoderma edule) along a latitudinal gradient
Parasite co-infection of two sympatric bivalves, the Manila clam (Ruditapes philippinarum) and the cockle (Cerastoderma edule) along a latitudinal gradient
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两种同域双壳类动物马尼拉蛤 (Ruditapes philippinarum) 和鸟蛤 (Cerastoderma edule) 沿纬度梯度的寄生虫共同感染
DOI：
10.1051/alr:2007013
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发表时间：
2007
影响因子：
1.1
通讯作者：
C. Paillard
中科院分区：
文献类型：
--
作者：
G. Lassalle;X. Montaudouin;P. Soudant;C. Paillard
在影响种群动态的潜在生物因素中，寄生性受到的关注相对较少。本研究的目的是清点海洋双壳类寄生虫并调查不同寄生虫群落之间的关系。研究人员对法国大西洋沿岸布列塔尼和阿卡雄湾之间的五个潮间带站进行了研究。对两种双壳类动物（食用鸟蛤、Cerastoderma edule 和马尼拉蛤、Ruditapes philippinarum）进行了取样和检查。这些寄生虫包括细菌（Vibrio Taptis）、原生动物（Perkinsus sp.）和双遗传吸虫囊蚴（10 种）。帕金瑟斯 sp。蛤中的流行率和密度均高于鸟蛤（鳃湿重分别为 30 250 和 36 个细胞 g -1），而双殖蚴在鸟蛤中更为常见（每个蛤寄主有 46 个囊蚴，而每个蛤寄主有 1 个囊蚴）。 Digeneans 和 Perkinsus sp 的分布。大西洋沿岸的情况也类似。然而，在每个采样站和个体尺度上，Perkinsus sp.之间没有相关性。并检测到双系丰度。这些结果表明，这两种寄生虫在双壳类群落中使用不同的生态位，但对温度和盐度等环境因素的反应相似。在所有监测站中，两种双壳类物种的带状弧菌的患病率相对较高（鸟蛤为 17% 至 43%，蛤为 23% 至 50%），但与褐环病 (BRD) 的患病率较低有关，褐环病是一种由该病原体引起的贝壳疾病。这些寄生细菌与吸虫和Perkinsus sp没有统计学上的显着关系。在本研究中得到了证明。
Among the potential biotic factors affecting population dynamics, parasitism has received relatively little attention. The purpose of this study was to inventory marine bivalve parasites and to investigate relations between dif- ferent parasite communities. Five intertidal stations along the French Atlantic shore were studied between Brittany and Arcachon Bay. Two bivalves (the edible cockle, Cerastoderma edule, and the Manila clam, Ruditapes philippinarum) were sampled and examined. The parasites included a bacterium (Vibrio tapetis), a protozoan (Perkinsus sp.), and di- genetic trematode metacercariae (10 species). Perkinsus sp. prevalence and density in clams were higher than those measured in cockles (30 250 vs. 36 cells g −1 of gill wet weight, respectively) while digeneans were more common in cockles (46 metacercariae per cockle host vs. 1 per clam host). Distributions of digeneans and Perkinsus sp. were similar along the Atlantic shore. However, at each sampling station and at the individual scale, no correlation between Perkinsus sp. and digenean abundance was detected. These results suggest different ecological niches used by these two parasites within a community of bivalves but a similar response to environmental factors such as temperature and salinity. Vibrio tapetis was found at relatively high prevalence in all stations for both bivalve species (from 17% to 43% in cockles and from 23% to 50% in clams), but was associated with a low prevalence of Brown Ring Disease (BRD), a shell disease caused by this pathogen. No statistically significant relationship of these parasitic bacteria with trematodes and Perkinsus sp. was evidenced in the present study.
影响因子：
1.3
作者：
MARGOLIS, L;ESCH, GW;SCHAD, GA
通讯作者：
SCHAD, GA