Association of the Mytilid Musculus viator with the Invasive Tunicate Ascidiella aspersa in San Matías Gulf, Argentine Patagonia

IF 0.4 4区 生物学 Q4 MARINE & FRESHWATER BIOLOGY
C. Lazari, M. S. Doldan, Angélica Carignano, María Eugenia Orrego, E. Morsan
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引用次数: 3

Abstract

Abstract: Ascidiella aspersa (Muller, 1776) is an exotic tunicate species widely distributed along the Sud-Occidental Atlantic coasts. In Patagonia waters, it forms dense aggregations at El Sótano (San Matías Gulf). We report an undescribed association between this invasive tunicate and a native mytilid species, Musculus viator (d'Orbigny, 1842). During a benthic study, a total of 543 individuals of A. aspersa were collected at El Sótano. A total of 689 individuals of M. viator were extracted from the tunics of 42 A. aspersa specimens. A maximum of 50 mytilid per tunicate was found. No relationship was found between the size of the tunicates and the size of M. viator. The prevalence of M. viator on A. aspersa individuals suggested that the tunicate invasion might have altered the community structure by improving local physical conditions -alternative substrate or refuge- for mytilid populations.
阿根廷巴塔哥尼亚圣Matías湾海鞘海鞘与入侵海鞘海鞘的关联
摘要:Ascidiella aspersa (Muller, 1776)是一种广泛分布于大西洋南北海岸的外来被囊动物。在巴塔哥尼亚水域,它在El Sótano (San Matías海湾)形成密集的聚集。我们报道了一种未被描述的这种入侵被囊动物与一种本地myliids物种Musculus viator之间的关联(d'Orbigny, 1842)。在一项底栖动物研究中,在El Sótano共收集了543只a . aspersa个体。从42份石竹标本的被皮中,共提取了689只野田鼠。每束被囊最多发现50个蛹。未发现被囊动物的大小与海螺的大小有任何关系。该结果表明,被囊动物的入侵可能通过改善被囊动物种群的环境条件(替代底物或避难所)而改变了群落结构。
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来源期刊
CiteScore
1.00
自引率
40.00%
发文量
1
审稿时长
>12 weeks
期刊介绍: The American Malacological Bulletin serves as an outlet for reporting notable contributions in malacological research. Manuscripts concerning any aspect of original, unpublished research,important short reports, and detailed reviews dealing with molluscs will be considered for publication. Recent issues have included AMS symposia, independent papers, research notes,and book reviews. All published research articles in this journal have undergone rigorous peer review, based on initial editor screening and anonymous reviewing by independent expertreferees. AMS symposium papers have undergone peer review by symposium organizer, symposium participants, and independent referees.
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