Demographic and genetic structure of the quagga mussel, Dreissena rostriformis bugensis, in the Moselle River ten years after first observation

IF 2.2 3区 环境科学与生态学 Q2 ECOLOGY Aquatic Invasions Pub Date : 2023-06-28 DOI:10.3391/ai.2023.18.2.105436
Nicolas Trunfio, T. Bournonville, N. Debortoli, J. Marescaux, G. Nogaro, J. Beisel
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引用次数: 1

Abstract

The quagga mussel (Dreissena rostriformis bugensis) was first recorded in France in the Moselle River in 2011. The objective of this study was to obtain a better understanding of the species’ demographic and genetic structure ten years after its first observation. To do this, we examined quagga mussel (i) relative abundance/biomass (compared with the zebra mussel (Dreissena polymorpha), (ii) population structure, and (iii) genetic structure along the navigable stretch of the Moselle during four sampling events conducted between May 2021 and May 2022. The results indicate that, while zebra mussels are still the dominant species (ca. 2/3 of all dreissenid species), quagga mussels represent, on average, 60% of dreissenid biomass. A typical quagga population was composed of five different cohorts with wide, overlapping size ranges, suggesting that the mussels breed for much of the year. Growth in quagga mussel shell length was at least 1.4× greater than that for zebra mussels, regardless of season, with no interruption in growth observed during winter. Unlike zebra mussels, we failed to record any small quagga individuals (4–14 mm shell length) in our samples, possibly indicating high mortality induced by selective predation by invasive round gobies Neogobius melanostomus. Genetically, the three Moselle quagga mussel populations examined were highly homogeneous among themselves (based on microsatellite analysis), and very similar to those found elsewhere in Europe (diversity of CO1 haplotypes). A comparison with previous data suggests that the Moselle quagga population comprises haplotypes introduced over several successive introduction waves, a process that may continue in the future.
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Demographic和在摩泽尔河第一次观察十年后的白斑贻贝的遗传结构
2011年,在法国的摩泽尔河中首次发现了斑驴贻贝(Dreissena rostriformis bugensis)。这项研究的目的是在首次观察十年后更好地了解该物种的人口统计和遗传结构。为此,我们在2021年5月至2022年5月期间进行了四次采样,研究了沿摩泽尔河可通航段的斑贝(i)相对丰度/生物量(与斑马贻贝(Dreissena polymorpha)相比),(ii)种群结构和(iii)遗传结构。结果表明,斑马贻贝仍然是优势物种(约占所有德莱森类物种的2/3),斑马贻贝平均占德莱森类生物量的60%。一个典型的斑驴种群由五个不同的群体组成,它们的大小范围很宽,重叠,这表明贻贝在一年中的大部分时间里都在繁殖。无论季节如何,斑驴贻贝的生长长度至少是斑马贻贝的1.4倍,在冬季没有观察到生长中断。与斑马贻贝不同,我们的样本中没有记录到任何小斑驴个体(壳长4-14 mm),这可能表明入侵的圆形虾虎鱼Neogobius melanostomus选择性捕食导致了高死亡率。遗传上,三个被检测的摩泽尔斑马贻贝种群之间高度同质(基于微卫星分析),与欧洲其他地方发现的种群非常相似(CO1单倍型多样性)。与先前数据的比较表明,摩泽尔斑驴种群由几次连续的引进浪潮中引入的单倍型组成,这一过程可能会在未来继续。
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来源期刊
Aquatic Invasions
Aquatic Invasions ECOLOGY-MARINE & FRESHWATER BIOLOGY
CiteScore
4.30
自引率
0.00%
发文量
20
审稿时长
6-12 weeks
期刊介绍: Aquatic Invasions is an open access, peer-reviewed international journal focusing on academic research of biological invasions in both inland and coastal water ecosystems from around the world. It was established in 2006 as initiative of the International Society of Limnology (SIL) Working Group on Aquatic Invasive Species (WGAIS) with start-up funding from the European Commission Sixth Framework Programme for Research and Technological Development Integrated Project ALARM. Aquatic Invasions is an official journal of International Association for Open Knowledge on Invasive Alien Species (INVASIVESNET). Aquatic Invasions provides a forum for professionals involved in research of aquatic non-native species, including a focus on the following: • Patterns of non-native species dispersal, including range extensions with global change • Trends in new introductions and establishment of non-native species • Population dynamics of non-native species • Ecological and evolutionary impacts of non-native species • Behaviour of invasive and associated native species in invaded areas • Prediction of new invasions • Advances in non-native species identification and taxonomy
期刊最新文献
Horizon scanning for potentially invasive non-native marine species to inform trans-boundary conservation management – Example of the northern Gulf of Mexico Models based on chronological data correctly predict the spread of freshwater aliens, and reveal a strong influence of river access, anthropogenic activities and climate regimes Dietary habits change of Lessepsian migrants’ fish from the Red Sea to the Eastern Mediterranean Sea Size-dependent functional response of the round goby Neogobius melanostomus; implications for more accurate impact potential calculation Early stage of invasion of the quagga mussel (Dreissena rostriformis bugensis) within the interconnected lakes Lough Ree and Lough Derg of the Shannon River system, Ireland
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