Aquatic Invasions最新文献

{"title":"Spines and surplus: existing inducible defenses and abundant resources may reduce the impacts of Cercopagis pengoi on a likely prey species","authors":"Stephanie Figary, K. Schulz","doi":"10.3391/ai.2021.16.3.05","DOIUrl":"https://doi.org/10.3391/ai.2021.16.3.05","url":null,"abstract":"","PeriodicalId":8119,"journal":{"name":"Aquatic Invasions","volume":"97 1","pages":""},"PeriodicalIF":1.6,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85775078","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Differences in diet compositions and feeding strategies of invasive round goby Neogobius melanostomus and native black goby Gobius niger in the Western Baltic Sea","authors":"S. Matern, J. Herrmann, A. Temming","doi":"10.3391/AI.2021.16.2.07","DOIUrl":"https://doi.org/10.3391/AI.2021.16.2.07","url":null,"abstract":"The round goby Neogobius melanostomus (Pallas, 1814) is a global invader that has become established in the Baltic Sea and expands its geographic range further west. Native in the Baltic Sea, the black goby Gobius niger Linnaeus, 1758 occupies a similar ecological niche as the round goby. To investigate a potential dietary overlap, we sampled eleven locations between Travemünde and Flensburg by angling. We caught round goby in the coastal areas of the Lübeck Bight, Fehmarnsund and Kiel Fjord, while black goby were caught at all sampling sites except Travemünde. Individuals of round goby and black goby from all sites, except Kappeln, were kept for stomach content analyses. The diet analyses revealed round goby in the Western Baltic to mainly prey on either barnacles or mollusks. Black goby had a broader prey spectrum including large amounts of crustaceans, annelids and mollusks. Furthermore, we revealed some black goby individuals to be specialized on fish. The dietary overlap between the two goby species was low and suggests that the absence of black goby in Travemünde cannot be referred to competition for food with round goby.","PeriodicalId":8119,"journal":{"name":"Aquatic Invasions","volume":"33 1","pages":"314-328"},"PeriodicalIF":1.6,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77784798","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Invasion and current distribution of the octocoral Carijoa riisei (Duchassaing & Michelotti, 1860) in the Ecuadorian coast (Eastern Tropical Pacific)","authors":"M. Cárdenas-Calle, Julián Pérez-Correa, Cecilia Uzca-Sornoza, G. Bigatti, N. Diez, M. Lozada, J. Coronel, Ileana Herrera, Gladys Torres, T. D. L. Cuadra, Fernando Espinoza, J. Mair, I. Keith","doi":"10.3391/AI.2021.16.1.05","DOIUrl":"https://doi.org/10.3391/AI.2021.16.1.05","url":null,"abstract":"Carijoa riisei is a snowflake coral that has aggressively spread across many coastal habitats in the Atlantic and Pacific oceans, threatening a number of tropical ecosystems worldwide, including coral reefs. The aim of this work was to evaluate the distribution and provide an estimation of abundance of the invasive octocoral C. riisei along the Ecuadorian coast, as well as the relationship between its abundance and different environmental variables. In a field survey, high abundances of C. riisei colonies were reported growing over corals and sessile communities at 5 of 43 sampling sites. The areas with highest relative abundance were found in the Manabí province, at two sites in Jama: Bajo Londres (44.57% coverage) and Vaca Brava 1 (20.25%). Results of ordination and grouping statistical analyses showed no significant differences between invaded and not invaded sites as regards community composition or environmental characteristics, suggesting neither biotic nor abiotic factors could be limiting C. riisei dispersal along the Ecuadorian coast. Results from a bibliographic survey covering occurrence data up to 2020 were in accordance, showing that in that period C. riisei became an established species to the Ecuadorian coast, being present in at least 22 of the 43 sites, including various sites in Marine Protected Areas. Based on these findings, recommendations are made to promote urgent monitoring programs to detect C. riisei in new areas along the coast of Ecuador and in the Galapagos Marine Reserve, in order to develop a mitigation program and to take actions to conserve the ecosystems affected by this invasion.","PeriodicalId":8119,"journal":{"name":"Aquatic Invasions","volume":"34 1","pages":"62-76"},"PeriodicalIF":1.6,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73351864","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Recovery of the ruffe (Gymnocephalus cernua) population after an invasion boom of round goby (Neogobius melanostomus) in De Gijster Lake (the Netherlands)","authors":"T. Jůza, P. Blabolil, Daniel C. Barton, Martin Čech, V. Draštík, J. Frouzová, M. Holubová, H. Ketelaars, Luboš Kočvara, J. Kubečka, M. Muška, M. Prchalová, M. Říha, Zuzana Sajdlová, M. Šmejkal, M. Tušer, M. Vašek, L. Vejřík, I. Vejříková, A. Wagenvoort, J. Peterka","doi":"10.3391/ai.2021.16.3.07","DOIUrl":"https://doi.org/10.3391/ai.2021.16.3.07","url":null,"abstract":"Studies dealing with invasive species usually focus on changes caused by invasion, however, natural recovery of the system after the initial population explosion (boom) has been much less studied. Ruffe dominated the benthic fish community in De Gijster Lake (Biesbosch National Park, the Netherlands) before a round goby invasion indicated by catches in both seines and gillnets. In 2012, the round goby was found for the first time and it was observed to undergo a boom in 2014, when ruffe almost completely disappeared. Nevertheless, gillnet sampling in 2016 indicated a decreasing trend in the number of round gobies and an increase in ruffe. These changes were confirmed during monitoring in 2019, when the density of round goby decreased seven times in comparison with 2014 indicated both in seine and gillnet catches. At the same time, the dens ity of ruffe increased six times in gillnets and from zero to 396 ind/ha in seine catches. Densities of both species were clearly negatively correlated and the approximate theoretical threshold-values for coexistence of both species were estimated as 750 i nd/ha in the littoral zone and 120 –140 ind/1000 m 2 of standard CEN gillnets. Our results show the recovery of a native fish population after a natural decline of the invasive species density, which could be important when considering the management of invasive species.","PeriodicalId":8119,"journal":{"name":"Aquatic Invasions","volume":"54 1","pages":""},"PeriodicalIF":1.6,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76276064","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Physiological and microbiological determinants of the subtropical non-indigenous Rangia cuneata health and condition in the cold coastal waters of the Baltic Sea: the Vistula Lagoon case study","authors":"Justyna Świeżak, K. Smolarz, A. Michnowska, A. Świątalska, A. Sobczyk, R. Kornijów","doi":"10.3391/ai.2021.16.4.05","DOIUrl":"https://doi.org/10.3391/ai.2021.16.4.05","url":null,"abstract":"","PeriodicalId":8119,"journal":{"name":"Aquatic Invasions","volume":"42 3 1","pages":""},"PeriodicalIF":1.6,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76635517","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Metabarcoding for bacterial diversity assessment: looking inside Didymosphenia geminata mats in Patagonian aquatic ecosystems","authors":"Ana V. Suescún, K. Martinez-Cruz, M. Barret, L. Cárdenas","doi":"10.3391/AI.2021.16.1.04","DOIUrl":"https://doi.org/10.3391/AI.2021.16.1.04","url":null,"abstract":"The number of organisms that spread and invade new habitats has increased in recent decades as a result of drastic environmental changes such as climate change and anthropogenic activities. Microbial species invasions occur worldwide in terrestrial and aquatic systems and represent an emerging challenge to our understanding of the interplay between biodiversity and ecosystem functioning. Due to the difficulty of detecting and evaluating non-indigenous microorganisms, little is known about them and the processes that drive successful microbial invasions – especially when compared to macroinvasive species. Microalgae are one of the most abundant microorganisms in aquatic systems, and some are able to produce massive proliferations (mats) with significant impact on biodiversity and economic activities. Among microalgae invaders, Didymosphenia geminata is a benthic diatom that constitutes a major global threat for freshwater ecosystem conservation. Despite two decades of research, the cause of mat proliferations remains uncertain. It has been proposed that bacterial biofilm composition may contribute to successful attachment and consequently to proliferation. The aim of this work was to assess the bacterial diversity associated with the mat-forming diatom D. geminata in three aquatic ecosystems of the Chilean Patagonia by implementing genomic-based tools. Using a metabarcoding approach, we determined a core microbiota represented by 4 phyla, 16 families, and 20 genera. Proteobacteria (Alpha and Beta) and Bacteroidetes were the dominant phyla, followed by Cyanobacteria and Planctomycetes. At the lower taxonomic level, unidentified genera from the Comamonadacea family were the most abundant bacteria of the core microbiota. The bacterial composition we found was very similar, with some relative abundance changes, to that reported in a previous study of the bacterial diversity of biofilms from rivers contaminated with D. geminata in New Zealand. This geographical co-occurrence pattern between bacteria and D. geminata in different independent studies suggests that a specific microbiota may be associated with D. geminata distributions, establishment and proliferation. Our work serves as the starting point to design an experimental study that aims to determine whether these specific bacteria facilitate the establishment of the microalgae by creating favorable conditions or are the result of the diatom invasion.","PeriodicalId":8119,"journal":{"name":"Aquatic Invasions","volume":"110 1","pages":"43-61"},"PeriodicalIF":1.6,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80970438","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"To fit or to belong: characterization of the non-native invader Eurytemora carolleeae (Copepoda: Calanoida) in the Oder River system (Central Europe)","authors":"Ł. Sługocki, A. Rymaszewska, L. Kirczuk","doi":"10.3391/ai.2021.16.3.04","DOIUrl":"https://doi.org/10.3391/ai.2021.16.3.04","url":null,"abstract":"The Eurytemora affinis species complex (Copepoda: Calanoida) is widespread in coastal and estuarine waters in the northern hemisphere. The species Eurytemora carolleeae belongs to this complex. It was recently d escribed and recognized as an invasive copepod for European waters. Since then, it was found in a few European estuaries. Based on molecular and morphological studies, we observed that E. carolleeae has expanded into new freshwater habitats in Central Europe. We carried out detailed morphological analysis for this species which indicates the potential higher stability of the populations in freshwater habitats compared to brackish waters. Fluctuating asymmetry did not significantly differ between freshwater and brackish water habitats, but the share of deformed specimens was considerably larger in brackish waters. We also found that season and habitat influenced the morphology of Eurytemora . In the molecular analyses, we focused on mitochondrial (COI) as well as nuclear gene markers (18S rDNA, ITS1 -2) in E. carolleeae . In addition, for the first time, we analyzed the cytochrome b gene of the latter species. A wide distribution of E. carolleeae in the Oder River system in Central Europe indicates that it is a suitable habitat for the present populations and suggests further expansion of the species into continental waters.","PeriodicalId":8119,"journal":{"name":"Aquatic Invasions","volume":"70 1","pages":""},"PeriodicalIF":1.6,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81238803","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Genetic trajectories of zebra and quagga mussel invasions across three decades: Lake Erie versus Hudson River populations","authors":"N. Marshall, Carol A. Stepien","doi":"10.3391/AI.2021.16.1.10","DOIUrl":"https://doi.org/10.3391/AI.2021.16.1.10","url":null,"abstract":"Genetic compositions and comparative diversity of zebra (Dreissena polymorpha) and quagga (D. rostriformis) mussel populations are compared across their three decade-long histories as invasive species in the Hudson River and Lake Erie of North America. We analyze 15 nuclear DNA microsatellite loci for the zebra mussel and 10 for the quagga mussel. Results indicate that the Hudson River and Lake Erie zebra mussel populations slightly diverge in genetic compositions, and possess similar overall genetic diversity levels. The allelic composition of the Hudson River zebra mussel population significantly changed during the middle time period (2003) analyzed, suggesting genetic replacement. Yet, its overall levels of genetic diversity levels have stayed similar. In contrast, the Hudson River’s quagga mussel population has remained genetically consistent over time in both composition and diversity. Lake Erie’s zebra mussel population underwent slight change in allelic composition and increased in genetic diversity from the earliest timepoint, suggesting allelic supplementation from newly arriving propagules. In contrast, Lake Erie’s quagga mussel population has remained genetically consistent over time. The genetic composition of Lake Erie zebra mussel veliger larvae sampled in 2016 differed from its adult samples, attributable to gene flow from other areas and genetic admixture. Overall findings indicate that invasive populations may undergo significant genetic divergence or remain consistent over time, whose patterns may differ across their ranges and between related species. The population dynamics underlying their invasional successes thus may be complex.","PeriodicalId":8119,"journal":{"name":"Aquatic Invasions","volume":"149 1","pages":"147-166"},"PeriodicalIF":1.6,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77462910","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Dreissenids’ need for speed: mobility as a driver of the dominance shift between two invasive Ponto-Caspian mussel species","authors":"Anouk D’Hont, A. Gittenberger, J. Hendriks, R. Leuven","doi":"10.3391/AI.2021.16.1.08","DOIUrl":"https://doi.org/10.3391/AI.2021.16.1.08","url":null,"abstract":"Both the quagga mussel (Dreissena bugensis) and the zebra mussel (Dreissena polymorpha) are notorious for dominating hard substrates in freshwater ecosystems throughout most of the Northern hemisphere. Despite widespread observations of a dominance shift favouring D. bugensis, where both Ponto-Caspian dreissenids co-occur, mechanisms driving this shift are still largely unknown. This study assessed whether movement behaviour differs between these two mussel species. That way we aimed at assessing whether mobility might be a contributing driver to the observed dominance shift. The mobility of dreissenids was assessed in an experimental set-up consisting of polyethene tanks marked with squares and concentric circles facilitating location tracking of the dreissenids by time-lapse photography. Specimens were collected at the Haringvliet and Hollands Diep in the Rhine-Meuse river delta. The experiments mimicked unfavourable habitat conditions by drying, cleaning, tagging and placing mussels in a new environment. After these disturbances, the movement rate, duration, distance, pattern and speed of 299 individuals were monitored. For both species, most individuals moved in more or less circular patterns, causing their actual movement distance to be twice as high as their displacement distance. The average movement duration within 24 hours after the start of each experiment was 65 min, with an average speed of 28 cm/h and an average distance of 29 cm. Hereby no significant differences were found between D. polymorpha and D. bugensis. However, a higher top speed was observed for D. bugensis than for D. polymorpha. The fastest individuals of these two species moved at 90 cm/h and 60 cm/h, respectively. Moreover, about twice as many D. bugensis individuals moved during the experiments in comparison to D. polymorpha individuals. Hereby it was recorded that any point in time close to 10% more D. bugensis specimens were moving around. The results support our hypothesis that D. bugensis could have a competitive benefit over D. polymorpha by having a higher top speed and a significantly higher number of individuals moving after a disturbance of their population. Detachment and mobility of sessile mussel species are supposed to be avoidance mechanisms during unfavourable environmental conditions. Therefore, mobility might be one of the contributing drivers of the observed dominance shift between both species.","PeriodicalId":8119,"journal":{"name":"Aquatic Invasions","volume":"34 1","pages":"113-128"},"PeriodicalIF":1.6,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79668905","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Parasite infection of the non-indigenous round goby (Neogobius melanostomus) in the Baltic Sea","authors":"H. Ojaveer, A. Turovski, K. Nõomaa","doi":"10.3391/AI.2020.15.1.11","DOIUrl":"https://doi.org/10.3391/AI.2020.15.1.11","url":null,"abstract":"Parasites may play several critical functions in marine ecosystems, including possibly influencing introduction success or modifying the roles of non-indigenous species. Based on seasonally replicated sampling, we have investigated parasite communities and infection rates of the non-indigenous round goby Neogobius melanostomus in two localities in the NE Baltic Sea, characterised by different invasion trajectories. The parasite community of the fish was very rich, consisting of at least 24 native parasite species, with moderate mean infection intensity – 9.4 parasites per host. In total 78% of fish were infected with parasites, most frequently hosting 1–3 parasite species per fish. The trematode Diplostomum spathaceum had the highest prevalence (46%), while the acanthocephalan Corynosoma strumosum and the trematode Tylodelphys clavata had the highest infection intensity (mean 6.8 and 7.2, respectively). The seasonal dynamics of prevalence were similar in both localities, with the lowest number of infected fish being found immediately after winter with no clear patterns/differences between other seasons. Broadly similar patterns appeared both for species richness and infection intensity. Both localities displayed very similar patterns of occurrence frequency: both had a few parasite species which were specific to one locality and five species that occurred more frequently in one of the two localities. Binomial regression of the probability of infection identified season, total body length, and sex as significant predictors, but not the locality of sampling. The quantitative model revealed that infection intensity was positively linked to total body length and parasite species richness, and was on average 2.7 individuals higher in summer and autumn than in winter and spring.","PeriodicalId":8119,"journal":{"name":"Aquatic Invasions","volume":"7 1","pages":"160-176"},"PeriodicalIF":1.6,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76857214","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}