Early detection of marine invasive species following the deployment of an artificial reef: Integrating tools to assist the decision-making process

Castro, Karen Lidia; Battini, Nicolás; Giachetti, Clara Belen; Trovant, Berenice; Abelando, Mariana; Basso, Néstor Guillermo; Schwindt, Evangelina

doi:10.1016/j.jenvman.2021.113333

Cited by 20 publications

(11 citation statements)

References 97 publications

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“…Instead, most known established non‐native species are associated with multiple vectors (Williams et al., 2013 ). Therefore, future introductions could be reduced by assessing all the vectors by creating a prioritisation framework based on these multiple factors (Castro et al., 2021 ; Davidson et al., 2017 ; Williams et al., 2013 ).…”

Section: Discussionmentioning

confidence: 99%

Identifying marine invasion threats and management priorities through introduction pathway analysis in a remote sub‐Antarctic ecosystem

Bayley,

Brewin,

James

et al. 2024

Ecology and Evolution

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The threat from novel marine species introductions is a global issue. When non‐native marine species are introduced to novel environments and become invasive, they can affect biodiversity, industry, ecosystem function, and both human and wildlife health. Isolated areas with sensitive or highly specialised endemic species can be particularly impacted. The global increase in the scope of tourism and other human activities, together with a rapidly changing climate, now put these remote ecosystems under threat. In this context, we analyse invasion pathways into South Georgia and the South Sandwich Islands (SGSSI) for marine non‐native species via vessel biofouling. The SGSSI archipelago has high biodiversity and endemism, and has historically been highly isolated from the South American mainland. The islands sit just below the Polar Front temperature boundary, affording some protection against introductions. However, the region is now warming and SGSSI increasingly acts as a gateway port for vessel traffic into the wider Antarctic, amplifying invasion likelihood. We use remote Automatic Identification System vessel‐tracking data over a 2‐year period to map vessel movement and behaviour around South Georgia, and across the ‘Scotia Sea’, ‘Magellanic’ and northern ‘Continental High Antarctic’ ecoregions. We find multiple vessel types from locations across the globe frequently now enter shallow inshore waters and stop for prolonged periods (weeks/months) at anchor. Vessels are active throughout the year and stop at multiple port hubs, frequently crossing international waters and ecoregions. Management recommendations to reduce marine invasion likelihood within SGSSI include initiating benthic and hull monitoring at the identified activity/dispersion hubs of King Edward Point, Bay of Isles, Gold Harbour, St Andrews Bay and Stromness Bay. More broadly, regional collaboration and coordination is necessary at neighbouring international ports. Here vessels need increased pre‐ and post‐arrival biosecurity assessment following set protocols, and improved monitoring of hulls for biofouling to pre‐emptively mitigate this threat.

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Section: Discussionmentioning

confidence: 99%

Identifying marine invasion threats and management priorities through introduction pathway analysis in a remote sub‐Antarctic ecosystem

Bayley,

Brewin,

James

et al. 2024

Ecology and Evolution

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“…The arrival of this species may be linked to international shipping traffic, with the port of Mar del Plata being a likely initial point of entry. Mar del Plata has a significant port in Argentina, serving both national fishing activities and housing the country’s most important marina ( Castro et al, 2021 ). In fact, Mar del Plata and its surrounding areas have the highest number of reported introduced species ( Schwindt et al, 2020 ), establishing it as a hotspot for invasive marine species ( Castro et al, 2021 ).…”

Section: Discussionmentioning

confidence: 99%

“…Mar del Plata has a significant port in Argentina, serving both national fishing activities and housing the country’s most important marina ( Castro et al, 2021 ). In fact, Mar del Plata and its surrounding areas have the highest number of reported introduced species ( Schwindt et al, 2020 ), establishing it as a hotspot for invasive marine species ( Castro et al, 2021 ). It is plausible that D. lineata has subsequently spread to other coastal areas, potentially facilitated by recreational vessels, as suggested by Castro et al (2021) in their detailed study on potential routes of introduction and distribution of invasive ascidian species in the country.…”

Section: Discussionmentioning

confidence: 99%

Mitochondrial and nuclear gene sequencing confirms the presence of the invasive sea anemone Diadumene lineata (Verrill, 1869) (Cnidaria: Actiniaria) in Argentina

González Muñoz,

Lauretta,

Bazterrica

et al. 2023

PeerJ

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Background Diadumene lineata is one of the most widespread sea anemone species worldwide. Although this species has been reported a few times on the Argentine coast since 2004, its identification has traditionally been based on external morphological characteristics, and in most cases no voucher specimens are available to support previous records. Methods In this study, we obtained DNA sequences of two mitochondrial markers (12S and 16S) and two nuclear markers (18S and 28S) from specimens of D. lineata collected in two locations on the Argentine coast separated by almost 800 km. Additionally, we conducted an analysis of the morphology, as well as the types and size ranges of cnidae, using specimens collected at three different locations along the Argentine coast. Furthermore, since introduced populations of D. lineata are presumably ephemeral and only reproduce asexually outside their native range, we examined the internal anatomy of representatives from the Argentine coast for gametogenic tissue as an indication of whether they might be capable of sexual reproduction. Results DNA data support our morphological identification, including cnidae analyses, of the specimens as D. lineata. Furthermore, all specimens examined were determined to be sterile. Discussion Genetic sequence comparisons, phylogenetic reconstruction, and cnidae data support the identification of individuals of D. lineata from Mar Chiquita and Garipe Beach, confirming the presence of the species on the Argentine coast using both morphological and molecular tools. The absence of fertile specimens suggests that each sampled population is likely reproducing only by asexual reproduction and possibly composed of clones. The presence of an additional category of longer p-mastigophores B2a in the actinopharynx and filaments, as well as holotrichs in the column, is also reported. Conclusions For the first time, we have confirmed the presence of D. lineata in Argentina through molecular data. Additionally, our findings indicate that the analyzed specimens are sterile, suggesting that this species is not engaging in sexual reproduction in the studied localities. It is crucial to continue monitoring the populations of D. lineata along the Argentine coast to assess whether they establish sexual reproduction, expand their distribution range or disappear, or potentially cause any harm to local species or alterations in benthic communities.

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“…Surveillance and long-term monitoring are essential strategies for early detection of marine invasive species. In this sense, Castro et al (2021) provided robust evidence about the importance of implementing programs directed towards the early detection and rapid response. During the monitoring of the newly introduced Pacific oyster Crassostrea (=Magallana) gigas on shipwrecks, two solitary ascidian species (Styela clava and S. plicata) were early detected and removed.…”

Section: ₇₄₄ E S�� mentioning

confidence: 95%

20 years of marine bioinvasions research: Achievements and challenges for the Southwestern Atlantic

et al. 2022

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§ contribuciones iguales.A��. The study of marine bioinvasions was not homogenously developed worldwide and it is unclear the amount of research effort currently applied across the Southwestern Atlantic (SWA) countries. Through a comprehensive literature review, in this work, we analyze trends, gaps and achievements in the marine bioinvasion research efforts made along the coastal-marine ecosystems of the SWA and over the last 20 years of development, and we identify current challenges to further strengthening regional and international policies and management decisions concerning coastal-marine invasive species. Our analysis showed an exponential growth in the research effort, mostly focused on ecological pa�erns of non-native species, while other categories of studies (e.g., processes, management, methodological and socio-ecological) received significantly less a�ention. We found a high prevalence of national studies, while regional and international collaborations were virtually nil. Although the three countries in the region have made important achievements regarding the study and management of marine bioinvasions, changing this unbalance in the research effort between national and international collaborations, and specifically the limited scientific collaborations across the SWA countries, should be a top priority to be�er deal with marine bioinvasions in a regional and global context.

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Early detection of marine invasive species following the deployment of an artificial reef: Integrating tools to assist the decision-making process

Cited by 20 publications

References 97 publications

Identifying marine invasion threats and management priorities through introduction pathway analysis in a remote sub‐Antarctic ecosystem

Identifying marine invasion threats and management priorities through introduction pathway analysis in a remote sub‐Antarctic ecosystem

Mitochondrial and nuclear gene sequencing confirms the presence of the invasive sea anemone Diadumene lineata (Verrill, 1869) (Cnidaria: Actiniaria) in Argentina

20 years of marine bioinvasions research: Achievements and challenges for the Southwestern Atlantic

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