Exploring marine invasions connectivity in a NE Atlantic Island through the lens of historical maritime traffic patterns

Castro, Nuno; Ramalhosa, Patrício; Jiménez, Jesús Lorenzo; Costa, José Lino; Gestoso, Ignácio; Canning‐Clode, João

doi:10.1016/j.rsma.2020.101333

Cited by 19 publications

(20 citation statements)

References 61 publications

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“…The list of NIS (marine invertebrates) was compiled (14 May 2020) for each archipelago based on multiple sources: WoRMS (species with “alien” designation), the Information System on Aquatic Non‐indigenous and Cryptogenic species (AquaNIS—http://www.corpi.ku.lt/databases/index.php/aquanis; Olenin et al., 2014), Castro et al. (2020), Chainho et al. (2015), ICES (2019), MITECO database (Ministerio para la Transición Ecológica y el Reto Demográfico, Catálago Español de Especies Exóticas Invasoras) and Ramalhosa et al.…”

Section: Methodsmentioning

confidence: 99%

Gaps in DNA sequence libraries for Macaronesian marine macroinvertebrates imply decades till completion and robust monitoring

Vieira

Lavrador

Parente

et al. 2021

Diversity and Distributions

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Aim DNA metabarcoding has great potential to improve biomonitoring in island's marine ecosystems, which are highly vulnerable to global change and non‐indigenous species (NIS) introductions. However, the depth and accuracy of the taxonomic identifications are mainly dependent on reference libraries containing representative and reliable sequences for the targeted species. In this study, we evaluated the gaps in the availability of DNA sequences and their accuracy for macroinvertebrates inhabiting Macaronesia's shallow marine habitats. Location Macaronesia (Azores, Madeira, Selvagens, Canaries). Methods Checklists of marine invertebrates occurring above 50 m depth were compiled using public databases and published checklists. The availability of cytochrome c oxidase subunit I (COI) and 18S rRNA (18S) gene sequences was verified in BOLD and GenBank. Finally, COI data were audited to check the congruence between morphospecies and Barcode Index Numbers (BINs). Results The taxonomic coverage of different phyla was greater for COI but unbalanced and variable among archipelagos. NIS were better represented in genetic databases (up to 73% and 59%, for COI and 18S, respectively) than native species (up to 47% and 31%, for COI and 18S, respectively). NIS displayed a higher number of discordant records, and native species, a higher quantity of cases of multiple BINs. Notably, DNA sequences generated from specimens collected from Macaronesia were found in less than 10% of the species. Projection of the rates of accretion of DNA sequences suggests that decades will be needed to complete these reference libraries. Main conclusions The level of completion of reference libraries for Macaronesia's marine macroinvertebrates is generally poor. Without a solid effort to speed up the production of sequence data (i.e. generate more DNA barcodes), the ability to employ DNA‐based biomonitoring of such vulnerable fauna is compromised. The high levels of suspected hidden diversity further deepen the expected gaps and reinforce the vulnerability of this endemism‐rich fauna.

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Section: Methodsmentioning

confidence: 99%

Gaps in DNA sequence libraries for Macaronesian marine macroinvertebrates imply decades till completion and robust monitoring

Vieira

Lavrador

Parente

et al. 2021

Diversity and Distributions

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“…Climate change and increased marine traffic might benefit various jellyfish species through spatial translocation and driving phenology shifts and bloom events [61][62][63]. When suitable conditions, including temperature and salinity, are met during the polyp and ephyra stages, jellyfish blooms occur.…”

Section: Discussionmentioning

confidence: 99%

Combined Effects of Temperature and Salinity on Polyps and Ephyrae of Aurelia solida (Cnidaria: Scyphozoa)

et al. 2021

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Jellyfish outbreaks are conspicuous natural events in marine ecosystems that have a substantial impact on the structure and dynamics of marine ecosystems and different economic sectors of human activities. Understanding the life cycle strategies of jellyfish species is therefore critical to mitigate the impacts these organisms may have. In this context, the present study investigated the effect of different temperature and salinity regimes on the rearing success of the jellyfish Aurelia solida in microcosm experiments on two different life stages: polyps and ephyrae. Polyps showed high survival rates across the different conditions (except at 28 °C/20 psu) and reproduced asexually in all combinations, with the highest budding activity at 20 °C and 30 psu. Strobilation occurred mainly at 16 °C and 35 psu. Although ephyra survival was highest at low salinities (20 psu) and lower temperatures (10 and 15 °C), the highest growth rates were reached at intermediate temperatures (20 °C). The comparison to other Aurelia species underlines the differences between even closely related species. Given the high tolerance capacity that A. solida presented in the experiments, the species has the potential to cope well under current climate change scenarios and possibly adapt successfully to other regions and ecosystems.

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“…Finally, it is known that commercial and recreational vessels are responsible for the transport of some of the most widespread non-native species [29][30][31]. The SE region presents a big port (~4 km) with dense international maritime traffic (e.g., container ships, gas tankers, recreational vessels), opposed to the small shelter port of the SW, used mainly by local fishermen.…”

Section: Discussionmentioning

confidence: 99%

“…Besides aquaculture substrates, several studies have been carried out in other anthropogenic structures, namely ports and recreational marinas, to assess the distribution and diversity of NIS [26][27][28], as these structures play an important role as main hubs for the introduction of NIS via the maritime transport [29][30][31]. Recently, Giangrande et al [32] analyzed and compared the fouling communities found on several artificial substrates, including pontoons, quays, and ropes of a fish aquaculture facility of an enclosed part of the Mar Grande of Taranto (Ionian Sea).…”

Section: Introductionmentioning

confidence: 99%

Non-Indigenous Species on Artificial Coastal Environments: Experimental Comparison between Aquaculture Farms and Recreational Marinas

Png-Gonzalez

Ramalhosa

Gestoso

et al. 2021

JMSE

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Globally, there is growing concern regarding the effects of the increasing anthropogenic pressures in marine communities. Artificial structures such as marinas and aquaculture facilities serve as invasion hotspots; hence, monitoring fouling communities on these structures can be valuable for detecting new invasions. In the current study, 24 settlement PVC plates were deployed for three months to compare the recruitment ability of these two artificial environments along the south coast of the offshore island of Madeira (NE Atlantic). The results showed higher variations in the species richness between regions (SW vs. SE) than between artificial habitats (sea-cages vs. marinas), although the community composition differed. Cnidaria and Bryozoa were the most representative groups in the aquaculture systems, while Bryozoa and Chordata were in the marinas. A sum of 18 NIS was recorded for the study, accounting for between 21.88% and 54.84% of the total number of species in the aquaculture facilities and marinas, respectively. The higher NIS percentage from the marinas was even more explicit in the SE coast, where Cradoscrupocellaria bertholletii, Parasmittina alba, and Botrylloides niger distinctly dominated fouling populations. The results suggest that at least some particular NIS previously reported in the studied marinas successfully colonized sea-cages. Future assessments need to address the potential role of aquaculture facilities as drivers for the secondary spread of NIS. Additionally, two new records are considered for Madeira: Eudendrium capillare and Ericthonius punctatus.

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Exploring marine invasions connectivity in a NE Atlantic Island through the lens of historical maritime traffic patterns

Cited by 19 publications

References 61 publications

Gaps in DNA sequence libraries for Macaronesian marine macroinvertebrates imply decades till completion and robust monitoring

Gaps in DNA sequence libraries for Macaronesian marine macroinvertebrates imply decades till completion and robust monitoring

Combined Effects of Temperature and Salinity on Polyps and Ephyrae of Aurelia solida (Cnidaria: Scyphozoa)

Non-Indigenous Species on Artificial Coastal Environments: Experimental Comparison between Aquaculture Farms and Recreational Marinas

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