Trends in the detection of aquatic non‐indigenous species across global marine, estuarine and freshwater ecosystems: A 50‐year perspective

Diversity and Distributions, Journal Year: 2020, Volume and Issue: 26(12), P. 1780 - 1797

Published: Oct. 2, 2020

The introduction of aquatic non-indigenous species (ANS) has become a major driver for global changes in biogeography. We examined spatial patterns and temporal trends ANS detections since 1965 to inform conservation policy management.Global.We assembled an extensive dataset first records detection (1965-2015) across 49 ecosystems, including the (a) year collection, (b) population status (c) potential pathway(s) introduction. Data were analysed at regional levels assess rate, richness transport pathways.An annual mean 43 (±16 SD) primary occurred-one new every 8.4 days 50 years. rate was relatively stable during 1965-1995, but increased rapidly after this time, peaking roughly 66 per 2005-2010 then declining marginally. Detection rates variable within regions through time. Arthropods, molluscs fishes most frequently reported ANS. Most likely introduced as stowaways ships' ballast water or biofouling, although direct evidence is typically absent.This synthesis highlights magnitude recent detections, yet almost certainly represents underestimate many go unreported due limited search effort diminishing taxonomic expertise. Temporal are also confounded by reporting lags, contributing lower observed There critical need implement standardized, repeated methods taxa improve quality global-scale comparisons sustain core measures over longer time-scales. It will be fundamental fill knowledge gaps given that invasion data representing broad world's oceans not readily available maintain pipelines adaptive management.

Language: Английский

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A massive update of non-indigenous species records in Mediterranean marinas

PeerJ, Journal Year: 2017, Volume and Issue: 5, P. e3954 - e3954

Published: Oct. 24, 2017

The Mediterranean Sea is home to over 2/3 of the world’s charter boat traffic and hosts an estimated 1.5 million recreational boats. Studies elsewhere have demonstrated marinas as important hubs for stepping-stone transfer non-indigenous species (NIS), but these unique anthropogenic, typically artificial habitats largely gone overlooked in sources NIS hot-spots. From April 2015 November 2016, 34 were sampled across following countries: Spain, France, Italy, Malta, Greece, Turkey Cyprus investigate presence richness specialized hard substrate material marina habitats. All macroinvertebrate taxa collected identified. Additionally, fouling samples from approximately 600 boat-hulls 25 determine if boats host diverse not present marina. Here, we data revealing that indeed act major marine NIS, also provide evidence effective vectors spread. this wide-ranging geographical study, report here numerous new records at basin, subregional, country locality level. At basin level, three ( Achelia sawayai sensu lato , Aorides longimerus Cymodoce aff. fuscina ), re-appearance two previously known currently considered extinct Bemlos leptocheirus, Saccostrea glomerata ). We compellingly update distributions many showing some recent spreading; details 11 subregional Watersipora arcuata Hydroides brachyacantha now Western Mediterranean; Symplegma brakenhielmi Stenothoe georgiana Spirobranchus tertaceros Dendostrea folium Parasmittina egyptiaca Central Mediterranean, W. leptocheirus Dyspanopeus sayi Eastern Mediterranean). 51 marinas: 12 10 Cyprus, nine six Spain five representing 32 species. Finally, 20 (representing 17 species) found on (mobile habitats), yet same marina, or most cases, even country. For each record, their native origin global are provided, along with record. taxonomic characters used identification photos specimens provided. These should be added relevant databases compiled by several entities. Records uncertain identity discussed, assess probability valid status.

Language: Английский

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Climate change, biological invasions, and the shifting distribution of Mediterranean fishes: A large‐scale survey based on local ecological knowledge

Global Change Biology, Journal Year: 2019, Volume and Issue: 25(8), P. 2779 - 2792

Published: May 20, 2019

Climate change and biological invasions are rapidly reshuffling species distribution, restructuring the communities of many ecosystems worldwide. Tracking these transformations in marine environment is crucial, but our understanding climate effects invasive dynamics often hampered by practical challenge surveying large geographical areas. Here, we focus on Mediterranean Sea, a hot spot for to investigate recent spatiotemporal changes fish abundances distribution. To this end, accessed local ecological knowledge (LEK) small-scale recreational fishers, reconstructing perceived as "new" or increasing different fishing Over 500 fishers across 95 locations nine countries were interviewed, semiquantitative information yearly abundance was collected. Overall, 75 mentioned respondents, mostly warm-adapted both native exotic origin. Respondents belonging same biogeographic sectors described coherent spatial temporal patterns, gradients along latitudinal longitudinal axes revealed. This provides more complete shifting distribution fishes it also demonstrates that adequately structured LEK methodology might be applied successfully beyond scale, national borders jurisdictions. Acknowledging potential through macroregional coordination could pave way future large-scale aggregations individual observations, integrated monitoring conservation planning at regional even global level. help better understand, manage, adapt ongoing biotic driven invaders.

Language: Английский

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Future scenarios of marine resources and ecosystem conditions in the Eastern Mediterranean under the impacts of fishing, alien species and sea warming

Scientific Reports, Journal Year: 2018, Volume and Issue: 8(1)

Published: Sept. 18, 2018

Using a temporal-dynamic calibrated Ecosim food web model, we assess the effects of future changes on marine resources and ecosystem conditions Israeli Mediterranean continental shelf. This region has been intensely invaded by Indo-Pacific species. The is exposed to extreme environmental conditions, subjected high rates climate change experienced intense fishing pressure. We test impacts new set regulations currently being implemented, continued increase in sea temperatures following IPCC projections, alien species biomass. first investigate stressors separately, then combine them evaluate their cumulative effects. Our results show overall potential benefits effort reductions, detrimental increasing temperature biomass Cumulative scenarios suggest that beneficial fisheries reduction may be dampened impact when acting together. These illustrate importance including other than fisheries, such as biological invasions, an ecosystem-based management approach. support need for reducing local regional stressors, order promote resilience warming.

Language: Английский

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The Tropical Seagrass Halophila stipulacea: Reviewing What We Know From Its Native and Invasive Habitats, Alongside Identifying Knowledge Gaps

Frontiers in Marine Science, Journal Year: 2020, Volume and Issue: 7

Published: May 26, 2020

Halophila stipulacea is a small tropical seagrass, native to the Red Sea, Persian Gulf, and Indian Ocean. It invaded Mediterranean Sea 150 years ago as Lessepsian migrant, but so far has remained in insulated, populations across this basin. Surprisingly, 2002 it was reported Caribbean where within decade spread most of Island nations reaching South American continent. Unlike its invasion Mediterranean, H. creates large, continuous many areas. Reports from demonstrated invasiveness by showing that displaces local seagrass species. The motivation for review comes necessity unify existing knowledge on several aspects species invasive habitats, identify gaps develop critical strategy understand capacity implement an effective monitoring conservation plan mitigate potential outside ranges. We systematically reviewed 164 studies related create “Halophila database”. This allowed us evaluate current biological, ecological, physiological, biochemical, molecular Here we i) discuss possible environmental conditions plant mechanisms involved invasiveness, ii) assess impact seagrasses ecosystem functions regions, iii) predict ability invade European transoceanic coastal waters, iv) should be addressed better biology ecology both non-native which would improve our stipulacea’s expand into new areas future Considering predicted climate change scenarios exponential human pressures areas, stress need coordinated global mapping efforts will record changes associated communities over time, native, prospective distributional require involvement biologists, ecologists, economists, modellers, managers stakeholders.

Language: Английский

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Prioritizing marine invasive alien species in the European Union through horizon scanning

Aquatic Conservation Marine and Freshwater Ecosystems, Journal Year: 2020, Volume and Issue: 30(4), P. 794 - 845

Published: March 7, 2020

Abstract The disproportionately low presence of marine species in the list invasive alien (IAS) Union concern European (EU) Regulation 1143/2014 does not fully acknowledge threat they pose to EU environment. In this study, first EU‐scale Horizon Scanning (HS) focusing on was performed, aiming deliver a ranked that should be high priority for risk assessment (Article 5 IAS Regulation). Species absent from or with limited distribution waters were targeted. total, 363 initially screened HS by panel experts, including broad range taxonomic groups. scored their likelihood arrival, establishment, spread, and impact waters. A consensus workshop 267 species, subset 26 prioritized species. These are considered mainly introduced shipping (fouling ballast water), via Suez Canal, aquaculture activities. also scrutinized terms feasibility management; 18 them suggested performing assessments basis Regulation. Since biological invasions dynamic connected accelerated globalization diversified human activities, we recommend repeated periodically review already listed assess new ones.

Language: Английский

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Marine invasive alien species in Europe: 9 years after the IAS Regulation

Frontiers in Marine Science, Journal Year: 2023, Volume and Issue: 10

Published: Oct. 11, 2023

Biological invasions, resulting from human activities, exert substantial impacts on ecosystems worldwide. This review focuses marine invasive alien species (IAS) in Europe, examining the current state, proposing strategies to address problem, and offering recommendations for enhanced management. Effective management of biological invasions relies accessible, accurate data inform decision-making. Information systems such as European Alien Species Network (EASIN), Aquatic Non-Indigenous Cryptogenic (AquaNIS), World Register Introduced Marine (WriMS) provide comprehensive databases IAS, but their sustainability requires long-term maintenance, continuous updates, support. Most countries lack specific monitoring programs standardization improvement methods are needed. Port plays a vital role early detection new arrivals, recent advancements molecular techniques show promise effective IAS monitoring. Risk screening tools commonly employed rank taxa based invasiveness potential regions, variations protocols can yield inconsistent results. impact assessments highlight resource competition, novel habitat creation, predation primary mechanisms negative biodiversity, while creation habitats represents key mechanism positive impacts. Preventing introductions is critical, measures ballast water treatment implemented reduce likelihood introductions. However, understanding introduction pathways remains uncertain many IAS. Eradication control efforts have limited success, emphasizing need biosecurity measures. Climate change, especially ocean warming, intensify native ecosystems. In climate change hotspots, some tropical aliens may, however, compensate loss thermally sensitive natives with similar traits. Therefore, it imperative consider interactions between developing conservation strategies. Enhancing Europe entails i) securing adequate funding, ii) expanding list Union Concern adequately cover iii) learning successful practices, iv) sustaining information systems, v) improving warning innovative technologies, vi) enhancing prediction models, vii) conducting integrated mapping cumulative impacts, considering benefits ecosystem functioning services.

Language: Английский

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Horizon scanning for invasive alien species with the potential to threaten biodiversity and human health on a Mediterranean island

Biological Invasions, Journal Year: 2019, Volume and Issue: 21(6), P. 2107 - 2125

Published: April 16, 2019

Invasive alien species (IAS) are one of the major drivers change that can negatively affect biodiversity, ecosystem functions and services human health; islands particularly vulnerable to biological invasions. Horizon scanning lead prioritisation IAS inform decision-making action; its scale scope vary depending on need. We focussed likely arrive, establish biodiversity health Mediterranean island Cyprus. The horizon was entire used a two-step consensus-building process in which experts reviewed scored lists their likelihood arrival, establishment potential ecosystems and/or next 10 years. 225 species, considered be currently absent Cyprus, across taxa environments. agreed upon 100 constituted very high, high or medium risk, often arriving through multiple pathways introduction. remaining 125 were ranked as low risk. impacts documented for all species; 82 have potentially negative impact ranging from nuisance disease transmission. but thematic groups also relevance top Sovereign Base Areas given differing governance. This scan provides first systematic exercise identify invasive concern within region. outcomes should provide other region beyond with baseline data improve management.

Language: Английский

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Non-indigenous species refined national baseline inventories: A synthesis in the context of the European Union's Marine Strategy Framework Directive

Marine Pollution Bulletin, Journal Year: 2019, Volume and Issue: 145, P. 429 - 435

Published: June 22, 2019

Refined baseline inventories of non-indigenous species (NIS) are set per European Union Member State (MS), in the context Marine Strategy Framework Directive (MSFD). The based on initial assessment MSFD (2012) and updated data Alien Species Information Network, collaboration with NIS experts appointed by MSs. analysis revealed that a large number was not reported from assessments. Moreover, several initially listed currently considered as native Europe or were proven to be historical misreportings. refined constitute milestone for Descriptor 2 implementation, providing an improved basis reporting new introductions, facilitating D2 assessment. In addition, can help MSs establishment monitoring systems targeted NIS, foster cooperation across within shared marine subregions.

Language: Английский

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They are here to stay: the biology and ecology of lionfish (Pterois miles) in the Mediterranean Sea

Journal of Fish Biology, Journal Year: 2020, Volume and Issue: 97(1), P. 148 - 162

Published: April 6, 2020

Abstract The lionfish, Pterois miles , is one of the most recent Lessepsian immigrants into Mediterranean Sea, and it poses a serious threat to marine ecosystems in region. This study assesses basic biology ecology lionfish Mediterranean, examining morphometrics, reproduction diet as well population structure distribution. density has increased dramatically Cyprus since first sighting late 2012; by 2018 aggregations up 70 were found on rocky grounds with complex reefs artificial depths 0–50 m. Lionfish become mature within year, adults are capable spawning year‐round, peak summer when sea‐surface temperature reaches 28.4°C. Cypriot grow faster bigger than their native range, females more common males. generalist predators these waters, also consuming range teleost crustacean prey, some which high economic value ( e.g. Spicara smaris Sparisoma cretense ) or have an important role local trophic webs Chromis chromis ). Overall, reproductive patterns, presence juveniles throughout rapid growth rates indicate that thriving now already established region could potentially nuisance they temperate tropical western Atlantic–invasive range.

Language: Английский

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