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Castro N, Félix PM, Gestoso I, Costa JL, Canning-Clode J. Management of non-indigenous species in Macaronesia: Misconceptions and alerts to decision-makers. MARINE POLLUTION BULLETIN 2024; 204:116506. [PMID: 38796992 DOI: 10.1016/j.marpolbul.2024.116506] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2024] [Revised: 05/15/2024] [Accepted: 05/15/2024] [Indexed: 05/29/2024]
Abstract
Human-induced pressures have led to substantial changes in marine ecosystems worldwide, with the introduction of non-indigenous species (NIS) emerging as a significant threat to ecological, economic, and social aspects. The Macaronesian islands, comprising the Azores, Madeira, Canary Islands, and Cabo Verde archipelagos, are regions where the regional economy is dependent on marine resources (e.g., marine traffic, ecotourism and fisheries). Despite their importance, concerted efforts to manage marine biological invasions in Macaronesia have been scarce. In this context, the current study aims to contribute to the much-needed debate on biosecurity measures in this unique insular ecosystem to prevent and mitigate the impact of NIS. By adhering to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) criteria, this work validated and analyzed 260 documents providing insights into the management of NIS in Macaronesia until 2022. These documents revealed the presence of 29 Invasive Alien Species (IAS), most of which are misconceptions regarding this terminology. Most studies focused on the stages of early detection, rapid response, and eradication across the archipelagos. Cabo Verde had comparatively fewer studies. The most common techniques include monitoring/sampling, literature reviews, and taxonomic reviews. NIS introduction pathways were mainly attributed to transport (stowaway) and unaided migration, with ship fouling, ballast water, rafting, ocean currents, and tropicalization being also identified as significant contributors. This systematic review highlights the current efforts to establish robust biosecurity protocols in Macaronesia and emphasizes the urgent need to safeguard the region's ecological, economic, and social well-being.
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Affiliation(s)
- Nuno Castro
- MARE - Marine and Environmental Sciences Centre/ARNET - Aquatic Research Network, Agência Regional para o Desenvolvimento da Investigação Tecnologia e Inovação (ARDITI), Funchal, Madeira, Portugal; Faculty of Life Sciences, University of Madeira, Funchal, Portugal; MARE - Marine and Environmental Sciences Centre/ARNET - Aquatic Research Network, Faculdade de Ciências, Universidade de Lisboa, Lisbon, Portugal.
| | - Pedro M Félix
- MARE - Marine and Environmental Sciences Centre/ARNET - Aquatic Research Network, Faculdade de Ciências, Universidade de Lisboa, Lisbon, Portugal
| | - Ignacio Gestoso
- MARE - Marine and Environmental Sciences Centre/ARNET - Aquatic Research Network, Agência Regional para o Desenvolvimento da Investigação Tecnologia e Inovação (ARDITI), Funchal, Madeira, Portugal; Faculty of Life Sciences, University of Madeira, Funchal, Portugal; Department of Biology, Faculty of Marine and Environmental Sciences & Marine Research Institute (INMAR), University of Cadiz (UCA), Puerto Real, Cadiz, Spain; Smithsonian Environmental Research Center, Edgewater, MD, USA
| | - José L Costa
- MARE - Marine and Environmental Sciences Centre/ARNET - Aquatic Research Network, Faculdade de Ciências, Universidade de Lisboa, Lisbon, Portugal
| | - João Canning-Clode
- MARE - Marine and Environmental Sciences Centre/ARNET - Aquatic Research Network, Agência Regional para o Desenvolvimento da Investigação Tecnologia e Inovação (ARDITI), Funchal, Madeira, Portugal; Faculty of Life Sciences, University of Madeira, Funchal, Portugal; Smithsonian Environmental Research Center, Edgewater, MD, USA
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2
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Romero-Vargas A, Fdez-Güelfo LA, Blandino A, Díaz MJ, Díaz AB. Rugulopteryx okamurae: Effect of hydrothermal acid pretreatment on the saccharification process. BIORESOURCE TECHNOLOGY 2023; 388:129721. [PMID: 37730140 DOI: 10.1016/j.biortech.2023.129721] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Revised: 08/24/2023] [Accepted: 09/04/2023] [Indexed: 09/22/2023]
Abstract
The biological invasion caused by the invasive macroalga Rugulopteryx okamurae is causing increasing concern in southern Europe. To reduce its impact, this brown alga can be treated from a biorefinery approach. In this study, the macroalga is used as raw material to obtain fermentable sugars, which can be converted into high value-added products. The alga was exposed to hydrothermal and hydrothermal acid pretreatment and the pretreated biomass was used for enzymatic hydrolysis, achieving a hydrolysate with a reducing sugar concentration of almost 25 g/L (49.2% more than with non-pretreated alga). In addition, the combined severity factor was calculated to identify the best pretreatment conditions, finding the optimum in those pretreatments performed with 0.2 N HCl concentration and 15 min reaction time. Based on the results, it would be interesting to carry out new studies using the saccharified medium obtained under optimal conditions to obtain value-added compounds by fermentation.
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Affiliation(s)
- Agustín Romero-Vargas
- Department of Chemical Engineering and Food Technology, Wine and Agrifood Research Institute (IVAGRO), University of Cádiz - International Campus of Excellence (ceiA3), 11510 Puerto Real, Cádiz, Spain.
| | - Luis Alberto Fdez-Güelfo
- Department of Environmental Technologies, Faculty of Marine and Environmental Sciences, University of Cádiz - International Campus of Excellence (ceiA3), 11510 Puerto Real, Cádiz, Spain.
| | - Ana Blandino
- Department of Chemical Engineering and Food Technology, Wine and Agrifood Research Institute (IVAGRO), University of Cádiz - International Campus of Excellence (ceiA3), 11510 Puerto Real, Cádiz, Spain.
| | - Manuel J Díaz
- Department of Chemical Engineering and Food Technology, Wine and Agrifood Research Institute (IVAGRO), University of Cádiz - International Campus of Excellence (ceiA3), 11510 Puerto Real, Cádiz, Spain.
| | - Ana Belén Díaz
- Department of Chemical Engineering and Food Technology, Wine and Agrifood Research Institute (IVAGRO), University of Cádiz - International Campus of Excellence (ceiA3), 11510 Puerto Real, Cádiz, Spain.
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3
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De la Lama-Calvente D, Fernández-Rodríguez MJ, García-Gómez JC, Borja R. Impact of natural degradation of the invasive alga Rugulopteryx okamurae on anaerobic digestion: Heavy metal pollution and kinetic performance. MARINE POLLUTION BULLETIN 2023; 192:115005. [PMID: 37167665 DOI: 10.1016/j.marpolbul.2023.115005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 04/25/2023] [Accepted: 04/28/2023] [Indexed: 05/13/2023]
Abstract
This study shows, for the first time, how the natural biodegradation of the Phaeophyceae Rugulopteryx okamurae (R.o.) affects its methane yield, by biochemical methane potential assays, and the methane production kinetics. Additionally, a mechanical (zeolite-assisted milling) and a thermal (120 °C, 45 min) pretreatments were assessed. The highest methane yield was obtained from the mechanically pretreated fresh ashore biomass (219 (15) NLCH4 kgVS-1), which presents the use of zeolite during milling as an economical alternative for heavy metal toxicity reduction. Moreover, no significant differences were observed between the other tests (with the exception of the lowest value obtained for the mechanically pretreated fresh R.o.). Low methane yields were linked to the heavy metal content. However, an increase of 28.5 % and 20.0 % in the k value was found for the untreated fresh R.o. biomass and fresh ashore biomass, respectively, when subjected to thermal pretreatment. Finally, an enhancement of 80.5 % in the maximum methane production rate was obtained for the fresh ashore biomass milled with zeolite compared to the untreated fresh ashore biomass.
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Affiliation(s)
- David De la Lama-Calvente
- Spanish Scientific Research Council (CSIC) - Instituto de la Grasa (IG), Department of Food Biotechnology, Campus Universidad Pablo de Olavide, Edificio 46. Ctra. de Utrera, km 1, 41013 Seville, Spain.
| | | | | | - Rafael Borja
- Spanish Scientific Research Council (CSIC) - Instituto de la Grasa (IG), Department of Food Biotechnology, Campus Universidad Pablo de Olavide, Edificio 46. Ctra. de Utrera, km 1, 41013 Seville, Spain
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García-Lafuente J, Nadal I, Sammartino S, Korbee N, Figueroa FL. Could secondary flows have made possible the cross-strait transport and explosive invasion of Rugulopteryx okamurae algae in the Strait of Gibraltar? PLoS One 2023; 18:e0285470. [PMID: 37220121 DOI: 10.1371/journal.pone.0285470] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Accepted: 04/25/2023] [Indexed: 05/25/2023] Open
Abstract
Presently, the Strait of Gibraltar is undergoing an unprecedented invasion of the alien alga Rugulopteryx okamurae of North Pacific origin. According to the scarce literature, the algae first settled in the south shore, probably following commercial exchanges with French ports where it was accidentally introduced together with Japanese oysters imported for mariculture. There is no certainty, however, that the algae first colonized the south shore of the Strait and, from there, spread to the north. It could well have been the opposite. Whatever the case, it spread all over the Strait and surrounding areas with amazing rapidity. Human-mediated vectors (algae attached to ship hulls or fishing nets, for example) can be behind the spread from the shore initially settled to the algae-free shore on the opposite side. But it could also have happened by means of hydrodynamic processes without direct human intervention. This possibility is assessed in this paper by revisiting historical current meter profiles collected in the Strait of Gibraltar searching for secondary cross-strait flows. All the stations present an intermediate layer of northward cross-strait velocity near the interface of the mean baroclinic exchange along with a surface layer above of southward velocity, whose lower part also overlaps the interface zone. The first one would back the south-to-north transport of algal fragments, the second one, the north-to south. In both cases, algae must reach the depth of the interface. The vertical velocity field in the area, which far exceeds the small sedimentation velocity of the algae, allows their vertical displacements throughout the water column. Its endurance to survive under the weak or no light conditions that will prevail during the cross-strait transport and its capability of reactivating the metabolism after this unfavorable period, offers chances for colonizing the opposite shore. Therefore, the propagation of the algae by hydrodynamic processes, without human intervention, cannot be ruled out.
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Affiliation(s)
- Jesús García-Lafuente
- Physical Oceanography Group, Instituto de Biotecnología y Desarrollo Azul (IBYDA), Universidad de Málaga, Málaga, Spain
| | - Irene Nadal
- Physical Oceanography Group, Instituto de Biotecnología y Desarrollo Azul (IBYDA), Universidad de Málaga, Málaga, Spain
| | - Simone Sammartino
- Physical Oceanography Group, Instituto de Ingeniería Oceánica (IIO), Universidad de Málaga, Málaga, Spain
| | - Nathalie Korbee
- Department of Ecology and Geology, Instituto de Biotecnología y Desarrollo Azul (IBYDA), Universidad de Málaga, Málaga, Spain
| | - Félix L Figueroa
- Department of Ecology and Geology, Instituto de Biotecnología y Desarrollo Azul (IBYDA), Universidad de Málaga, Málaga, Spain
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Sánchez de Pedro R, Fernández AN, Melero-Jiménez IJ, García-Sánchez MJ, Flores-Moya A, Bañares-España E. Temporal and spatial variability in population traits of an intertidal fucoid reveals local-scale climatic refugia. MARINE ENVIRONMENTAL RESEARCH 2023; 188:106006. [PMID: 37182324 DOI: 10.1016/j.marenvres.2023.106006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Revised: 04/21/2023] [Accepted: 04/25/2023] [Indexed: 05/16/2023]
Abstract
Global change is imposing significant losses in the functional traits of marine organisms. Although areas of climatic refugia ameliorate local conditions and help them to persist, the extent to which mesoscale effects contribute for intraregional variability on population traits and conservation is uncertain. Here we assess patterns of conservation status of Fucus guiryi, the main intertidal habitat-forming seaweed in the Strait of Gibraltar (southern Spain and northern Morocco). We investigated the demography, reproductive phenology, and morphology at northern and southern side populations. Population traits were compared seasonally within populations from each side, and at spatial scale in early summer 2019. In the last decade three populations became extinct; two marginal populations had dispersed individuals with a narrower fertility season and miniaturized individuals below 3 cm; and five populations showed variable density and cover with more than 20% of reproductive individuals over the seasons. Highest density, cover, morphology, and reproductive potential was detected at one population from each side, suggesting local-scale climatic refugia in upwelling areas located inside marine protected areas. Southern recruits were more warm-tolerant but grew less at colder conditions than northern ones, revealing a mesoscale heterogeneity in thermal affinities. This study evidenced functional losses and distinct reproductive strategies experienced by F. guiryi at peripheral locations and urges to prioritize its conservation and restoration at contemporary climatic refugia.
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Affiliation(s)
- Raquel Sánchez de Pedro
- Universidad de Málaga, Andalucía Tech, Departamento de Botánica y Fisiología Vegetal, Campus de Teatinos, 29010, Málaga, Spain.
| | - Andrea N Fernández
- Universidad de Málaga, Andalucía Tech, Departamento de Botánica y Fisiología Vegetal, Campus de Teatinos, 29010, Málaga, Spain
| | - Ignacio José Melero-Jiménez
- Universidad de Málaga, Andalucía Tech, Departamento de Botánica y Fisiología Vegetal, Campus de Teatinos, 29010, Málaga, Spain; Department of Plant Pathology and Microbiology, Institute of Environmental Sciences, The Hebrew University of Jerusalem, Rehovot, Israel
| | - María Jesús García-Sánchez
- Universidad de Málaga, Andalucía Tech, Departamento de Botánica y Fisiología Vegetal, Campus de Teatinos, 29010, Málaga, Spain
| | - Antonio Flores-Moya
- Universidad de Málaga, Andalucía Tech, Departamento de Botánica y Fisiología Vegetal, Campus de Teatinos, 29010, Málaga, Spain
| | - Elena Bañares-España
- Universidad de Málaga, Andalucía Tech, Departamento de Botánica y Fisiología Vegetal, Campus de Teatinos, 29010, Málaga, Spain
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de Carvalho-Junior L, Neves LM, Teixeira-Neves TP, Cardoso SJ. Long-term changes in benthic communities following the invasion by an alien octocoral in the Southwest Atlantic, Brazil. MARINE POLLUTION BULLETIN 2023; 186:114386. [PMID: 36462420 DOI: 10.1016/j.marpolbul.2022.114386] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2022] [Revised: 11/14/2022] [Accepted: 11/16/2022] [Indexed: 06/17/2023]
Abstract
Invasive alien species are considered one of the main threats to marine biodiversity. We used a BACI design to investigate the changes in rocky reef benthic communities related to the invasion of the octocoral Latissimia ningalooensis in the Southwest Atlantic. Drastic changes in benthic community structure were restricted to the invaded site and associated with the growth of L. ningalooensis on turf algae. Conversely, the zoanthid Palythoa caribaeorum remained stable coverage along the 9-year study period, indicating a greater biotic resistance against the octocoral. Latissimia ningalooensis spread from large and well-established patches to new areas of the reef, increasing turf-octocoral interactions. This study warns of the great invasive potential of the octocoral, due to its high abundance, competitive and expansion ability. The decline in abundance of turf-forming algae following the emergence of L. ningalooensis threatens the structure and functioning of macroalgal-dominated rocky reefs.
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Affiliation(s)
- Lécio de Carvalho-Junior
- Graduate Program in Biodiversity, Federal University of Juiz de Fora, Rua José Lourenço Kelmer, São Pedro, Juiz de Fora, MG 36036-900, Brazil; Laboratory of Plankton Ecology, Department of Zoology, Federal University of Juiz de Fora, Rua José Lourenço Kelmer, São Pedro, Juiz de Fora, MG 36036-900, Brazil; Laboratory of Aquatic Ecology and Environmental Education, Department of Environmental Sciences, Campus Três Rios, Federal Rural University of Rio de Janeiro, Três Rios, RJ 25802-100, Brazil
| | - Leonardo M Neves
- Laboratory of Aquatic Ecology and Environmental Education, Department of Environmental Sciences, Campus Três Rios, Federal Rural University of Rio de Janeiro, Três Rios, RJ 25802-100, Brazil.
| | - Tatiana P Teixeira-Neves
- Laboratory of Aquatic Ecology and Environmental Education, Department of Environmental Sciences, Campus Três Rios, Federal Rural University of Rio de Janeiro, Três Rios, RJ 25802-100, Brazil
| | - Simone J Cardoso
- Graduate Program in Biodiversity, Federal University of Juiz de Fora, Rua José Lourenço Kelmer, São Pedro, Juiz de Fora, MG 36036-900, Brazil; Laboratory of Plankton Ecology, Department of Zoology, Federal University of Juiz de Fora, Rua José Lourenço Kelmer, São Pedro, Juiz de Fora, MG 36036-900, Brazil
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Clavero M, Franch N, Bernardo-Madrid R, López V, Abelló P, Queral JM, Mancinelli G. Severe, rapid and widespread impacts of an Atlantic blue crab invasion. MARINE POLLUTION BULLETIN 2022; 176:113479. [PMID: 35240457 DOI: 10.1016/j.marpolbul.2022.113479] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Revised: 02/14/2022] [Accepted: 02/16/2022] [Indexed: 06/14/2023]
Abstract
The Atlantic blue crab (Callinectes sapidus) has rapidly invaded coastal environments in the western Mediterranean, but there is no consistent assessment of its impacts yet. We use interviews and long-term data series in the Ebro Delta (NE Spain) to: i) characterise the evolution of the blue crab invasion; and ii) identify its impacts. The blue crab was first recorded in 2012, but its expansion started around 2016, with an exponential increase in abundance between 2017 and 2018. Aquatic communities have tended to be dominated by the blue crab, coinciding with the steep and consistent declines of several species, including threatened and commercially exploited ones. Blue crab impacts seem to be exerted even at low abundances, arguably hindering the recovery of declining species. The blue crab is becoming a keystone species in invaded systems and efforts should be made to understand its many-folds impacts in order to prevent or mitigate them.
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Affiliation(s)
- Miguel Clavero
- Doñana Biological Station - CSIC, Av. Americo Vspucio 26, 41092 Sevilla, Spain.
| | - Nati Franch
- Parc Natural del Delta de l'Ebre, Av. Catalunya 46, 43580 Deltebre, Tarragona, Spain
| | | | - Verónica López
- Institut d'Estudis Professionals Aqüícoles i Ambientals de Catalunya (IEPAAC), 43540 Sant Carles de la Ràpita, Tarragona, Spain
| | - Pere Abelló
- Institut de Ciències del Mar (ICM-CSIC), Passeig Marítim 37-49, 08003 Barcelona, Catalonia, Spain
| | - Josep Maria Queral
- Parc Natural del Delta de l'Ebre, Av. Catalunya 46, 43580 Deltebre, Tarragona, Spain
| | - Giorgio Mancinelli
- Department of Biological and Environmental Sciences and Technologies (DiSTeBA), University of Salento, SP Lecce-Monteroni, 73100 Lecce, Italy; National Research Council - Institute of Marine Biological Resources and Biotechnologies (CNR-IRBIM), Via Pola 4, 71010 Lesina, FG, Italy; CoNISMa, Consorzio Nazionale Interuniversitario per le Scienze del Mare, Piazzale Flaminio 9, 00196 Roma, Italy
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