Browsing by Author "Canning-Clode, João"
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- Anelídeos poliquetas como isco vivo: caracterização da atividade de apanha em ambientes salobros costeiros PortuguesesPublication . Fidalgo E Costa, Pedro; Sá, Erica; Alves, Ana Sofia; Cabral, Sara; Castro, Nuno; Picard, David; Castro, João J.; Cancela Da Fonseca, Luís; Chainho, Paula; Canning-Clode, João; Pombo, Ana Margarida; Costa, José LinoA captura de isco vivo para a pesca, efetuada em sedimentos intertidais, tem aumentado em todo o Mundo, pois face ao incremento da procura, constitui uma importante fonte de rendimento para as populações que vivem junto à costa. Macroinvertebrados, tais como, moluscos, crustáceos e anelídeos poliquetas, entre outros, são capturados em muitos sistemas estuarinos portugueses, sendo a dimensão real das capturas subestimada. Este é o caso das capturas de anelídeos poliquetas para utilização, quer como isco vivo, quer como suplemento alimentar em atividades de aquacultura.Com o intuito de estimar o esforço da apanha de isco, espécies-alvo, técnicas e ferramentas utilizadas nesta atividade e as características dos apanhadores (número, idade e género), foram escolhidos como locais de estudo os estuários do Tejo e do Sado e as Rias de Aveiro e Formosa, no âmbito do projeto“Anelídeos Poliquetas como Isco Vivo em Portugal: Gestão da Apanha, Importação e Cultivo”, financiado pelo Programa PROMAR. Os resultados obtidos nestes sistemas mostraram que: i) os apanhadores de moluscos bivalves foram claramente maioritários no Estuário do Tejo e nas Rias de Aveiro e Formosa.
- Exploring foraging preference of local fish species towards non-indigenous fouling communities near marinas: Insights from Remote Video Foraging System (RVFS) trialsPublication . Chebaane, Sahar; Pais, Miguel Pessanha; Engelen, Aschwin; Ramalhosa, Patrício; Silva, Rodrigo; Gizzi, Francesca; Canning-Clode, João; Bernal-Ibáñez, Alejandro; Monteiro, João GamaNon-indigenous species (NIS) spread from marinas to natural environments is influenced by niche availability, habitat suitability, and local biotic resistance. This study explores the effect of indigenous fish feeding behaviour on NIS proliferation using fouling communities, pre-grown on settlement plates, as two distinct, representative models: one from NIS-rich marinas and the other from areas outside marinas with fewer NIS. These plates were mounted on a Remote Video Foraging System (RVFS) near three marinas on Madeira Island. After 24-h, NIS abundance was reduced by 3.5 %. Canthigaster capistrata's preference for marinas plates suggests potential biotic resistance. However, Sparisoma cretense showed equal biting frequencies for both plate types. The cryptogenic ascidian Trididemnum cereum was the preferred target for the fish. Our study introduces a global framework using RVFS for in-situ experiments, replicable across divers contexts (e.g., feeding behaviour, biotic resistance), which can be complemented by metabarcoding and isotopic analysis to confirm consumption patterns.
- From plates to baits: using a remote video foraging system to study the impact of foraging on fouling non-indigenous speciesPublication . Chebaane, Sahar; Canning-Clode, João; Ramalhosa, Patrício; Belz, Janina; Castro, Nuno; Órfão, Inês; Sempere-Valverde, Juan; Engelen, Aschwin; Pais, Miguel Pessanha; Monteiro, João GamaMarinas are a gateway for the introduction and establishment of non-indigenous species (NIS). In these habitats, competition and predation are crucial determinants for NIS establishment and invasiveness. However, fish trophic preferences and biotic effects inside marinas are poorly known. This study proposes a novel method that combines the deployment of settlement plates to recruit different assemblages, followed by their use as bait in remote underwater video systems. This combined approach, addressed as a remote video foraging system (RVFS), can record fish foraging behaviour, including feeding choices and their impacts on fouling assemblage composition. An experimental RVFS trial carried out in a marina of Madeira Island, Portugal (NE Atlantic), identified the Mediterranean parrotfish, Sparisoma cretense, as the most important fouling grazer in the area. S. cretense behaved as a generalist and increased the heterogeneity of fouling assemblages, which can hamper NIS dominance of the fouling and reduce the pressure of propagules from the marina to the natural environment. The RVFS tool was useful to understand the trophic links between foragers and fouling and has the potential to provide relevant information for the management of NIS introductions, establishment and spread.
- Local benthic assemblages in shallow rocky reefs find refuge in a marine protected area at Madeira IslandPublication . Alves, F.; Canning-Clode, João; Ribeiro, Cláudia; Gestoso, Ignacio; Kaufmann, ManfredThe patterns of variability in the composition and structure of benthic communities along two depth strata (5 and 10m) and the presence of sea urchins in structuring the subtidal rocky reefs were quantified in a long-established coastal marine protected area (Garajau MPA) and in two size equivalent and contiguous impacted areas (one highly urbanized and other with high fishing pressure) at Madeira Island (northeast Atlantic). Results suggest i) the MPA could be acting as a refuge for local biodiversity, ii) communities from the highly fished area could be suffering an impoverishment of local biodiversity, and iii) communities from the highly urbanized area would be enriched by the establishment of opportunistic species. These findings support that the level of human-pressure likely plays an important role in the composition of benthic communities in this insular ecosystem, although this was more relevant at the shallower stratum where the key grazer Diadema africanum explained 65% of the variance of benthic assemblages. It is suggested that this MPA small dimension and proximity to human impacted areas are limiting the survival of predators of the D. africanum.
- A pioneering longterm experiment on mesophotic macrofouling communities in the North AtlanticPublication . Canning-Clode, João; Gizzi, Francesca; Braga-Henriques, Andreia; Ramalhosa, Patrício; Abreu, Pedro; Álvarez, Soledad; Biscoito, Manuel; Buhl-Mortensen, Pål; Delgado, João; Esson, Diane; Freitas, Mafalda; Freitas, Magno; Henriques, Filipe; Jakobsen, Joachim; Jakobsen, Kirsten; Kerckhof, Francis; Lüter, Carsten; Moura, Carlos J.; Radeta, Marko; Rocha, Rosana M.; Santos, Romana; Sepúlveda, Pedro; Silva, Rodrigo; Silva, Teresa; Souto, Javier; Triay-Portella, Raül; Wirtz, Peter; Xavier, Joana R.; Bastida-Zavala, Rolando; Bellou, Nikoleta; Gueroun, Sonia K. M.; Monteiro, João G.The mesophotic zone represents one of our planet's largest and least explored biomes. An increasing number of studies evidence the importance of macrofouling species in marine ecosystems, but information on these communities and the factors influencing their structures at mesophotic depths remain poor. This lack of understanding limits our ability to predict anthropogenic impacts or conduct restoration operations in the mesophotic and the lower boundary of the euphotic zones. In this study, we performed a 24-month experiment in a natural environment to investigate three factors influencing the macrobenthic community structure of the mesophotic and the euphotic lower boundary: depth, substrate orientation and substrate material. Using a manned submersible, several recruitment panels of two different materials were deployed at 100, 200 and 400 meters in vertical and horizontal positions. All three factors contributed to structuring the macrofouling communities, but depth and substrate orientation displayed the strongest effects. This study not only advances our understanding of lower boundary euphotic and mesophotic macrofouling communities but also establishes a foundation for future research and restoration efforts of mesophotic environments in the Madeira archipelago, where mesophotic habitats are amongst the least studied marine habitats in the Northeast Atlantic.
- Polychaete annelids as live bait in Portugal: harvesting activity in brackish water systemsPublication . Cabral, Sara; Alves, Ana Sofia; Castro, Nuno; Chainho, Paula; Sá, Erica; Cancela Da Fonseca, Luís; Fidalgo e Costa, Pedro; Castro, João; Canning-Clode, João; Pombo, Ana; Costa, José LinoPolychaete annelids are some of the most heavily harvested invertebrates collected in coastal areas and estuaries for their economic value as live fishing bait or as food supplement in aquaculture activities. However, information on bait digging in Portugal is scarce or incomplete. Thus, the present study aimed at investigating the bait digging activity in the four most relevant brackish water systems in Portugal: Ria de Aveiro and Ria Formosa coastal lagoons and Tagus and Sado estuaries. Direct observations were performed in each brackish water system 1 h and a half before and after the diurnal low spring tide (< 0.8 m height), on working days. Additionally, logbooks were delivered to bait diggers and two types of surveys were conducted in every system: one to all the intertidal users and the other only to bait diggers. The estimated daily weighted number of bait diggers varied between 31 in the Tagus estuary and 69 in the Ria Formosa coastal lagoon. Diopatra neapolitana (Delle Chiaje, 1841) was the main target species in Ria de Aveiro (more than 83%), Tagus estuary (more than 60%) and Ria Formosa (more than 90%), while in Sado estuary most of the bait diggers targeted Marphysa sp. (92.6%). The highest and lowest amount of polychaete annelid catches were estimated for Ria de Aveiro coastal lagoon (almost 50 tons per year) and Tagus estuary (11 tons per year), respectively. A total annual bait catch value in these four systems was estimated as €3.84 millions. The most important brackish water systems concerning bait diggers’ number and bait captures were Sado estuary and Ria de Aveiro coastal lagoon where management measures should be considered, although managing polychaete harvesting activity is still difficult due to limited information on harvesting and on direct and indirect impacts on population dynamics.
- The collapse of marine forests: drastic reduction in populations of the family Sargassaceae in Madeira Island (NE Atlantic)Publication . Bernal-Ibáñez, Alejandro; Gestoso, Ignacio; Wirtz, Peter; Kaufmann, Manfred; Serrao, Ester; Canning-Clode, João; Cacabelos, EvaSpecies of the genera Cystoseira, Ericaria, Gongolaria, and Sargassum (family Sargassaceae) are key components of the Mediterranean-Atlantic marine forests, essential for biodiversity and ecosystem functioning. Populations of these foundational species are particularly vulnerable to anthropogenic impacts, likely to be intensified under future scenarios of climate change. The decline and even disappearance of these species have been reported in different areas of the world. At Madeira Island (NE Atlantic), populations of Gongolaria abies-marina, Ericaria selaginoides, Sargassum vulgare, and Sargassum filipendula, the most ecologically relevant species in Macaronesian marine forests, have been suffering a drastic decline during the last decades, especially on the southern coast of the island, where anthropogenic pressure is higher than on the north coast. The lack of sufficient temporal coverage on qualitative and quantitative studies of Sargassaceae communities in Madeira poses a challenge to establish a specific period for this decline. Consulting qualitative studies and historical records, we have set for the first time a timeline that shows an evident decrease in Sargassaceae populations in the last 20 years on Madeira Island. Following this timeline, we pinpoint the start of this decline in the first decade of the 2000s. This can be particularly confirmed for places like Funchal and Reis Magos, with significantly higher historical records. Currently, most benthic communities on shallow subtidal rocky reefs along the south coast are dominated by sea urchins and crustose coralline algae, the so-called sea urchin barrens. However, in some cases, they are entirely covered by a layer of sediment. We discuss the possible factors contributing to these drastic changes, bringing Madeira’s marine forests to a dramatic decline. As many animal species rely on marine forests, the decline of Sargassaceae populations represents an invaluable ecological loss for the coastal ecosystem of the island.
- The ocean sampling day consortiumPublication . Kopf, Anna; Bicak, Mesude; Kottmann, Renzo; Schnetzer, Julia; Kostadinov, Ivaylo; Lehmann, Katja; Fernandez-Guerra, Antonio; Jeanthon, Christian; Rahav, Eyal; Ullrich, Matthias; Wichels, Antje; Jones, Scott; Orlic, Sandi; Steinke, Michael; Busch, Julia; Duarte, Bernardo; Caçador, Isabel; ten Hoopen, Petra; Canning-Clode, João; Aguirre-Macedo, Ma L.; Bobrova, Oleksandra; Vezzi, Alessandro; Marteinsson, Viggo; Collin, Rachel; Reynisson, Eyjolfur; Loureiro, Clara M.; Luna, Gian M.; Quero, Grazia M.; Löscher, Carolin R.; Kremp, Anke; Amaral, Valentina; DeLorenzo, Marie E.; Yoshida, Takashi; Øvreås, Lise; Wang, Shiao; Fuhrman, Jed A.; Tolman, Jennifer; LaRoche, Julie; Penna, Antonella; Frischer, Marc; Davis, Timothy; Katherine, Barker; Meyer, Christopher P.; Ogata, Hiroyuki; Conan, Pascal; Todorova, Nadezhda; Alonso, Cecilia; Stambler, Noga; Goodwin, Kelly; Nyhus, Paul A. F.; Yakimov, Michael M.; Santana, Rafael; Baltar, Federico; Bodrossy, Levente; Ingleton, Tim; Van De Kamp, Jodie; Frampton, Dion M.; Ostrowski, Martin; Van Ruth, Paul; Karamfilov, Ventzislav; Malthouse, Paul; Bizsel, Kemal C.; Claus, Simon; Deneudt, Klaas; Pedrotti, Maria L.; Munnik, Kate; Mortelmans, Jonas; Pitois, Sophie; Wallom, David; Salter, Ian; Costa, Rodrigo; Schroeder, Declan C.; Kandil, Mahrous M.; Rodriguez-Ezpeleta, Naiara; Kotoulas, Georgios; Berteaux-Lecellier, Veronique; Cochrane, Guy; Wecker, Patricia; Cariou, Thierry; Cancio, I.; Lauro, Federico M.; Vaulot, Daniel; Bienhold, Christina; Ghazal, Hassan; Chaouni, Bouchra; Essayeh, Soumya; Ettamimi, Sara; Iriberri, Juan; Zaid, El H.; Golyshin, Peter N.; Boukhatem, Noureddine; L’Haridon, Stephane; Martin, Patrick; Bouali, Abderrahim; Chahboune, Rajaa; Barrijal, Said; Timinouni, Mohammed; El Otmani, Fatima; Bennani, Mohamed; Mea, Marianna; Gasol, Josep M.; Jensen, Rachelle M.; Gerdts, Gunnar; Hinks, Jamie; Gebbels, Susan; Rosselli, Riccardo; Jude-Lemeilleur, Florence; De Pascale, Fabio; Bente, Edvardsen; Schiavon, Riccardo; dos Santos, Antonina; Moncheva, Snejana; Villar, Emilie; Pesant, Stéphane; Cataletto, Bruno; Malfatti, Francesca; Polymenakou, Paraskevi; Edirisinghe, Ranjith; Sonnenschein, Eva C.; Silveira, Jorge A. H.; Barbier, Michele; Karlsen, Hans E.; Dzhembekova, Nina; Turk, Valentina; Tinta, Tinkara; Fuller, Wayne J.; Salihoglu, Ilkay; Serakinci, Nedime; Ergoren, Mahmut C.; Bresnan, Eileen; Johnson, Zackary; Ramos, Sandra; Sinigalliano, Christopher D.; Siam, Rania; Gidley, Maribeth L.; Biancalana, Florencia; Zingone, Adriana; O’Gara, Fergal; Danovaro, Roberto; Tsiamis, George; Clark, M. S.; Costa, Ana C.; El Bour, Monia; Martins, Ana M.; Magalhães, Catarina; Collins, R. E.; Poulton, Nicole; Ducluzeau, Anne-Lise; Abdallah, Rehab Z.; Jackson, Stephen; Martinez, Jonathan; Costello, Mark J.; Amaral-Zettler, Linda A.; Gilbert, Jack A.; Davies, Neil; Field, Dawn; Glöckner, Frank O.Ocean Sampling Day was initiated by the EU-funded Micro B3 (Marine Microbial Biodiversity, Bioinformatics, Biotechnology) project to obtain a snapshot of the marine microbial biodiversity and function of the world’s oceans. It is a simultaneous global mega-sequencing campaign aiming to generate the largest standardized microbial data set in a single day. This will be achievable only through the coordinated efforts of an Ocean Sampling Day Consortium, supportive partnerships and networks between sites. This commentary outlines the establishment, function and aims of the Consortium and describes our vision for a sustainable study of marine microbial communities and their embedded functional traits.