9 documents found, page 1 of 1
Rapid tropicalization evidence of subtidal seaweed assemblages along a coastal ...
Azevedo, Jonas de; Franco, Joao N.; Vale, Cândida G.; Lemos, Marco F.L.; Arenas, FranciscoAnthropogenic climate change, particularly seawater warming, is expected to drive quick shifts in marine species distribution transforming coastal communities. These shifts in distribution will be particularly noticeable in biogeographical transition zones. The continental Portuguese coast stretches from north to south along 900 km. Despite this short spatial scale, the strong physical gradient intensified by t...
Range-edge populations of seaweeds show niche unfilling and poor adaptation to ...
Hernández, Sandra; García, Ana G.; Arenas, Francisco; Escribano, M. Pilar; Jueterbock, Alexander; De Clerck, Olivier; Maggs, Christine; Franco, Joao N.Aim: Global warming is affecting the distribution of species worldwide, but the level of adaptation of edge populations to warmer temperatures remains an open question. Here, we assess the thermal tolerance of populations of two habitat-forming seaweeds along their latitudinal range, using thermal niche unfilling to assess their resilience to global warming. Location: European Atlantic coastline. Taxon: Ascophy...
Where the grass is greenest in seagrass seascapes depends on life history and s...
Eggertsen, Linda; Goodell, Whitney; Cordeiro, Cesar A. M. M.; Cossa, Damboia; Lucena, Marcos de; Berkström, Charlotte; Franco, Joao N.Tropical seagrass meadows are critical habitats for many fish species, yet few studies have investigated the influence of multiple scale-dependent factors and marine protected areas on seagrass fish species of differing life histories. We assessed the influence of fine-scale seagrass meadow characteristics and seascape-scale variables on the abundance of fish in a seagrass-dominated seascape in the Bazaruto Arc...
Kelp carbon sink potential decreases with warming due to accelerating decomposi...
Filbee-Dexter, Karen; Feehan, Colette J.; Smale, Dan A.; Krumhansi, Kira A.; Augustine, Skye; De Bettignies, Florian; Burrows, Michael T.Cycling of organic carbon in the ocean has the potential to mitigate or exacerbate global climate change, but major questions remain about the environmental controls on organic carbon flux in the coastal zone. Here, we used a field experiment distributed across 28° of latitude, and the entire range of 2 dominant kelp species in the northern hemisphere, to measure decomposition rates of kelp detritus on the seaf...
Dynamics and fate of blue carbon in a mangrove–seagrass seascape: influence of ...
Dahl, Martin; Ismail, Rashid O.; Arias-Ortiz, Ariane; Deyanova, Diana; Franco, Joao N.; Hammar, Linus; Hoamby, Arielle I.; Linderholm, Hans W.Context: Seagrass meadows act as efficient natural carbon sinks by sequestering atmospheric CO2 and through trapping of allochthonous organic material, thereby preserving organic carbon (Corg) in their sediments. Less understood is the influence of landscape configuration and transformation (land-use change) on carbon sequestration dynamics in coastal seascapes across the land–sea interface. Objectives: We expl...
Leveraging the blue economy to transform marine forest restoration
Filbee-Dexter, Karen; Wernberg, Thomas; Barreiro, Rodolfo; Coleman, Melinda A.; Bettignies, Thibaut de; Feehan, Colette J.; Franco, Joao N.The UN Decade of Ecosystem Restoration is a response to the urgent need to substantially accelerate and upscale ecological restoration to secure Earth’s sustainable future. Globally, restoration commitments have focused overwhelmingly on terrestrial forests. In contrast, despite a strong value proposition, efforts to restore seaweed forests lag far behind other major ecosystems and continue to be dominated by s...
Artificial reefs in the North-East Atlantic area: Present situation, knowledge ...
Reis, Bianca; van der Linden, Pieter; Pinto, Isabel Sousa; Almada, Emanuel; Borges, Maria Teresa; Hall, Alice E.; Stafford, Rick; Herbert, Roger J.H.Artificial reefs have been deployed in multiple regions of the world for different purposes including habitat restoration and protection, biodiversity and fish stock enhancement, fisheries management and recreation. Artificial reefs can be a valuable tool for ecosystem protection and rehabilitation, helping mitigate the effects of anthropogenic impacts that we face today. However, knowledge on artificial reefs ...
High seasonal variability in sediment carbon stocks of cold‐temperate seagrass ...
Dahl, Martin; Asplund, Maria E.; Deyanova, Diana; Franco, Joao N.; Koliji, Alan; Infantes, Eduardo; Perry, Diana; Björk, Mats; Gullström, MartinSeagrass meadows have a high ability to capture and store atmospheric CO2 in the plant biomass and underlying sediment and thereby function as efficient carbon sinks. The seagrass Zostera marina is a common species in the temperate Northern Hemisphere, a region with strong seasonal variations in climate. How seasonality affects carbon storage capacity in seagrass meadows is largely unknown, and therefore, in th...
Snapshot of macroalgae and fish assemblages in temperate reefs in the Southern ...
Franco, Joao N.; Arenas, Francisco; Sousa-Pinto, Isabel; Santos, Carmen B. de losMost of the biodiversity studies in the South European Atlantic Shelf ecoregion are limited to shallow subtidal or intertidal habitats, while deeper reef habitats, also of relevant ecological importance, are particularly understudied. Macroalgal communities, associated fauna, and sea surface temperature were studied in deep reefs (25–30 m) at two locations in this ecoregion: Parcel, North of Portugal (41º N), a...