Recherche

Campanyà-Llovet, Neus; Bates, Amanda E; Cuvelier, Daphne; Giacomello, Eva; Catarino, Diana; Gooday, Andrew J; Berning, Björn; Figuerola, Blanca; Malaquias, Manuel; Moura, Carlos J; Xavier, Joana R; Sutton, Tracey T; Fauconnet, Laurence; Ramalho, Sofia; Neves, Bárbara M; Menezes, Gui M; Horton, Tammy; Gebruk, Andrey V; Minin, K V; Bried, Joël; Molodtsova, Tina; Silva, Mónica A; Dilman, Anna; Kremenetskaia, Antonina; Costa, Eudriano; Clarke, Jameson; Martins, Helen R; Pham, Christopher Kim; Carreiro-Silva, Marina; Colaço, Ana — 2023 Trait-based approaches that complement taxonomic-based studies have increased in popularity among the scientific community over the last decades. The collection of biological and ecological characteristics of species (i.e., traits) provides insight into species and ecosystem vulnerability to environmental and anthropogenic changes, as well as ecosystem functioning. While most of the available trait databases to date contain essential information to understand the functional diversity of a taxonomic group or functional group based on size, the FUN Azores trait database has an ecosystem-based approach that provides a comprehensive assessment of diverse fauna (meio-, macro-, and megafauna) from benthic and pelagic environments in the Azores Marine Park; including ridges, seamounts, and hydrothermal vents. We used a collaborative approach involving 30 researchers with different expertise to develop the trait database; which contains compiled data on 14 traits representing morphological, behavioral, and life history characteristics for 1210 species, across 10 phyla. Meaning of quality flag codes: 0 - No information available; 1 - Inferred from a related species; 2 - Limited publications (Expert knowledge or published); 3 - Widely accepted (Expert knowledge or published) https://creativecommons.org/licenses/by/4.0/legalcode

Rakka, Maria; Larsson, Ann I; Carreiro-Silva, Marina — 2024 Here, we report the results of a multiple stressor experiment combining impacts of ocean acidification and Polymetallic sulfide (PMS) deposits produced by deep-sea mining on larval survival of the deep-sea coral Desmophyllum pertusum (syn. Lophelia pertusa). Adult colonies of D. pertusum were collected in December and January 2022 at Tisler reef, at depths between 100-120 m. Adults were maintained in aquaria and after spawning, embryos were collected and left to develop to 7-day larvae. On day 7, larvae were exposed to four experimental treatments and their combinations: two pCO2 treatments recreating present conditions (400 ppm), and conditions projected to the end of the century (RCP8.5, 1000 ppm), as well as two mining treatments corresponding to PMS particles (concentration 5 mg/L), and their leachates. Survival was monitored every 24h. Experimental treatment: CTR: present pCO2, no mining; AC: end of century pCO2, no mining; CTR-SED: present pCO2 and PMS sediment; CTR-MET: present pCO2 and PMS leachates; AC-SED: end-of-century pCO2 and PMS sediment; AC-MET: end-of-century pCO2 and PMS leachatesCTR/present: pcO2 400 ppm; Low/end-of-century: pCO2 1000 ppmNo: No mining sediment; Sediment: sediment, metals only: metal leachates without sediment https://creativecommons.org/licenses/by/4.0/legalcode

Rakka, Maria; Carreiro-Silva, Marina; Larsson, Ann I — 2024 The objective of this study is to determine the effects of ocean acidification (OA) on the survival, development and swimming behaviour of embryos of the deep-sea coral Desmophyllum pertusum (syn. Lophelia pertusa). Upon spawning, fertilized embryos were collected and exposed to two pCO2 treatments corresponding to present pCO2 conditions (400 ppm) and future pCO2 conditions predicted under scenario IPCC RCP8.5 for the end of the century (1000 ppm). We monitored survival daily and we measured swimming velocity on day 9 after spawning. Temperature and pH were measured every 24h, salinity was measured every other day, and water samples were collected during the first and last day of the experiment to determine total alkalinity (TA). This dataset includes data on the effects of ocean acidification on swimming velocity of larvae of the deep-sea coral Desmophyllum pertusum. Embryos were exposed to two acidification (pCO2) treatments: present pCO2 conditions (400 ppm) and future pCO2 conditions predicted under RCP8.5 for the end of the century (1000 ppm). After rearing the embryos in the respective treatments for nine days, we recorded the swimming behaviour of larvae with a video camera. Videos were analyzed with manual particle tracking, and here we report the swimming velocity and total traveled distance of larvae in each experimental treatment. Experimental treatment, CTR: present pCO2 400 ppm; AC: end-of-century pCO2 1000 ppm https://creativecommons.org/licenses/by/4.0/legalcode

Rakka, Maria; Carreiro-Silva, Marina; Larsson, Ann I — 2024 The objective of this study is to determine the effects of ocean acidification (OA) on the survival, development and swimming behaviour of embryos of the deep-sea coral Desmophyllum pertusum (syn. Lophelia pertusa). Upon spawning, fertilized embryos were collected and exposed to two pCO2 treatments corresponding to present pCO2 conditions (400 ppm) and future pCO2 conditions predicted under scenario IPCC RCP8.5 for the end of the century (1000 ppm). We monitored survival daily and we measured swimming velocity on day 9 after spawning. Temperature and pH were measured every 24h, salinity was measured every other day, and water samples were collected during the first and last day of the experiment to determine total alkalinity (TA).This dataset includes data on the effects of OA on embryo and larval survival of the deep-sea coral Desmophyllum pertusum. Embryos (age: first cleavage and 2 cell stage) were exposed to two acidification (pCO2) treatments: present pCO2 conditions (400 ppm) and future pCO2 conditions predicted under RCP8.5 for the end of the century (1000 ppm) and reared for a total of nine days. We counted embryos and larvae daily to determine larval survival under the two treatments. Measurements annotated with "Dev" correspond to flasks that were not used for survival counts, but just for monitoring embryo development.Experimental treatment, CTR: present pCO2 400 ppm; AC: end-of-century pCO2 1000 ppm https://creativecommons.org/licenses/by/4.0/legalcode