• A snap shot of the short-term response of crustaceans to macrophyte detritus in the deep Oslofjord 

      Ramirez-Llodra, Eva; Rinde, Eli; Gundersen, Hege; Christie, Hartvig; Fagerli, Camilla With; Fredriksen, Stein; Gitmark, Janne Kim; Norling, Karl; Walday, Mats Gunnar; Norderhaug, Kjell Magnus (Journal article; Peer reviewed, 2016)
      A test deployment of a time-lapse camera lander in the deep Oslofjord (431 m) was used to obtain initial information on the response of benthic fauna to macroalgal debris. Three macroalgal species were used on the lander ...
    • Can multitrophic interactions and ocean warming influence large-scale kelp recovery? 

      Christie, Hartvig C; Gundersen, Hege; Rinde, Eli; Filbee-Dexter, Karen; Norderhaug, Kjell Magnus; Pedersen, Torstein; Bekkby, Trine; Gitmark, Janne Kim; Fagerli, Camilla With (Journal article; Peer reviewed, 2019)
      Ongoing changes along the northeastern Atlantic coastline provide an opportunity to explore the influence of climate change and multitrophic interactions on the recovery of kelp. Here, vast areas of sea urchin‐dominated ...
    • Detrital carbon production and export in high latitude kelp forests 

      Pedersen, Morten Foldager; Filbee-Dexter, Karen; Norderhaug, Kjell Magnus; Fredriksen, Stein; Frisk, Nicolai Lond; Fagerli, Camilla With; Wernberg, Thomas (Peer reviewed; Journal article, 2020)
      The production and fate of seaweed detritus is a major unknown in the global C-budget. Knowing the quantity of detritus produced, the form it takes (size) and its timing of delivery are key to understanding its role as a ...
    • Financial and Institutional Support Are Important for Large-Scale Kelp Forest Restoration 

      Eger, Aron M; Vergés, Adriana; Choi, Chang Geun; Christie, Hartvig C; Coleman, Melinda Ann; Fagerli, Camilla With; Fujita, Daisuke; Hasegawa, Masatoshi; Kim, Jeong Ha; Mayer-Pinto, Mariana; Reed, Dan C; Steinberg, Peter D.; Marzinelli, Ezequiel Miguel (Peer reviewed; Journal article, 2020)
      Kelps form extensive underwater forests that underpin valuable ecosystem goods and services in temperate and polar rocky coastlines globally. Stressors, such as ocean warming and pollution are causing regional declines of ...
    • Global kelp forest restoration: past lessons, present status, and future directions 

      Eger, Aaron M.; Marzinelli, Ezequiel M.; Christie, Hartvig C; Fagerli, Camilla With; Fujita, Daisuke; Gonzalez, Alejandra P.; Hong, Seok Woo; Kim, Jeong Ha; Lee, Lynn C.; McHugh, Tristin Anoush; Nishihara, Gregory N.; Tatsumi, Masayuki; Steinberg, Peter D.; Verges, Adriana (Peer reviewed; Journal article, 2022)
      Kelp forest ecosystems and their associated ecosystem services are declining around the world. In response, marine managers are working to restore and counteract these declines. Kelp restoration first started in the 1700s ...
    • Habitat features and their influence on the restoration potential of marine habitats in Europe 

      Bekkby, Trine; Papadopoulou, Nadia; Fiorentino, Dario; McOwen, Chris J.; Rinde, Eli; Boström, Christoffer; Carreiro-Silva, Marina; Linares, Cristina; Andersen, Guri Sogn; Bengil, Elizabeth Grace Tunka; Bilan, Meri; Cebrian, Emma; Cerrano, Carlo; Donovaro, Roberto; Fagerli, Camilla With; Fraschetti, Simonetta; Gagnon, Karine; Gambi, Cristina; Gundersen, Hege; Kipson, Silvija; Kotta, Jonne; Morato, Telmo; Ojaveer, Henn; Ramirez-Llodra, Eva (Peer reviewed; Journal article, 2020)
      To understand the restoration potential of degraded habitats, it is important to know the key processes and habitat features that allow for recovery after disturbance. As part of the EU (Horizon 2020) funded MERCES project, ...
    • Incorporating facilitative interactions into small-scale eelgrass restoration—challenges and opportunities 

      Gagnon, Karine; Christie, Hartvig C; Didderen, Karin; Fagerli, Camilla With; Govers, Laura L.; Gräfnings, Max L. E.; Heusinkveld, Jannes H. T.; Kaljurand, Kaire; Lengkeek, Wouter; Martin, Georg; Meysick, Lukas; Pajusalu, Liina; Rinde, Eli; van der Heide, Tjisse; Boström, Christoffer (Peer reviewed; Journal article, 2021)
      Marine ecosystem engineers such as seagrasses and bivalves create important coastal habitats sustaining high biodiversity and ecosystem services. Restoring these habitats is difficult due to the importance of feedback ...
    • Lack of sea urchin settlement may explain kelp forest recovery in overgrazed areas in Norway 

      Fagerli, Camilla With; Norderhaug, Kjell Magnus; Christie, Hartvig C (Journal article; Peer reviewed, 2013)
      In this study, we investigated whether failure of sea urchin recruitment can explain an ongoing phase shift from overgrazed, barren grounds to kelp forests along the coast of mid- Norway. Settlement of sea urchins on ...
    • New microsatellite loci for the green sea urchin Strongylocentrotus droebachiensis using universal M13 labelled markers 

      Angles d'Auriac, Marc; Hobæk, Anders; Christie, Hartvig C; Gundersen, Hege; Fagerli, Camilla With; Haugstetter, Johannes; Norderhaug, Kjell Magnus (Journal article; Peer reviewed, 2014)
    • Optimizing the use of quicklime (CaO) for sea urchin management — A lab and field study 

      Strand, Hans Kristian; Christie, Hartvig C; Fagerli, Camilla With; Mengede, Martin; Moy, Frithjof Emil (Peer reviewed; Journal article, 2020)
      Mass blooms of sea urchins sometimes cause kelp forest collapses that can last for decades. Quicklime has historically been used to reverse those conditions, but the efficacy of liming has varied along latitudinal and ...
    • Predators of the destructive sea urchin grazer Strongylocentrotus droebachiensis on the Norwegian coast 

      Fagerli, Camilla With; Norderhaug, Kjell Magnus; Christie, Hartvig C; Pedersen, Morten Foldager; Fredriksen, Stein (Journal article; Peer reviewed, 2014)
      In central Norway, populations of the green sea urchin Strongylocentrotus droe-bachiensis are collapsing, but the factors controlling its population density have not yet been elucidated. Through field sampling, we identified ...
    • Shifts between sugar kelp and turf algae in Norway: regime shifts or flips between different opportunistic seaweed species? 

      Christie, Hartvig C; Andersen, Guri Sogn; Bekkby, Trine; Fagerli, Camilla With; Gitmark, Janne Kim; Gundersen, Hege; Rinde, Eli (Journal article; Peer reviewed, 2019)
      Around year 2000, sugar kelp (Saccharina latissima) forests were observed to disappear in southern parts of Norway, being replaced by mats of turf algae (i.e. filamentous ephemeral algae) loaded with sediments. About 80% ...