Marine biodiversity

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Alfsnes K, Hobæk A, Weider LJ, Hessen DO (2016) Birds, nutrients, and climate change: mtDNA haplotype diversity of Arctic Daphnia on Svalbard revisited. Polar Biology p. 1-13. Link

Armitage CS, Sjøtun K (2016) Epiphytic macroalgae mediate the impact of a non-native alga on associated fauna. Hydrobiologia 776: 35. Link

Dahlgren K, Olsen BR, Troedsson C, Bamstedt U (2012) Seasonal variation in wax ester concentration and gut content in a Baltic Sea copepod [Limnocalanus macrurus (Sars 1863)]. Journal of Plankton Research 34(4): 286-297. Link

Dressler-Allame M, Göcke C, Kersken D, Plotkin A, Janussen D (2016) Carnivorous sponges (Cladorhizidae) of the deep Weddell Sea, with descriptions of two new species. Deep Sea Research Part II: Topical Studies in Oceanography. Link

Göcke C, Hestetun JT, Uhlir C, Freiwald A, Beuck L, Janussen D (2016) Cladorhiza corallophila sp. nov., a new carnivorous sponge (Cladorhizidae, Demospongiae) living in close association with Lophelia pertusa and Madrepora oculata (Scleractinia). Zootaxa. 4168 (3): 512-524. Link

Hestetun JT, Dahle H, Jørgensen SL, Olsen BR, Rapp HT (2016) The Microbiome and Occurrence of Methanotrophy in Carnivorous Sponges. Online proof. Frontiers in Microbiology. Link

Hestetun JT, Pomponi S, Rapp HT (2016) The cladorhizid fauna of the Caribbean and adjacent areas. Zootaxa 4175(6): 521-538. Link

Hestetun JTRapp HT, Xavier J (2016) Carnivorous sponges (Porifera, Cladorhizidae) from the Southwestern Indian Ocean Ridge seamounts. Deep-Sea Research Part II. Link

Hestetun JT, Vacelet J, Boury-Esnault N, Borchiellini C, Kelly M, Rios P, Cristobo J, Rapp HT (2016) The systematics of carnivorous sponges. Molecular Phylogenetics and Evolution 94: 327-345. Link

Kongsrud JA, Eilertsen MH, Alvestad T, Kongshavn K, Rapp HT (2016) New species of Ampharetidae (Annelida: Polychaeta) from the Arctic Loki Castle vent field. Deep Sea Research Part II Topical Studies in Oceanography. In press. Link

Lindholm M, Angles d'Auriac M, Thaulow J, Hobæk A (2016) Dancing around the pole: holarctic phylogeography of the Arctic fairy shrimp Branchinecta paludosa (Anostraca, Branchiopoda). Hydrobiologia 772 (1). Link

Lützen J, Itani G, JespersenÅ, Hong J-S, Rees DGlenner H (2016) On a new species of parasitic barnacle (Crustacea: Rhizocephala), Sacculina shiinoi sp. nov., parasatizing Japanese mud shrimps Upogebia spp. (Decapoda: Thalassinidea: Upogebiidae), including a description of a novel morphological structure in the Rhozocephala.  Zoological Science 33(2): 204-212. Link

Maldonado M, Aguilar R, Bannister RJ, Bell J, Conway KW, Dayton PK, Diaz C, Gutt J, Kelly M, Kenchington ELR, Leys SP, Pomponi SA, Rapp HT, Rüzler K, Tendal OS, Vacelet J, Young CM (2016) Sponge grounds as key marine habitats: a synthetic review of types, structure, functional roles and conservation concerns. In Rossi S, Bramanti L, Gori A, Orejas C. Marine Animal Forests – The Ecology of Benthic Biodiversity Hotspots. MeteorSpringer. 1000 pp.

Noever C, Olson A, Glenner H (2016) Two new cryptic and sympatric species of the king crab parasite Briarosaccus (Cirripedia: Rhizocephala) in the North Pacific. Zoological Journal of the Linnean Society 176(1), 3-14. Link

Noever C, Keiler J, Glenner H (2016) First 3D reconstruction of the rhizocephalan root system using MicroCT. Journal of Sea Research 113, 58-64. Link

Norderhaug KM, Angles d'Auriac M, Fagerli CW, Gundersen H, Christie, HC, Dahl K, Hobæk A (2016) Genetic diversity of the NE Atlantic sea urchin Strongylocentrotus droebachiensis unveils chaotic genetic patchiness possibly linked to local selective pressure. Marine Biology 163 (36). Link

Ommundsen A, Noever C, Glenner H (2016) Caught in the act: phenotypic consequences of a recent shift in feeding strategy of the shark barnacle Anelasma squalicola (Lovén, 1844). Zoomorphology 135:51-65 Link

Queirós JP, Ravara A, Eilertsen MH, Kongsrud JA, Hilário A (2016) Paramytha ossicola sp. nov. (Polychaeta, Ampharetidae) from mammal bones: reproductive biology and population structure. Deep Sea Research Part II Topological Studies in Oceanography. In press. Link

Rees DJ, Byrkjedal I, Sutton T (2016) Pruning the Pearlsides: Reconciling morphology and molecules in oceanic fishes (Maurolicus: Sternoptychidae).  Deep-Sea Research II (in press). Link

Sjøtun K, Heggøy E, Gabrielsen TM, Rueness J (2016) Dasya adela sp. nov. (Rhodophyta, Ceramiales), an enigmatic new Dasya from a landlocked fjord in southwest Norway. Phycological Research 64: 79-94.

Steen IH, Dahle H, Stokke R, Roalkvam I, Daae FL, Rapp HT, Pedersen RB, Thorseth IH (2016) Novel barite chimneys at the Loki’s Castle Vent Field shed light on key factors shaping microbial communities and functions in hydrothermal systems. Frontiers in Microbiology Vol 6, article 1510. Link

Vallmann K, Kivisild C, Lopp A, Rapp HT, Kelve M (2016) The stress protein HSP70 from the marine sponge Thenea muricataJournal of the Marine Biological Association of the UK.96(2): 573-581. Link

Viana DS, Figuerola J, Schwenk K, Manca M, Hobæk A, Mjelde M, Preston CD, Gornall RJ, Croft JM, King RA, Green AJ, Santamaría L (2016) Assembly mechanisms determining high species turnover in aquatic communities over regional and continental scales. Ecography 39(3).



Cardenas P, Rapp HT (2015) Demosponges from the northern Mid-Atlantic Ridge shed more light on the diversity and biogeography of North Atlantic deep-sea sponges. Journal of the Marine Biological Association of the UK. 95(7): 1475-1517. doi:10.1017/S0025315415000983

Carvalho F, Pomponi SA, Xavier JR (2015) Lithistid sponges of the upper bathyal of Madeira, Selvagens and Canary Islands with description of a new species of Isabella. Journal of the Marine Biological Association of the United Kingdom, 95(7), 1287-1296.

Castello-Branco C, Hestetun JTRapp HT, Hajdu E (2015) Taxonomy of Cladorhiza in the deep SW Atlantic: C. nicoleae sp. nov. and redescription of C. inversa (Cladorhizidae, Poecilosclerida, Demospongiae). Journal of the Marine Biological Association of the UK.96(2): 297-302. doi:10.1017/S0025315415000211

Cristobo J, Pomponi SA, Rios P, Xavier JR (2015) A new carnivorous sponge,Chondrocladia robertballardi sp. nov. (Porifera: Cladorhizidae) from two Northeast Atlantic seamounts. Journal of the Marine Biological Association of the United Kingdom, 95(7), 1345-1352.

Georgieva MN, Wiklund H, Bell JB, Eilertsen MH, Mills RA, Little CTS, Glover AG (2015) A chemosynthetic weed: the tubeworm Sclerolinum contortum is a bipolar, cosmopolitan species. BMC Evolutionary Biology 15:1-17. Link

Graça AP, Viana F, Bondoso J, Correia MI, Gomes L, Humanes M, Reis A, Xavier JR, Gaspar H, Lage OM (2015) The antimicrobial activity of heterotrophic bacteria isolated from the marine sponge Erylus deficiens (Astrophorida, Geodiidae). Front. Microbiol. 6, 389.

Hestetun JT, Fourt M, Vacelet J, Boury-Esnault N, Rapp HT (2015) Cladorhizidae (Porifera) of the deep Atlantic collected during Ifremer cruises, with a biogeographic overview of the Atlantic species. Journal of the Marine Biological Association of the UK 95(7): 1311-1342.http://dx.doi.org/10.1017/S0025315413001100

Meland K, Mees J, Porter M, Wittmann KJ (2015) Taxonomic review of the orders Mysida and Stygiomysida (Crustacea, Peracarida). PloS one10(4), e0124656.http://dx.doi.org/10.1371/journal.pone.0124656

Olsen BR, Troedsson C, Hadziavdic K, Pedersen RB, Rapp HT (2015) The influence of vent systems on pelagic eukaryotic micro-organism composition in the Nordic Seas. Polar Biology 38: 547-558.

Rapp HT (2015) Monograph of the calcareous sponges (Porifera, Calcarea) of Greenland. Journal of the Marine Biological Association of the United Kingdom, 95(7): 1395-1460.http://dx.doi.org/10.1017/S0025315413001070

Vallmann K, Kivisilid C, Lopp A, Rapp HT, Kelve M (2015) The stress protein HSP70 from the marine sponge Thenea muricata. Journal of the Marine Biological Association of the United Kingdom, 96: 573-581.

Sjøtun K, Husa V, Asplin L, Sandvik AD (2015) Climatic and environmental factors influencing occurrence and distribution of macroalgae – a fjord gradient revisited. Marine Ecology – Progress Series 532: 73-88

Taboada S, Riesgo A, Blasco G, Solà J, Xavier JR, López-Legentil S (2015) Development of 10 microsatellite markers for the Atlanto-Mediterranean sponge Petrosia ficiformis. Conservation Genetics Resources 7(4), 895-897.

Xavier JR, Cardenas P, Cristobo J, Van Soest R, Rapp HT (2015) Systematics and biodiversity of deep-sea sponges of the Atlanto-Mediterranean region. Journal of the Marine Biological Association of the United Kingdom, 95(7): 1285-1286.

Xavier JR, Tojeira I, Van Soest RWM (2015) On a hexactinellid sponge aggregation at the Great Meteor seamount (North-east Atlantic). Journal of the Marine Biological Association of the United Kingdom, 95(7), 1389-1394.

Van Syoc, Van Soest RWM, Xavier JR, Hooper JNA (2015) A Phylogenetic Overview of Sponge-inhabiting Barnacles and Their Host Specificity (Crustacea, Cirripedia). Proceedings of the California Academy of Sciences, 62(11), 331-357.



Angles d'Auriac MB, Hobæk A, Christie HC, Gundersen H, Fagerli CW, Haugstetter J, Norderhaug KM (2014) New microsatellite loci for the green sea urchin Strongylocentrotus droebachiensis using universal M13 labelled markers. BMC Research Notes 7(1).

Armitage C, Sjøtun K, Jensen KH (2014) Correlative evidence for competition between Fucus serratus and the introduced chlorophyte Codium fragile subsp. fragile on the southwest coast of Norway. Botanica Marina 57: 85-97.

Hadler-Jacobsen S, Byrkjedal I, Rees DJ, Orlov A (2014) Molecular and morphological variation in 'saddled' fathead sculpins (Psychrolutidae: Cottunculus) of northeast Atlantic, with a synonym of three species.  Journal of Fish Biology 85: 821-837. Link

Hardoim CCP, Cardinale M, Cúcio ACB, Esteves AIS, Berg G, Xavier JR, Cox CJ, Costa R (2014) Effects of sample handling and cultivation bias on the specificity of bacterial communities in keratose marine sponges. Frontiers in Microbiology 5, 611.

Husa V, Steen H, Sjøtun K (2014) Historical changes in macroalgal communities in Hardangerfjord (Norway). Marine Biology Research 10: 226-240.

Husa V, Kutti T, Ervik A, Sjøtun K, Kupka Hansen P, Aure J (2014) Regional impact from fin-fish farming in an intensive production area (Hardangerfjord, Norway). Marine Biology Research 10: 241-252

Leininger SD, Adamski M, Bergum B, Guder C, Liu J, Laplante M, Bråte J, Hoffmann F, Valero Fortunato SA, Jordal S, Rapp HT, Adamska M (2014) Developmental gene expression provides clues to relationships between sponge and eumetazoan body plans. Nature Communications. 5. 15 pages. Published 2014-05-20.

Leininger S, Adamski M, Bergum B, Guder C, Liu J, Laplante M, Bråte J, Hoffmann F, Fortunato S, Jordal S, Rapp HT, Adamska M (2014) Developmental gene expression indicates homology of poriferan and eumetazoan body plans. Nature Communications 5, article number 3905, doi:10.1038/ncomms4905

Olsen BR, Troedsson C, Hadziavdic K, Pedersen RB, Rapp HT (2014) A molecular gut content study of Themisto abyssorum (Amphipoda) from Arctic hydrothermal vent and cold seep systems. Molecular Ecology 23(15): 3877-3889. doi: 10.1111/mec.12511

Skaala Ø, Sjøtun K, Dahl E, Husa V, Bjørge A, Uiblein F (2014) Interactions between salmon farming and the ecosystem: Lessons from the Hardangerfjord, western Norway. Marine Biology Research 10: 199-202 (editorial note)

Rees DJNoeverC, Høeg JT, Ommundsen A, Glenner H (2014) On the origin of a novel parasitic feeding mode within suspension feeding barnacles.  Current Biology 24 (12): 1429–1434. Link 

Hadler-Jacobsen S, Byrkjedal I, Rees DJ, Orlov A (2014) Molecular and morphological variation in 'saddled' fathead sculpins (Psychrolutidae: Cottunculus) of northeast Atlantic, with a synonym of three species.  Journal of Fish Biology 85: 821-837.  doi:10.1111/jfb.12458

Rees DJ,  Glenner H (2014) Control region sequences indicate that multiple externae represent multiple infections by Sacculina carcini (Cirripedia: Rhizocephala).  Ecology and Evolution 4(16): 3290-3297. Link

Viana DS, Santamaría L, Schwenk K, Manca M, Hobæk A, Mjelde M, Preston CD, Gornall RJ, Croft JM, King RA, Green AJ, Figuerola J (2014) Environment and biogeography drive aquatic plant and cladoceran species richness across Europe. Freshwater Biology 59 (10).



Cardenas P, Rapp HT, Klitgaard AB, Best M, Thollesson M, Tendal OS (2013) Taxonomy, biogeography and DNA barcodes for Geodia species (Porifera, Demospongiae, Astrophorida) in the Atlantic Boreo-Arctic region. Zoological Journal of the Linnean Society169(2): 251-311. Doi: 10.1111/zoj.12056

Cardenas P, Rapp HT (2013) Disrupted spiculogenesis in deep-water Geodiidae (Porifera, Demospongiae) growing in shallow waters. Invertebrate Biology 132(3): 173-194. DOI: 10.1111/ivb.12027

Cárdenas P, Rapp HT, Klitgaard AB, Best M, Thollesson M, Tendal OS (2013) Taxonomy, biogeography and DNA barcodes of Geodia species (Porifera, Demospongiae, Tetractinellida) in the Atlantic boreo-arctic region. Zoological Journal of the Linnean Society 169: 251-311.

Cavalcanti FF, Rapp HT, Klautau M (2013) Taxonomic revision of the genus LeucascusDendy, 1892 (Porifera: Calcarea) with revalidation of the genus Ascoleucetta Dendy , Frederick, 1924 and description of three new species. Zootaxa 3619(3): 275-314.

Eilertsen MH, Malaquias MAE (2013a) Systematic revision of the genus Scaphander (Gastropoda, Cephalaspidea) in the Atlantic Ocean with a molecular phylogenetic hypothesis. Zoological Journal of the Linnean Society, 16 7, 389-429.

Eilertsen MH, Malaquias MAE (2013b) Unique digestive system, trophic specialization, and diversification in the deep-sea gastropod genus Scaphander. Biological Journal of the Linnean Society, 109, 512-525.

Klautau M, Azevedo F, Cóndor-Luján B, Rapp HT, Collins A, Russo CAM (2013) A molecular phylogeny of the Order Clathrinida rekindles and refines Haeckel’s taxonomic proposal for calcareous sponges. Integrative and Comparative Biology 53(3): 447-461.  doi:10.1093/icb/ict039

Meland K, Aas PO (2013) A taxonomical review of the Gnathophausia (Crustacea, Lophogastrida), with new records from the northern mid-Atlantic ridge. Zootaxa, 3664 (2).

Olsen BR, Troedsson C, Hadziavdic K, Pedersen RB, Rapp HT (2013) A molecular gut content study of Themisto abyssorum (Amphipoda) from Arctic hydrothermal vent and cold seep systems. Molecular Ecology 23: 3877-3889

Poulsen JY, Byrkjedal I, Willassen E, Rees D, Takeshima H, Satoh TP, Shinohara G, Nishida M, Miya M (2013) Mitogenomic sequences and evidence from unique gene rearrangements corroborate evolutionary relationships of myctophiformes (Neoteleostei).  BMC Evolutionary Biology 13:111. Link

Rapp HT, Göcke C, Tendal OS, Janussen D (2013) Two new species of calcareous sponges (Porifera, Calcarea) from the deep Antarctic Eckström Shelf and a revised list of species found in Antarctic waters. Zootaxa 3692(1): 149-159.

Rees D, Byrkjedal I (2013) Lack of taxonomic information from parietal spine size invalidates subspecies in the Atlantic hookear sculpin Artediellus atlanticusJournal of Fish Biology 82, 277-285. Link

Regmi BP, Wivegh JS, Hobæk A (2013) Population decline and life-cycle changes in a phantom midge (Chaoborus flavicans) after introduction of planktivorous fish. Freshwater Biology 58 (7).

Schöttner S, Hoffmann F, Cardenas P, Rapp HT, Boetius A, Ramette A (2013) The divergence within host-associated bacterial communities reflects sponge diversification in cold-water coral reefs. PLoS ONE 8(2): e55505. doi:10.1371/journal.pone.0055505

Sweetman AK, Levin LA, Rapp HTSchander C (2013) Food web structure at hydrothermal vents on the southern Mohn’s Ridge, Arctic Ocean. Marine Ecology Progress Series 473: 115-131.

Tandberg AHS, Rapp HTSchander C, Vader W. (2013) A new species of Exitomelita (Amphipoda: Melitidae) from a deep water woodfall in the northern Norwegian Sea. Journal of Natural History. 47(25-28): 1875-1889DOI:10.1080/00222933.2012.725778



Bengtsson MM, Sjøtun K, Lanzén A, Øvreås L (2012) Bacterial diversity in relation to secondary production and succession on surfaces of the kelp Laminaria hyperborea. The ISME Journal 6: 2188-2198

Cardenas P, Rapp HT (2012) A review of Norwegian Astrophorida with streptasters (Porifera, Demospongiae), new records and a new species. Zootaxa 3253: 1-53.

Fortunato S, Adamski M, Bergum B, Guder C, Jordal S, Leininger S, Zwafink C, Rapp HT, Adamska M (2012) Genome-wide analysis of the Sox family in the calcareous sponge Sycon ciliatum: multiple genes with unique developmental and adult expression patterns. EvoDevo 3:14. Doi:10.1186/2041-9139-3-14.

Hobæk A, Løvik JE, Rohrlack T, Moe SJ, Grung M, Bennion H, Clarke G, Piliposyan GT (2012) Eutrophication, recovery and temperature in Lake Mjøsa: detecting trends with monitoring data and sediment records. Freshwater Biology 57 (10).

Kongsrud JA, Rapp HT (2012) Nicomache (Loxochona) lokii sp. nov. (Annelida, Polychaeta, Maldanidae) from the Loki’s Castle vent field – an important structure builder in an Arctic vent system. Polar Biology 35(2): 161-170.

Appeltans W, Ahyong, ST, Anderson G, Angel MV, Artois T,…, Meland K, Wilson S , Costello MJ (2012) The magnitude of global marine species diversity. Current Biology 22 (23). http://dx.doi.org/10.1016/j.cub.2012.09.036

Olsen BR, Dahlgren K, Schander C, Båmstedt U, Rapp HT, Troedsson C (2012) Identification of specific prey items in the calanoid copepod Limnocalanus macrurususing Denaturing High-Performance Liquid Chromatography (DHPLC) assay. Journal of Plankton Research 34(4): 277-285.

Plotkin A, Gerasimova E, Rapp HT (2012) Phylogenetic reconstruction of the Polymastiidae (Demospongiae: Hadromerida) based on morphology. Hydrobiologia 687: 21-41.

Radax R, Rattei T, Lanzen A, Bayer C, Rapp HT, Urich T, Schleper C (2012) Metatranscriptomics of the marine sponge Geodia barretti: Tackling phylogeny and function of its microbial community. Environmental Microbiology 14(5): 1308-1324.

Radax R, Hoffmann F, Rapp HT, Leininger S, Schleper C (2012) Ammonia-oxidizing archaea as main drivers of nitrification in cold-water sponges. Environmental Microbiology14(4): 909-923.

Tandberg AHS, Rapp HTSchander C, Vader W, Sweetman AK, Berge J (2012) Exitomelita sigynae gen et sp nov – a new amphipod from the Arctic Loki Castle vent field with potential gill ectosymbionts. Polar Biology 35(5): 705-716.

Valero Fortunato, S A, Adamski, M, Bergum, B, Guder, C, Jordal, S, Leininger, SD, Zwafink, C, Rapp, HT, Adamska, M (2012) Genome-wide analysis of the Sox family in the calcareous sponge sponge Sycon ciliatum: multiple genes with unique developmental and adult expression patterns. Evodevo.



Bengtsson MM, Sjøtun K, Storesund JE, Øvreås L (2011) Utilization of kelp-derived carbon sources by kelp surface-associated bacteria. Aquatic Microbial Ecology 62: 191-199.

Bennion H, Simpson GL, Anderson NJ, Clarke G, Dong X, Hobæk A, Guilizzoni P, Marchetto A, Sayer CD, Thies H, Tolotti M (2011) Defining ecological and chemical reference conditions and restoration targets for nine European lakes. Journal of Paleolimnology 45 (4).

Brattegard T, Høisæter T, Sjøtun K, Fenchel T, Uiblein F (2011) Norwegian Fjords: from Natural History to Ecosystem Ecology and beyond. Marine Biology Research 7: 421-424 (editorial note).

Cardenas P, Xavier J, Reveillaud J, Schander CRapp HT (2011) Molecular phylogeny of the Astrophorida (Porifera, Demospongiae) reveals an unexpected high level of spicule homoplasy. PLoS ONE 6(4): e18318. doi:10.1371/journal.pone.0018318

Eilertsen M, Norderhaug KM, Sjøtun K (2011) Does the amphipod fauna associated to epiphytes on kelp (Laminaria hyperborea) change with depth? Marine Biology Research 7: 224-234

Høisæter T, Sneli J-A, Schander CRapp HT, Berggren M (2011) Xandarovula patula(Pennant, 1777) (Gastropoda, Ovulidae) new to Scandinavia. Marine Biodiversity Records 4 (e58): 1-4. DOI:10.1017/S1755267211000583

Janussen D, Rapp HT (2011) Redescription of Jenkina articulata Brøndsted from the deep Eckström Shelf, E-Weddell Sea, Antarctica and a comment on the possible mass occurrence of this species. Deep Sea Research Part II 58: 2022-2026.

Ahyong ST, Lowry J, Alonso M, Bamber RN, Boxshall GA, Castro P, Gerken S, Karaman GS, Goy JW, Jones DS, Meland K, Rogers C, Svavarsson J (2011) Subphylum Crustacea Brünnich, 1772. In: Zhang, Z.-Q. (Ed.) Animal biodiversity: An outline of higher-level classification and survey of taxonomic richness. Zootaxa 3148.

Rapp HT, Janussen D, Tendal OS (2011) Calcareous sponges from abyssal and bathyal depths in the Weddell Sea, Antarctica.  Deep Sea Research Part II 58: 58-67.

Rossi AL, Russo CAM, Solé-Cava AM, Rapp HT, Klautau M (2011) Phylogenetic signal in the evolution of body colour and spicule skeleton in calcareous sponges. Zoological Journal of the Linnean Society 163(4): 1026-1034.

Sjøtun K, Heldal HE, Brakstad, DS (2011) Differential concentration of Technetium-99 (99Tc) in common intertidal molluscs with different food habits. Marine Pollution Bulletin 62: 2420-2426.