- E-mailHans.Rapp@uib.no
- Phone+47 55 58 44 13+47 913 67 187
- Visitor AddressThormøhlensgt. 53 A/B
- Postal AddressPostboks 78035020 Bergen
My research focuses on taxonomy and systematics of marine invertebrates in general. My main expertise is in the taxonomy of sponges based on a combination of traditional morphological methods as well as molecular/phylogenetic methods. My research has focused on the taxonomy calcareous sponges as well as taxonomy and ecology of demosponges forming sponge grounds in temperate and Arctic waters, including sponge-microbial relationships. Since the discovery of hydrothermal vents on the Arctic Mid Ocean Ridge my work has been centred around the description of a novel and specialized Arctic vent fauna on this ridge system, including species composition, zoogeography, symbioses and physiological adaptations. The studies of the vent fauna are compared to similar studies on cold seeps, mud volcanoes and whale/wood falls aiming to describe the phylogeography and colonization- and immigration patterns of the fauna in reduced habitats.
Journal articles
- 2019. Description of new chiactine-bearing sponges provides insights into the higher classification of Calcaronea (Porifera: Calcarea). Zootaxa. 4615: 201-251. doi: 10.11646/zootaxa.4615.2.1
- 2019. Glass sponge grounds on the Scotian Shelf and their associated biodiversity. Marine Ecology Progress Series. 614: 91-109. doi: 10.3354/meps12903
- 2019. Deep-Sea Carnivorous Sponges From the Mariana Islands. Frontiers in Marine Science. 1-22. Published 2019-07-10. doi: 10.3389/fmars.2019.00371
- 2018. Increased taxon sampling provides new insights into the phylogeny and evolution of the subclass Calcaronea (Porifera, Calcarea). Organisms Diversity & Evolution. doi: 10.1007/s13127-018-0368-4
- 2018. Predicted distribution of the glass sponge Vazella pourtalesi on the Scotian Shelf and its persistence in the face of climatic variability. PLOS ONE. 13. doi: 10.1371/journal.pone.0205505
- 2018. Sponge-derived silica for tissue regeneration: Bioceramics of deep-sea sponge. Materials Today. 21: 577-578. doi: 10.1016/j.mattod.2018.03.025
- 2018. Genetic connectivity from the Arctic to the Antarctic: Sclerolinum contortum and Nicomache lokii (Annelida) are both widespread in reducing environments. Scientific Reports. 8:4810: 1-12. doi: 10.1038/s41598-018-23076-0
- 2018. Porifera collection of the italian national antarctic museum (MNA), with an updated checklist from Terra Nova Bay (Ross Sea). ZooKeys. 2018: 137-156. doi: 10.3897/zookeys.758.23485
- 2018. Temporal changes in benthic macrofauna on the west coast of Norway resulting from human activities. Marine Pollution Bulletin. 128: 483-495. doi: 10.1016/j.marpolbul.2018.01.063
- 2018. Oceanographic setting and short-timescale environmental variability at an Arctic seamount sponge ground. Deep Sea Research Part I: Oceanographic Research Papers. 138: 98-113. doi: 10.1016/j.dsr.2018.06.007
- 2018. Monoculodes bousfieldi sp.n. from the Arctic hydrothermal vent Loki´s Castle. Marine Biodiversity. 48: 927-937. doi: 10.1007/s12526-018-0869-6
- 2017. Building a comprehensive barcode reference library of the Norwegian Echinodermata through NorBOL: an ongoing effort. Genome. 60: 906-906. Published 2017-11-13. doi: /10.1139/gen-2017-0178
- 2017. Do ampharetids take sedimented steps between vents and seeps? Phylogeny and habitat-use of Ampharetidae (Annelida, Terebelliformia) in chemosynthesis-based ecosystems. BMC Evolutionary Biology. 17: 1-15. doi: 10.1186/s12862-017-1065-1
- 2017. Metabolic profiling as a screening tool for cytotoxic compounds: Identification of 3-alkyl pyridine alkaloids from sponges collected at a shallow water hydrothermal vent site North of Iceland. Marine Drugs. 15:52: 1-14. doi: 10.3390/md15020052
- 2017. Benthos of Karasik Seamount. Berichte zur Polar- und Meeresforschung. 706: 92-120.
- 2017. A review of carnivorous sponges (Porifera: Cladorhizidae) from the boreal North Atlantic and Arctic. Zoological Journal of the Linnean Society. 181: 1-69. doi: 10.1093/zoolinnean/zlw022
- 2017. Polymastiidae (Porifera: Demospongiae) of the Nordic and Siberian Seas. Journal of the Marine Biological Association of the United Kingdom. 98: 1273-1335. doi: 10.1017/S0025315417000285
- 2017. 3,7-Isoquinoline quinones from the ascidian tunicate Ascidia virginea. Zeitschrift für Naturforschung C - A Journal of Biosciences. 72: 259-264. doi: 10.1515/znc-2017-0012
- 2017. Amphipods from the arctic hydrothermal vent field "Loki's Castle", Norwegian Sea. Biodiversity Journal. 8: 553-554.
- 2016. 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 United Kingdom. 96: 297-303. doi: 10.1017/S0025315415000211
- 2016. The Microbiome and Occurrence of Methanotrophy in Carnivorous Sponges. Frontiers in Microbiology. 7:1781: 1-14. Published 2016-11-09. doi: 10.3389/fmicb.2016.01781
- 2016. The cladorhizid fauna (Porifera, Poecilosclerida) of the Caribbean and adjacent waters. Zootaxa. 4175: 521-538. Published 2016-10-19. doi: 10.11646/zootaxa.4175.6.2
- 2016. Carnivorous sponges (Porifera, Cladorhizidae) from the Southwest Indian Ocean Ridge seamounts. Deep-sea research. Part II, Topical studies in oceanography. 137: 166-189. Published 2016-03-19. doi: 10.1016/j.dsr2.2016.03.004
- 2016. The systematics of carnivorous sponges. Molecular Phylogenetics and Evolution. 94: 327-345. doi: 10.1016/j.ympev.2015.08.022
- 2016. The relative abundance and transcriptional activity of marine sponge-associated microorganisms emphasizing groups involved in sulfur cycle. Microbial Ecology. Published ahead of print: 668-676. doi: 10.1007/s00248-016-0836-3
- 2016. New species of Ampharetidae (Annelida: Polychaeta) from the Arctic Loki Castle vent field. Deep-sea research. Part II, Topical studies in oceanography. 137: 232-245. doi: 10.1016/j.dsr2.2016.08.015
- 2016. Polymastiidae (Demospongiae: Hadromerida) with ornamented exotyles: a review of morphological affinities and description of a new genus and three new species. Journal of the Marine Biological Association of the United Kingdom. 97: 1351-1406. doi: 10.1017/S0025315416000655
- 2016. Molecular phylogenies challenge the classification of Polymastiidae (Porifera, Demospongiae) based on morphology. Organisms Diversity & Evolution. 17: 45-66. Published 2016-09-01. doi: 10.1007/s13127-016-0301-7
- 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. 6:1510. doi: 10.3389/fmicb.2015.01510
- 2016. The stress protein HSP70 from the marine sponge Thenea muricata. Journal of the Marine Biological Association of the United Kingdom. 96: 573-581. doi: 10.1017/S0025315415002234
- 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 United Kingdom. 95: 1475-1516. doi: 10.1017/S0025315415000983
- 2015. Cladorhizidae (Porifera, Demospongiae, Poecilosclerida) of the deep Atlantic collected during Ifremer cruises, with a biogeographic overview of the Atlantic species. Journal of the Marine Biological Association of the United Kingdom. 95: 1311-1342. doi: 10.1017/S0025315413001100
- 2015. The influence of vent systems on pelagic eukaryotic micro-organism composition in the Nordic Seas. Polar Biology. 38: 547-558. Published 2014-11-25. doi: 10.1007/s00300-014-1621-8
- 2015. A monograph of the calcareous sponges (Porifera, Calcarea) of Greenland. Journal of the Marine Biological Association of the United Kingdom. 95: 1395-1459. doi: 10.1017/S0025315413001070
- 2015. Systematics and biodiversity of deep-sea sponges of the Atlanto-Mediterranean region. Journal of the Marine Biological Association of the United Kingdom. 95: 1285-1286. doi: 10.1017/S0025315415001514
- 2014. Developmental gene expression provides clues to relationships between sponge and eumetazoan body plans. Nature Communications. 5. 15 pages. Published 2014-05-20. doi: 10.1038/ncomms4905
- 2013. Taxonomic revision of Leucascus Dendy, 1892 (Porifera: Calcarea) with revalidation of Ascoleucetta Dendy & Frederick, 1924 and description of three new species. Zootaxa. 3619: 275-314.
- 2013. Disrupted spiculogenesis in deep-water Geodiidae (Porifera, Demospongiae) growing in shallow waters. Invertebrate biology.. 132: 173-194. doi: 10.1111/ivb.12027
- 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. doi: 10.1111/zoj.12056
- 2013. A molecular phylogeny for the order Clathrinida rekindles and refines Haeckel's taxonomic proposal for calcareous sponges. Integrative and Comparative Biology. 53: 447-461. doi: 10.1093/icb/ict039
- 2013. A molecular gut content study of Themisto abyssorum (Amphipoda) from Arctic hydrothermal vent and cold seep systems. Molecular Ecology. 23: 3877-3889. doi: 10.1111/mec.12511
- 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: 149-159. doi: 10.11646/zootaxa.3692.1.9
- 2013. Relationships between host phylogeny, host type and bacterial community diversity in cold-water coral reef sponges. PLOS ONE. 8. doi: 10.1371/journal.pone.0055505
- 2013. Faunal trophic structure at hydrothermal vents on the southern Mohn's Ridge, Arctic Ocean. Marine Ecology Progress Series. 473: 115-131. doi: 10.3354/meps10050
- 2013. A new species of Exitomelita (Amphipoda: Melitidae) from a deep-water wood fall in the northern Norwegian Sea. Journal of Natural History. 47: 1875-1889. doi: 10.1080/00222933.2012.725778
- 2012. A review of Norwegian streptaster-bearing Astrophorida (Porifera: Demospongiae: Tetractinellida), new records and a new species. Zootaxa. 3253. 1-53.
- 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: 161-170. doi: 10.1007/s00300-011-1048-4
- 2012. PCR-DHPLC assay for the identification of predator-prey interactions. Journal of Plankton Research. 34: 277-285. Published 2012-01-27. doi: 10.1093/plankt/fbr110
- 2012. Phylogenetic reconstruction of the Polymastiidae (Demospongiae: Hadromerida) based on morphology. Hydrobiologia. 687: 21-41. doi: 10.1007/s10750-011-0823-0
- 2012. Ammonia-oxidizing archaea as main drivers of nitrification in cold-water sponges. Environmental Microbiology. 14: 909-923. doi: 10.1111/j.1462-2920.2011.02661.x
- 2012. Metatranscriptomics of the marine sponge Geodia barretti: tackling phylogeny and function of its microbial community. Environmental Microbiology. 14: 1308-1324. doi: 10.1111/j.1462-2920.2012.02714.x
- 2012. Exitomelita sigynae gen. et sp. nov.: a new amphipod from the Arctic Loki Castle vent field with potential gill ectosymbionts. Polar Biology. 35: 705-716. doi: 10.1007/s00300-011-1115-x
- 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. 3. doi: 10.1186/2041-9139-3-14
- 2011. Molecular phylogeny of the Astrophorida (Porifera, Demospongiae) reveals an unexpected high level of spicule homoplasy. PLOS ONE. 6. 18 pages. doi: 10.1371/journal.pone.0018318
- 2011. Xandarovula patula (Gastropoda: Ovulidae) new to Scandinavia. Marine Biodiversity Records. 4. doi: 10.1017/S1755267211000583
- 2011. Redescription of Jenkina articulata Brondsted from the deep Eckstrom Shelf, E-Weddell Sea, Antarctica and a comment on the possible mass occurrence of this species. Deep-sea research. Part II, Topical studies in oceanography. 58: 2022-2026. doi: 10.1016/j.dsr2.2011.01.007
- 2011. Calcareous sponges from abyssal and bathyal depths in the Weddell Sea, Antarctica. Deep-sea research. Part II, Topical studies in oceanography. 58: 58-67. doi: 10.1016/j.dsr2.2010.05.022
- 2011. Phylogenetic signal in the evolution of body colour and spicule skeleton in calcareous sponges. Zoological Journal of the Linnean Society. 163: 1026-1034. doi: 10.1111/j.1096-3642.2011.00739.x
- 2010. Molecular taxonomy and phylogeny of the Geodiidae (Porifera, Demospongiae, Astrophorida) - combining phylogenetic and Linnaean classification. Zoologica Scripta. 39: 89-106. doi: 10.1111/j.1463-6409.2009.00402.x
- 2010. Discovery of a black smoker vent field and vent fauna at the Arctic Mid-Ocean Ridge. Nature Communications. 1. doi: 10.1038/ncomms1124
- 2010. Osedax mucofloris (Polychaeta, Siboglinidae), a bone-eating marine worm new to Norway. Fauna Norvegica. 30: 5-8. doi: 10.5324/fn.v30i0.632
- 2010. A case of co-occurance between Sclerolinum pogonophoran (Siboglinidae: Annelida) and Xylophaga (Bivalvia) from a north-east Atlantic wood-fall. Marine Biodiversity Records. 3. 3 pages. doi: 10.1017/S1755267210000394
- 2010. The fauna of hydrothermal vents on the Mohn Ridge (North Atlantic). Marine Biology Research. 6: 155-171. doi: 10.1080/17451000903147450
- 2009. Morphological description and DNA barcodes of shallow-water Tetractinellida (Porifera: Demospongiae) from Bocas del Toro, Panama, with description of a new species. Zootaxa. 2276: 1-39.
- 2009. Molecular taxonomy and phylogeny of the Geodiidae (Porifera, Demospongiae, Astrophorida) – combining phylogenetic and Linnaean classification. Zoologica Scripta. 39: 89-106. doi: 10.1111/j.1463-6409.2009.00402.x
- 2009. Complex nitrogen cycling in the sponge Geodia barretti. Environmental Microbiology. 11: 2228-2243. doi: 10.1111/j.1462-2920.2009.01944.x
- 2009. Discovery of the Loki’s Castle Vent field at the ultra-slow spreading Arctic Mid-ocean ridge. Geochimica et Cosmochimica Acta. 73: A1008-A1008.
- 2009. Ett inferno på havsbotten. Havsutsikt. 3. 6-7.
- 2009. Inter- and intra-habitat bacterial diversity associated with cold-water corals. The ISME Journal. 3: 756-759. doi: 10.1038/ismej.2009.15
- 2009. The chiton Hanleya nagelfar (Polyplacophora, Mollusca) and its association with sponges in the European Northern Atlantic. Marine Biology Research. 5: 408-411. doi: 10.1080/17451000802572394
- 2009. Revalidation of Leucetta floridana (Haeckel, 1872) (Porifera, Calcarea): a widespread species in the tropical western Atlantic. Zoological Journal of the Linnean Society. 157: 1-16. doi: 10.1111/j.1096-3642.2009.00522.x
- 2008. Organic matter release by cold water corals and its implication for fauna-microbe interaction. Marine Ecology Progress Series. 372: 67-75. doi: 10.3354/meps07724
- 2007. Redescription and resurrection of Pachymatisma normani (Demospongiae: Geodiidae), with remarks on the genus Pachymatisma. Journal of the Marine Biological Association of the United Kingdom. 87: 1511-1525. doi: 10.1017/S0025315407058286
- 2007. Similar reproductive cycles and life-history traits in congeneric bivalves with different modes of nutrition. Marine Ecology. 28: 183-192. doi: 10.1111/j.1439-0485.2006.00134.x
- 2006. Monitoring microbial community composition by fluorescence in situ hybridization during cultivation of the marine cold-water sponge Geodia barretti. Marine Biotechnology. 8: 373-379. doi: 10.1007/s10126-006-5152-3
- 2006. Calcareous sponges of the genera Clathrina and Guancha (Calcinea, Calcarea, Porifera)of Norway (north-east Atlantic) with the description of five new species. Zoological Journal of the Linnean Society. 147: 331-365.
- 2005. Oxygen dynamics in choanosomal sponge explants. Marine Biology Research. 1: 160-163. doi: 10.1080/17451000510019006
- 2005. An anaerobic world in sponges. Geomicrobiology Journal. 22: 1-10. doi: 10.1080/01490450590922505
- 2004. Sedimentary inclusions in the deep-water sponge Geodia barretti (Geodiidae, Demospongiae) from the Korsfjord, western Norway. Sarsia. 89: 245-252.
- 2004. RoxAnn bottom classification system, sidescan sonar and video-sledge; spatial resolution and their use in assessing trawling impacts. ICES Journal of Marine Science. 61: 53-63.
- 2004. The first record of the genus Leucascus Dendy, 1892 from the Atlantic Ocean, with description of Leucascus lobatus sp. nov. (Porifera, Calcarea) from Greenland. Steenstrupia. 28: 119-127.
- 2003. Growth and regeneration in cultivated fragments of the boreal deep water sponge Geodia barretti Bowerbank, 1858 (Geodiidae, Tetractinellida, Demospongiae). Journal of Biotechnology. 100: 109-118.
- 2003. Das Ende eines Mythos: Über das Gedeihen der Kalkschwämme in grossen Meerestiefen. Natur und Museum. 133: 337-342.
- 2003. A myth vanished: Calcareous sponges are alive and well at abyssal depths. Deep-Sea Newsletter. 32. 17-19.
- 2002. COBICE, kalksvampe og Zoologisk Museums grønlandske samlinger. Dyr i natur og museum. 2. 29-31.
- 2001. Two new species of Clathrina (Porifera, Calcarea)from the Norwegian coast. Sarsia. 86: 69-74.
Reports and theses
- 2016. Environmental challenges related to offshore mining and gas hydrate extraction. Miljødirektoratet. 28 pages.
- 2015. Systematisk oversikt i faunistikk. BI1002 Faunistikk og floristikk. Utgave 3.0. Institutt for biologi, NTNU, Trondheim. 338 pages.
- 2015. Svamper. Norsk rødliste for arter 2015. Artsdatabanken, Trondheim. 193 pages.
- 2004. Systematisk oversikt i faunistikk. BI1002 Faunistikk og floristikk i norske økosystemer. 2. utgave. Institutt for biologi, NTNU, Trondheim. 322 pages.
- 2004. Systematisk oversikt i Faunistikk. MNKBI 102 Faunistikk og floristikk i norske økosystemer. NTNU, Trondheim. 322 pages.
- 2004. A revision of calcareous sponges (Porifera, Calcarea) in coast and shelf areas of Norway and Greenland. Thesis submitted in partial fulfilment of the requirements of the degree of Dr. scient.. -. 159 pages.
- 2003. Correlation between environmental gradients and the abundance of selected marine invertebrates. IFM rapport. 7. Institutt for fiskeri- og marinbiologi, Universitetet i Bergen, Bergen. 28 pages.
- 2001. Systematisk oversikt i faunistikk. MNKBI 102 Faunistikk og floristikk i norske økosystemer. Zoologisk institutt, NTNU, Trondheim. 246 pages.
- 2001. Systematisk oversikt i faunistikk. MNKBI 102 Faunistikk og floristikk i norske økosystemer. Zoologisk institutt, NTNU, Trondheim. 246 pages.
- 1999. Kalksvamper (Porifera: Calcarea) i Trondheimsfjorden. Taksonomi, forekomst og generell biologi. [Mangler utgivernavn].
Book sections
- 2016. Sponge grounds as key marine habitats: a synthetic review of types, structure, functional roles and conservation concerns. Sponge grounds, pages . In:
- 2016. Marine Animal Forests: The Ecology of Benthic Biodiversity Hotspots. Springer Publishing Company. 1000 pages. ISBN: 978-3-319-17001-5.
- 2007. Sexual reproduction of Geodia barretti Bowerbank, 1858 (Porifera, Astrophorida) in two Scandinavian fjords. Kapittel/artikkel, pages 613-620. In:
- 2007. Porifera Research. Biodiversity, Innovation and Sustainability. 684 pages. ISBN: 978-85-7427-023-4.
- 2006. Svamper - Porifera. Kapittel, pages 177-182. In:
- 2006. Norsk Rødliste 2006 - 2006 Norwegian Red List. 416 pages. ISBN: 82-92838-00-7.
- 2006. Svamper. Porifera. Kapittel, pages 177-182. In:
- 2006. Norsk Rødliste 2006. 416 pages. ISBN: 978-82-92838-00-6.
- 2005. Immediate effects of experimental otter trawling on a sub-Arctic benthic assemblage inside Bear Island fishery protection zone in the Barents Sea. Kapittel, pages 519-528. In:
- 2005. Benthic habitats and the effects of fishing. American Fisheries Society. 890 pages. ISBN: 1-888569-60-3.
- 2000. Dyrelivet på fjordbunnen. 133-148. In:
- 2000. Trondheimsfjorden. Tapir Akademisk Forlag.
- 2000. Dyrelivet på fjordbunnen. 133-148. In:
- 2000. Trondheimsfjorden. ISBN: 82-519-1548-1.
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