Blar i Bergen Open Research Archive på forfatter "Roberts, Emyr Martyn"
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Beyond the tip of the seamount: Distinct megabenthic communities found beyond the charismatic summit sponge ground on an arctic seamount (Schulz Bank, Arctic Mid-Ocean Ridge)
Meyer, Heidi Kristina; Davies, A.J.; Roberts, Emyr Martyn; Xavier, Joana R.; de Azevedo Ribeiro, Pedro Miguel; Glenner, Henrik; Birkely, sten richard; Rapp, Hans Tore (Journal article; Peer reviewed, 2023)Our understanding of the benthic communities on arctic seamounts and descriptions of such communities in habitat classification systems are limited. In recent years, Schulz Bank (73°52′N 7°30′E), a seamount on the Arctic ... -
Biodiversity, environmental drivers, and sustainability of the global deep-sea sponge microbiome
Busch, Kathrin; Slaby, Beate M.; Bach, Wolfgang; Boetius, Antje; Clefsen, Ina; Colaço, Ana; Creemers, Marie; Cristobo, Javier; Federwisch, Luisa; Franke, Andre; Gavriilidou, Asimenia; Hethke, Andrea; Kenchington, Ellen; Mienis, Furu; Mills, Sadie; Riesgo, Ana; Ríos, Pilar; Roberts, Emyr Martyn; Sipkema, Detmer; Pita, Lucía; Schupp, Peter J.; Xavier, Joana R.; Rapp, Hans Tore; Hentschel, Ute (Journal article; Peer reviewed, 2022)In the deep ocean symbioses between microbes and invertebrates are emerging as key drivers of ecosystem health and services. We present a large-scale analysis of microbial diversity in deep-sea sponges (Porifera) from ... -
Climate change winner in the deep sea? Predicting the impacts of climate change on the distribution of the glass sponge Vazella pourtalesii
Beazley, Lindsay; Kenchington, Ellen; Murillo, Francisco Javier; Brickman, David; Wang, Zeliang; Davies, Andrew; Roberts, Emyr Martyn; Rapp, Hans Tore (Journal article; Peer reviewed, 2021)Shallow-water sponges are often cited as being ‘climate change winners’ due to their resiliency against climate change effects compared to other benthic taxa. However, little is known of the impacts of climate change on ... -
Drivers of Megabenthic Community Structure in One of the World’s Deepest Silled-Fjords, Sognefjord (Western Norway)
Meyer, Heidi Kristina; Roberts, Emyr Martyn; Mienis, Furu; Rapp, Hans Tore (Journal article; Peer reviewed, 2020-06-09)The Sognefjord is the longest (205 km) and deepest (1308 m) fjord in Norway, and the second-longest in the world. Coast-fjord exchange in Sognefjord is limited by a seaward sill at 170 m water depth, which causes a clear ... -
Environmental Change at Deep-Sea Sponge Habitats Over the Last Half Century: A Model Hindcast Study for the Age of Anthropogenic Climate Change
Samuelsen, Annette; Schrum, Corinna; Yumruktepe, Veli Caglar; Daewel, Ute; Roberts, Emyr Martyn (Journal article; Peer reviewed, 2022-03-24)Deep-sea sponges inhabit multiple areas of the deep North Atlantic at depths below 250 m. Living in the deep ocean, where environmental properties below the permanent thermocline generally change slowly, they may not easily ... -
The First Cut Is the Deepest: Trawl Effects on a Deep-Sea Sponge Ground Are Pronounced Four Years on
Morrison, Katelin M.; Meyer, Heidi Kristina; Roberts, Emyr Martyn; Rapp, Hans Tore; Colaço, Ana; Pham, Christopher K. (Journal article; Peer reviewed, 2020)Few studies have described the effects of physical disturbance and post-recovery of deep-sea benthic communities. Here, we explore the status of deep-sea sponge ground communities four years after being impacted by an ... -
Long-term Observations Reveal Environmental Conditions and Food Supply Mechanisms at an Arctic Deep-Sea Sponge Ground
Hanz, Ulrike; Roberts, Emyr Martyn; Duineveld, Gerard; Davies, Andrew; van Haren, Hans; Rapp, Hans Tore; Reichart, Gert-Jan; Mienis, Furu (Journal article; Peer reviewed, 2021)Deep-sea sponge grounds are hotspots of benthic biomass and diversity. To date, very limited data exist on the range of environmental conditions in areas containing deep-sea sponge grounds and which factors are driving ... -
Secchi disk measurements in turbid water
Bowers, David George; Roberts, Emyr Martyn; Hoguane, António Mubango; Fall, Kelsey A.; Massey, Grace M.; Friedrichs, Carl T. (Journal article; Peer reviewed, 2020)In the classical theory of the Secchi disk depth, diffuse sunlight falling on the disk is reflected back to the observer's eye along the most direct route, as a beam. The disappearance depth, ZSD, of the disk is then ... -
Spatial patterns of arctic sponge ground fauna and demersal fish are detectable in autonomous underwater vehicle (AUV) imagery
Meyer, Heidi Kristina; Roberts, Emyr Martyn; Rapp, Hans Tore; Davies, Andrew J (Peer reviewed; Journal article, 2019-10-10)Deep-sea sponge grounds are important habitats that provide several ecosystem services, yet relatively little is known about their distribution and ecology. While most surveys have focused on the broad-scale distribution ...