Blar i Nord Open Research Archive på forfatter "Sen, Arunima"
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Chemosynthesis influences food web and community structure in high-Arctic benthos
Åström, Emmelie K. L.; Carroll, Michael L.; Sen, Arunima; Niemann, Helge; Ambrose Jr., William G.; Lehmann, Moritz F.; Carroll, JoLynn (Peer reviewed; Journal article, 2019)Cold seeps are locations where seafloor communities are influenced by the seepage of methane and other reduced compounds from the seabed. We examined macro-infaunal benthos through community analysis and trophic structure ... -
Cold seeps in a warming Arctic : Insights for benthic ecology
Åström, Emmelie; Sen, Arunima; Carroll, Michael Leslie; Carroll, JoLynn (Peer reviewed; Journal article, 2020)Cold-seep benthic communities in the Arctic exist at the nexus of two extreme environments; one reflecting the harsh physical extremes of the Arctic environment and another reflecting the chemical extremes and strong ... -
Image based quantitative comparisons indicate heightened megabenthos diversity and abundance at a site of weak hydrocarbon seepage in the southwestern Barents Sea
Sen, Arunima; Chitkara, Chestaa; Hong, Wei-Li; Lepland, Aivo; Cochrane, Sabine; Di Primio, Rolando; Brunstad, Harald (Peer reviewed; Journal article, 2019)Background. High primary productivity in the midst of high toxicity defines hydrocarbon seeps; this feature usually results in significantly higher biomass, but in lower diversity communities at seeps rather than in the ... -
Iron cycling in Arctic methane seeps
Hong, Wei-Li; Latour, Pauline; Sauer, Simone; Sen, Arunima; Gilhooly, William P.; Lepland, Aivo; Fouskas, Fotios (Peer reviewed; Journal article, 2020)Anoxic marine sediments contribute a significant amount of dissolved iron (Fe2+) to the ocean which is crucial for the global carbon cycle. Here, we investigate iron cycling in four Arctic cold seeps where sediments are ... -
Lack of detectable chemosynthesis at a sponge dominated subarctic methane seep
Sinner, Melina; Hong, Wei-Li; Michel, Loïc N.; Vadakkepuliyambatta, Sunil; Knies, Jochen Manfred; Sen, Arunima (Peer reviewed; Journal article, 2023)We used high-resolution imagery within a Geographic Information System (GIS), free gas and porewater analyses and animal bulk stable isotope measurements to characterize the biotic and abiotic aspects of the newly discovered ... -
Lack of strong seasonality in macrobenthic communities from the northern Barents Sea shelf and Nansen Basin
Jorda Molina, Eric; Sen, Arunima; Bluhm, Bodil Annikki Ulla Barbro; Renaud, Paul Eric; Włodarska-Kowalczuk, Maria; Legeżyńska, Joanna; Oleszczuk, Barbara; Reiss, Henning (Peer reviewed; Journal article, 2023) -
Seafloor warm water temperature anomalies impact benthic macrofauna communities of a high-Arctic cold-water fjord
Jorda Molina, Eric; Renaud, Paul Eric; Silberberger, Marc J.; Sen, Arunima; Bluhm, Bodil; Carroll, Michael Leslie; Ambrose, William; Cottier, Finlo Robert; Reiss, Henning (Peer reviewed; Journal article, 2023)Amid the alarming atmospheric and oceanic warming rates taking place in the Arctic, western fjords around the Svalbard archipelago are experiencing an increased frequency of warm water intrusions in recent decades, causing ... -
Spatio-temporal dynamics of softbottom macrobenthic communities in a rapidly changing Arctic: a case study of the Northwestern Barents Sea
Jorda Molina, Eric (PhD in Aquatic Biosciences;no. 58, Doctoral thesis, 2023)