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Registros recuperados: 15
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Annual and seasonal dynamics of deep-sea megafaunal epibenthic communities in Barkley Canyon (British Columbia, Canada): a response to climatology, surface productivity and benthic boundary layer variation ArchiMer
Chauvet, Pauline; Metaxas, Anna; Hay, Alex E.; Matabos, Marjolaine.
Understanding the impact of the environment on temporal trends in the composition and abundance of deep-sea species is essential for forecasting evolution of the community in the context of climate change. The recent development of deep-sea observatories enables multidisciplinary studies of long duration and high temporal resolution. We used a platform at the Ocean Networks Canada NEPTUNE Observatory located in the axis of Barkley Canyon between June 2012 and January 2015 to: (1) characterize the megabenthic community and the environmental conditions in the canyon; (2) investigate temporal patterns in the faunal community; and (3) determine the influence of environmental conditions on the observed patterns. The megafaunal epibenthic community, which...
Tipo: Text Palavras-chave: Deep-sea observatory; Inter-annual variation; Seasonal variation; Deep-sea canyon; Zoobenthos; Oxygen minimum zone; Canada; British Columbia; Barkley Canyon.
Ano: 2018 URL: https://archimer.ifremer.fr/doc/00436/54715/56152.pdf
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Apports de l’imagerie pour la cartographie et le suivi des habitats profonds ArchiMer
Tourolle, Julie; Borremans, Catherine; Olu, Karine; Menot, Lenaick; Matabos, Marjolaine.
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Ano: 2018 URL: https://archimer.ifremer.fr/doc/00472/58324/60875.pdf
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Astronomical and atmospheric impacts on deep-sea hydrothermal vent invertebrates ArchiMer
Lelievre, Yann; Legendre, Pierre; Matabos, Marjolaine; Mihaly, Steve; Lee, Raymond W.; Sarradin, Pierre-marie; Arango, Claudia P.; Sarrazin, Jozee.
Ocean tides and winter surface storms are among the main factors driving the dynamics and spatial structure of marine coastal species, but the understanding of their impact on deep-sea and hydrothermal vent communities is still limited. Multidisciplinary deep-sea observatories offer an essential tool to study behavioural rhythms and interactions between hydrothermal community dynamics and environmental fluctuations. Here, we investigated whether species associated with a Ridgeia piscesae tubeworm vent assemblage respond to local ocean dynamics. By tracking variations in vent macrofaunal abundance at different temporal scales, we provide the first evidence that tides and winter surface storms influence the distribution patterns of mobile and non-symbiotic...
Tipo: Text Palavras-chave: Deep-sea observatory; Hydrothermal vents; Macrofaunal abundance; Surface storms; Ocean tides; Time-series analysis.
Ano: 2017 URL: http://archimer.ifremer.fr/doc/00380/49122/49554.pdf
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Behavioural study of two Hydrothermal crustacean decapods: Mirocaris fortunata and Segonzacia mesatlantica, from the lucky strike vent field (mid-Atlantic ridge) ArchiMer
Matabos, Marjolaine; Cuvelier, D.; Brouard, J.; Shillito, B.; Ravaux, J.; Zbinden, M.; Barthelemy, D.; Sarradin, Pierre-marie; Sarrazin, Jozee.
Identifying the factors driving community dynamics in hydrothermal vent communities, and in particular biological interactions, is challenged by our ability to make direct observations and the difficulty to conduct experiments in those remote ecosystems. As a result, we have very limited knowledge on species’ behaviour and interactions in these communities and how they in turn influence community dynamics. Interactions such as competition or predation significantly affect community structure in vent communities, and video time-series have successfully been used to gain insights in biological interactions and species behaviour, including responses to short-term changes in temperature or feeding strategies. In this study, we combined in situ and ex situ...
Tipo: Text Palavras-chave: Abyss Box; Biological interactions; Deep-sea observatory; Eiffel Tower edifice; Feeding behaviour; Experimental research; Video imagery; Time series; Lucky Strike; Mid-Atlantic Ridge; 37 degrees 17 ' N; 32 degrees 16.3 ' W.
Ano: 2015 URL: https://archimer.ifremer.fr/doc/00266/37714/35732.pdf
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Biodiversity and trophic ecology of hydrothermal vent fauna associated with tubeworm assemblages on the Juan de Fuca Ridge ArchiMer
Lelievre, Yann; Sarrazin, Jozee; Marticorena, Julien; Schaal, Gauthier; Day, Thomas; Legendre, Pierre; Hourdez, Stephane; Matabos, Marjolaine.
Hydrothermal vent sites along the Juan de Fuca Ridge in the north-east Pacific host dense populations of Ridgeia piscesae tubeworms that promote habitat heterogeneity and local diversity. A detailed description of the biodiversity and community structure is needed to help understand the ecological processes that underlie the distribution and dynamics of deep-sea vent communities. Here, we assessed the composition, abundance, diversity and trophic structure of six tubeworm samples, corresponding to different successional stages, collected on the Grotto hydrothermal edifice (Main Endeavour Field, Juan de Fuca Ridge) at 2196 m depth. Including R. piscesae, a total of 36 macrofaunal taxa were identified to the species level. Although polychaetes made up the...
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Ano: 2018 URL: https://archimer.ifremer.fr/doc/00439/55083/56515.pdf
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EMSO-Azores : Monitoring seafloor and water column processes at the Mid-Atlantic Ridge ArchiMer
Cannat, Mathilde; Sarradin, Pierre-marie; Blandin, Jerome; Ballu, Valérie; Barreyre, Thibaut; Chavagnac, Valérie; Colaco, Ana; Crawford, Wayne; Daniel, Romuald; Escartin, Javier; Legrand, Julien; Matabos, Marjolaine; Rommevaux, Céline; Roullet, Guillaume; Reverdin, Gilles; Sarrazin, Jozee.
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Ano: 2016 URL: http://archimer.ifremer.fr/doc/00353/46444/46194.pdf
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Expert, Crowd, Students or Algorithm: who holds the key to deep-sea imagery ‘big data’ processing? ArchiMer
Matabos, Marjolaine; Hoeberechts, Maia; Doya, Carol; Aguzzi, Jacopo; Nephin, Jessica; Reimchen, Thomas E.; Leaver, Steve; Marx, Roswitha M.; Albu, Alexandra Branzan; Fier, Ryan; Fernandez-arcaya, Ulla; Juniper, S. Kim.
1.Recent technological development has increased our capacity to study the deep sea and the marine benthic realm, particularly with the development of multidisciplinary seafloor observatories. Since 2006, Ocean Networks Canada cabled observatories, have acquired nearly 65 TB and over 90,000 hours of video data from seafloor cameras and Remotely Operated Vehicles (ROVs). Manual processing of these data is time-consuming and highly labour-intensive, and cannot be comprehensively undertaken by individual researchers. These videos are a crucial source of information for assessing natural variability and ecosystem responses to increasing human activity in the deep sea. 2.We compared the performance of three groups of humans and one computer vision algorithm in...
Tipo: Text Palavras-chave: Computer vision algorithms; Crowdsourcing; Deep-sea imagery; Digital Fishers; Fish counting; OceanNetworks Canada; Seafloor observatories; Underwater video.
Ano: 2017 URL: http://archimer.ifremer.fr/doc/00369/47978/48006.pdf
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Exploring Environmental DNA (eDNA) to Assess Biodiversity of Hard Substratum Faunal Communities on the Lucky Strike Vent Field (Mid-Atlantic Ridge) and Investigate Recolonization Dynamics After an Induced Disturbance ArchiMer
Cowart, Dominique; Matabos, Marjolaine; Brandt, Miriam; Marticorena, Julien; Sarrazin, Jozee.
Deep ocean hydrothermal vent ecosystems face physical disturbances from naturally occurring volcanic and tectonic activities and are at increasing risk of mineral resource exploitation, raising concerns about the resilience of endemic biological communities. Following destructive events, efficient and rapidly applicable surveys of organisms are required to monitor the state, evolution and a possible return of these ecosystems to their original baseline status. In this study, we explored the environmental DNA (eDNA) approach as a tool (1) to assess biodiversity of benthic communities associated with deep-sea hard substrata and (2) tracked the recolonization dynamics of benthic invertebrate communities living on the Montségur edifice within the Lucky Strike...
Tipo: Text Palavras-chave: Natural regeneration; Clearance; Bathymodiolus azoricus; Monitoring; Hard substratum; Active and inactive vent sites.
Ano: 2020 URL: https://archimer.ifremer.fr/doc/00600/71176/69515.pdf
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Influence of an oxygen minimum zone and macroalgal enrichment on benthic megafaunal community composition in a NE Pacific submarine canyon ArchiMer
Domke, Lia; Lacharite, Myriam; Metaxas, Anna; Matabos, Marjolaine.
Megafaunal diversity in the deep sea shows a parabolic pattern with depth. It can be affected by factors such as low oxygen concentration, which suppresses diversity, or the presence of submarine canyons, which enhances it. Barkley Canyon, located off the west coast of British Columbia, Canada, is a submarine canyon that extends from the continental margin (200 m) into the deep ocean (2,000 m). This canyon receives drift kelp from shoreline kelp forests and contains an oxygen minimum zone (OMZ) at 500 to 1,500 m depth. Our study investigated the abundance and diversity of epibenthic megafauna over a range of depths (200–2,000 m) and oxygen concentrations (0.5–5.0 ml/L) within Barkley Canyon, as well as changes in abundance near detrital kelp. Video was...
Tipo: Text Palavras-chave: Barkley Canyon; Benthic surveys; British Columbia; Kelp detritus; Oxygen minimum zone; Submarine canyon.
Ano: 2017 URL: https://archimer.ifremer.fr/doc/00416/52773/56793.pdf
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Interannual Variation in the Population Dynamics of Juveniles of the Deep-Sea Crab Chionoecetes tanneri ArchiMer
Chauvet, Pauline; Metaxas, Anna; Matabos, Marjolaine.
Understanding the population dynamics of commercially fished deep-sea species, on seasonal to inter-annual scales, is of great importance in areas where fishing pressure is high. The remoteness of the deep-sea environment constitutes a challenge for monitoring these populations. The few studies that have investigated population structure of deep-sea species, have used trawls, a destructive approach for benthic ecosystems. The development of deep-sea observatories offers a continuous long-term presence on the seafloor. Using imagery from the Ocean Network Canada deep-sea observatory, video footage was acquired on a daily basis and analyzed to describe the population dynamics of the deep-sea crab Chionoecetes tanneri located in depths of 900–1000 m in...
Tipo: Text Palavras-chave: Marine imagery; Deep-sea observatory; Ocean Network Canada; Oxygen minimum zone; Tanner crab; Reproduction; Temporal trends; British Columbia.
Ano: 2019 URL: https://archimer.ifremer.fr/doc/00481/59314/62069.pdf
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Revisiting the Lepetodrilus elevatus species complex (Vetigastropoda: Lepetodrilidae), using samples from the Galápagos and Guaymas hydrothermal vent systems ArchiMer
Matabos, Marjolaine; Jollivet, Didier.
The current distribution ranges of vent species result from the complex tectonic history of oceanic ridges. A growing number of DNA barcode studies report the presence of cryptic species across geological discontinuities that offset ridge systems and have gradually helped to draw a more precise picture of the historical migration pathways of vent fauna. We reexamined the phylogeny of species within the Lepetodrilus elevatus complex along the East Pacific Rise (EPR) ridge system in the light of new samples from the Galápagos Rift and the Guaymas Basin. Our analyses of mitochondrial cytochrome c oxidase subunit I gene sequences, coupled with morphological data, highlight the occurrence of a distinct lineage along the Galápagos Rift and offer new insight into...
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Ano: 2019 URL: https://archimer.ifremer.fr/doc/00479/59048/61792.pdf
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sFDvent: A global trait database for deep‐sea hydrothermal‐vent fauna ArchiMer
Chapman, Abbie S. A.; Beaulieu, Stace E.; Colaço, Ana; Gebruk, Andrey V.; Hilario, Ana; Kihara, Terue C.; Ramirez‐llodra, Eva; Sarrazin, Jozee; Tunnicliffe, Verena; Amon, Diva J.; Baker, Maria C.; Boschen‐rose, Rachel E.; Chen, Chong; Cooper, Isabelle J.; Copley, Jonathan T.; Corbari, Laure; Cordes, Erik E.; Cuvelier, Daphne; Duperron, Sebastien; Du Preez, Cherisse; Gollner, Sabine; Horton, Tammy; Hourdez, Stéphane; Krylova, Elena M.; Linse, Katrin; Lokabharathi, P. A.; Marsh, Leigh; Matabos, Marjolaine; Mills, Susan Wier; Mullineaux, Lauren S.; Rapp, Hans Tore; Reid, William D. K.; Rybakova (goroslavskaya), Elena; A. Thomas, Tresa Remya; Southgate, Samuel James; Stöhr, Sabine; Turner, Phillip J.; Watanabe, Hiromi Kayama; Yasuhara, Moriaki; Bates, Amanda E.; Padolfi, John.
Motivation Traits are increasingly being used to quantify global biodiversity patterns, with trait databases growing in size and number, across diverse taxa. Despite growing interest in a trait-based approach to the biodiversity of the deep sea, where the impacts of human activities (including seabed mining) accelerate, there is no single repository for species traits for deep-sea chemosynthesis-based ecosystems, including hydrothermal vents. Using an international, collaborative approach, we have compiled the first global-scale trait database for deep-sea hydrothermal-vent fauna - sFDvent (sDiv-funded trait database for the Functional Diversity of vents). We formed a funded working group to select traits appropriate to: (a) capture the performance of vent...
Tipo: Text Palavras-chave: Biodiversity; Collaboration; Conservation; Cross-ecosystem; Database; Deep sea; Functional trait; Global-scale; Hydrothermal vent; SFDvent.
Ano: 2019 URL: https://archimer.ifremer.fr/doc/00509/62033/66160.pdf
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Temporal and spatial variation in temperature experienced by macrofauna at main endeavour Hydrothermal vent field ArchiMer
Lee, Raymond W.; Robert, Katleen; Matabos, Marjolaine; Bates, Amanda E.; Juniper, S. Kim.
A significant focus of hydrothermal vent ecological studies has been to understand how species cope with various stressors through physiological tolerance and biochemical resistance. Yet, the environmental conditions experienced by vent species have not been well characterized. This objective requires continuous observations over time intervals that can capture environmental variability at scales that are relevant to animals. We used autonomous temperature logger arrays (four roughly parallel linear arrays of 12 loggers spaced every 10–12 cm) to study spatial and temporal variations in the thermal regime experienced by hydrothermal vent macrofauna at a diffuse flow vent. Hourly temperatures were recorded over eight months from 2010 to 2011 at Grotto vent...
Tipo: Text Palavras-chave: Hydrothermal vents; Community ecology; Thermal biology; Endeavour; Time-series.
Ano: 2015 URL: http://archimer.ifremer.fr/doc/00283/39428/37868.pdf
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The Deep Sea Spy system. Building a marine images annotation database from participative science ArchiMer
Borremans, Catherine; Matabos, Marjolaine.
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Ano: 2018 URL: https://archimer.ifremer.fr/doc/00472/58323/60874.pdf
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The VENUS cabled observatory as a method to observe fish behaviour and species assemblages in a hypoxic fjord, Saanich Inlet (British Columbia, Canada) ArchiMer
Matabos, Marjolaine; Piechaud, Nils; De Montigny, Francois; Sarradin, Pierre-marie; Sarrazin, Jozee.
Studies reporting processes that may shape marine benthic communities under the seasonal scale are rare at depths > 50 m. In this study, the use of the VENUS multidisciplinary cabled observatory provided 2-month high-resolution data combining quantitative biology and environmental data in Saanich Inlet, a seasonally hypoxic fjord located on Vancouver Island (British Columbia, Canada). An ecological module equipped with a camera acquired a 3 min video clip every half hour during 2 months at 97 m depth in the oxygen fluctuation zone of the fjord. Results highlighted the role of the tidal cycle on species activity rhythms and confirmed the influence of oxygen fluctuations on benthic assemblage structure and species behaviour. However, environmental...
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Ano: 2015 URL: https://archimer.ifremer.fr/doc/00251/36176/34776.pdf
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