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| Laming, Sven; Hourdez, Stéphane; Cambon-bonavita, Marie-anne; Pradillon, Florence. |
| The chemosymbiotic gastropod Alviniconcha (Provannidae), first described in 1988, is one of the most emblematic hydrothermal-vent taxa described from the Central Indian Ridge and the Southwest (SW) Pacific. Symbiotic bacteria found in the gill of Alviniconcha are thought to be their principal source of nutrition. In the SW Pacific, species distributions for A. kojimai, A. boucheti – and to a lesser extent A. strummeri – overlap. While Alviniconcha species do not appear to truly co-exist in these highly energetic but spatially limited habitats, certain species regularly co-occur within a single vent field and in rare instances, the same edifice. Past research suggests that SW-Pacific Alviniconcha species might aggregate around fluids with distinct... |
| Tipo: Text |
Palavras-chave: Deep sea; Chemosymbiotic; Periostracum; Gastropod; Habitat partitioning; Computed tomography; Histology; Taxonomy; 3D model. |
| Ano: 2020 |
URL: https://archimer.ifremer.fr/doc/00628/74048/73459.pdf |
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| Duperron, Sebastien; Gaudron, Sylvie M.; Laming, Sven. |
| Hydrothermal vents are places where seawater exits cracks in the sea floor, having been super-heated and enriched with metals and minerals deep in the underlying bedrock. They are an example of an ecosystem based on chemosynthesis, where life is sustained by energy from chemicals rather than energy from sunlight. The discovery of an abundance of life around deep-sea hydrothermal vents emitting hot and toxic fluids demonstrated that animals and other organisms could thrive in the dark, cold and high-pressure deep oceans. Mussels are among the most studied animals found near hydrothermal vents. Scientists discovered that mussels rely on a close, living relationship—a “symbiosis”—with bacteria for their nutrition. In this symbiosis, bacteria use chemicals... |
| Tipo: Text |
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| Ano: 2019 |
URL: https://archimer.ifremer.fr/doc/00500/61188/64718.pdf |
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| Cunha, Marina; Génio, Luciana; Pradillon, Florence; Clavel Henry, Morane; Beaulieu, Stace; Birch, James; Campuzano, Francisco; Carretón, Marta; De Leo, Fabio; Gula, Jonathan; Laming, Sven; Lindsay, Dhugal; Matos, Fábio; Metaxas, Anna; Meyer-kaiser, Kirstin; Mills, Susan; Queiroga, Henrique; Rodrigues, Clara; Sarrazin, Jozee; Watanabe, Hiromi; Young, Robert; Young, Craig. |
| Recent advances in technology have enabled an unprecedented development of underwater research, extending from near shore to the deepest regions of the globe. However, monitoring of biodiversity is not fully implemented in political agendas and biological observations in the deep ocean have been even more limited in space and time. The Foresight Workshop on Advances in Ocean Biological Observations: a sustained system for deep-ocean meroplankton was convened to to foster advances in the knowledge on deep-ocean invertebrate larval distributions and improve our understanding of fundamental deep-ocean ecological processes such as connectivity and resilience of benthic communities to natural and human-induced disturbance. This Meroplankton Observations... |
| Tipo: Text |
Palavras-chave: Deep-ocean observations; Meroplankton; Connectivity; Underwater technology. |
| Ano: 2020 |
URL: https://archimer.ifremer.fr/doc/00629/74138/73665.pdf |
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| Laming, Sven; Gaudron, Sylvie M.; Duperron, Sebastien. |
| Mussels within the subfamily Bathymodiolinae, in particular the larger Bathymodiolus species (sensu lato) thriving at cold seeps and hydrothermal vents, are among the most iconic fauna to colonize deep-sea reducing habitats globally. Fuelled by energy derived from chemosynthetic symbioses, their contribution to ecosystem productivity is conspicuous, with many bathymodioline species forming dense, extensive aggregates. Chemosymbiotic mussels play crucial roles as ecosystem engineers, both through the formation of spatially heterogeneous biogenic reefs and in redistributing reduced-fluid emissions. The notable absence of Bathymodiolinae outside of reducing ecosystems affirms their dependency on these ephemeral habitats, placing spatiotemporal constraints on... |
| Tipo: Text |
Palavras-chave: Ontogeny; Bathymodiolinae; Nutrition; Development; Larvae; Symbiosis; Reducing habitats. |
| Ano: 2018 |
URL: https://archimer.ifremer.fr/doc/00477/58915/61478.pdf |
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