Consulta: creatorFacets:"Fujiwara, Yoshihiro"
Registros recuperados: 2
Data/hora: 17/06/2024 07:24:16

Trophic structure and chemosynthesis contributions to heterotrophic fauna inhabiting an abyssal whale carcass
Provedor de dados: 5
Autores: Alfaro-lucas, Joan Manel; Shimabukuro, Mauricio; Ogata, Isabella, V; Fujiwara, Yoshihiro; Sumida, Paulo Y. G.
The trophic structure and role of chemosynthesis remain unexplored in deep-sea whale-fall communities in areas other than the California margin. This gap limits the understanding of these communities and their ecological relationships with other chemosynthetic ecosystems, such as vents and seeps. Here, we studied 3 different whale skeleton microhabitats with hypothesized high, intermediate and low reducing conditions as well as the sediments surrounding an abyssal whale fall (4204 m depth, SW Atlantic Ocean). We analyzed trophic structures (δ13C and δ15N) and the contribution of chemosynthetically derived carbon to heterotrophic species. The high and intermediate reducing microhabitats harbored food webs dominated by consumers of chemosynthetic production,...
Tipo: Text
Palavras-chave: Deep sea; Whale fall; Trophic structure; Chemosynthesis; Osedax.
Ano: 2018
URL: http://archimer.ifremer.fr/doc/00442/55342/56853.pdf

Copepod colonization of organic and inorganic substrata at a deep-sea hydrothermal vent site on the Mid-Atlantic Ridge
Provedor de dados: 5
Autores: Plum, Christoph; Pradillon, Florence; Fujiwara, Yoshihiro; Sarrazin, Jozee.
The few existing studies on deep-sea hydrothermal vent copepods indicate low connectivity with surrounding environments and reveal high endemism among vents. However, the finding of non-endemic copepod species in association with engineer species at different reduced ecosystems poses questions about the dispersal of copepods and the colonization of hydrothermal vents as well as their ecological connectivity.  The objective of this study is to understand copepod colonization patterns at a hydrothermal vent site in response to environmental factors such as temperature and fluid flow as well as the presence of different types of substrata. To address this objective, an in situ experiment was deployed using both organic (woods, pig bones) and inorganic...
Tipo: Text
Palavras-chave: Chemosynthetic ecosystems; Ecological connectivity; Biodiversity and ecosystem functioning; Community composition; Colonization experiment; Hydrothermal activity.
Ano: 2017
URL: http://archimer.ifremer.fr/doc/00342/45318/44776.pdf