Consulta: creatorFacets:"Wiklund, Helena"
Registros recuperados: 2
Data/hora: 01/06/2024 16:22:51

High diversity and pan-oceanic distribution of deep-sea polychaetes: Prionospio and Aurospio (Annelida: Spionidae) in the Atlantic and Pacific Ocean
Provedor de dados: 5
Autores: Guggolz, Theresa; Meißner, Karin; Schwentner, Martin; Dahlgren, Thomas G.; Wiklund, Helena; Bonifácio, Paulo; Brandt, Angelika.
Prionospio Malmgren 1867 and Aurospio Maciolek 1981 (Annelida: Spionidae) are polychaete genera commonly found in the deep sea. Both genera belong to the Prionospio complex, whose members are known to have limited distinguishing characters. Morphological identification of specimens from the deep sea is challenging, as fragmentation and other damages are common during sampling. These issues impede investigations into the distribution patterns of these genera in the deep sea. In this study, we employ two molecular markers (16S rRNA and 18S) to study the diversity and the distribution patterns of Prionospio and Aurospio from the tropical North Atlantic, the Puerto Rico Trench and the central Pacific. Based on different molecular analyses (Automated Barcode...
Tipo: Text
Palavras-chave: Distribution patterns; Haplotype networks; Vema-Fracture-Zone; Clarion-Clipperton Fracture Zone; 16S rRNA; 18S.
Ano: 2020
URL: https://archimer.ifremer.fr/doc/00610/72216/71015.pdf

Chiridota heheva—the cosmopolitan holothurian
Provedor de dados: 5
Autores: Thomas, Elin A.; Liu, Ruoyu; Amon, Diva; Copley, Jon T.; Glover, Adrian G.; Helyar, Sarah J.; Olu, Karine; Wiklund, Helena; Zhang, Haibin; Sigwart, Julia D.
Chemosynthetic ecosystems have long been acknowledged as key areas of enrichment for deep-sea life, supporting hundreds of endemic species. Echinoderms are among the most common taxa inhabiting the periphery of chemosynthetic environments, and of these, chiridotid holothurians are often the most frequently observed. Yet, published records of chiridotids in these habitats are often noted only as supplemental information to larger ecological studies and several remain taxonomically unverified. This study therefore aimed to collate and review all known records attributed to Chiridota Eschscholtz, 1829, and to conduct the first phylogenetic analysis into the relationship of these chiridotid holothurians across global chemosynthetic habitats. We show that...
Tipo: Text
Palavras-chave: Deep sea; Chemosynthetic environments; Opportunism; Widespread; Echinoderms.
Ano: 2020
URL: https://archimer.ifremer.fr/doc/00660/77183/78609.pdf