Shifting microbial communities in acidified seawaters: insights from polychaetes living in the CO2 vent of Ischia, Italy DOI Creative Commons
Irene Arnoldi, Davide Carraretto, Marco Munari

et al.

Integrative Zoology, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 16, 2024

Abstract Oceans’ absorption of human‐related CO 2 emissions leads to a process called ocean acidification (OA), consisting the decrease seawater pH with negative consequences for many marine organisms. In this study, we investigate microbial community two species polychaetes found in naturally acidified vents: nereid Platynereis massiliensis complex and syllid Syllis prolifera . Animals were collected vents Castello Aragonese (Gulf Naples, Ischia, Italy) three zones at decreasing pH. For analysis microbiome, V3‐V4 hypervariable region 16S ribosomal RNA gene 40 worm samples was sequenced on an Illumina MiSeq platform. No difference alpha diversity both highlighted. On contrary, composition worms site normal different from that individuals obtained sites lower This effect evident also slight, but relevant, degree acidification. Amplicon sequence variants showing significant variation among groups reported polychaetes, no common trend observed. The present study deepens our knowledge about polychaete microbiome sites. Our results stress importance future investigations connection between environmental communities induced by OA these variations key biological ecological traits.

Language: Английский

On Anguillosyllis cf. hessleri Maciolek, 2020 – A species complex from the Clarion-Clipperton zone, abyssal central Pacific DOI Creative Commons
Regan Drennan, Lenka Neal, Helena Wiklund

et al.

Deep Sea Research Part I Oceanographic Research Papers, Journal Year: 2025, Volume and Issue: 220, P. 104453 - 104453

Published: April 4, 2025

Language: Английский

Citations

0
Molecular Investigation of the Diversity of Cirratulidae (Annelida) Doubles the Number of Known Species in European Waters DOI Creative Commons
Maël Grosse, Arne Nygren, Karin Meißner

et al.

Zoologica Scripta, Journal Year: 2025, Volume and Issue: unknown

Published: May 2, 2025

ABSTRACT Cirratulidae is a group of common marine benthic annelids with about 397 nominal species described worldwide, 58 which are reported in European waters. Due to the general morphological homogeneity among from several genera, this considered difficult identify level, has complex taxonomical and nomenclatural history largely understudied. The aim study was assess diversity Available samples ranged Arctic Ocean North Svalbard, along Atlantic coast western Mediterranean Sea, intertidal zone down 2600 m deep, over 400 sampling sites included. We included 2120 partial sequences two mitochondrial (COI 16S rRNA) one nuclear marker (28S 1098 specimens analyses, 65% were newly produced for study. performed relevant distance tree‐based delimitation analyses (ASAP, PTP, mPTP GMYC). As result, 125–129 lineages compatible evolutionary definition identified, out 83 96 represent putative new science. This represents most inclusive phylogenetic date. Multitentaculate retrieved as monophyletic inclusion Chaetocirratulus. genera Cirratulus , Chaetocirratulus Caulleriella Tharyx Raricirrus recovered monophyletic. genus Chaetozone paraphyletic nested within it, status Aphelochaeta Kirkegaardia unresolved.

Language: Английский

Citations

0
Shifting microbial communities in acidified seawaters: insights from polychaetes living in the CO2 vent of Ischia, Italy DOI Creative Commons
Irene Arnoldi, Davide Carraretto, Marco Munari

et al.

Integrative Zoology, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 16, 2024

Abstract Oceans’ absorption of human‐related CO 2 emissions leads to a process called ocean acidification (OA), consisting the decrease seawater pH with negative consequences for many marine organisms. In this study, we investigate microbial community two species polychaetes found in naturally acidified vents: nereid Platynereis massiliensis complex and syllid Syllis prolifera . Animals were collected vents Castello Aragonese (Gulf Naples, Ischia, Italy) three zones at decreasing pH. For analysis microbiome, V3‐V4 hypervariable region 16S ribosomal RNA gene 40 worm samples was sequenced on an Illumina MiSeq platform. No difference alpha diversity both highlighted. On contrary, composition worms site normal different from that individuals obtained sites lower This effect evident also slight, but relevant, degree acidification. Amplicon sequence variants showing significant variation among groups reported polychaetes, no common trend observed. The present study deepens our knowledge about polychaete microbiome sites. Our results stress importance future investigations connection between environmental communities induced by OA these variations key biological ecological traits.

Language: Английский

Citations

0