World Register of Deep-Sea species

Deep-Sea source details

Name

Georgieva, Magdalena N.; Wiklund, Helena; Ramos, Dino A.; Neal, Lenka; Glasby, Christopher J.; Gunton, Laetitia M. (2023). The annelid community of a natural deep-sea whale fall off eastern Australia. Records of the Australian Museum. 75(3): 167-213.

SourceID

450987

DOI

10.3853/j.2201-4349.75.2023.1800 [view]

Authors

Georgieva, Magdalena N.; Wiklund, Helena; Ramos, Dino A.; Neal, Lenka; Glasby, Christopher J.; Gunton, Laetitia M.

Year

2023

Title

The annelid community of a natural deep-sea whale fall off eastern Australia

Journal

Records of the Australian Museum

Suffix

75(3): 167-213

Type

Publication

Link

https://journals.australian.museum/georgieva-2023-rec-aust-mus-753-167213/

Note

World Polychaeta Database (WPolyD).

Full text

Available for editors

Abstract

In the deep ocean, whale falls (deceased whales that sink to the seafloor) act as a boost of productivity in this otherwise generally food-limited setting, nourishing organisms from sharks to microbes during the various stages of their decomposition. Annelid worms are habitual colonizers of whale falls, with new species regularly reported from these settings and their systematics helping to resolve bio-geographic patterns among deep-sea organic fall environments. During a 2017 expedition of the Australian research vessel RV Investigator to sample bathyal to abyssal communities off Australia’s east coast, a natural whale fall was opportunistically trawled at ~1000 m depth. In this study, we provide detailed taxonomic descriptions of the annelids associated with this whale-fall community, using both morphological and molecular techniques. From this material we describe nine new species from five families (Dorvilleidae: Ophryotrocha dahlgreni sp. nov. Ophryotrocha hanneloreae sp. nov., Ophryotrocha ravarae sp. nov.; Hesionidae: Vrijenhoekia timoharai sp. nov.; Nereididae: Neanthes adriangloveri sp. nov., Neanthes visicete sp. nov.; Orbiniidae: Orbiniella jamesi sp. nov.), including two belonging to the bone-eating genus Osedax (Siboglinidae: Osedax waadjum sp. nov., Osedax byronbayensis sp. nov.) that are the first to be described from Australian waters. We further provide systematic accounts for 10 taxa within the Ampharetidae, Amphinomidae, Microphthalmidae, Nereididae, Orbiniidae, Phyllodocidae, Protodrilidae, Sphaerodoridae and Phascolosomatidae. Our investigations uncover unique occurrences and for the first time enable the evaluation of biogeographic links between Australian whale falls and others in the western Pacific as well as worldwide.

Geographical term

Australia

Bibliographical terms

Abyssal, Deep-Sea
Molecular systematics, Molecular biology
Systematics, Taxonomy

Taxonomic terms

Annelida
Polychaeta

Export

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Sessions

Date

action

2023-05-17 03:22:37Z

created

Read, Geoffrey

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Holotype AM W.53694, geounit New South Wales, identified as Ophryotrocha dahlgreni Georgieva, Wiklund, Ramos, Neal, Glasby & Gunton, 2023
Holotype AM W.53697, geounit New South Wales, identified as Ophryotrocha hanneloreae Georgieva, Wiklund, Ramos, Neal, Glasby & Gunton, 2023
Holotype AM W.53702, geounit New South Wales, identified as Vrijenhoekia timoharai Georgieva, Wiklund, Ramos, Neal, Glasby & Gunton, 2023
Holotype AM W.53705, geounit New South Wales, identified as Orbiniella jamesi Georgieva, Wiklund, Ramos, Neal, Glasby & Gunton, 2023
Holotype AM W.53706, geounit New South Wales, identified as Osedax waadjum Georgieva, Wiklund, Ramos, Neal, Glasby & Gunton, 2023
Holotype AM W.53707, geounit New South Wales, identified as Osedax byronbayensis Georgieva, Wiklund, Ramos, Neal, Glasby & Gunton, 2023
Holotype AM W53702, geounit Tasman Sea, identified as Neanthes adriangloveri Georgieva, Wiklund, Ramos, Neal, Glasby & Gunton, 2023
Holotype AM W53704, geounit Tasman Sea, identified as Neanthes visicete Georgieva, Wiklund, Ramos, Neal, Glasby & Gunton, 2023

Classification

for Orbiniella jamesi Georgieva, Wiklund, Ramos, Neal, Glasby & Gunton, 2023

Authors state "We tentatively assign the new species to genus Orbiniella due to possession of a broadly conical ... [details]

Depth range

for Neanthes adriangloveri Georgieva, Wiklund, Ramos, Neal, Glasby & Gunton, 2023

999-1013 m [details]

Depth range

for Neanthes visicete Georgieva, Wiklund, Ramos, Neal, Glasby & Gunton, 2023

999-1013 m [details]

Distribution

for Neanthes adriangloveri Georgieva, Wiklund, Ramos, Neal, Glasby & Gunton, 2023

Tasman Sea: off eastern Australia [details]

Distribution

for Neanthes visicete Georgieva, Wiklund, Ramos, Neal, Glasby & Gunton, 2023

Tasman Sea: off eastern Australia [details]

Editor's comment

for Sirsoe Pleijel, 1998

See the note on Vrijenhoekia for why currently it is here treated as a synonym of Sirsoe based on Shimbukuro et al ... [details]

Editor's comment

for Vrijenhoekia Pleijel, Rouse, Ruta, Wiklund & Nygren, 2008

Georgieva et al (2023) added a further Vrijenhoekia species although Shimbukuro et al (2021, 2019) had earlier ... [details]

Etymology

for Neanthes adriangloveri Georgieva, Wiklund, Ramos, Neal, Glasby & Gunton, 2023

the species is named in honour of Dr Adrian Glover of the Natural History Museum, London [details]

Etymology

for Neanthes visicete Georgieva, Wiklund, Ramos, Neal, Glasby & Gunton, 2023

the species name is derived from the Latin “visitar” for a visitor, and “cete”, a whale, referring to the ... [details]

Etymology

for Ophryotrocha dahlgreni Georgieva, Wiklund, Ramos, Neal, Glasby & Gunton, 2023

Ophryotrocha dahlgreni is named for Dr Thomas Dahlgren, NORCE, Norway, and University of Gothenburg, Sweden [details]

Etymology

for Ophryotrocha hanneloreae Georgieva, Wiklund, Ramos, Neal, Glasby & Gunton, 2023

Ophryotrocha hanneloreae is named for Dr Hannelore Paxton at Macquarie University, Australia [details]

Etymology

for Orbiniella jamesi Georgieva, Wiklund, Ramos, Neal, Glasby & Gunton, 2023

Orbiniella jamesi is named for James Hayhurst, for his support of the work of M. Georgieva. [details]

Etymology

for Osedax byronbayensis Georgieva, Wiklund, Ramos, Neal, Glasby & Gunton, 2023

Osedax byronbayensis is named for the nearby location of Byron Bay [details]

Etymology

for Osedax waadjum Georgieva, Wiklund, Ramos, Neal, Glasby & Gunton, 2023

Authors: "In the Arakwal Bundjalung language Waadjum Darrigan Jubal means “Whale Bone Grub”. In consultation ... [details]

Etymology

for Vrijenhoekia timoharai Georgieva, Wiklund, Ramos, Neal, Glasby & Gunton, 2023

Vrijenhoekia timoharai is named for Dr Tim O’Hara of Museums Victoria, Australia, the Chief Scientist of the ... [details]

Habitat

for Neanthes adriangloveri Georgieva, Wiklund, Ramos, Neal, Glasby & Gunton, 2023

whale fall [details]

Habitat

for Neanthes visicete Georgieva, Wiklund, Ramos, Neal, Glasby & Gunton, 2023

whale fall [details]

Synonymy

for Vrijenhoekia Pleijel, Rouse, Ruta, Wiklund & Nygren, 2008

Strictly the type species of Vrijenhoekia, V. balaenophila places within Sirsoe according to phylogeny figures ... [details]

Type locality

for Ophryotrocha dahlgreni Georgieva, Wiklund, Ramos, Neal, Glasby & Gunton, 2023

Whale skull off Byron Bay, NSW, Australia, beam trawl, start: 28.05°S 154.08°E, 999 m, end: 28.10°S 154.08°E, 1013 m [details]

Type locality

for Ophryotrocha hanneloreae Georgieva, Wiklund, Ramos, Neal, Glasby & Gunton, 2023

Whale skull off Byron Bay, NSW, Australia, beam trawl, start: 28.05°S 154.08°E, 999 m, end: 28.10°S 154.08°E, 1013 m [details]

Type locality

for Orbiniella jamesi Georgieva, Wiklund, Ramos, Neal, Glasby & Gunton, 2023

Whale skull & vertebrae off Byron Bay, NSW, Australia, beam trawl, start: 28.05°S 154.08°E, 999 m, end: 28.10°S ... [details]

Type locality

for Osedax byronbayensis Georgieva, Wiklund, Ramos, Neal, Glasby & Gunton, 2023

Three incomplete specimens from a whale skull & vertebrae off Byron Bay, NSW, Australia, beam trawl, start: ... [details]

Type locality

for Osedax waadjum Georgieva, Wiklund, Ramos, Neal, Glasby & Gunton, 2023

Whale skull & vertebrae off Byron Bay, NSW, Australia, beam trawl, start: 28.05°S 154.08°E, 999 m, end: 28.10°S ... [details]

Type locality

for Vrijenhoekia timoharai Georgieva, Wiklund, Ramos, Neal, Glasby & Gunton, 2023

Whale skull & vertebrae off Byron Bay, NSW, Australia, beam trawl, start: 28.05°S 154.08°E, 999 m, end: 28.10°S ... [details]

Type specimen

for Osedax byronbayensis Georgieva, Wiklund, Ramos, Neal, Glasby & Gunton, 2023

The holotype is tissue, possibly a single palp, approximately 4 mm long, found within a tube. The species is ... [details]