P. Graham Oliver

ORCID: 0000-0002-9481-0711
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About
Contact & Profiles
Research Areas
  • Marine Biology and Ecology Research
  • Aquatic Invertebrate Ecology and Behavior
  • Marine Bivalve and Aquaculture Studies
  • Mollusks and Parasites Studies
  • Marine and environmental studies
  • Marine Ecology and Invasive Species
  • Parasite Biology and Host Interactions
  • Isotope Analysis in Ecology
  • Ichthyology and Marine Biology
  • Marine and coastal plant biology
  • Invertebrate Taxonomy and Ecology
  • Coral and Marine Ecosystems Studies
  • Marine and fisheries research
  • Cephalopods and Marine Biology
  • Fish Biology and Ecology Studies
  • Geology and Paleoclimatology Research
  • Maritime and Coastal Archaeology
  • Botany and Plant Ecology Studies
  • Subterranean biodiversity and taxonomy
  • Paleontology and Stratigraphy of Fossils
  • Plant and Fungal Species Descriptions
  • Crustacean biology and ecology
  • Mediterranean and Iberian flora and fauna
  • Ocean Acidification Effects and Responses
  • Botany, Ecology, and Taxonomy Studies

National Museum Wales
2014-2024

Bangor University
2017

Cardiff University
1983-2015

Hellenic Centre for Marine Research
2009

Laboratoire de Biologie Intégrative des Modèles Marins
1992

University of Leeds
1982

University of Birmingham
1967

Ascetoaxinus quatsinoensis sp. et gen. nov. is described from deep waters off the coast of Vancouver Island, British Columbia, Canada. The shell this species quite unusual in that margin lunule distinctly scalloped, a feature not reported previously for Thyasiroidea. Further investigation led to discovery another similarly scalloped shell, represented by unique type specimen Cryptodon ovoideus Dall, 1890, herein re-classified as ovoidea (Dall, 1890). Results obtained scanning electron...

10.11646/zootaxa.3869.4.8 article EN Zootaxa 2014-10-02

Abstract Bivalve species richness in the Northern Bay of Safaga, northern Red Sea, was assessed through original collecting activity water depths from intertidal to >50 m and by incorporating selected literature records. One-hundred-and-ninety-three samples, yielding 16,320 shells (dead living), were taken a coral-dominated coastal area that covers approximately 75 km2. Two-hundred-and-forty-three bivalve recognized; this is highest number reported date for any comparable size. This high can...

10.1080/17451000500456262 article EN Marine Biology Research 2005-12-01

Nucinellidae are a family of small, monomyarian, nuculoid marine bivalves that live at depths from 6–3,500 m. Related to the Solemyidae, they suspected chemosymbiosis with sulphur-oxidizing bacteria, but hitherto without morphological or molecular confirmation. Two new species, Nucinella owenensis and Huxleyia habooba, were collected 3,400 84 m, respectively, during survey oxygen-minimum zone associated seasonal upwelling area in Arabian Sea, off southern Oman. Sections relatively large...

10.1093/mollus/eyr045 article EN Journal of Molluscan Studies 2012-01-16

Bivalves have been found in unique benthic assemblages associated with active methane seeps and mounds along the western southern margins of Svalbard shelf (75–79°N) at 350–380 m depth. Among samples collected were a number shells Thyasiridae that are distinct from any species previously described. Here we describe one new genus Rhacothyas gen. nov. two Thyasira capitanea sp. kolgae nov., including their distinguishing characteristics environmental setting where they found. is large compared...

10.1080/17451000.2016.1272699 article EN Marine Biology Research 2017-04-21

This study quantified the degree of coincidence between living and dead molluscan faunas in a shallow-water coral reef environment Indian Ocean. The results were compared with those from similar life:death northern Red Sea, published for corals soft substrata molluscs. proportions quantitatively important taxa are robust to sampling intensity, but fidelity indices rank-order correlations strongly influenced by unimportant taxa. Distinct differences life death assemblages recognized, which...

10.1080/00241160310001650 article EN Lethaia 2003-06-01

The Thyasiroidea collected from the mud volcanoes of Gulf Cadiz are reviewed. Of seven species identified only one, Thyasira vulcolutre n. sp., is closely associated with a chemosynthetic setting. This has anatomical features typical chemosymbiotic taxa and compared T. sarsi (Philippi, 1845), southwardae Oliver & Holmes, 2006, oleophila Clarke, 1989 methanophila Sellanes, 2005. other six, (Parathyasira) granulosa (Monterosato, 1874), tortuosa (Jeffreys, 1881), obsoleta (Verrill Bush,...

10.11646/zootaxa.1752.1.2 article EN Zootaxa 2008-04-18

The hadal bivalves from the Japan Trench originally described as Maorithyas hadalis and Parathyasira kaireiae are reassigned to genera Tartarothyas n. gen. Spinaxinus, respectively. shell, anatomy, fine structure of ctenidia described, based on these new genus is introduced. Both species have modified host chemosymbiotic bacteria; those partly tubular in structure, whereas Spinaxinus fleshy lamellae.

10.61733/jconch/1405 article EN Deleted Journal 2024-03-09

Soft sedimentary biotopes are extensive in the shallow Western Indian Ocean, especially on Seychelles Plateau and Mascarene Ridge, yet pro rata compared with coral reefs research effort devoted to them has been minimal. In this study we examine benthic mollusc polychaete worm assemblages of waters (11-62 m) around Mahe, Seychelles, make direct comparisons temperate Irish Sea area subtropical Hong Kong, China (using identical methodology). Two were recognized, characterized by depth sediment...

10.1098/rsta.2004.1488 article EN Philosophical Transactions of the Royal Society A Mathematical Physical and Engineering Sciences 2004-11-16

A new species of Thyasira (T. methanophila n. sp.) is described from a methane seepage area off Concepción, Chile (~36ºS) at bathyal depths. This shows affinity with other southern ocean placed in the subgenus Maorithyas. The gross anatomy type Maorithyas, M. marama Fleming, 1950, for first time. There are no anatomical differences ctendia, foot and gut, between above taxa, which suggest that there anatomically living seeps environments. Furthermore, wider comparison shells suggests...

10.11646/zootaxa.1092.1.1 article EN Zootaxa 2005-12-08

The rocky northern shores of Kuwait and those the western, inner Bay are dominated by a small, densely encrusting oyster. identity this oyster has never been confirmed was mistaken previously for small Saccostrea . shell morphology suggests that species belongs to subfamily Crassostreinae, but within subfamily, presence marginal erect trumpet-shaped projections is so far unique. Phylogenetic analyses based on mitochondrial DNA sequence data Crassostreinae sister position clade including...

10.3897/zookeys.1043.66992 article EN cc-by ZooKeys 2021-06-10

A new species of Thyasiridae, ‘ Leptaxinus ’ indusarium sp. nov. is described from the Indus margin, off Pakistan. The generic affinity tentative and possible alternatives are discussed. It occurs between 800 m 1000 water depth in a low oxygen environment, where it relatively abundant. ecological setting data suggest that this not chemosymbiotic.

10.1017/s0025315406013270 article EN Journal of the Marine Biological Association of the United Kingdom 2006-03-13

Seven species of Thyasiridae are reported from the Oman Margin Arabian Sea at depths between 688 m and 3356 m. Hypoxic conditions exist 400 1200 three restricted to this zone Sea. Leptaxinus indusarium has also been recorded Indus Fan Channelaxinus investigatoris off Sri Lanka. A new Thyasira anassa sp. nov. is described hypoxic zone. Another four abyssal where oxygen levels typical for deep ocean. Here another described, Parathyasira bamberi but other could not be conclusively identified...

10.11646/zootaxa.3995.1.21 article EN Zootaxa 2015-08-05

Twenty species of Arcidae are described from tropical West Africa, defined here as between 23° N and 17° S. The Arcinae represented by four genera include new taxa : Area avellana turbatrix n. subsp., Barbatia gabonensis sp., B. ionthados ( Nipponarca) allocostata sp.The anatomy the latter is confirms value subgenus which redefined.The Anadarinae, other than Senilia Bathyarca all included in genus Anadara because use ligament orientation inequivalve condition abandoned phyletic...

10.5962/p.292216 article FR cc-by-nc-sa Bulletin du Muséum national d histoire naturelle 1992-01-01

MEPS Marine Ecology Progress Series Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsTheme Sections 382:265-278 (2009) - DOI: https://doi.org/10.3354/meps07955 Contribution Theme Section ‘Large-scale studies of European benthos’ Biological geography seas: results from MacroBen database C. Arvanitidis1,*, P. J. Somerfield, H. Rumohr, S. Faulwetter, V. Valavanis, A. Vasileiadou, G. Chatzigeorgiou, E. Vanden...

10.3354/meps07955 article EN Marine Ecology Progress Series 2009-02-11

For the first time, bacterial symbiosis is recognized in bivalve family Montacutidae of superfamily Galeommatoidea. The ctenidial filaments Syssitomya pourtalesiana Oliver, 2012 are extended abfrontally and a dense layer bacteriocyte cells cover entire surface behind narrow ciliated frontal zone. bacteria extracellular held within matrix epithelial extensions microvilli. There no cuticular (glycocalyx) covering as many thyasirid symbioses. bacteriocytes hold more than one morphotype...

10.1093/mollus/eys031 article EN Journal of Molluscan Studies 2012-11-29

Animal biodiversity is greatly underestimated in nontemperate marine regions, especially for intertidal benthic organisms such as oysters. Recent surveys the northern Arabian Gulf suggest presence of numerous unidentified species, some which form shallow reef ecosystems while others are cryptic and found under rocks. In this study, we focused on small oysters from Kuwait, show typical characteristics common with genus Ostrea except lophine chomata that would link it to genera Lopha,...

10.1155/2022/7058975 article EN cc-by Journal of Zoological Systematics & Evolutionary Research 2022-07-04

ABSTRACT The ostreid genus Anomiostrea Habe & Kosuge, 1966, is monotypic for A. coralliophila Habe, 1975, which known as a symbiont inhabiting the burrow of ghost shrimp Neocallichirus jousseaumei (Nobili, 1904), but despite this unusual habit among oysters its phylogenetic position within Ostreidae remained unknown. Using specimens collected from two distant localities Indo-Pacific, Oman and Japan, we compared shell morphology these with holotype assessed their relationships based on...

10.1093/mollus/eyae034 article EN Journal of Molluscan Studies 2024-09-30
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