Results 61 to 70 of about 1,840 (176)

On feeding of deep-sea crabs on the continental slope of northwestern Kamchatka

Известия ТИНРО, 2016
Mean index of gastrointestinal tract fullness for golden king crab Lithodes aequispinus is 15.5 ‱. Detritus occurs in 40.5 % of the cases, so it is a common food for this crab, Polychaeta, Ophiuroidea and Decapoda are 33.2 %, 32.1 % and 15.4 % of its ...
Valery I. Chuchukalo, Victor A. Nadtochy, Vladimir V. Napazakov, Oleg Yu. Borilko, Sergei A. Nuzhdenko   +4 more
doaj   +1 more source

Genetic variation in the brooding brittle-star: a global hybrid polyploid complex?

Royal Society Open Science
The widespread and abundant brooding brittle-star (Amphipholis squamata) is a simultaneous hermaphrodite with a complex mitochondrial phylogeography of multiple divergent overlapping mtDNA lineages, high levels of inbreeding or clonality and unusual ...
Andrew F. Hugall, Maria Byrne, Timothy D. O'Hara   +2 more
doaj   +1 more source

Biological surveys reveal unexpectedly high faunal diversity at Nankai Trough methane seeps

Ecosphere, Volume 16, Issue 11, November 2025.
Abstract Cold seeps are chemosynthesis‐based ecosystems powered by microbial primary production that support diverse and specialized faunal assemblages in the deep sea. Despite Nankai Trough in Japan being a geologically active margin hosting numerous seeps, much of the faunal diversity remains undocumented.
Chong Chen, Hiromi Kayama Watanabe, Natsumi Hookabe, Shoki Shiraki, Verity Nye, James F. Fleming, Naoto Jimi   +6 more
wiley   +1 more source

Morphological diagnoses of higher taxa in Ophiuroidea (Echinodermata) in support of a new classification

European Journal of Taxonomy, 2018
A new classification of Ophiuroidea, considering family rank and above, is presented. The new family and superfamily taxa in O’Hara et al. (2017) were proposed to ensure a better readability of the new phylogeny but are unavailable under the provisions ...
Timothy D. O'Hara, Sabine Stöhr, Andrew F. Hugall, Ben Thuy, Alexander Martynov   +4 more
doaj   +1 more source

Historical Biogeography of Spiny Lobsters in the Genus Panulirus (Achelata: Palinuridae)

Journal of Biogeography, Volume 52, Issue 11, November 2025.
ABSTRACT Aim Panulirus is the spiny lobster genus with the most living species, containing 22 recognised species split into two lineages distinguished by habitat preference. Diversification has been proposed to occur due to geographic events affecting the distribution of adults and the dispersal potential of long‐lived larvae by oceanic currents ...
Alyssa M. Baker, Michael J. Childress, J. Antonio Baeza   +2 more
wiley   +1 more source

The Swain Reefs Expedition: Ophiuroidea

Records of the Australian Museum, 1980
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire   +1 more source

Sistemática e Paleobiologia de Microfósseis de Equinodermas da Formação Pirabas (Mioceno Inferior), Estado do Pará, Brasil [PDF]

Anuário do Instituto de Geociências, 2015
Este trabalho apresenta os dados obtidos a partir da análise de microfósseis calcários presentes em amostras coletadas na Formação Pirabas, Mina B-17 da Cimentos do Brasil S. A., município de Capanema e praia do Atalaia município de Salinópolis, estado
Vladimir de Araújo Távora, Débora Barroso Monteiro, Salustriano Bosco Reis   +2 more
doaj  

Seismic Disturbance, Productivity and Depth Shape Hadal Benthic Habitats and Biodiversity in the Japan, Ryukyu and Izu‐Ogasawara Trenches (Northwest Pacific Ocean)

Journal of Biogeography, Volume 52, Issue 11, November 2025.
ABSTRACT Aim This study characterises benthic habitats and associated biodiversity in three Japanese subduction trenches, and explores the effects of trench‐specific differences in large‐scale seismic events, disturbance and productivity regimes on habitat structure and assemblage composition.
Denise J. B. Swanborn, Todd Bond, Heather A. Stewart, Elrond A. Garcia, Melanie S. Stott, Hiroshi Kitazato, Alan J. Jamieson   +6 more
wiley   +1 more source

Reconstructing SALMFamide neuropeptide precursor evolution in the phylum Echinodermata: ophiuroid and crinoid sequence data provide new insights

Frontiers in Endocrinology, 2015
The SALMFamides are a family of neuropeptides that act as muscle relaxants in echinoderms. Analysis of genome/transcriptome sequence data from the sea urchin Strongylocentrotus purpuratus (Echinoidea), the sea cucumber Apostichopus japonicus ...
Maurice R Elphick, Dean C Semmens, Liisa M Blowes, Judith eLevine, Christopher J Lowe, Maria Ina Arnone, Melody S Clark   +6 more
doaj   +1 more source

Checklist with first records for the Echinoderms of northern Tunisia (central Mediterranean Sea)

Scientia Marina, 2019
Tunisia occupies a strategic biogeographic position in the Mediterranean Sea and the Strait of Sicily is considered a biogeographical boundary that separates the eastern and western basins.
Hayfa Chammem, Jamila Ben Souissi, Angel Pérez-Ruzafa   +2 more
doaj   +1 more source