Christopher L. Mah

ORCID: 0000-0002-0178-8237
Publications
Citations
Views
---
Saved
---
About
Contact & Profiles
Research Areas
  • Marine Biology and Ecology Research
  • Echinoderm biology and ecology
  • Marine and coastal plant biology
  • Coral and Marine Ecosystems Studies
  • Paleontology and Stratigraphy of Fossils
  • Ocean Acidification Effects and Responses
  • Marine Bivalve and Aquaculture Studies
  • Marine and fisheries research
  • Isotope Analysis in Ecology
  • Ichthyology and Marine Biology
  • Cephalopods and Marine Biology
  • Identification and Quantification in Food
  • Marine Ecology and Invasive Species
  • Marine and environmental studies
  • Astro and Planetary Science
  • Methane Hydrates and Related Phenomena
  • Geological and Geophysical Studies
  • Coastal and Marine Management
  • Geology and Paleoclimatology Research
  • Food Industry and Aquatic Biology
  • Polar Research and Ecology
  • Marine animal studies overview
  • Genetics, Bioinformatics, and Biomedical Research
  • Mercury impact and mitigation studies
  • Pacific and Southeast Asian Studies

National Museum of Natural History
2016-2025

Musée National d'Histoire Naturelle
2025

Smithsonian Institution
2015-2024

Washington Center
2023

ASTER
2023

Australian Museum
2021

Polish Geological Institute
2020

National Research Institute
2020

University of Hawaiʻi at Mānoa
2017

Institute of Oceanology. PP Shirshov Russian Academy of Sciences
2017

Ward Appeltans Shane T. Ahyong Gary Anderson Martin Angel Tom Artois and 95 more Nicolas Bailly Roger N. Bamber Anthony Barber Ilse Bartsch Annalisa Berta Magdalena Błażewicz Phil Bock Geoffrey A. Boxshall Christopher B. Boyko Simone N. Brandão Rod A. Bray Niel L. Bruce Stephen D. Cairns Tin‐Yam Chan Lanna Cheng Allen G. Collins Thomas H. Cribb Marco Curini‐Galletti Farid Dahdouh‐Guebas Peter J. F. Davie Michael N Dawson Olivier De Clerck Wim Decock Sammy De Grave Nicole J. de Voogd Daryl P. Domning Christian C. Emig Christer Erséus William N. Eschmeyer Kristian Fauchald Daphne G. Fautin Stephen W. Feist Charles H. J. M. Fransen Hidetaka Furuya Óscar García-Álvarez Sarah Gerken David I. Gibson Adriaan Gittenberger Serge Gofas Liza Gómez-Daglio Dennis P.‏ Gordon Michael D. Guiry Francisco Hernández Bert W. Hoeksema Russell R. Hopcroft Damià Jaume Paul M. Kirk Nico Koedam Stefan Koenemann Jürgen Kolb Reinhardt M. Kristensen Andreas Kroh Gretchen Lambert David Lazarus Rafael Lemaitre Matt Longshaw J. K. LOWRY Enrique Macpherson Laurence P. Madin Christopher L. Mah Gill Mapstone Patsy A. McLaughlin Jan Mees Kenneth Meland Charles G. Messing Claudia E. Mills Tina N. Molodtsova Rich Mooi Birger Neuhaus Peter K. L. Ng Claus Nielsen Jon L. Norenburg Dennis M. Opresko Masayuki Osawa Gustav Paulay William Perrin John Pilger Gary C. B. Poore Phil Pugh Geoffrey B. Read James Davis Reimer Marc Rius Rosana Moreira da Rocha José Ignacio Sáiz-Salinas Víctor Scarabino Bernd Schierwater Andreas Schmidt‐Rhaesa Kareen E. Schnabel Marilyn Schotte Peter Schuchert Enrico Schwabe Hendrik Segers Caryn Self-Sullivan Noa Shenkar Volker Siegel

10.1016/j.cub.2012.09.036 article EN publisher-specific-oa Current Biology 2012-11-15

Research cruises by the Monterey Bay Aquarium Institute (MBARI) have resulted in discovery of three new species asteroids from lower bathyal/abyssal regions North Pacific. A genus, Bathyceramaster is described to accommodate "Mediaster" elegans Ludwig 1905 and related species. New records situ observations are also presented. An identification key taxonomic account deep-sea Goniasteridae known this region including one genus two included. overview Sibogaster, a widely occurring species,

10.11646/zootaxa.4175.2.1 article EN Zootaxa 2016-10-12

We present data from a DNA taxonomy register of the abyssal benthic Echinodermata collected as part Abyssal Baseline (ABYSSLINE) environmental survey cruise 'AB01' to UK Seabed Resources Ltd (UKSRL) polymetallic-nodule exploration claim 'UK-1' in eastern Clarion-Clipperton Zone (CCZ), central Pacific Ocean plain. Morphological and genetic are presented for 17 species (4 Asteroidea, 4 Crinoidea, 2 Holothuroidea 7 Ophiuroidea) identified by combination morphological data. No taxa matched...

10.3897/bdj.4.e7251 article EN cc-by Biodiversity Data Journal 2016-01-25

There is growing interest in mining polymetallic nodules from the abyssal Clarion-Clipperton Zone (CCZ) tropical Pacific Ocean. Despite being focus of environmental studies for decades, benthic megafauna CCZ remain poorly known. In order to predict and manage impacts CCZ, baseline knowledge essential. The ABYSSLINE Project has conducted biological surveys UK Seabed Resources Ltd polymetallic-nodule exploration contract area (UK-1). Prior these research cruises 2013 2015, no had been done...

10.3897/bdj.5.e11794 article EN cc-by Biodiversity Data Journal 2017-05-11

Members of the Asteroidea (phylum Echinodermata), popularly known as starfish or sea stars, are ecologically important and diverse members marine ecosystems in all world's oceans. We present a comprehensive overview diversity phylogeny they have figured into evolution from Paleozoic to living fauna. Living post-Paleozoic asteroids, Neoasteroidea, morphologically separate those Paleozoic. Early asteroid faunas were displayed morphology that foreshadowed later taxa. Preservation presents...

10.1371/journal.pone.0035644 article EN cc-by PLoS ONE 2012-04-27

Recent assignment of some goniasterid-like Ophidiasteridae into the Goniasteridae has led to further re-evaluation other ophidiasterids as possible goniasterids. This discovery new genera and species supported by a distinctive set characteristics which support subfamily, Ferdininae, group originally outlined Marsh Price (1991) within Goniasteridae. The historical is paraphyletic includes several nominal ophidiasterid (e.g., Fromia, Neoferdina, etc.). Newly described material inclusion six...

10.11646/zootaxa.4271.1.1 article EN Zootaxa 2017-05-25

Modern goniasterids are the most numerous of living asteroids in terms described genera and species they have important ecological roles from shallow to deep-water marine habitats. Recent MNHN expeditions historical collections USNM resulted discovery 18 new species, three multiple occurrence records western Indian Ocean region including Madagascar, Glorioso Mayotte islands, Walters Shoal, South Africa, Somalia. This report provides first significant contribution knowledge deep-sea...

10.11646/zootaxa.4539.1.1 article EN Zootaxa 2018-12-21

Recent expeditions to Rapa Nui (also known as Easter Island) and New Caledonia have revealed undescribed species from mesophotic deeper depths. This includes three new Nui, Hacelia raaraa, Linckia profunda (Ophidiasteridae), Uokeaster ahi (Asterodiscididae) two Caledonia, Astroglypha pyramidata n. gen. Ophidiaster colossus (Ophidiasteridae). The genus is described for A. but the also Atlantic Tamaria passiflora, which reassigned herein. Pauliastra designated a replacement homonym issue with...

10.11646/zootaxa.4980.3.1 article EN Zootaxa 2021-06-02

Japanese waters contain a highly diverse echinoderm fauna including many undiscovered species, especially in deeper-water settings. Molecular phylogenetic data has shown close relationship between three established families of asteroids, the Asterinidae, Solasteridae and Ganeriidae, which are groups that well-represented region. We present two undescribed species solasterids, Lophaster cactorum n. sp. Paralophaster gomo sp., latter represents genus had previously been known primarily from...

10.11646/zootaxa.4750.1.4 article EN Zootaxa 2020-03-10

Exploratory cruises by the NOAA Ship Okeanos Explorer have resulted in a substantial contribution our understanding of deep-sea echinoderm biodiversity, biology, and ecology North Atlantic. This includes description situ feeding observations two, new corallivorous goniasterid species, Evoplosoma nizinskiae n. sp. Sibogaster bathyheuretor Significant include synchronous event including multiple asteroids cidaroid urchin on large demosponge, providing data for behavior, agonistic settings new,...

10.11646/zootaxa.4766.2.1 article EN Zootaxa 2020-04-20

The growing interest in mineral resources of the deep sea, such as seafloor massive sulphide deposits, has led to an increasing number exploration licences issued by International Seabed Authority. In Indian Ocean, four licence areas exist, resulting new hydrothermal vent fields and discovery species. Most studies focus on active venting including their ecology, but non-vent megafauna Central Ridge South East remains poorly known.In framework Ocean Exploration project German license area for...

10.3897/bdj.9.e69955 article EN cc-by Biodiversity Data Journal 2021-09-28

The methane seeps on the Pacific margin of Costa Rica support extensive animal diversity and offer insights into deep-sea biogeography. During five expeditions between 2009 2019, we conducted intensive faunal sampling via 63 submersible dives to 11 localities at depths 300–3600 m. Based these published literature, compiled voucher specimens, images, 274 newly DNA sequences present a taxonomic inventory macrofaunal megafaunal with focus invertebrates. In total 488 morphospecies were...

10.3897/zookeys.1222.134385 article EN cc-by ZooKeys 2025-01-03

Over a three-year period, the National Oceanic and Atmospheric Administration organized implemented Pacific-wide field campaign entitled CAPSTONE: Campaign to Address Pacific monument Science, Technology, Ocean NEeds. Under auspices of CAPSTONE, NOAA mapped 597,230 km 2 seafloor (with ~ 61% area located within US waters), including 323 seamounts, conducted 187 ROV dives totaling 189 hours benthic imaging time, documented more than 347,000 individual organisms. This comprehensive effort...

10.3389/fmars.2019.00480 article EN cc-by Frontiers in Marine Science 2019-08-06

During the 2019 First Descent: Seychelles Expedition, shallow and deep reef ecosystems of Outer Islands were studied by deploying a variety underwater technologies to survey their benthic flora fauna. Submersibles, remotely operated vehicles (ROVs) SCUBA diving teams used stereo-video camera systems record communities during transect surveys conducted at 10 m, 30 60 120 250 m 350 depths. In total, ~ 45 h video footage was collected surveys, which subsequently processed using annotation...

10.3897/bdj.9.e65970 article EN cc-by Biodiversity Data Journal 2021-08-27

The Southern Ocean is considered to be the canary in coal mine with respect first effects of ocean acidification (OA). This vulnerability due naturally low carbonate ion concentrations that result from effect temperature on acid-base dissociation coefficients, high solubility CO2 at temperature, and mixing. Consequently, two calcium polymorphs, aragonite calcite, are expected become undersaturated within 50 100 years, respectively. Marine invertebrates such as echinoderms, whose skeletons...

10.1086/660890 article EN The Journal of Geology 2011-07-29

The Valvatacea is one the most ecologically important, taxonomically diverse, and widespread groups of post-Palaeozoic (i.e. modern) Asteroidea. Classification within group has been historically problematic. We present a comprehensively sampled, three-gene (12S, 16S, early-stage histone H3) molecular phylogenetic analysis Valvatacea. include five six families Paxillosida, monotypic Notomyotida, 13 16 living Valvatida. Solasteridae removed from Velatida (Spinulosacea) joins Ganeriidae...

10.1111/j.1096-3642.2010.00659.x article EN Zoological Journal of the Linnean Society 2011-01-12

We present a comprehensively sampled three-gene phylogeny of the monophyletic Forcipulatacea, one three major lineages within crown-group Asteroidea. substantially more Southern Hemisphere and deep-sea taxa than were in previous molecular studies this group. Morphologically distinct groups, such as Brisingida Zoroasteridae, are upheld monophyletic. is supported derived sister group to Asteriidae (restricted), rather basal taxon. The paraphyletic, broken up into Stichasteridae four primary...

10.1111/j.1096-3642.2010.00688.x article EN Zoological Journal of the Linnean Society 2011-06-24

Video and image data are regularly used in the field of benthic ecology to document biodiversity. However, their use is subject a number challenges, principally identification taxa within images without associated physical specimens. The challenge applying traditional taxonomic keys fauna from has led development personal, group, or institution level reference catalogues operational units (OTUs) morphospecies. Lack standardisation among these problems with observer bias inability combine...

10.1371/journal.pone.0218904 article EN public-domain PLoS ONE 2019-12-31

The deep-sea crinoid fauna of the Indian Ocean is still only partially known and its relationships with Atlantic W Pacific faunas remain questionable. Isolated ossicles, more or less biocorroded, six species belonging to five families stalked crinoids one comatulids were found in a sediment late Pliocene early Pleistocene age collected at depth 1460 m on western Rodrigues Ridge. material described contains three including two new Rhizocrinidae. Paraconocrinus, common genus Eocene, was...

10.11646/zootaxa.5583.3.5 article EN Zootaxa 2025-02-03

The deep-sea benthic fauna of Australia, especially asteroids found in depths greater than 1000 m, are poorly understood. Recent surveys have uncovered additional specimens that further illustrate the biodiversity this largely understudied area. Two new genera and seven species Goniasteridae from settings Australian waters, including South Pacific Indian Ocean waters described. A genus, Alloceramaster was developed to accommodate not only newly described species, but also other present...

10.24199/j.mmv.2025.84.02 article EN Memoirs of Museum Victoria 2025-02-25

The Hippasterinae is a subfamily within the Goniasteridae, consisting of five genera and 26 species, which occur in cold-water settings ranging from subtidal to abyssal depths. All known were included cladistic analysis resulting two most parsimonious trees, supporting as monophyletic. Our review supports Sthenaster emmae gen. et sp. nov. new genus species tropical Atlantic Evoplosoma claguei voratus seamounts North Pacific. Hippasteria caribaea reassigned Gilbertaster, previously contained...

10.1111/j.1096-3642.2010.00638.x article EN Zoological Journal of the Linnean Society 2010-09-28

The Great Australian Bight (GAB) comprises the majority of Australia's southern coastline, but to date its deep water fauna has remained almost unknown. Recent issuing oil and gas leases in region highlighted this lack baseline biological data established a pressing need characterise benthic abyssal fauna. From 2013 2017, six large-scale systematic surveys GAB were conducted from 200 5000 m depth, constituting deepest sampling Australia. Sampling was on soft sediment hard substrates, both at...

10.1186/s41200-018-0158-x article EN cc-by Marine Biodiversity Records 2018-11-03
Coming Soon ...