Results 21 to 30 of about 830 (176)
SeeCucumbers: Using Deep Learning and Drone Imagery to Detect Sea Cucumbers on Coral Reef Flats
Drones, 2021 Sea cucumbers (Holothuroidea or holothurians) are a valuable fishery and are also crucial nutrient recyclers, bioturbation agents, and hosts for many biotic associates. Their ecological impacts could be substantial given their high abundance in some reef
Joan Y. Q. Li +3 more
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Origin of the holothurians (Echinodermata) derived by constructional morphology [PDF]
Fossil Record, 2002 According to a recent hypothesis, the holothurians originated by a process of extreme paedomorphism as "giant larvae", with "de novo" developed radial systems.
R. Haude
doaj +5 more sources
Molecular Networking-Based Analysis of Cytotoxic Saponins from Sea Cucumber Holothuria atra
Marine Drugs, 2019 The saponin composition of a specimen of black sea cucumber, Holothuria atra collected in the Persian Gulf was studied by a combined approach including LC-MS/MS, Molecular Networking, pure compound isolation, and NMR spectroscopy. The saponin composition
Laura Grauso +5 more
doaj +1 more source
Metabolic rates are significantly lower in abyssal Holothuroidea than in shallow-water Holothuroidea [PDF]
Royal Society Open Science, 2018 Recent analyses of metabolic rates in fishes, echinoderms, crustaceans and cephalopods have concluded that bathymetric declines in temperature- and mass-normalized metabolic rate do not result from resource-limitation (e.g. oxygen or food/chemical energy)
Alastair Brown +5 more
doaj +1 more source
Reproductive biology of the sea cucumber Holothuria sanctori (Echinodermata: Holothuroidea)
Scientia Marina, 2012 The reproductive biology of the sea cucumber Holothuria sanctori was studied over 24 months (February 2009 to January 2011) at Gran Canaria through the gonad index and a combination of macro- and microscopic analysis of the gonads.
Pablo G. Navarro +2 more
doaj +1 more source
The trophic biology of the holothurian Molpadia musculus: implications for organic matter cycling and ecosystem functioning in a deep submarine canyon [PDF]
Biogeosciences, 2010 Megafaunal organisms play a key role in ecosystem functioning in the deep-sea through bioturbation, bioirrigation and organic matter cycling. At 3500 m water depth in the Nazaré Canyon, NE Atlantic, very high abundances of the infaunal holothurian ...
A. Pusceddu +5 more
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Frontiers in Marine Science, 2022 Artisanal and small-scale gold mines (ASGMs) have been accompanied by widespread usage of mercury amalgamation to extract gold from ores, putting Indonesia among the top three global emitters of this pollutant and posing potential risks to the marine ...
Marco Tamburini +19 more
doaj +1 more source