Results 111 to 120 of about 11,145 (222)

Formation and Reduction of Indophenol Blue in Development of an Echinoderm

open access: yes, 1941
FORMATION AND REDUCTION OF INDOPHENOL BLUE IN DEVELOPMENT OF AN ECHINODERM Formation and Reduction of Indophenol Blue in Development of an Echinoderm (27) (-
Child, C.M.
core   +2 more sources

Structural Features and Phylogenetic Implications of Crinoid Echinoderms Based on Thirteen Novel Mitochondrial Genomes

open access: yesJournal of Marine Science and Engineering
Crinoids, as integral echinoderms, play a crucial ecological role in benthic communities, serving as significant indicators reflecting the health of marine ecosystems. However, the phylogenetic relationships within crinoids are unclear.
Qinzeng Xu   +9 more
doaj   +1 more source

Length–Weight and Body Condition Relationships of the Exploited Sea Cucumber Pearsonothuria graeffei

open access: yesJournal of Marine Science and Engineering
Fishery stock assessments are often based on morphometric data from underwater diver surveys and landing surveys. Measurements of body length are usually converted to estimates of body weight, yet length–weight equations might differ among localities. We
Alison R. Hammond, Steven W. Purcell
doaj   +1 more source

Echinoderm Biodiversity and Biogeography in Oceanic Islands: the Azores as a case study

open access: yes, 2019
Oceanic Islands are natural laboratories for the study of the processes and patterns of dispersion, colonization and ultimately of the appearance of new species.
Madeira, Patrícia Gomes Antunes
core  

Upper Devonian Echinoderm Debris Beds with Graded Texture, District of Mackenzie, Northwest Territories

open access: yes, 1973
A sequence of Upper Devonian echinoderm debris beds with graded texture, interbedded with shale, overlies the Middle Devonian Ramparts Formation in the subsurface at McDermott Canada GCO South Maida Creek G-56 well on the south side of Mackenzie River ...
W. S. MacKenzie
core   +1 more source

Imaging of Echinoderm Fertilization

open access: yesMolecular Biology of the Cell, 1998
Eggs from echinoderms (sea urchin, starfish, and sand dollars) have been an excellent subject for cell biology for more than 100 years. Among the many discoveries that have been made with echinoderm eggs are the first studies of the centrosome (Boveri, 1902 ; also see Baltzer, 1967 ), the Ca requirement for healing plasma membrane wounds (Chambers ...
openaire   +3 more sources

Checklist of the echinoderm fauna of the Adriatic Sea

open access: yes, 2017
Despalatović, Marija, Cvitković, Ivan, Žuljević, Ante (2017): Checklist of the echinoderm fauna of the Adriatic Sea. Zootaxa 4353 (1): 101-116, DOI: 10.11646/zootaxa.4353.1.
IVAN CVITKOVIĆ   +5 more
core   +1 more source

Molecular paleobiology of the echinoderm skeleton

open access: yes
Molecular paleobiology provides a promising avenue to merge data from deep time, molecular biology and genomics, gaining insights into the evolutionary process at multiple levels. The echinoderm skeleton is a model for molecular paleobioloogical studies.
Thompson, Jeffrey R.
core   +1 more source

Electron microprobe study of magnesium distribution in some Mississippian echinoderm limestones from western Canada

open access: yes, 1970
Electron microprobe techniques were used to examine the distribution of Mg, Ca, and Fe in six samples of Mississippian skeletal and oölitic limestones from the Alberta Rocky Mountains. All samples show extremely low values of Fe.
R. W. Macqueen, E. D. Ghent
core   +1 more source

Deep-sea echinoderm oxygen consumption rates and an interclass comparison of metabolic rates in Asteroidea, Crinoidea, Echinoidea, Holothuroidea and Ophiuroidea

open access: yes, 2011
Echinoderms are important components of deep-sea communities because their abundance and their activities contribute to carbon cycling. Estimating echinoderm contribution to food webs and carbon cycling is important to our understanding of the ...
Sarah Jane Murty Hughes   +11 more
core   +1 more source

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