Results 131 to 140 of about 772 (159)
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Journal of Experimental Biology, 1999
ABSTRACT Amphipholis squamata is a polychromatic luminescent ophiuroid. The effects of amino acids ( γ-aminobutyric acid, GABA, taurine, glycine and glutamate), N-methyl-D-aspartate (NMDA) and the invertebrate neuropeptides Antho-RFamide, FMRFamide and SALMFamides S1 and S2 were tested on acetylcholine-induced luminescence from isolated ...
, Bremaeker +3 more
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ABSTRACT Amphipholis squamata is a polychromatic luminescent ophiuroid. The effects of amino acids ( γ-aminobutyric acid, GABA, taurine, glycine and glutamate), N-methyl-D-aspartate (NMDA) and the invertebrate neuropeptides Antho-RFamide, FMRFamide and SALMFamides S1 and S2 were tested on acetylcholine-induced luminescence from isolated ...
, Bremaeker +3 more
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Science of The Total Environment, 2000
The ophiuroid Amphipholis squamata (Echinodermata) is a bioluminescent species whose light production varies with physico-chemical parameters of the medium. Individuals collected in the bay of Portman along a gradient of heavy metal contamination show different patterns of light production: the ones from the highest contaminated area showing a ...
Deheyn, Dimitri +2 more
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The ophiuroid Amphipholis squamata (Echinodermata) is a bioluminescent species whose light production varies with physico-chemical parameters of the medium. Individuals collected in the bay of Portman along a gradient of heavy metal contamination show different patterns of light production: the ones from the highest contaminated area showing a ...
Deheyn, Dimitri +2 more
openaire +3 more sources
Journal of Morphology, 1984
AbstractThe fine structure of the male reproductive system of the hermaphroditic brittle‐star, Amphipholis squamata, has been studied in specimens from both the Pacific coast (Washington) and the Atlantic coast (New Hampshire). Each testis is a small (100‐μm) sphere and is attached to the internal wall of the bursa by peritoneal suspensor cells ...
John, Buckland-Nicks +2 more
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AbstractThe fine structure of the male reproductive system of the hermaphroditic brittle‐star, Amphipholis squamata, has been studied in specimens from both the Pacific coast (Washington) and the Atlantic coast (New Hampshire). Each testis is a small (100‐μm) sphere and is attached to the internal wall of the bursa by peritoneal suspensor cells ...
John, Buckland-Nicks +2 more
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Chemosphere, 2017
Artisanal small-scale gold mining (ASGM) using mercury (Hg) amalgamation commenced on Buru Island, Indonesia, in 2012, but was halted in 2015 due to concerns of widespread Hg contamination. Much of the Hg used in the mining process is lost to trommel waste which is disposed of in settlement ponds that drain into adjacent waterways and into Kayeli Bay ...
Amanda J. Reichelt-Brushett +4 more
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Artisanal small-scale gold mining (ASGM) using mercury (Hg) amalgamation commenced on Buru Island, Indonesia, in 2012, but was halted in 2015 due to concerns of widespread Hg contamination. Much of the Hg used in the mining process is lost to trommel waste which is disposed of in settlement ponds that drain into adjacent waterways and into Kayeli Bay ...
Amanda J. Reichelt-Brushett +4 more
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Cell and Tissue Research, 1999
Bioluminescence in the ophiuroid Amphipholis squamata is produced by photocytes located within the spinal ganglia of arm spines. Ganglionic cells were dissociated (pronase digestion) and photocytes separated from other cell types by using a continuous density Percoll gradient.
Deheyn, Dimitri +2 more
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Bioluminescence in the ophiuroid Amphipholis squamata is produced by photocytes located within the spinal ganglia of arm spines. Ganglionic cells were dissociated (pronase digestion) and photocytes separated from other cell types by using a continuous density Percoll gradient.
Deheyn, Dimitri +2 more
openaire +3 more sources
Comptes Rendus de l'Académie des Sciences - Series III - Sciences de la Vie, 2000
Individuals of the cosmopolitan ophiuroid Amphipholis squamata were collected from eight stations. Eleven colour varieties were described and their distribution was non-random among stations. This suggests that the varieties differ in ecophysiologic tolerance and that their geographical distribution is modulated by environmental conditions.
Deheyn, Dimitri +2 more
openaire +3 more sources
Individuals of the cosmopolitan ophiuroid Amphipholis squamata were collected from eight stations. Eleven colour varieties were described and their distribution was non-random among stations. This suggests that the varieties differ in ecophysiologic tolerance and that their geographical distribution is modulated by environmental conditions.
Deheyn, Dimitri +2 more
openaire +3 more sources
BIOLUMINESCENCE AND GENETIC VARIABILITY IN AMPHIPHOLIS SQUAMATA
Bioluminescence and Chemiluminescence, 2001S. DUPONT, J. MALLEFET, P. BARET
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