Results 21 to 30 of about 418 (144)

Amphipholis januarii Ljungman 1866

, 2018
Amphipholis januarii Ljungman, 1866 (Fig. 14) Type locality. Rio de Janeiro, Brazil. Maximum size. dd up to 6 mm (Paim et al. 2015). Material examined. 20 specimens (dd: 2.4–5.5 mm) from subtidal: ZUEC OPH 2197, St.
Guilherme, Pablo D. B., Bueno, Maristela L., Borges, Michela, Christensen, Ana Beardsley, Domenico, Maikon Di, Alitto, Renata A. S.   +5 more
core   +3 more sources

Amphipholis squamata Delle Chiaje 1828

, 2011
Amphipholis squamata (Delle Chiaje, 1828) (Fig. 8) Material examined. Mercator MV, TTR 15, stn AT 568, 1 ind. (DBUA 001080.07); stn AT 575, 10 inds (DBUA 001080.01), stn AT 576, 5 inds. (DBUA 001080.02), stn AT 577, 2 inds. (DBUA 001080.03); MSM01-03,
Cabrinovic, Andrew, Rodrigues, Clara F., Paterson, Gordon L. J., Cunha, Marina R.   +3 more
core   +3 more sources

Luminescence control in the brittlestar Amphipholis squamata: Effect of cholinergic drugs

Comparative Biochemistry and Physiology Part C: Pharmacology, Toxicology and Endocrinology, 1996
Potassium chloride and cholinergic drugs were rested on isolated arms of Amphipholis squamata; potassium chloride triggered a monophasic light emission; acetylcholine (10(-3) M) induced a luminescent response characterized by multiple flashes.
DeBremaeker, N, Mallefet, Jérôme, Baguet, Fernand   +2 more
core   +2 more sources

Is there a link between morphological, physiological and genetic variability of the ophiuroid Amphipholis squamata?

Netherlands Journal of Zoology, 2000
Amphipholis squamata is a small ophiuroid considered to be distributed worldwide except in Polar Regions. Numerous colour varieties were reported fur this species, which is also bioluminescent.
Poulin, E, Dupont, Sophie, Chaufer, S, Feral, JP, Mallefet, Jérôme, Benelux Meeting   +5 more
core   +2 more sources

Having cake and eating too: The benefits of an intermediate larval form in a brittle star Amphiodia sp. opaque (Ophiuroidea). [PDF]

Ecol Evol, 2023
We describe an unusual brittle star larva that represents an intermediate evolutionary stage between feeding and nonfeeding larvae. Larvae of this species are capable of feeding, but can forego food and make a juvenile. Offspring that ate as larvae had shortened development times, higher percent metamorphosis, larger size, and longer juvenile survival ...
Nakata NN, Emlet RB.
europepmc   +2 more sources

Unravelling Hidden Trophic Interactions Among Sea Urchin Juveniles and Macroinvertebrates by DNA Amplification. [PDF]

Mol Ecol
ABSTRACT Rocky reefs may shift between two distinct stable states: productive algal forests, characterised by high abundance and biodiversity of macrofauna, and impoverished barrens, dominated by overgrazing sea urchins. Barren states may persist despite the recovery of adult sea urchin predators, suggesting additional stabilising mechanisms.
Sutera A, Bonaviri C, Trapani FD, Bella F, Macic V, Marković O, Hereu B, Michele R.   +7 more
europepmc   +2 more sources

Morphological Characterization and Complete Mitochondrial Genome of a New Epizoic Hexamerous Brittle Star <i>Gymnolophus sexradia</i> sp. Nov. [PDF]

Ecol Evol
This study describes a new hexamerous epizoic brittle star species, Gymnolophus sexradia sp. nov., from the South China Sea, which lives on crinoid hosts and exhibits a six‐armed body plan possibly indicating fissiparity. Its vertebral and arm plate structures enhance horizontal flexibility for grasping the host, and phylogenetic analysis based on ...
Zhang Z, Xiao W, Zhang C, Li C, Zhang H, Chen Z.   +5 more
europepmc   +2 more sources

Intraspecific variations of bioluminescence in a polychromatic population of Amphipholis squamata (Echinodermata: Ophiuroidea)

Journal of the Marine Biological Association of the United Kingdom, 1997
Six colour varieties were recognized in an intertidal population of Amphipholis squamata from Normandy (France). Each variety exhibits its own capacity to produce light, the light emitted by the most luminous variety being 500 times more intense than ...
Jangoux, M., Deheyn, D., Mallefet, J.
core   +3 more sources

Evidence of seasonal variation in bioluminescence of Amphipholis squamata (Ophiuroidea, Echinodermata): Effects of environmental factors [PDF]

Journal of Experimental Marine Biology and Ecology, 2000
The bioluminescence of Amphipholis squamata was assessed from freshly collected individuals for 16 successive months, and from individuals maintained in the laboratory under various experimental conditions of salinity, temperature and photoperiodic ...
M Jangoux, J Mallefet, Mallefet, Jérôme, Deheyn, Dimitri, Jangoux, Michel, D Deheyn   +5 more
core   +3 more sources

The Effects of Pesticides on the Bioluminescent Brittle Star Amphipholis squamata: Implications for Future Regulation [PDF]

, 2010
Pesticide use is increasing worldwide. Thousands of pounds of active ingredients are used annually in the United States alone. While the use of these pesticides is prolific, our knowledge of the impacts they have on non-target species, ecosystems, and ...
Roberson, Megan Lee
core   +3 more sources