Results 21 to 30 of about 170 (122)
Effects of Catecholamines and Purines on Luminescence in the Brittlestar Amphipholis Squamata (Echinodermata) [PDF]
Journal of Experimental Biology, 2000 ABSTRACT The effects of catecholamines (dopamine, adrenaline, noradrenaline and its derivatives), 5-hydroxytryptamine and purines (adenosine, ATP and their derivatives) on the acetylcholine-induced luminescence of isolated arms and dissociated photocytes of the luminescent ophiuroid Amphipholis squamata were tested.
N, De Bremaeker, F, Baguet, J, Mallefet
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Identification of Fine‐Scale Marine Benthic Ecoclines by Multiple Parallel Ordination
Journal of Marine Sciences, Volume 2014, Issue 1, 2014., 2014 The species‐environment relationship is a fundamental structural property of natural ecosystems. Marine sedimentary macrofauna is known to be structured by a range of environmental variables; however, the mechanisms by which environmental variables covary to form complex‐gradients (i.e., groups of intercorrelated environmental variables), and how these
Thijs Christiaan van Son +6 more
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, 2018 Published as part of Alitto, Renata A. S., Bueno, Maristela L., Guilherme, Pablo D. B., Domenico, Maikon Di, Christensen, Ana Beardsley & Borges, Michela, 2018, Shallow-water brittle stars (Echinodermata: Ophiuroidea) from Araçá Bay (Southeastern Brazil), with spatial distribution considerations, pp.
Alitto, Renata A. S. +5 more
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, 2015 Amphipholis misera (Koehler, 1899) Material examined. Twelve specimens; St. DW6, SW24; 0–15.2 m deep; sand and rock, sand/seagrass. Remarks. The specimens were very small in size. According to the key of A. M. Clark & Rowe (1971: 99), this species can be distinguished from Amphipholis squamata (Delle Chiaje, 1828) which is one of the most widely and ...
Fujita, Toshihiko, Irimura, Seiichi
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Amphipholis squamata (Delle Chiaje, 1828) Asteria squamata — Delle Chiaje 1828: 77. Amphiura tenera — Rathbun 1879: 154. Amphiura squamata — Lyman 1865: 122–123; Koehler 1913: 316. Axiognathus squamatus — Lima-Verde 1969: 11; Boffi 1969: 450; 1972: 319; Tommasi 1970: 37, Fig. 36; 1974b: 188; Morgado & Tanaka 2001: 177.
Silva, Jailma Ferreira Da +2 more
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, 2018 Published as part of Alitto, Renata A. S., Bueno, Maristela L., Guilherme, Pablo D. B., Domenico, Maikon Di, Christensen, Ana Beardsley & Borges, Michela, 2018, Shallow-water brittle stars (Echinodermata: Ophiuroidea) from Araçá Bay (Southeastern Brazil), with spatial distribution considerations, pp.
Alitto, Renata A. S. +5 more
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Environmental DNA, Volume 7, Issue 3, May–June 2025.Ecosystem monitoring is essential for preventing biodiversity loss, and in the Mar Menor lagoon (SE Spain), where intensive agriculture has led to eutrophication and mass mortality of marine fauna, it is critical for assessing the status of flora and fauna and informing conservation actions.
Andrea Corral‐Lou +10 more
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Description of a Novel Symbiotic Bacterium from the Brittle Star, Amphipholis squamata [PDF]
Applied and Environmental Microbiology, 1990 A gram-negative, marine, facultatively anaerobic bacterial isolate designated strain AS-1 was isolated from the subcuticular space of the brittle star, Amphipholis squamata. Its sensitivity to O/129 and novobiocin, overall morphology, and biochemical characteristics and the moles percent guanine-plus-cytosine ...
Michael P, Lesser, Richard P, Blakemore
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Environmental DNA, Volume 7, Issue 2, March/April 2025.This study used environmental DNA (eDNA) metabarcoding of superficial water samples to assess benthic invertebrate biodiversity in the Venice Lagoon. Sampling from surface water revealed 80 taxonomic units, mostly benthic species, including several invasive ones, with significant spatial and seasonal variations in community composition.
Francesco Martino +15 more
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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. VII, 1 spm; ZUEC OPH 2210, St. 71, 1 spm; ZUEC OPH 2245, St. XIX, 1 spm; ZUEC OPH 2249, St. XIX, 1 spm; ZUEC OPH 2268, St.
Alitto, Renata A. S. +5 more
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