How to generate pentagonal symmetry using Turing systems [PDF]
We explore numerically the formation of Turing patterns in a confined circular domain with small aspect ratio. Our results show that stable fivefold patterns are formed over a well defined range of disk sizes, offering a possible mechanism for inducing ...
Aragón, J. L. +4 more
core +2 more sources
Half a century of echinoid population decline in the northern Gulf of Aqaba, Red Sea
Multi‐decadal monitoring in the Gulf of Aqaba, northern Red Sea, reveals severe (>90%) declines of key echinoid grazers. These declines signify a collapse of crucial herbivory functions underpinning coral reef resilience. Results implicate accelerating anthropogenic stress as a principal driver, emphasizing the urgent need for sustained, species ...
Gal Eviatar, Omri Bronstein
wiley +1 more source
Morphology and Chemical Messenger Regulation of Echinoderm Muscles
The muscular systems of echinoderms play important roles in various physiological and behavioral processes, including feeding, reproduction, movement, respiration, and excretion.
Huachen Liu, Muyan Chen
doaj +1 more source
Marine benthic flora and fauna of Gourdon Bay and the Dampier Peninsula in the Kimberley region of North-Western Australia [PDF]
Surveys undertaken to characterise the marine benthic habitats along the Dampier Peninsula and further south at Gourdon Bay in the Kimberley region of Western Australia were augmented with epibenthic sled sampling of soft and hard bottom habitats.
Alderslade, P. +12 more
core +1 more source
Prioritising research on endocrine disruption in the marine environment: a global perspective
ABSTRACT A healthy ocean is a crucial life support system that regulates the global climate, is a source of oxygen and supports major economic activities. A vast and understudied biodiversity from micro‐ to macro‐organisms is integral to ocean health.
Patricia I. S. Pinto +23 more
wiley +1 more source
Plated Cambrian bilaterians reveal the earliest stages of echinoderm evolution.
Echinoderms are unique in being pentaradiate, having diverged from the ancestral bilaterian body plan more radically than any other animal phylum. This transformation arises during ontogeny, as echinoderm larvae are initially bilateral, then pass through
Samuel Zamora +2 more
doaj +1 more source
Comparative Neurobiology of Biogenic Amines in Animal Models in Deuterostomes
We review the occurrence of biogenic amines and their potential role as neurotransmitters in the nervous system of three groups of invertebrate deuterostomes: tunicates, cephalochordates, and echinoderms.
Enrico D’Aniello +4 more
doaj +1 more source
Spatial expression of Hox cluster genes in the ontogeny of a sea urchin [PDF]
The Hox cluster of the sea urchin Strongylocentrous purpuratus contains ten genes in a 500 kb span of the genome. Only two of these genes are expressed during embryogenesis, while all of eight genes tested are expressed during development of the adult ...
Arenas-Mena, César +2 more
core
Detrital events within pelagic deposits of the Umbria-Marche basin (Northern Apennines, Italy). Further evidence of Early Cretaceous tectonics [PDF]
Re-sedimented deposits characterize different stratigraphical intervals in the pelagic successions of the Umbria-Marche-Sabina Domain (Central and Northern Apennines, Italy).
CIPRIANI, ANGELO +3 more
core +1 more source
Although the development of sea urchin embryos has been studied extensively and clearly involves both cell adhesion and cell migration, rather little is known about the adhesion receptors and extracellular matrix molecules involved. The completion of the genome of Strongylocentrotus purpuratus allows a comprehensive survey of the complement of cell ...
Whittaker, Charles A. +5 more
openaire +2 more sources

