Results 41 to 50 of about 1,281,546 (311)
Micromechanics of Sea Urchin Spines [PDF]
PLoS ONE, 2012 The endoskeletal structure of the Sea Urchin, Centrostephanus rodgersii, has numerous long spines whose known functions include locomotion, sensing, and protection against predators. These spines have a remarkable internal microstructure and are made of single-crystal calcite.
Tsafnat, Naomi +3 more
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Sea Urchin (Echinoidea) Distribution and Abundance in the Intertidal Zone of Bengkayang Regency
Biosaintifika: Journal of Biology & Biology Education, 2018 Sea urchins is the member of Echinoidea. This species can be found in tropical marine water to the poles. The study aimed to know the types, the abundance and spread of sea urchins in Bengkayang Regency. The research, used the transect method.
Andi Ristanto +2 more
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Eutacticity in Sea Urchin Evolution [PDF]
Bulletin of Mathematical Biology, 2007 An eutactic star, in a n-dimensional space, is a set of N vectors which can be viewed as the projection of N orthogonal vectors in a N-dimensional space. By adequately associating a star of vectors to a particular sea urchin we propose that a measure of the eutacticity of the star constitutes a measure of the regularity of the sea urchin. Then we study
Juan López-Sauceda, José L. Aragón
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Comparative Raman spectroscopy study of the coelomic fluid of grazing sea urchins and their native seawater: prospect for a potential indicator of environmental aggression [PDF]
Aerul şi Apa: Componente ale Mediului, 2018 Sea urchins have limited ability to move, and they use the watervascular circulation system to pump surrounding sea water in order to set body parts in motion.
F. NEKVAPIL +2 more
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Aquatic Living Resources, 2023 In the framework of stock enhancement, field experiments were conducted between March and July 2021 in rocky shores of Central Portugal to test the usefulness of refuges and calcein marking for juvenile sea urchins releases.
Correia Maria João +10 more
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Gastrulation in the sea urchin
, 2020 Gastrulation is arguably the most important evolutionary innovation in the animal kingdom. This process provides the basic embryonic architecture, an inner layer separated from an outer layer, from which all animal forms arise. An extraordinarily simple and elegant process of gastrulation is observed in the sea urchin embryo. The cells participating in
McClay, David R. +4 more
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The challenge of managing the commercial harvesting of the sea urchin Paracentrotus lividus: advanced approaches are required [PDF]
PeerJ, 2020 Sea urchins act as a keystone herbivore in marine coastal ecosystems, regulating macrophyte density, which offers refuge for multiple species. In the Mediterranean Sea, both the sea urchin Paracentrotus lividus and fish preying on it are highly valuable ...
Simone Farina +11 more
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Maintenance of somatic tissue regeneration with age in short‐ and long‐lived species of sea urchins
Aging Cell, 2016 Aging in many animals is characterized by a failure to maintain tissue homeostasis and the loss of regenerative capacity. In this study, the ability to maintain tissue homeostasis and regenerative potential was investigated in sea urchins, a novel model ...
A. Bodnar, J. Coffman
semanticscholar +1 more source
The Genome of the Sea Urchin Strongylocentrotus purpuratus [PDF]
Science, 2006 We report the sequence and analysis of the 814-megabase genome of the sea urchin Strongylocentrotus purpuratus , a model for developmental and systems biology. The sequencing strategy combined whole-genome shotgun and bacterial artificial chromosome (BAC) sequences. This use of BAC clones,
Albert J. Poustka +213 more
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Marine Drugs, 2017 Spinochromes are principally known to be involved in sea urchin pigmentation as well as for their potentially interesting pharmacological properties. To assess their biological role in sea urchin physiology, experiments are undertaken on crude extracts ...
Lola Brasseur +8 more
semanticscholar +1 more source