Results 21 to 30 of about 22,375 (299)
Sea stars generate downforce to stay attached to surfaces
Scientific Reports, 2021 Intertidal sea stars often function in environments with extreme hydrodynamic loads that can compromise their ability to remain attached to surfaces. While behavioral responses such as burrowing into sand or sheltering in rock crevices can help minimize ...
Mark Hermes, Mitul Luhar
doaj +1 more source
Live imaging of echinoderm embryos to illuminate evo-devo
Frontiers in Cell and Developmental Biology, 2022 Echinoderm embryos have been model systems for cell and developmental biology for over 150 years, in good part because of their optical clarity. Discoveries that shaped our understanding of fertilization, cell division and cell differentiation were only ...
Vanessa Barone, Deirdre C. Lyons
doaj +1 more source
Animals, 2021 Sea stars in research are often lethally sampled without available methodology to render them insensible prior to sampling due to concerns over sufficient sample quality for applied molecular techniques.
Sarah J. Wahltinez +4 more
doaj +1 more source
Proceedings of the National Academy of Sciences, 2014 In June of last year, researchers got the first report that sea stars in Washington’s Olympic National Park were succumbing to a new disease outbreak. By August, stars were falling off the rocks—dead by the thousands—at Vancouver Island. “That’s the point at which we started getting samples and alerting people,” says Drew Harvell, a marine ...
openaire +2 more sources
Going deeper and further: a range and depth extension for the deep-sea feather star Paratelecrinus cubensis (Carpenter, 1881) (Comatulida, Atelecrinidae), first record from the Western Pacific [PDF]
ZooKeys, 2023 A specimen belonging to the deep-sea feather-star family Atelecrinidae was collected in April 2018 at the Kocebu Guyot at 1294 m deep. Based on its morphological characters, the specimen was identified as Paratelecrinus cubensis (Carpenter, 1881).
Zijie Mei, Zhongli Sha, Shao’e Sun
doaj +3 more sources
Kinematics of sea star legged locomotion
Journal of Experimental Biology, 2021 ABSTRACT Sea stars have slower crawling and faster bouncing gaits. Both speed and oscillation amplitude increase during the transition from crawling to oscillating. In the bouncy gait, oscillating vertical velocities precede oscillating horizontal velocities by 90 deg, as reflected by clockwise circular hodographs.
Olaf Ellers +2 more
openaire +2 more sources
Diversity, 2016 Outbreaks of the crown-of-thorns sea star (Acanthaster planci) are likely to be strongly associated with drastic changes in larval survival influenced by food availability. However, no quantitative or qualitative data are available on the distribution of
Go Suzuki +13 more
doaj +1 more source
Eyes, Vision, and Bioluminescence in Deep-Sea Brisingid Sea Stars [PDF]
The Biological Bulletin, 2023 AbstractSea stars are a major component of the megabenthos in most marine habitats, including those within the deep sea. Being radially symmetric, sea stars have sensory structures that are evenly distributed along the arms, with a compound eye located on each arm tip of most examined species.
Garm, Anders +4 more
openaire +3 more sources
Sea star populations diverge by positive selection at a sperm‐egg compatibility locus
Ecology and Evolution, 2013 Fertilization proteins of marine broadcast spawning species often show signals of positive selection. Among geographically isolated populations, positive selection within populations can lead to differences between them, and may result in reproductive ...
Jennifer M. Sunday, Michael W. Hart
doaj +1 more source
Ecological Indicators, 2021 Predicting the myriad effects of climate change on ecological communities is a major challenge for scientists, and to date relatively few studies have focused on the effects of sea freshening on species interactions.
James W.E. Dickey +6 more
doaj +1 more source