Results 21 to 30 of about 2,233,449 (219)

Sea star populations diverge by positive selection at a sperm‐egg compatibility locus

open access: yesEcology 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

Complete mitochondrial genome of a sea star, Linckia laevigata (Echinodermata, Asteroidea, Valvatida, Ophidiasteridae)

open access: yesMitochondrial DNA. Part B. Resources, 2020
We determined the complete mitochondrial genome sequences of an asteroid Linckia laevigata belonging to the order Valvatida. The complete mitogenome of L. laevigata was 16,371 bp in length and consisted of 13 protein-coding genes (PCGs), two rRNA, and 22
Shimpei F. Hiruta   +4 more
doaj   +1 more source

Sea stars generate downforce to stay attached to surfaces

open access: yesScientific 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

The Microbial Landscape of Sea Stars and the Anatomical and Interspecies Variability of Their Microbiome

open access: yesFrontiers in Microbiology, 2018
Sea stars are among the most important predators in benthic ecosystems worldwide which is partly attributed to their unique gastrointestinal features and feeding behaviors.
Elliot W. Jackson   +5 more
doaj   +1 more source

The stars are out: Predicting the effect of seawater freshening on the ecological impact of a sea star keystone predator

open access: yesEcological 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

Up in Arms: Immune and Nervous System Response to Sea Star Wasting Disease. [PDF]

open access: yesPLoS ONE, 2015
Echinoderms, positioned taxonomically at the base of deuterostomes, provide an important system for the study of the evolution of the immune system.
Lauren E Fuess   +13 more
doaj   +1 more source

Microbial dysbiosis precedes signs of sea star wasting disease in wild populations of Pycnopodia helianthoides

open access: yesFrontiers in Marine Science, 2023
Sea star wasting (SSW) disease, a massive and ongoing epidemic with unknown cause(s), has led to the rapid death and decimation of sea star populations with cascading ecological consequences.
Andrew R. McCracken   +11 more
doaj   +1 more source

Multi-star calibration in starphotometry [PDF]

open access: yesAtmospheric Measurement Techniques, 2023
We explored the improvement in starphotometry accuracy using a multi-star Langley calibration in lieu of the more traditional one-star Langley approach. Our goal was a 0.01 calibration-constant repeatability accuracy, at an operational sea-level facility
L. Ivănescu, N. T. O'Neill
doaj   +1 more source

Morphology and Settling Velocity of Sea Stars (Asterias rubens)

open access: yesJournal of Marine Science and Engineering, 2023
This study presents morphological data and estimates of the settling velocity and drag coefficient of sea stars (Asterias rubens) caught in the Limfjord, Denmark.
Karen B. Burgaard   +4 more
doaj   +1 more source

Biology of Incidental Catch Sea Star Stellaster childreni Gray, 1840 (Echinodermata: Asteroidea), from Malaysian Borneo Exclusive Economic Zone

open access: yesThe Scientific World Journal, 2017
Sea star (class Asteroidea, phylum Echinodermata) is one of the most successful marine organisms inhabiting a wide range of habitats. As one of the key stone species, sea stars are responsible for maintaining much of the local diversity of species within
Ruhana Hassan   +2 more
doaj   +1 more source

Home - About - Disclaimer - Privacy