Crown-of-thorns starfish have true image forming vision
نویسندگان
چکیده
منابع مشابه
Crown-of-thorns starfish
Figure 1. Crown-of-thorns starfish and their legacy. (A) A group of crown-of-thorns starfish converge on the remaining small piece of living coral tissue (lc) on the surface of a tabular coral (Acropora sp.) The other coral tissue has just been consumed by the starfish so that only the white skeleton remains (cs). (B) After crown-of-thorns starfish have removed the living coral tissue, the expo...
متن کاملModel to manage and reduce crown-of-thorns starfish outbreaks
The crown-of-thorns starfish (COTS) Acanthaster planci is one of the largest causes of coral cover loss on Australia’s Great Barrier Reef. Numerous trophic-mediated and anthropogenic-related hypotheses, singly or in combination, have been proposed to explain COTS outbreaks, but the evidence remains inconclusive. There is, however, an urgent need for effective control and mitigation strategies. ...
متن کاملToward Robust Image Detection of Crown-of-Thorns Starfish for Autonomous Population Monitoring
Robust texture recognition in underwater image sequences for marine pest population control such as Crown-Of-Thorns Starfish (COTS) is a relatively unexplored area of research. Typically, humans count COTS by laboriously processing individual images taken during surveys. Being able to autonomously collect and process images of reef habitat and segment out the various marine biota holds the prom...
متن کاملSmooth muscle contractile action of the venom from the crown-of-thorns starfish, Acanthaster planci.
The fraction (venom B) of spine venom from the crown-of-thorns starfish (Acanthaster planci) caused contractions of the uterus of rats and enhanced vascular permeability in rabbits. The venom B-induced contraction of the smooth muscle was depressed by inhibitors of prostaglandin synthesis such as indomethacin or aspirin, but not by the anticholinergic agent, atropine. The fraction with the uter...
متن کاملInteractive Effects of Endogenous and Exogenous Nutrition on Larval Development for Crown-Of-Thorns Starfish
Outbreaks of crown-of-thorns starfish are often attributed to step-changes in larval survivorship following anomalous increases in nutrients and food availability. However, larval growth and development is also influenced by the nutritional condition of spawning females, such that maternal provisioning may offset limitations imposed by limited access to exogenous sources of nutrients during the...
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ژورنال
عنوان ژورنال: Frontiers in Zoology
سال: 2016
ISSN: 1742-9994
DOI: 10.1186/s12983-016-0174-9