Results 91 to 100 of about 2,569 (215)

Recurring bleaching events disrupt the spatial properties of coral reef benthic communities across scales

open access: yesRemote Sensing in Ecology and Conservation, Volume 10, Issue 1, Page 39-55, February 2024.
Marine heatwaves are causing recurring coral bleaching events on tropical reefs that are driving wholesale ecosystem change. Yet little is known about how bleaching and subsequent coral mortality impacts the spatial properties of tropical seascapes, such as patterns of organism spatial clustering and heterogeneity across scales.
Helen V. Ford   +5 more
wiley   +1 more source

An open‐source general purpose machine learning framework for individual animal re‐identification using few‐shot learning

open access: yesMethods in Ecology and Evolution, Volume 15, Issue 2, Page 373-387, February 2024.
Abstract Animal re‐identification remains a challenging problem due to the cost of tagging systems and the difficulty of permanently attaching a physical marker to some animals, such as sea stars. Due to these challenges, photo identification is a good fit to solve this problem whether evaluated by humans or through machine learning.
Oscar Wahltinez, Sarah J. Wahltinez
wiley   +1 more source

Abundance of Acanthaster Planci as Health of Coral Indicator in Tunda Island, Serang Regency, Banten [PDF]

open access: yes, 2015
The abundance of Acanthaster planci can be used as a health indicator of coral reef ecosystem. A high abundance of A. planci become phatogen on coral and an indication of unhealthy coral reef ecosystem.
Zamani, N. P. (Neviaty)   +2 more
core   +1 more source

Neuropeptide expression and action in the reproductive system of the starfish Asterias rubens

open access: yesJournal of Comparative Neurology, Volume 532, Issue 1, January 2024.
The expression and action of neuropeptides in the reproductive system of the starfish Asterias rubens were investigated, as illustrated here for ArPPLN2h. This neuropeptide is expressed in the coelomic epithelial layer of the gonads [CE(Gd); arrowheads] in both female (a) and male (b) animals, and it causes relaxation of ovary (c) and testis (d ...
Victor M. Piñon Gonzalez   +3 more
wiley   +1 more source

Novel Sorbicillin Analogues from the Marine Fungus sp. Associated with the Seastar

open access: yesNatural Product Communications, 2012
Two novel sorbicillinoid analogues, (4' Z )-sorbicillin ( 1 ) and (2 S )-2,3-dihydro-7-hydroxy-6-methyl-2-[( E )-prop-1-enyl]-chroman-4-one ( 2 ), together with three known compounds, (2 S )-2,3-dihydro-7-hydroxy-6,8-dimethyl-2-[( E )-prop-1-enyl ...
Wen-Jian Lan   +8 more
doaj   +1 more source

KELIMPAHAN Acanthaster planci DAN TUTUPAN KARANG HIDUP DI PERAIRAN PULAU SAPARUA, PROVINSI MALUKU

open access: yes, 2020
Achantaster planci atau Crown-of-thorns starfish merupakan hewan pemangsa karang yang secara langsung dapat menyebabkan degradasi pada ekosistem terumbu karang. Penelitian ini bertujuan untuk mengetahui kelimpahan dari A.
Alik, Robert   +5 more
core   +1 more source

Olfactory responses of coral-reef fishes to coral degradation and crown-of-thorns (Acanthaster planci) [PDF]

open access: yes, 2016
Coral degradation is a major threat towards the biodiversity of coral-reef ecosystems, either through the physical effects of environmental change, or biological agents such as crown-of-thorns (Acanthaster planci).
Coppock, Amy G.   +2 more
core   +1 more source

Temporal and spatial distribution of Acanthaster planci population explosions in the Indo-West Pacific region

open access: yes, 1973
Recently-gathered information relating to the abundance and distribution of the asteroid Acanthaster planci on coral reefs at various localities in the Indo-West Pacific region is presented.
Chesher, Richard H., Endean, Robert
core   +1 more source

Effects Of Marine Protected Areas On The Population Of ACANTHASTER PLANCI In Moorea, French Polynesia [PDF]

open access: yes, 2008
Since the 1960’s the crown-of-thorns starfish, Acanthaster planci¸ has devastated coral reefs. There are many competing theories about the causes for these outbreaks of A. planci. One of the leading theories is that it is an anthropogenic cause.
Park, Albert
core  

Asteroidea, Echinoidea y Holothuroidea en fondos someros de la Bahía de Loreto, Baja California Sur, México

open access: yesRevista de Biología Tropical, 2000
Para evaluar distribución, abundancia y densidades de erizos, estrellas y pepinos de mar en la Bahía de Loreto se empleó un transecto de 50 metros, por duplicado, con un margen de observación de 2.5 m a cada lado del mismo por estación y fecha de ...
Oscar Holguin Quiñones   +2 more
doaj  

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