Results 21 to 30 of about 1,686,937 (226)
Echinoderms display morphological and behavioural phenotypic plasticity in response to their trophic environment. [PDF]
PLoS ONE, 2012 The trophic interactions of sea urchins are known to be the agents of phase shifts in benthic marine habitats such as tropical and temperate reefs. In temperate reefs, the grazing activity of sea urchins has been responsible for the destruction of kelp ...
Adam D Hughes +4 more
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Biology, 2022 The energetic link in the benthic community is based on physiological characteristics of the low food absorption efficiency of sea urchins. Low food absorption efficiency of sea urchins is correlated with the activity of digestive enzymes and the ...
Jingyun Ding +8 more
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Sea urchin utilisation in Eastern Indonesia
Ilmu Kelautan, 2023 Sea urchins have long been an important component of gleaning invertebrate fisheries and are valued for their highly nutritious gonads. Sea urchin fisheries are often unreported and unregulated, despite increasing indications of overexploitation. Data on
Hartati Tamti +6 more
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Identification of sea urchins in melonguane coastal area using Multilayer Perceptron Neural Network
Ilkom Jurnal Ilmiah, 2022 Sea urchins (Echinoidea) are marine biota that is found in Indonesian waters and there are 950 types of sea urchins scattered throughout the world. This study aims to classify types of sea urchins based on the characteristics contained in sea urchin ...
Andar Alwein Pinilas +2 more
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Behavioral plasticity of nocturnal marine organisms under interspecific competitive pressure
Global Ecology and Conservation, 2023 Pacific abalone (Haliotis discus hannai) are typical nocturnal organisms in the marine benthic ecosystem. However, whether their rhythmic behavior is related to the avoidance of interspecific competition for food resources is unknown.
Qi Luo +6 more
doaj +1 more source
Scientific Reports, 2021 Conspecific alarm cues crushed from Mesocentrotus nudus prevent sea urchins from foraging the kelp, but do not repel them far away from the kelp. However, it remains largely unknown of whether this phenomenon was affected by conspecific alarm cues or by ...
Xiaomei Chi +7 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
López-Sauceda, J., Aragón, J. L.
openaire +3 more sources
Sea Urchins Predation Facilitates Coral Invasion in a Marine Reserve [PDF]
, 2011 Macroalgae is the dominant trophic group on Mediterranean infralittoral rocky bottoms, whereas zooxanthellate corals are extremely rare. However, in recent years, the invasive coral Oculina patagonica appears to be increasing its abundance through ...
Ballesteros i Sagarra, Enric, 1958- +22 more
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Frontiers in Genetics, 2022 In the context of global warming and continuous high temperatures in the northern part of China during summer, the mortality rate of our main breeding species, Strongylocentrotus intermedius, reached 80% in 2020.
Lingshu Han +14 more
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Variation in purple sea urchin (Strongylocentrotus purpuratus) morphological traits in relation to resource availability [PDF]
PeerJ, 2021 Flexible resource investment is a risk sensitive reproductive strategy where individuals trade resources spent on reproduction for basic metabolic maintenance and survival.
Joshua G. Smith, Sabrina C. Garcia
doaj +2 more sources