Results 21 to 30 of about 14,394 (155)
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
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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.
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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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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
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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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Aquaculture Reports, 2021 Development of sustainable aquaculture practices is a suitable solution to reduce the pressure on overexploited stocks of the Mediterranean sea urchin, Paracentrotus lividus, and to respond to the increasing market demand. To move forward the Blue Growth
Laura Ciriminna +5 more
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The behavior of sympatric sea urchin species across an ecosystem state gradient [PDF]
PeerJ, 2023 Background In temperate macroalgal forests, sea urchins are considered as a keystone species due to their grazing ability. Given their potential to shape benthic communities, we monitored the habitat use by three sympatric sea urchin species and compared
Dominic Franco C. Belleza +5 more
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Species and Abundance of Sea Urchins (Diadematidae) on Different Environmental Pressure Conditions
Journal of Tropical Life Science, 2017 Genetic diversity of sea urchin are very high; there are no two organisms of the same species that are exactly alike. Dense aggregation of sea urchin is responsible for the destruction of marine algae communities on coral reef ecosystem.
Pratama Diffi Samuel +2 more
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