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The Rearing of Sea Urchins [PDF]
I ENCLOSE a photograph which may interest your readers. It is one of a water-colour painting of a seaurchin, magnified 4 diameters, which has been reared in my laboratory by Dr. Cresswell Shearer. It is a hybrid, a cross between Echinus milearis (male) and E. esculentus (female), both obtained from the Plymouth Marine Laboratory. The cross was effected
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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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Identification of sea urchins in melonguane coastal area using Multilayer Perceptron Neural Network
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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Injuries caused by venomous and poisonous aquatic animals may provoke important morbidity in humans. The phylum Echinoderma include more than 6000 species of starfish, sea urchins, sand dollars, and sea cucumbers some of which have been found responsible for injuries to humans. Initial injuries by sea urchins are associated with trauma and envenomation,
Jamesson de Macedo Mora+3 more
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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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Variation in purple sea urchin (Strongylocentrotus purpuratus) morphological traits in relation to resource availability [PDF]
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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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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Species and Abundance of Sea Urchins (Diadematidae) on Different Environmental Pressure Conditions
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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The behavior of sympatric sea urchin species across an ecosystem state gradient [PDF]
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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