Results 51 to 60 of about 14,394 (155)
Revision of new species of Eocene sea urchins from Istria, described in the 19th and 20th centuries
Geologija, 2008 In paper are presented drawings and pictures of sea urchins from original works of authors who determined and documented new species from Istria.
Vasja Mikuž
doaj
Scientia Marina, 2006 Diadema antillarum Philippi occurs in high density populations in the Canary Islands, creating extensive barren areas. During one year we determined seasonal changes in the algal abundance and population densities, test diameter, gut contents ...
José Carlos Hernández +6 more
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Mapping the distribution of sea urchin (Echinoidea) and benthic habitat using drone in the waters of Lancang Island [PDF]
BIO Web of ConferencesSea urchins are valuable marine creatures that live in the waters of Indonesia, and typically found in seagrass and coral reefs. This study aimed to determine the distribution of sea urchins and the benthic characteristics that serve as their habitat ...
Sastraantara Muhammad Sony +2 more
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MICROPAPILLAE IN SEA URCHIN EGGS* [PDF]
Development, Growth and Differentiation, 1976 Sea urchin eggs fixed in a glutaraldehyde-calcium chloride mixture have "micropapillae" with a dense content. If these structures are real, they are likely to be sites where a fusion with the spermatozoon can take place. It is possible however that they represent some kind of preparation artefact without a structural counterpart in the living state.
openaire +2 more sources
Aquaculture boosts urchin roe production
California Agriculture, 1997 Red sea urchins, with their hedge-hoglike shells and five skeins of edible golden roe, are a gourmet treat, especially in Asia. Each year California divers harvest as many as 25 million pounds of the red sea urchins that many people find delicious and ...
Susan McBride
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Micromechanics of Sea Urchin Spines
PLoS ONE, 2012 The endoskeletal structure of the Sea Urchin, Centrostephanus rodgersii, has numerous long spines whose known functions include locomotion, sensing, and protection against predators. These spines have a remarkable internal microstructure and are made of single-crystal calcite.
Tsafnat, Naomi +3 more
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BiologyGrowth differentiation among farmed sea urchins (Strongylocentrotus intermedius) poses a significant challenge to aquaculture, with there being a limited understanding of the underlying molecular mechanisms. In this study, sea urchins with varying growth
Qi Ye +10 more
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Laboratory on sea urchin fertilization [PDF]
Molecular Reproduction and Development, 2011 AbstractSince about 1880, the eggs and sperm of sea urchins have been used for the study of fertilization, the metabolic activation of development and gene regulatory mechanisms governing embryogenesis. Sea urchin gametes are a favorite material for observations of the process of fertilization in advanced high school, community college, and university ...
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BiologyTussah immunoreactive pupa powder (IPP) is composed of various active substances. We speculated that it has the potential to improve key economic traits of sea urchins.
Shufeng Li +8 more
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