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Wyszukujesz frazę "sea urchin" wg kryterium: Temat


Wyświetlanie 1-2 z 2
Tytuł:
Extraction and analysis of carotenoids from the New Zealand sea urchin Evechinus chloroticus gonads
Autorzy:
Garama, Daniel
Bremer, Phil
Carne, Alan
Powiązania:
https://bibliotekanauki.pl/articles/1039782.pdf
Data publikacji:
2012
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
Evechinus chloroticus
carotenoid extract lipid contamination
sea urchin gonad
carotenoid extraction and analysis
Opis:
Sea urchin gonad (roe) is a highly valued food in Japan and North America. Gonad price is strongly influenced by quality, with appearance, especially colour being a major determinant. Previous attempts to extract a carotenoid profile from the New Zealand sea urchin species Evechinus chloroticus have been challenging due to the large amount of lipid present in the gonad. A carotenoid extraction and high performance liquid chromatography (HPLC) analysis method was developed to reduce lipid contamination by incorporating a saponification and lipid cold precipitation in the extraction procedure. This method enabled greater carotenoid purity and enhanced analysis by HPLC. Echinenone was found to be the main carotenoid present in all E. chloroticus gonads. Dark coloured gonads contained higher levels of fucoxanthin/fucoxanthinol, β-carotene and xanthophylls such as astaxanthin and canthaxanthin. This information on the modification and deposition of carotenoids will help in the development of diets to enhance gonad colour.
Źródło:
Acta Biochimica Polonica; 2012, 59, 1; 83-85
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Abundance and distribution of sea urchins (Echinoidea Leske, 1778) on coral reefs in the waters of Latondu Island, Taka Bonerate, South Sulawesi, Indonesia
Autorzy:
Malik, Prasetia Maulana
Riyantini, Indah
Yuliadi, Lintang Permata Sari
Hamdani, Herman
Powiązania:
https://bibliotekanauki.pl/articles/1076619.pdf
Data publikacji:
2019
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Diadema antillarum
Diadema setosum
Echinoidea
Echinometra mathaei
Echinotrix calamaris
Echinotrix diadema
Heterocentrotus mammillatus
Latondu Island
Mespillia globulus
abundance
coral reef
distribution
sea urchin
Opis:
Sea urchin is one of the key biota of coral reef stability. Research on the abundance and distribution of urchins was carried out from January-August 2019 and field data retrieval occurred in March 2019 on Latondu Island, Taka Bonerate. This study aims to determine the relationship between sea urchin abundance with coral reef conditions and sea urchin distribution patterns in the waters of Latondu Island, Taka Bonerate. Observation of coral reefs and sea urchins was carried out at 3 stations with different criteria of coral reef conditions. Retrieval of coral reef data was done using the Point Intercept Transect (PIT) method, while sea urchin observation came about via a transect belt method. The results showed that in the waters of the island of Latondu, there were 133 sea urchins from 7 species of the Echinoidea class, namely Diadema setosum, Diadema antillarum, Echinometra mathaei, Echinotrix calamaris, Mespillia globulus, Heterocentrotus mammillatus and Echinotrix diadema. The largest abundance of sea urchins was found in Station 3 on the southern part of Latondu Island with 12 ind / 50m2, while Station 1 in the northeast and Station 2 in the northwest part showed 5 ind / 50m2. Sea urchin distribution at Station 1 with a value of 0.79 was uniform, Station 2 with a value of 0.80 was also uniform and Station 3 with a value of 0.91 was uniform as well. The relationship between Sea urchin and coral reef was 0.56, which meant the relationship was moderate and directly proportional.
Źródło:
World News of Natural Sciences; 2019, 27; 59-72
2543-5426
Pojawia się w:
World News of Natural Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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