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https://hdl.handle.net/10316/25632
Título: | Population Studies and Carrageenan Properties in Eight Gigartinales (Rhodophyta) from Western Coast of Portugal | Autor: | Pereira, L. | Data: | 2013 | Editora: | Hindawi Publishing Corporation | Título da revista, periódico, livro ou evento: | The ScientificWorld Journal | Volume: | 2013 | Resumo: | Eight carrageenophytes, representing seven genera and three families ofGigartinales (Florideophyceae),were studied for 15months. The reproductive status, dry weight, and carrageenan content have been followed by a monthly random sampling. The highest carrageenan yields were found in Chondracanthus acicularis (61.1%), Gigartina pistillata (59.7%), and Chondracanthus teedei var. lusitanicus (58.0%). Species of Cystocloniaceae family produces predominantly iota-carrageenans; Gigartinaceae family produces hybrid kappa-iota carrageenans (gametophytic plants) and lambda-family carrageenans (sporophytic plants); Phyllophoraceae family produces kappa-iota-hybrid carrageenans. Quadrate destructive sampling method was used to determine the biomass and line transect. Quadrate nondestructive sampling method, applied along a perpendicular transect to the shoreline, was used to calculate the carrageenophytes cover in two periods: autumn/winter and spring/summer. The highest cover and biomass were found in Chondrus crispus (3.75%–570 g/m2), Chondracanthus acicularis (3.45%–99 g/m2), Chondracanthus teedei var. lusitanicus (2.45%–207.5 g/m2), and Mastocarpus stellatus (2.02%–520 g/m2). | URI: | https://hdl.handle.net/10316/25632 | DOI: | 10.1155/2013/939830 | Direitos: | openAccess |
Aparece nas coleções: | FCTUC Ciências da Vida - Artigos em Revistas Internacionais |
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939830.pdf | 1.83 MB | Adobe PDF | Ver/Abrir |
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