An initial comparison of tubular netting versus tie–tie methods of cultivation for Kappaphycus alvarezii (Rhodophyta, Solieriaceae) on the south coast of Rio de Janeiro State, Brazil

A new cultivation technique for Kappaphycus alvarezii was used in the Brazilian southeastern coast (23°02′25″ S and 43°53′39″ W), the tubular netting on floating rafts. The tubular net technique (TN) was compared with the current method of tie–tie (TT). After 47 days, the daily growth rate (mean ± S...

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Bibliographic Details
Published in:Journal of applied phycology 2011-06, Vol.23 (3), p.607-613
Main Authors: de Góes, Henrique Geromel, Reis, Renata Perpetuo
Format: Article
Language:English
Subjects:
Biomedical and Life Sciences
Ecology
Freshwater
Freshwater & Marine Ecology
Kappaphycus alvarezii
Life Sciences
Plant Physiology
Plant Sciences
Rhodophyta
Solieriaceae
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Summary:A new cultivation technique for Kappaphycus alvarezii was used in the Brazilian southeastern coast (23°02′25″ S and 43°53′39″ W), the tubular netting on floating rafts. The tubular net technique (TN) was compared with the current method of tie–tie (TT). After 47 days, the daily growth rate (mean ± SD of TN and TT = 3.4 ± 0.7% day −1 ), carrageenan yield (mean ± SD of TN and TT = 36 ± 1.3%), gel strength (mean ± SD of TN and TT = 730 ± 114.5 g cm²), and viscosity (mean ± SD of TN and TT = 350 ± 60.4 cP) did not differ between the two techniques ( p  > 0.05). The amount of time used to plant (TT = 30.2 ± 2.3 min and TN = 13.3 ± 3.4 min) and to harvest the seedlings (TT = 36.2 ± 2.7 min and TN = 17.8 ± 3.7 min) were lower in TN ( p  
ISSN:0921-8971
1573-5176
DOI:10.1007/s10811-010-9647-y