Abstract
Abstract - A new flotaton model for the experimental culture of macroalgae Kappaphycus alvarezii (Doty) Doty ex P.C. Silva is described and illustrated. The ellipsis-shaped 90L apparatus is made of medium density virgin polyethylene, measuring 2000mm long x 300mm wide x 200mm high, and weighing 9kg. The device has been successfully tested in the litoral region of the state of Santa Catarina, Brazil, throughout the experimental period. Contrastingly to traditional models available on the market, with their instability in strong sea currents, the current model is an alternative to enhance algae-mollusks integrated culture, by providing stability to culture structures. It may also serve as a spacer and support for mooring of double long lines. Resumo - Um novo modelo de flutuador para o cultvo experimental da macroalga Kappaphycus alvarezii (Doty) Doty ex P.C. Silva e descrito e ilustrado. Confeccionado em polietleno virgem de media densidade, possui formato eliptico e dimensoes de 2000 mm de comprimento x 300 mm de largura x 200 mm de altura, com volume de 90 litros e peso de 9kg. O aparato foi testado na regiao costeira catarinense e obteve grande exito durante todo o periodo experimental. Diferentemente dos modelos tradicionalmente disponiveis no mercado, cujo principal entrave diz respeito a sua instabilidade ante as fortes correntes marinhas litorâneas, o presente modelo emerge como uma alternativa para viabilizar o cultivo integrado de algas e moluscos, oferecer estabilidade as estruturas de cultivo e servir, ao mesmo tempo, como espacador e suporte para amarracao de long lines duplos.
Highlights
A new flotation model for the experimental culture of macroalgae Kappaphycus alvarezii (Doty) Doty ex P.C
In 2008, IBAMA authorized the introduction of the species in the Sambaqui beach, Florianópolis, Santa Catarina (HAYASHI et al, 2011) and, more recently, further warrants have been provided to other municipalities, such as Penha and Governador Celso Ramos, in the state of Santa Catarina, in 2017
These activities have triggered the production of data on the capacity of the culture and its adaptation to local environmental conditions such as environmental safety of sea culture (HAYASHI et al, 2011; CASTELAR et al, 2015; CARVALHO et al, 2015) and the seasonality of production (HAYASHI et al, 2011)
Summary
A new flotation model for the experimental culture of macroalgae Kappaphycus alvarezii (Doty) Doty ex P.C. Novo modelo de flutuador para o cultivo experimental da macroalga Kappaphycus alvarezii em Florianópolis, Brasil Resumo - Um novo modelo de flutuador para o cultivo experimental da macroalga Kappaphycus alvarezii (Doty) Doty ex P.C. Silva é descrito e ilustrado.
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