The diversity of macroalgae epiphytes on the thallus surface of Kappaphycus Spp in Serewe Bay, East Lombok

Abstract

Kappaphycus spp are seaweed that is widely cultivated by coastal communities. The community grows Kappaphycus spp because it has economically profitable. Although Seaweed cultivation often experienced failures caused by environmental, herbivorous, and epiphytic factors. This study aims to determine what type of epiphytes grow on the surface of the thallus Kappaphycus spp. Sampling was conducted at the seaweed cultivation location in Serewe Bay, East Lombok. The sampling stations were determined using the purposive sampling method. Data is displayed as a tabular form and analyzed descriptively. A total of 21 epiphytic species were found in K. alvarezii and K. striatum, namely Ulva compressa, Chaetomorpha crassa, Hypnea sp, H. valentiae, H. saidana, H. pannosa, Spyridia hypnoides, S. filamentosa, Heterosipnonia japonica, H. crispella, Ceramium cingulatum, Ceramium flaccidum, Antithamnionella breviramosa, C. clarionensis, Acantophora spicifera, Bostrichia tenella, Polisiphonia sp., Polisiphonia foetidissima, Tolypiocladia glomerulata, Wrangelia gordoniae, W. tanegana., One species is found only in Kappaphycus alvarezii namely Padina minor. Five species are found only in K. striatum, namely Dictyota mayae, Ceramium cimbricum, Laurencia papillosa, Amphiroa sp. C. cimbricum is one species that found in two culture method. All environmental parameters are optimal, except for the brightness and water flow in the bottom culture method.