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dc.contributor.authorBorlongan, Iris Ann G.
dc.contributor.authorTibubos, Keneth R.
dc.contributor.authorYunque, Dianne Aster T.
dc.contributor.authorHurtado, Anicia Q.
dc.contributor.authorCritchley, Alan T.
dc.date.accessioned2012-06-13T11:39:35Z
dc.date.available2012-06-13T11:39:35Z
dc.date.issued2011
dc.identifier.citationBorlongan, I.A.G., Tibubos, K.R., Yunque, D.A.T., Hurtado, A.Q., Critchley, A.T. (2011). Impact of AMPEP on the growth and occurrence of epiphytic Neosiphonia infestation on two varieties of commercially cultivated Kappaphycus alvarezii grown at different depths in the Philippines. Journal of Applied Phycology 23(3):615-621en
dc.identifier.issn0921-8971
dc.identifier.urihttp://hdl.handle.net/10862/982
dc.descriptionFrom the issue entitled "Special Issue: Twentieth International Seaweed Symposium".en
dc.description.abstractTwo varieties of the carrageenophyte Kappaphycus alvarezii (Tungawan, TUNG; and Giant tambalang, GTAM) from Zamboanga Sibugay, Philippines were used to test the efficacy of Acadian Marine Plant Extract Powder (AMPEP) as source of nutrients for growth, and to determine if applications had any effect on the percent occurrence of an epiphytic infestation of the red alga Neosiphonia sp. at four different depths in the sea. Results showed that the use of AMPEP significantly (P < 0.05) increased the growth rate of both Kappaphycus varieties tested but decreased the percent occurrence of Neosiphonia sp. The percent occurrence of Neosiphonia sp. infection (6–50% at all depths) of both Kappaphycus varieties with AMPEP treatment was significantly lower than the controls (i.e., 10–75% at all depths). Both the growth rate of the cultivated seaweed and the percent occurrence of the epiphytes decreased as the cultivation depth increased. Plants dipped in AMPEP and suspended at the surface had the highest growth rates (i.e., 4.1%, TUNG; 3.1%, GTAM) after 45 days; those without AMPEP dipping had the highest percent occurrence of Neosiphonia infection (viz. 70–75%). The occurrence of Neosiphonia infestation was found to be correlated with changes in irradiance and salinity at the depths observed. The results suggested that both varieties of K. alvarezii used in this study have the fastest growth rate when grown immediately at the water surface. However, in order to minimize damage caused by the occurrence of epiphytic Neosiphonia, K. alvarezii should be grown within a depth range of 50–100 cm. These observations are important for the improved management of Kappaphycus for commercial farming. Furthermore, the use of AMPEP treatments for enhancement of growth and reduction deleterious Neosiphonia sp. infections is encouraging.en
dc.language.isoenen
dc.publisherSpringeren
dc.subjectNeosiphonia
dc.subjectKappaphycus
dc.subjectKappaphycus alvarezii
dc.subjectPhilippinesen
dc.subjectAMPEP
dc.subjectOccurrenceen
dc.subjectCultivation depthen
dc.titleImpact of AMPEP on the growth and occurrence of epiphytic Neosiphonia infestation on two varieties of commercially cultivated Kappaphycus alvarezii grown at different depths in the Philippinesen
dc.typeArticleen
dc.date.updated2012-06-13T11:28:48Z
dc.identifier.doi10.1007/s10811-010-9649-9
dc.citation.volume23
dc.citation.issue3
dc.citation.spage615
dc.citation.epage621
dc.citation.journalTitleJournal of Applied Phycologyen
dc.subject.asfaGrowth rateen
dc.subject.asfaInfestationen
dc.subject.asfaSalinity effectsen
dc.subject.asfaDisease controlen
dc.subject.asfaSeaweedsen
dc.subject.asfaAquacultureen
dc.subject.asfaEpiphytesen
dc.subject.asfaLight effectsen
dc.subject.asfaPowderen
dc.subject.asfaIrradianceen
dc.subject.asfaNutrientsen
dc.subject.asfaPlant extractsen
dc.subject.asfaInfectionen
dc.subject.asfaTesting Proceduresen
dc.subject.asfaSalinityen
dc.subject.asfaPlant growthen
dc.subject.asfaVarietiesen
dc.subject.asfaGrowth rateen
dc.subject.asfaAlgaeen
dc.subject.asfaCultivationen


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