Morphological Characteristics and Habitats of Red Seaweed Gracilaria spp. (Gracilariaceae, Rhodophyta) in Santubong and Asajaya, Sarawak, Malaysia
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Abstract
Red seaweed Gracilaria, one of the largest genus in Division Rhodophyta inhabits Sarawak coastal water. This study was designed to identify the species of Gracilaria using morphological approach and to assess selected water quality parameters in Gracilaria habitats. Three field samplings were carried out in Santubong and Asajaya, Sarawak from November 2013 to December 2014. Overall, three species were identified namely Gracilaria changii, G. blodgettii and G. coronopifolia, attached to net of cage culture in Santubong and root of mangrove trees in Asajaya. In addition, three different taxa of aquatic macroinvertebrates (polychaete, small crab, bivalve) and single species of red seaweed (Acanthophora sp.) were observed in Gracilaria assemblages. An estimate of 37% to 40% of the upper part of the cage net in Santubong was covered by seaweeds and only 16% to 20% in Asajaya’s mangrove. The study had provided better information on identification of Gracilaria and their habitat in Sarawak. Future work involving DNA barcoding of each species is in progress.
Rumput laut merah Gracilaria, salah satu genus terbesar bagi spesies Rhodophyta yang mendiami pesisir pantai Sarawak. Kajian ini dijalankan untuk mengenal pasti spesies Gracilaria menggunakan pendekatan morfologi dan untuk menilai parameter kualiti air terpilih dalam habitat Gracilaria. Tiga pensampelan lapangan dijalankan di Santubong dan Asajaya, Sarawak dari November 2013 hingga Disember 2014. Secara keseluruhannya, tiga spesies telah dikenal pasti iaitu Gracilaria changii, G. blodgettii dan G. coronopifolia, yang tersangkut pada jaringan sangkar di Santubong dan akar pokok bakau di Asajaya. Di samping itu, tiga jenis makroinvertebrata akuatik (polychaete, ketam kecil, dwicangkerang) dan spesies tunggal rumput laut merah (Acanthophora sp.) diperhatikan dalam himpunan Gracilaria. Anggaran 37% hingga 40% daripada bahagian atas sangkar di Santubong dilindungi oleh rumpai laut dan hanya 16% hingga 20% di bakau Asajaya. Kajian ini telah memberikan maklumat yang lebih baik mengenai pengenalan Gracilaria dan habitat mereka di Sarawak. Kajian masa depan yang membabitkan pengkodan DNA bagi setiap spesies juga sedang dijalankan.
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References
Aminot A and Rey F. (2000). Standard procedure for the determination of chlorophyll a by spectroscopic methods. ICES Techniques in Marine Environmental Sciences, 1–17.
Ariffin M K F. (2006). Seaweed community in Asajaya mangrove area (Unpublished Bachelor thesis). Universiti Malaysia Sarawak, Sarawak, Malaysia.
Baghel R S, Kumari P, Bijo A J, Gupta V, Reddy C R K and Jha B. (2011). Genetic analysis and marker assisted identification of life phases of red alga Gracilaria corticata (J. Agardh). Molecular Biology Reports 38: 4211–4218. https://doi.org/10.1007/s11033-010-0543-y
Buchanan J B. (1984). Methods for the study of marine benthos. Victoria, Australia: Blackwell Scientific Publications. Buschmann A H, Correa J A, Westermeier R, Hernandez-Gonzalez C and Norambuena R. (2001). Red algal farming in Chile: a review. Aquaculture 194: 203–220. https://doi.org/10.1016/S0044-8486(00)00518-4
Chan C X, Ho C L, Othman R Y and Phang S M. (2002). Optimisation of RNA extraction for Gracilaria changii (Gracilariales, Rhodophyta). In Phang S M, Chong V C, Mokhtar N and Ooi J L S. (eds.), Marine science into the new millenium: New perspectives & challenges. Kuala Lumpur, Malaysia: Maritime Research Centre.
Coelho S, Gamito S and Perez-Ruzafa A. (2007). Trophic state of Foz de Almargem coastal lagoon (Algarve, South Portugal) based on the water quality and the phytoplankton community. Estuarine, Coastal and Shelf Science 71: 218–231. https://doi.org/10.1016/j.ecss.2006.07.017
Department of Environment (DOE). (2010). Malaysia marine water quality criteria and standard. http://www.doe.gov.my/portalv1/en/info-umum/piawaian-dan-kriteriakualiti-airmarinmalaysia/301 (Accessed on 11 March 2016)
Dhargalkar V K and Kavlekar D. (2004). Seaweeds: A field manual. Goa, India: National Institute of Oceanography.
Esa F A. (2014). Taxanomy, species composition and ecology of seaweed plus preliminary molecular assessment of Caulerpa spp. in Satang and Sampadi Island, Sarawak (Unpublished Master thesis). Universiti Malaysia Sarawak, Sarawak, Malaysia.
Food and Agriculture Organisation (FAO). (1990). Training manual of Gracilaria culture and seaweed processing in China. http://www.fao.org/docrep/field/003/ab730e/AB730E00.htm#TOC (Accessed on 20 December 2015)
Ganesan M, Sahu N and Eswaran K. (2011). Raft culture of Gracilaria edulis in open sea along the south-eastern coast of India. Aquaculture 321: 141–151. https://doi.org/10.1016/j.aquaculture.2011.08.040
Gulbransen D J, McGlathery K J, Marklund M, Norris J N and Gurgel C F D. (2012). Gracilaria vermiculophylla (Rhodophyta, Gracilariales) in the Virginia coastal bays, USA: cox1 analysis reveals high genetic richness of an introduced macroalga. Phycological Society of America 48: 1278–1282.
Hach. (2007). DR 2800 Spectrophotometer procedures manual. http://www.hach.com/asset-get.download.jsa?id=7639982436 (Accessed on 10 November 2014)
Ismail A. (1995). Rumpai laut Malaysia. Kuala Lumpur, Malaysia: Dewan Bahasa dan Pustaka.
Jacobs Engineering Group. (2010). Standard operating procedure: Total suspended solids determination using vacuum filtration and oven drying. http://waterfacts.net/Treatment/Activated_Sludge/Wastewater_Tests/TSS/TVAKIFSOP49_Total_Suspended_Solids__Apr_10_.pdf (Accessed on 30 January 2015)
Jusoh N I. (2012). Seaweed community from intertidal areas of Satang Besar Island, Sarawak (Unpublished Master thesis). Universiti Malaysia Sarawak, Sarawak, Malaysia.
Kaliaperumal N, Chennubhotla V S K, Kalimuthu S, Ramalingam J R and Muniyandi K. (1993). Growth of Gracilaria edulis in relation to environmental factors in field cultivation. Seaweed Research and Utilization 6: 167–176.
Lin S M. (2009). Marine benthic macroalgal flora of Taiwan. Taiwan: National Taiwan Ocean University Publication.
Molloy F J and Bolton J J. (1995). Distribution, biomass and production of Gracilaria in Luderitz Bay, Namibia. Journal of Applied Phycology 7: 381–392. https://doi.org/10.1007/BF00003795
Noraini R, Gandaseca S, Johan I and Jailan M I. (2010). Comparative study of water quality at different peat swamp forest of Batang Igan, Sibu Sarawak. American Journal of Environmental Sciences 6: 416–421.
Nurridan A H. (2007). Seaweeds of Sarawak Malaysia Borneo. Sarawak, Malaysia: Fisheries Research Institute.
Nurridan A H. (2013). Diversity and new record of seaweed in Sarawak. In Nyanti L, Norhadi I, Samsur M, Hassan R & Rahim S A K A. (eds.), Aquatic Science Colloqium 2012: Experience Sharing in Aquatic Science Research II, Talang-Satang National Park to Santubong. Sarawak, Malaysia: Department of Aquatic Science.
Nyberg C D, Thomsen M S and Wallentinus I. (2009). Flora and fauna associated with the introduced red alga Gracilaria vermiculophylla. Europe Journal Phycology 44: 395–403. https://doi.org/10.1080/09670260802592808
Othman M N A, Hassan R, Harith M N and Sah A S R M. (2015). Red seaweed Gracilaria arcuata in cage culture area of Lawas, Sarawak. Borneo Journal of Resource Science and Technology 5: 53–61.
Phang S M, Lim P E and Thong K W. (2001). Molecular differentiation of two morphological variants of Gracilaria salicornia. Journal of Applied Phycology 13: 335–342. https://doi.org/10.1023/A:1017532624398
Robba L, Russell S J, Barker G and Brodie J. (2006). Assessing the use of the mitochondrial cox1 marker for use in DNA barcoding of red algae (Rhodophyta). American Journal of Botany 93: 1101–1108. https://doi.org/10.3732/ajb.93.8.1101
Saunders G W. (2009). Routine DNA barcoding of Canadian Gracilariales (Rhodophyta) reveals the invasive species Gracilaria vermiculophylla in British Columbia. Molecular Ecology Resources 9: 140–150. https://doi.org/10.1111/j.1755-0998.2009.02639.x
Suratman S, Hussein A N A R, Latif M T and Weston K. (2014). Reassessment of physicochemical water quality in Setiu Wetland, Malaysia. Sains Malaysiana 43: 1127–1131.
Tucker C S and D’Abramo L R. (2008). Managing high pH in freshwater ponds. http://www.ca.uky.edu/wkrec/High-pH-Ponds.pdf (Accessed on 20 January 2016).
Veeragurunathan V, Eswaran K, Malarvizhi J and Gobalakrishnan M. (2014). Cultivation of Gracilaria dura in the open sea along the southeast coast of India. Journal of Applied Phycology 26: 1–13.
Wong S C, Harah Z M, Sidik B J and Arshad A. (2012). Comparison of seaweed communities of the two rocky shores in Sarawak, Malaysia. Coastal Marine Science 35: 78–84.
Zakaria M H, Bujang J S, Amit R, Awing, S A and Ogawa H. (2006). Marine macrophytes: Macroalgae species and life forms from Golden Beach, Similanjau National Park, Bintulu, Sarawak, Malaysia. Coastal Marine Science 30: 243–246.
Zawawi M H, Idris M H, Kamal A H and Wong S K. (2015). Taxanomic assessment of seaweed community from the coastal areas of Bintulu, Sarawak, Malaysia. Songklanakarin Journal of Science & Technology 37: 147–153.