the tip; cryptostomata numerous and scattered. Eds): Taxonomy of Economic Seaweeds with reference to some Pacific species. A few, such as Gelidiella acerosa and species of Gracilaria and Sargassum, are widely used in many parts of the country. Castro, P. and Huber, M. 2009. The brown seaweed Sargassum siliquosum is among the most common species with economic potential in the Philippines. Checklist of Malaysian, Ocean and Earth Sciences, University of Malaya, C308, IPS Building, 50603 Kuala, the UP Marine Science Institute (UP-MSI) and a Master of Environment and Natural, Resources Management (MENRM) student at the University, Considered as the Father of Modern Philippine Phycology, 40 years of contribution to the studies on the diversity. others (2008) from Malaysia except that the material is shorter, have less muricate branches. It is free-floating seaweed and will not attach to the ocean floor; its movements depend solely on ocean currents. Sargassum accounted for about 35 to 85% of the monthly algal standing crop of the bed, and the observed variation in overall standing crop of the bed generally reflected the standing crop of Sargassum. 27517 (Female, 15.xii.2009), 27518 (Female, 15.xii.2009), 27519 (Male, toothed female receptacles (arrow); c. Portion of the branch showing terete male. Agardh. The proposed new species is known only from Panay and Palawan islands in the western central Philippines. Plants up to 101 cm long, holdfast incomplete (damaged) but appears to be discoid. All figure content in this area was uploaded by Wilfred John E. Santiañez, All content in this area was uploaded by Wilfred John E. Santiañez on Oct 20, 2014, ISSN 0115-7809 Print / ISSN 2012-0818 Online, Quezon are presented. Tax calculation will be finalised during checkout. Gerardo Pt. All rights reserved. Coastal Marine Science 35(1): 182-201. Eight morphotypes were distinct, six of which were recognized. Nat Prod J 3:268–291, Nizamuddin M (1962) Classification and the distribution of the Fucales. Modelo RB, Umezaki I. Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations. Ten speci es of Sargassum (Sargassaceae, Phaeophyceae) were found along the Gulf of Thailand. long, 0.5mm wide; slightly compressed near base, becoming flattened towards an. were poorly correlated with the environmental factors observed. Many resident and transient species use the seagrasses for … Philippine species, Sargassum yamadae Trono, which is a later homonym of S. yamadae Yoshida & T. Konno. Sargassum is a very large genus (nearly 400 species) of worldwide distribution. The Philippines exports semi-processed or dried Eucheuma to world markets (Europe, US, Japan) and Portion of the branch showing, but is distinct from the latter because of the doubling of, J. Agardh. The valorisation of Sargassum from beach inundations. Five taxa were recognized on the basis of morphological characters and corroborated by DNA analyses of the nuclear internal transcribed spacer 2 (ITS-2), chloroplastic partial rbcLS-operon, and mitochondrial cox3. Sargassaceae. World Appl Sci J 6:1326–1334, CAS ABAH Bioflux 15:159–168, Shannon E, Abu-Ghannam N (2016) Antibacterial derivatives from algae: an overview of pharmacological and mechanisms and applications. Primary branches. 16-18; Modelo and Umezaki 1995, p. 25, Plate. Closed canopies of Sargassum occur both at the low intertidal and shallow subtidal levels of southern Brazilian rocky coasts in the absence of sea urchin grazing. The culture ofthis species started in the early 1950s inthe island of Mactan, province of Cebu,Central Visayas. 358 Sargassum species, belonging to 3 sub-genera (Algaebase 2020). mm wide; phyllocystic; apex sometimes round or mucronate. Cosmetics 5:68, Phillips N (1995) Biogeography of Sargassum (Phaeophyta) in the Pacific basin. on near-shore Caribbean seagrass communities. This resulted in a fast growing library of documented digital pictures which is obviously important for many people such as zoologists, museologists, divers, photographers, and others. 480 fish species identified in the gulf, 131 or 27% are seaweed-associated or these fishes have utilized the seaweed habitat for juvenile settlement, refuge, breeding and feeding sites. Five species ( S. baccul aria, S. cinereum , S. longi fructum , S. polycystum and the unidentified species) belong to the section Zygocarpi cae (J.G. California Sea Grant College, La Jolla, CA, USA. is a new record for the Philippines. To mitigate global warming, the Philippines mandated the use of biofuel through the Biofuel Act of 2006. those by Modelo and Umezaki (1995) were reported to bear female receptacles. Agardh, S. longifructum Tseng et Lu, S. Islands based on morphological and molecular analyses. Hence, the potential of seaweed resources as the most accessible energy source for coastal and island communities of the Philippines was explored for methane fermentation. Sm. Philipp J Sci Monog 17:11–22, Montaño MNE, Rodriguez MRC, Balitaan RL (2006) Ethnobotany of Sargassum spp. Part of Springer Nature. appearance of the thallus is similar to that of, of the leaf shape, the phyllocystic vesicles, and the receptacles of, are terete near the base becoming flattene, species may be an undescribed and/or unreported species; howe, are needed to elucidate the range of morphological variations for the species and a, Material examined: T27534 (Male, 16.xii.2009), Plants up to 21.5 cm long; holdfast discoid; main axis very short, up to 3.5 mm, the base; up to 21 cm long. Only fertile materials were selected and. In: Abbott IA (ed) Taxonomy of economic seaweeds with reference to some Pacific species, vol. RAPD analysis showed that the presence of the stolon is an important character for separating S. baccularia (no stolon) from S. polycystum (stolon) and S. stolonifolium (stolon). adaxial part oblique, giving the leaves a long-stalked appearance; apex rounded to, obtuse; midrib evanescent; cryptostomata distinct, elevated with a tendency to be. Agardh, S. crassifolium J.G . The centric diatom, Odontella rhombus (Ehr.) This study describes the culture of S. siliquosum from land-based hatchery to out-planting in the open sea. Sargassum species was carried out to have a better understanding of the taxonomy. Sargassum binderi was shown to be different from S. oligocystum (SD>0.5 = 14.11%), indicating the importance of the vesicle and receptacle in species differentiation. This study describes the culture of S. siliquosum from land-based hatchery to out-planting in the open sea. J Med Plant Stud 5:382–387, Bureau of Fisheries and Aquatic Resources (BFAR), Republic of the Philippines (2014) Fisheries Administrative Order No. Phycol Res 47:61–64, Zhang QS, Tang YZ, Liu SK, Zhang SB, Lu ZC, Cu SH, Yu YQ (2012) Zygote-derived seedling production of Sargassum thunbergii: focus on two frequently experienced constraints in tank culture of seaweed. Although this character is not mentioned in T, cryptostomata along the branches giving them a lumpy appearance; receptacles are, racemosely arranged (instead of being in dense panicles), and the sometimes. New species of Sargassum form the Philippines. the branch showing terete male receptacles; c. Cross-section of male receptacle, (conceptacles indicated by arrow); d. Portion of the branch showing protuberances, found at the basal one-third of the branch, becoming few towards the tip. Sargassum natans, the type species of the genus Sargassum. Largo, D.B., Diola, A.G. & Rance, G.M.S. near base, becoming serrated, triquetrous and/or twisted, towards the tip. Male, Remarks: Chiang and others (1992) reported that the diagnostic charact, and the abundance of small vesicles in mature plants. The two other remaining materials were unidentif ied and are described here in detail. In: Ohno M, Critchley AT (eds) Seaweed cultivation and marine ranching. Issue special permits for the importation into and exportation from the Philippines of any fish, mollusks, crustaceans or amphibians or other aquatic animal adult, young, or fry or fish eggs for propagation or other purposes. These are based on collections made on the spot. J. Exp. Growth and changes in the morphology of the two most common species, S. paniculatum and S. siliquosum, were noted throughout their different growth phases over 11/2 years. 1-3 mm long, 1-2.5 mm wide; cryptostomata distinct and elevated; apex rounded; to 5 mm long, 1 mm wide; terete and lumpy; racemosely arranged. 1. a. Phaeophyceae) of the Philippines. production is now concentrated in two species of Eucheuma and Caulerpa letillifera (RAPA, 1986). Renew Sust Energ Rev 15:4432–4435, Borines MG, de Leon RL, Cuello JL (2013) Bioethanol production from the macroalgae Sargassum spp. discriminating This work attempts to resolve (some of) the complex and problematic taxonomy, molecular phylogeny, and classification of taxa under the brown marine macroalgal family Scytosiphonaceae. An approximately 10,000 species of pteridophytes are known in the world today. Biotechnol Adv 32:1028–1036, Milledge JJ, Harvey PJ (2016) Golden tides: problem or golden opportunity? However, reports on its culture are non-existent. Bioresour Technol 138:22–29, CAS 2008. and S. paniculatum J. Ag. Morphological characteristics of Sargassum The Philippines, home to one of the most diverse Sargassum resources in the western Pacific basin, has more than 40 species of Sargassum. Br Phycol J 2:331–351, Vairappan CS (2006) Seasonal occurrences of epiphytic algae on the commercially cultivated red alga Kappaphycus alvarezii (Solieriaceae, Gigartinales, Rhodophyta). Further studies on anaerobic digestion conditions of the selected seaweeds that are suitable for utilization by island communities should also be conducted. Only male plants were available for examination. Agar dh) Setchell. In: Abbott IA (ed) Taxonomy of economic seaweeds with reference to some Pacific and Western Atlantic species. © 2021 Springer Nature Switzerland AG. Secondary branches. Studies on the taxonomy of the genus Sargassum (Phaeophyta) and the phenology and some aspects of the ecology of S. Siliquosum J. Ag. Average monthly biomass was species-specific and significantly influenced by the effect of fertility states of the seaweed, collecting zone, and collecting months. Aquaculture Rep 16:100265, Arugay ANP, Caparanga AR (2009) Reusability of Sargassum cristaefolium in sorption-desorption of Pb2+, Cu2+ and Ni2+ in batch and fixed-bed systems. Reproductive plants had more biomass than vegetative plants. The species diversity of the subgenus Sargassum was reassessed for the southwestern Pacific with special focus on the Solomon Islands, Vanuatu, Fiji, and Wallis. This study describes the culture of S. siliquosum from land-based hatchery to out-planting in the open sea. tip, sometimes triquetrous and/or twisted, warty and toothed. Accessed 5 June 2020, BFAR (2017) Online Information System. At all sites Sargassum spp, Turbanaria spp and usually Padina spp are never observed at depth, only in the shallows of 5m or less. Collections of material representing growth stages of the other species were made at periodic intervals. Am J Appl Sci 15:186–197, Calumpang SMF, Navasero MM (2017) Chemical basis for repellency of Sargassum cinctum J. Agardh (Sargaceae) against Asian corn borer, Ostrinia furnacalis (Lepidoptera: Crambidae). 43 H. Haraguchi et al. Cultivars developed more branches after 4 months, at the same time producing receptacles. Subdominant seaweed species was Gelidium amansii, comprising 15.23% (61.52 g wet wt/m2) and 14.70% (39.82 g wet wt/m2) of total biomass at Nachido and Odo Islands, respectively. the Philippines. Materials examined: T27530 (Male, 26.i.2011), 27532. The farming of Sargassum, should also be studied by research institutions like Western Philippines University (WPU) with BFAR to minimize gathering in the wild, he added. Seaweed biomass exhibited an even distribution across the shore gradient from the high intertidal zone to -5-m depth at Nachido Island, whereas seaweed biomass was concentrated from the mid intertidal zone to -1 m depth in the subtidal zone at Odo Island. The most common species were The high demand forthis alga i… Seasonal Variations in Alginate Yield and Viscosity of Sargassum carpophyllum J. Agardh, Sargassum ilicifolium (Turner) C. Agardh and Sargassum siliquosum J. Agardh (Phaeophyta, Sargassaceae), Botanica Marina" on DeepDyve, the largest online rental service for scholarly research with thousands of academic … oblong to elliptical, up to 3 mm long and 2 mm wide; very few cryptostomata; apex rounded, sometimes apiculate or with a very short mucron; pedicels terete, up, receptacles cuneate, racemosely arranged, up to 3.5 mm long, 1 mm wide; flattened. Contribution to the study of the genus Sargassum (Fucales, Phaeophyceae) of the Philippines. oblanceolate, linear to linear-lanceolate, up to 17 mm long, 1-6.5 mm wide; horizontally attached; base asymmetrical, adaxial part highly oblique, giving leaves, a long-stalked appearance, with spines arising perpendicular to the plane of the, blade; margin serrate-dentate; apex round to obtuse; midrib apparent, disappearing, toward the tip, absent in some; cryptostomata elevated, numerous, scattered but, with tendency to be arranged in rows in narrow. Int J Biosci 7:207–215, Titlyanov EA, Titlyanova TV, Pham VH (2012) Stocks and the use of economic marine macrophytes of Vietnam. Agardh, S. siliquosum J.G. (14°13’20.35"N; 121°55’23.77"E), Perez (14°11’34.16"N; 121°55’19.39"E), Sabang (14° 6’22.88"N; 122° 5’30.60"E), and Silangan (14°, 0’35.04"N; 122°11’25.57"E). In this work, we look forward to unraveling and documenting the diversity, distribution, and relationships of seaweeds in the Philippines. Japan International Cooperation Agency, pp 89–113, Largo DB, Ohno M, Critchley AT (1994) Seasonal changes in the growth and reproduction of Sargassum polycystum C. Ag. Habit; b. MoticCam 580 mounted on Motic BA410 Microscope. GCT), together with Marilyn Dayao, Mon Hubilla and Napo Cayabyab. All four species exhibited different zonation, fertility patterns and seasonality in growth and biomass. Environmental parameters of water movement, salinity, number of daytime minus tides, and water temperature were also measured. Female receptacles racemosely arranged, terete near base. Maryne Biology. Limited information is available on other commercially important seaweed such as Gelidium, Sargassum, etc. The brown seaweed Sargassum siliquosum is among the most common species with economic potential in the Philippines. In contrast, seedlings deployed using the bottom culture method survived for 3 months only without signs of further growth mainly due to epiphytism, siltation, and grazing. Rev Biol Trop 57:1271–1281, PubMed Checklist of Malaysian, GC, editors. between Sargassum species. attached ................................................................................................. twisted towards the tip; leaves associated with, triquetrous and/or twisted towards the tip; leaves, associated with receptacles linear to linear-. Taxonomic observations on some Sargassum species in Alabat Island, Quezon are presented. by Ang, Put O., 1955-; Subject: Sargassum -- Philippines -- Balibago (Calatagan, Batangas); Marine algae -- Philippines -- Balibago (Calatagan, Batangas). J ISSAAS 23:103–113, Choi CG, Kim HG, Sohn CH (2003) Transplantation of young fronds of Sargassum horneri for construction of seaweed beds. in the Philippines. some branches modified into branched stolons, with some tips modified into discs for attachment. J Appl Phycol 18:611–617, Valencia JMT, Demafelis RB, Borines MG, Gatdula KM (2015) Bioethanol potential of brown macroalgae (Sargassum spp.). 3) Distribution of Sargassum beds in the 1990s As shown in Figure 5, in the 1990s, changes in the distribution were beginning to be observed clearly. or branched protuberances (muricate); crowded at the distal end of the main axis. Upon close inspection, it is easy to see the many leafy appendages, branches, and round, berry-like structures that make up the plant. Different morphotypes were identified up to species level when. and Sargassum siliquosum J. Ag. The brown seaweed Sargassum siliquosum is among the most common species with economic potential in the Philippines. The Philippines is an archipelago of more than 7000 islands with extensive coastline located in the centre of the coral triangle, ... species. Globefish Research Program vol 24. wet wt/m2 and ranged from 48.35 g in the winter to 451.66 g wet wt/m2 in the spring. just below the tip; cryptostomata numerous, vertically attached, oblong, up to 30 mm long, 9 mm wide; margin entire at the, basal 1/3 especially at the adaxial portion of the leaf, becoming serrate-dentate or, sometimes duplicated towards the tip; apex rounded, sometimes obtuse; base. Plant resources of South–East Asia No. Access scientific knowledge from anywhere. 1995. Materials, University of the Philippines Diliman. Biomass of vegetative or non-fertile plants was highest in September in all species except for S. carpophyllum while minimum biomass was recorded in March for S. carpophyllum and May for S. ilicifolium and S. siliquosum. Learn more about Institutional subscriptions, Aaron-Amper J, Largo DB, Handugan ERB, Nini JL, Alingasa KMA, Gulayan SJ (2020) Culture of the tropical brown seaweed Sargassum aquifolium (Turner) C. Agardh: from hatchery to field out-planting. - 18.104.22.168. Common to the entire country was the use of Sargassum spp. consulted. The members of the genus Sargassum C. Agardh (Phylum Ochrophyta, Class Phaeophyceae, Order Fucales, and Family Sargassaceae) are widely distributed and common in the Indo-Pacific region. dentate; apex rounded or obtuse; midrib apparent, disappearing near the tip; 3 mm long and 3 mm wide; lumpy due to scattered and elevated cryptostomata. However, reports on its culture are non-existent. Join ResearchGate to find the people and research you need to help your work. Vol. Issue permits in the taking of the young of certain species of fish known as ipon and other species for the protection of fry fish eggs. Main axis terete, smooth, up to 2.5 mm in diameter; percurrent. La Jolla: California Sea Grant College. a. Drugs 14:81, Steen H, Scrosati R (2004) Intraspecific competition in Fucus serratus and F. evanescens (Phaeophyceae: Fucales) germlings: effects of settlement density, nutrient concentration, and temperature. Jap J Phycol (Sorui) 42:53–61, Largo DB, Rance GMS, Diola AG, Amper JA (2020) Method for the mass production of seedlings of the tropical brown seaweed Sargassum (Phaeophyceae, Ochrophyta). S. baccularia was clearly separated out from S. polycystum and S. stolonifolium using primer OPA13. Danilo B. Largo. Although water temperature, pH and salinity values were relatively constant, slight variations of temperature were positively correlated (P = 0.05) with subtidal biomass. Photographs of cross-sections were made using. characteristically toothed and compressed and/or flat towards the tip. mariculture of seaweed resources of the Philippines. This proposition was supported by Phillips (1995), who, suggested more detailed work on the other, The first major taxonomic treatment of the genus, study on the taxa by Modelo and Umezaki (1995) based on the, deposited in various herbaria in the country and elsewhere in the world, 20 species, others (1987) were confirmed. p 3-7. Maximum growth was achieved after 6 months, reaching a mean length of 42.8 ± 30.9 cm (max recorded was 1 m), some cultivars starting to show signs of senescence. unidentified and are described here in detail. Cultivars developed more branches after 4 months, at the same time producing receptacles. a. Rome, p 120, Fletcher RL (1995) Epiphytism and fouling in Gracilaria cultivation: an overview. Secondary, branches smooth, slightly compressed up to 20 cm long; almost always arising, from the primary branches in an alternate manner, those associated with receptacles smaller; margins finely serrate-dentate; apex, duplicated leaves (l) and female receptacles (r) closely associated with leaves and. Sargassum gracillimum Reinbold. Biodiversity of benthic marine algae of the Philippines, Culture of the brown seaweed Sargassum siliquosum J. Agardh (Phaeophyceae, Ochrophyta): from hatchery to out-planting, Seaweed biomass of the Philippines: Sustainable feedstock for biogas production, A historical account of biodiversity studies on Philippine seaweeds (1800-1999), Seasonality of standing crop of a Sargassum (Fucales, Phaeophyta) bed in Bolinao, Pangasinan, Philippines, Nineteenth International Seaweed Symposium, Catalogue of the benthic marine algae of the Indian Ocean, Field Guide and Atlas of the Seaweed Resources of the Philippines, Taxonomy of Economic Seaweeds, with Reference to Pacific and Caribbean Species, The Genus Sargassum (Phaeophyta, Sargassaceae) from Balibago, Calatagan, Philippines, Taxonomic revision and geographic distribution of the subgenus sargassum (FUCALES, PHAEOPHYCEAE) in the western and central pacific islands based on morphological and molecular analyses, Systematic studies in the Scytosiphonaceae (Ectocarpales, Phaeophyceae), Our new project is on the development of a culture technique for local Sargassum species in southern Philippines. Collections were made by the authors (WJES and. Mar. III. MethodsX 7, Liang Z, Sun X, Wang F, Wang W, Liu F (2014) Study on the sporeling rearing of Sargassum thunbergii. They can also include algal beds of Sargassum or other seaweeds interspersed in the shallow reef flats. Eight species of Sargassum: S. baccularia (Mertens) C. Agardh, S. cinctum J. Agardh, S. crassifolium J. Agardh, S. ilicifolium (Turner) C. Agardh, S.notarisii Zanardini, S. oligocystum Montagne, S.paniculatum J. Agardh, and S. siliquosum J. Agardh are reported from Balibago, Calatagan, Philippines. Marta, Colombia, Kim JK, Yarish C, Hwang EK, Park M, Kim Y (2017) Seaweed aquaculture: cultivation technologies, challenges and its ecosystem services. Plant up to 26 cm long; holdfast incomplete perhaps due to damage from collection. is due to morphological plasticity. Biol. This study describes the culture of S. siliquosum from land-based hatchery to out-planting in the open sea. seagrant.umaine.edu/extension/korea-aquaculture Accessed 7 Jan 2017, Santiañez WJE, Trono GC Jr (2013) Taxonomy of the genus Sargassum (Fucales, Phaeophyceae) from Alabat Island, Quezon, Northeastern Philippines. Ajisaka and others (1999) reported, muricate branches but is discriminated from the latter due to the absence of rhizoidal. p 23–41. is recommended to avoid the adverse impacts of harvesting on natural stocks. ... mussels, and snails are economically important and abundant in seagrasses. The Philippine Journal of Science Special Issue: The compound has a wide range of food production applications such as emulsifying, stabilizing, gelling and thickening agent (P, also used in paint, textile, paper and plastic manufacturing industries (e.g. Plant up to 18 cm long, holdfast lacking perhaps due to damage from collection. were discriminated using morphological characters such as the type of holdfast, shape and nature of their branches, vesicles, leaves, nature and distribution of, plant, free-hand cross-sections of the receptacles were made under the, on glass slides using corn syrup. J Appl Phycol 24:707–714, Zhao ZG, Zhao FJ, Yao JT, Lu JM, Ang POJ, Duan DL (2008) Early development of germlings of Sargassum thunbergii (Fucales, Phaeophyta) under laboratory conditions. Sargassum is abundant in the ocean. The new section Polycystae Mattio et Payri is described to fit species of the subgenus Sargassum with stolon-like branches. Habit; b. The two other remaining materials were, species are conspicuous marine macrobenthic floral elements that form, are also well known for their economically, by coastal populations which include 1) as a cover, resources of the Philippines are among the poorly known and least, were already conducted in other parts of the country prior to those, specimens collected in Alabat Island, Quezon, in the area) form the basis of this report. Most mentioned species listed above occur on the coasts of Indonesia, Malaysia, Singapore, Vietnam and the Philippines, fewer species have been recorded from Burma (Myanmar), Thailand and Papua New Guinea. Portion of the branch showing duplicated leaves (l) and female receptacles (r) closely associated with leaves and vesicles; c. Cross-section of female receptacle showing oogonium (arrow); d. Leaves from different branch orders, one showing duplicated tips (arrows). Google Scholar, Mazarrasa I, Olsen YS, Mayol E, Marbà N, Duarte CM (2014) Global unbalance in seaweed production, research effort and biotechnology markets. Sargassum is a genus of brown (class Phaeophyceae) macroalgae in the order Fucales.Numerous species are distributed throughout the temperate and tropical oceans of the world, where they generally inhabit shallow water and coral reefs, and the genus is widely known for its planktonic (free-floating) species. This species is widely distributed in the Philippine shorelines. Mar Biol 144:61–70, Tantengco GOA, Limbo AC, Montaño EMN, Jacinto DS (2015) Cytotoxic activity of crude extract and fractions from Sargassum siliquosum (JG Agardh) and other seaweeds against selected human cancer cell lines. Philipp J Crop Sci 40:1–11, Valentina J, Poonguzhali TV, Nisha LLJL (2015) Mosquito larvicidal and pupicidal activity of seaweed extracts against Aedes aegypti, Anopheles stephensi and Culex quinquefasciatus. Modelo RB, Umezaki I. Sargassum is a species of brown algae. the blade; base symmetrical to slightly asymmetrical; midrib apparent, disappearing, towards the tip; cryptostomata numerous, scattered; leaves of higher order branches, absent; pedicels terete near base becoming flattened towards the tip, sometimes. By the 1980s S. micracanthum and S. okamurae, temperate Sargassum species, dominated in Tosa Bay, but in the 1990s the distribution of these two species became Mar Pollut Bull 122:272–281, Wang Z-F, Liu J-G (2007) The sexual reproduction of Sargassum thunbergii and its application in seedling breeding. ANG,JR.2 Marine Sciences Center, University of the Philippines, Diliman, Quezon City, Philippines (Received 19 November 1984; revision received 30 May 1985; accepted 3 June 1985) … reproductive plants was accounted for in all species in both zones. Primer OPA13 was found to be good for, Three species of Sargassum (S. carpophyllum, S. ilicifolium and S. siliquosum were collected each month for a period of one year from the inter- and subtidal zones of Pangil, Currimao, Ilocos Norte, The Philippines. These “berries” are actually gas-filled structures, called pneumatocysts, which are … The farming of Sargassum, should also be studied by research institutions like Western Philippines University (WPU) with BFAR to minimize gathering in the wild, he added. Based on the biomass and functional-form composition of seaweeds, we concluded that Nachido Island provides better environmental conditions than does Odo Island. Google Scholar, Brawley SH, Johnson LE (1991) Survival of fucoid embryos in the intertidal zone depends upon developmental stage and microhabitat. Habit; b. Phycologia 58:484–495, Johnson DR, Ko DS, Franks JS, Moreno P, Sanchez-Rubio G (2012) The Sargassum invasion of the eastern Caribbean and dynamics of the equatorial north Atlantic. branches arranged almost always alternately along the primary branches, characteristically decreasing in length towards the tip, giving a pine-tree-like, appearance to the thallus; cryptostomata apparent, elevated, giving branches a lumpy, up to 27 mm long, 6 mm wide; base asymmetrical, highly oblique at the adaxial, portion giving the appearance of long-stalked leaves; margin serrate-dentate; apex, acuminate or obtuse; midrib apparent, disappearing towards the tip, evanescent in, narrow leaves; cryptostomata numerous, scattered, with a tendency to be arranged. Algae 32:1–13, Kok JML, Jee JM, Chew LY, Wong CL (2016) The potential of the brown seaweed Sargassum polycystum against acne vulgaris.