an annotated-art.9 An Annotated Checklist of Macrobenthic Algae 67Science Diliman (July - December 2000) 12:2, 67-74 ABSTRACT INTRODUCTION Records of the marine algae and its taxonomic studies for the entire Western Coast of Zamboanga City are scanty. The latest treatise that compiles the reported seaweeds from the Philippines prior to 1987 is the work of Silva et al. (1987) who catalogued 911 species, including those found in Zamboanga waters. The earliest account of marine algae collected from this area is probably that of Goerg von Martens in 1868, during the Preussiche Expedition, followed by the British Challenger Expedition in 1874-1875 and the Dutch Siboga Expedition in 1899. Subsequent reports that include seaweeds from Zamboanga were published by Velasquez (1955), Taylor (1966), Cordero (1980), and Trono et al. (1983). The most recent collections done An Annotated Checklist of Macrobenthic Algae of the Western Coast of Zamboanga City (Mindanao, Philippines) O. Tito*, C. Sescon*, C. Adalla*, J. Asdani, E. M. Basilio, A. Climaco, A. Dagalea, M. Luna, Y. Uddin, and R. A. Vega Marine Biology Department Zamboanga State College of Marine Sciences and Technology Seaweed collections were made at several sites along the western coast of Zamboanga City from July to August 1999. Ninety-four (94) taxa were identified. These represent the three (3) major algal divisions broken down into fifteen (15) orders, twenty-six (26) families and forty-four (44) genera. Six species: Botryocladia leptopoda (J. Agardh) Kylin, Halimeda distorta (Yamada) Colinvaux, Halimeda melanesica Valet, Kallymenia perforata J. Agardh, Sarconema filiforme (Sonder) Kylin and Solieria robusta (Greville) Kylin, and the genus Sarconema Zanardini represent new records for Zamboanga and the Philippines. All specimens are deposited in the Zamboanga State College of Marine Sciences and Technology Herbarium. Keywords: checklist, seaweed species, new records, Zamboanga by Japanese and Filipino scientists in 1988 resulted in a list of species published by Umezaki in 1989. However, some of these reports documented in Zamboanga do not mention the specific locality of the area except those made in Santa Cruz Islands, Sacol Island, and the Calarian areas. The main purpose of this study is to identify the different macrobenthic algae growing along the littoral zones of the western coast of Zamboanga City. MATERIALS AND METHODS Seaweeds were collected from littoral areas (10 sites). Stations 1 to 6 were located from the southeastern portion of Zamboanga City. These areas were partially protected from strong waves and currents. Stations 4 and 5 were situated near the river mouth and * Corresponding authors Tito et al. 68 characterized by heavy siltation resulting from run-off waters due to heavy rains. Stations 7 to 10 were narrow reef flats facing the Sulu-Celebes Sea, and were exposed to strong waves and winds. Snorkeling and wading on the reef flats were done to collect the specimens. Topographical and oceanographic data and other relevant information were recorded. Collection and preservation procedures were adopted and modified from Abbott et al. (1976), Lewmanomont & Ogawa (1995), and Ganzon-Fortes (1991). Collected specimens were initially sorted out on the beach before being transported to the ZSCMST laboratory for identification and preservation. Materials were pressed and dried, following the methods described by Ganzon-Fortes (1991), Tito (1999), and by Dr. Max H. Hommersand and Dr. Laurence M. Liao (pers. comm.). Some specimens were preserved in clear glass bottle with 5% formalin-seawater solution. Microscopic examination of samples was done by sectioning the materials using freehand method. Samples were identified on the basis of external and internal morphological features using reliable taxonomic keys like those of Magruder & Hunt (1979), Calumpong & Meñez (1997), & Trono (1997). RESULTS AND DISCUSSION A total of ninety-four (94) species of marine macrobenthic algae were collected and identified. These represent the three major algal divisions (Rhodophyta, Phaeophyta, and Chlorophyta). These are broken down into 15 orders, 26 families, and 44 genera. Of these, six species, namely, Botryocladia leptopoda, Kallymenia perforata, Sarconema filiforme, and Soliera robusta (Greville) for Rhodophyta, Halimeda melanesica and Halimeda distorta for Chlorophyta, and one genus, Sarconema Zanardini (a red alga), represent new records for the area and the Philippines. The list of all the taxa included in this study is presented below following the classification scheme of Silva, et al. (1996): DIVISION RHODOPHYTA Number of Orders: 8 Number of Families: 12 Number of Genera: 21 Number of Species: 42 ORDER NEMALIALES FAMILY GALAXAURACEAE Actinotrichia Decaisne Actinotrichia fragilis (Forsskaal) Boergesen Specimen examined: MB-154. Galaxaura Lamouroux Galaxaura apiculata Kjellman Specimen examined: MB-044a. Galaxaura arborea Kjellman Specimens examined: MB-044, MB-079, MB-221. Galaxaura fasciculata Kjellman Specimen examined: MB-079a. Tricleocarpa Huisman & Borowitzka Tricleocarpa cylindrica (Ellis & Sol.) Huisman & Borowitzka Specimens examined: MB-045, MB-078, MB-125, MB-148, MB-183, MB-217, MB-230, MB-238. Tricleocarpa fragilis (Linnaeus) Huisman & Townsend Specimens examined: MB-046, MB-080. ORDER GELIDIALES FAMILY GELIDIACEAE Gelidium Lamouroux Gelidiella acerosa (Forsskaal) Feldmann & Hamel Specimen examined: MB-177. An Annotated Checklist of Macrobenthic Algae 69 ORDER GRACILARIALES FAMILY GRACILARIACEAE Gracilaria Greville Gracilaria arcuata Zanardini Specimen examined: MB- 073a. Gracilaria debilis (Forsskaal) Boergesen Specimen examined: MB-127, MB-149, MB-184, MB-213. Gracilaria edulis (S.G. Gmelin) Silva Specimens examined: MB-050, MB-071, MB-128, MB-144. Gracilaria eucheumoides Harvey Specimens examined: MB-051, MB-073, MB-129. Gracilaria salicornia (C. Agardh) Dawson Specimens examined: MB-119, MB-153. Gracilaria textorii (Suringar) De Toni Specimen examined: MB-035. ORDER CRYPTONEMIALES FAMILY HALYMENIACEAE Halymenia C. Agardh Halymenia dilatata Zanardini Specimen examined: MB-041, MB-081, MB-122, MB-176. Halymenia durvillaei Bory de Saint -Vincent Specimens examined: MB-047, MB-077, MB-124, MB-187. Halymenia maculata J. Agardh Specimens examined: MB-039, MB-083, MB-145, MB-214. FAMILY KALLYMENIACEAE Kallymenia J. Agardh Kallymenia perforata J. Agardh Specimens examined: MB-042, MB-175. ORDER CORALLINALES FAMILY CORALLINACEAE Amphiroa Lamouroux Amphiroa fragilissima (Linnaeus) Lamouroux Specimens examined: MB-246. Amphiroa rigida Lamouroux Specimens examined: MB-043, MB-115, MB-229. Amphiroa foliacea Lamouroux Specimen examined: MB-252. ORDER GIGARTINALES FAMILY HYPNEACEAE Hypnea Lamouroux Hypnea boergesenii Tanaka Specimens examined: MB-123, MB-152. Hypnea charoides Sonder Specimens examined: MB-049, MB-076, MB-205. Hypnea cervicornis J. Agardh Specimens examined: MB-178, MB-215. Hypnea divaricata (C. Agardh) Greville Specimens examined: MB-048, MB-219. Hypnea spinella (C. Agardh) Kuetzing Specimens examined: MB-074, MB-126, MB-147, MB-186. Hypnea pannosa J.Agardh Specimen examined: MB-123a. FAMILY SOLIERIACEAE Kappaphycus Doty Kappaphycus alvarezii (Doty) Doty ex Silva Specimens examined: MB-047, MB-077, MB-124, MB-187. Kappaphycus cottonii (Weber van-Bosse) Doty ex Silva Specimen examined: MB-052. Kappaphycus striatum (Schmitz) Doty ex Silva Specimen examined: MB-040. Tito et al. 70 Sarconema Zanardini Sarconema filiforme (Sonder) Kylin Specimen examined: MB-072. Solieria J. Agardh Solieria robusta (Greville) Kylin Specimen examined: MB-037. ORDER RHODYMENIALES FAMILY CHAMPIACEAE Champia Desvaux Champia parvula (C. Agardh) Harvey Specimen examined: MB-038. FAMILY RHODYMENIACEAE Botryocladia (J. Agardh) Kylin Botryocladia leptopoda (J. Agardh) Kylin Specimens examined: MB-036, MB-116, MB-181, MB-218. Ceratodictyon Zanardini Ceratodictyon spongiosum Zanardini Specimen examined: MB-146. ORDER CERAMIALES FAMILY DASYACEAE Dictyurus Bory de Saint- Vincent Dictyurus occidentalis J. Agardh Specimen examined: MB-180. Vanvoorstia Harvey Vanvoorstia spectabilis Harvey Specimen examined: MB-118. FAMILY RHODOMELACEAE Acanthopora Lamouroux Acanthopora muscoides (Linnaeus) Bory de Saint-Vincent Specimens examined: MB-1311, MB-085, MB-150. Acanthopora spicifera (Vahl) Boergesen Specimens examined: MB-082, MB-121, MB-151, MB-182. Chondria C. Agardh Chondria armata (Kuetzing) Okamura Specimen examined: MB-032. Laurencia Lamouroux Laurencia cartilagenea Yamada Specimen examined: MB-034. Laurencia papillosa (C. Agardh) Greville Specimen examined: MB-034a. Melanamansia R.E. Norris Melanamansia glomerata (C. Agardh) Norris Specimen examined: MB-117. DIVISION PHAEOPHYTA Number of Orders: 3 Number of Families: 4 Number of Genera: 8 Number of Species: 15 ORDER DICTYOTALES FAMILY DICTYOTACEAE Dictyota Lamouroux Dictyota cervicornis Kuetzing Specimens examined: MB-024, MB-207. Dictyota dichotoma (Hudson) Lamouroux Specimens examined: MB-025, MB-107, MB-141, MB-174. An Annotated Checklist of Macrobenthic Algae 71 Dictyota friabilis Setchell Specimen examined: MB-023. Dictyota mertensii (Martius) Kuetzing Specimen examined: MB-020. Lobophora J. Agardh Lobophora variegata (Lamouroux) Womersley ex Oliviera Specimens examined: MB-022, MB-108, MB-143, MB-172. Padina Adanson Padina australis Hauck Specimens examined: MB-027, MB-069, MB-113, MB-142. Padina tetrastromatica Segawa Specimen examined: MB-066. Spatoglossum Kuetzing Spatoglossum pacificum Yendo Specimens examined: MB-026, MB-070, MB-206. ORDER SCYTOSIPHONALES FAMILY SCYTOSIPHONACEAE Colpomenia (Endlicher) Derbes and Solier Colpomenia sinuosa (Martens ex Roth) Derbes and Solier Specimen examined: MB-018. ORDER FUCALES FAMILY SARGASSACEAE Sargassum C. Agardh Sargassum crassifolium J. Agardh Specimens examined: MB-030, MB-140. Sargassum cristaefolium C. Agardh Specimens examined: MB-021, MB-109. Sargassum polycystum C. Agardh Specimens examined: MB-018, MB-110. Sargassum oligocystum Montagne Specimens examined: MB-028, MB-067, MB-112, MB-173. Turbinaria Lamouroux Turbinaria ornata (Turner) J. Agardh Specimens examined: MB-029, MB-111. FAMILY CYSTOSERIACEAE Hormophysa Kuetzing Hormophysa cuneiformis (Gmelin) P. Silva Specimen examined: MB-143a. DIVISION CHLOROPHYTA Number of Orders: 4 Number of Families: 10 Number of Genera: 15 Number of Species: 37 ORDER ULVALES FAMILY ULVACEAE Enteromorpha Link Enteromorpha intestinalis (Linnaeus) Van den Hoek Specimens examined: MB-016, MB-058, MB-136, MB-165. Enteromorpha flexuosa (Wulfen) J. Agardh Specimen examined: MB-233. Ulva Linnaeus Ulva lactuca Linnaeus Specimens examined: MB-006, MB-139, MB-162, MB-201. Ulva reticulata Forsskaal Specimens examined: MB-008, MB-089, MB-167, MB-193. Tito et al. 72 ORDER CLADOPHORALES FAMILY CLADOPHORACEAE Chaetomorpha Kuetzing Chaetomorpha crassa (C. Agardh) Kuetzing Specimens examined: MB-001, MB-086, MB-135, MB-166. Chaetomorpha spiralis (Okamura) Specimen examined: MB-235. Cladophora Kuetzing Cladophora vagabunda (Linnaeus) Venden Specimens examined: MB-093, MB-129. FAMILY SIPHONOCLADACEAE Boergesenia J. Feldman Boergesenia forbesii (Harvey) J. Feldmann Specimens examined: MB-005, MB-088, MB-155. Boodlea G. Murray and De Toni Boodlea composita (Harvey) Brand Specimen examined: MB-094. Dictyosphaeria Decaisne ex Endlicher Dictyosphaeria cavernosa (Forsskaal) Boergesen Specimen examined: MB-092. FAMILY VALONIACEAE Valonia C. Agardh Valonia aegagropila C. Agardh Specimens examined: MB-055, MB-104, MB-131. ORDER BRYOPSIDALES FAMILY CAULERPACEAE Caulerpa Lamouroux Caulerpa cupressoides (Vahl) C. Agardh Specimen examined: MB-091. Caulerpa lentillifera J. Agardh var. compacta Trono and Ang Specimen examined: MB-091. Caulerpa peltata Lamouroux Specimens examined: MB-106, MB-156, MB-194, MB-226. Caulerpa racemosa (Forsskaal) J. Agardh Specimens examined: MB-007, MB-065, MB-132, MB-169, MB-190. Caulerpa racemosa (Forsskaal) Agardh var. turbinata (Agardh) Eubank Specimens examined: MB-105, MB-149. Caulerpa serrulata (Forsskaal) J. Agardh Specimen examined: MB-232, MB-242. Caulerpa sertularioides (S. Gmelin) Howe Specimens examined: MB-015, MB-060, MB-100, MB-130, MB-171, MB-202, MB-243, MB-248. Caulerpa taxifolia (Vahl) J. Agardh Specimens examined: MB-222, MB-239. FAMILY CODIACEAE Codium Stackhouse Codium bartlettii Tseng & Gilbert Specimens examined: MB-061, MB-158, MB-204, MB-225, MB-240. Codium divaricatum Tseng & Gilbert Specimen examined: MB-053. Codium edule P. C. Silva Specimens examined: MB-010, MB-224, MB-236. Codium geppii O. Schmidt Specimens examined: MB-188, MB-250. An Annotated Checklist of Macrobenthic Algae 73 FAMILY HALIMEDACEAE Halimeda Lamouroux Halimeda bikiniensis Taylor Specimen examined: MB-056. Halimeda discoidea Decaisne Specimens examined: MB-017, MB-059, MB-101, MB-137, MB-195. Halimeda distorta Decaisne Specimen examined: MB- 013. Halimeda gracilis Harvey ex J. Agardh Specimen examined: MB- 014. Halimeda macroloba Decaisne Specimens examined: MB-002, MB-090, MB-170, MB-191, MB- 244. 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