UNIHI-SEAGRANT-BB-90-04 .. .( , , _ R,@�emaryAmide i . - · · , · Cpmmunication�, Coordinafor· \ ,.... .:.r /. '.; ' ' ·, 11 • t • \ I .- '' ' r - ; ' • • 1 I I Sea Grant is� unique Bar:tne�shipi:Jf' pu 91ic �n9 pFivaJf§�ctq���, coiritiiningre��arGh, ed�catitm� : and technology· transfer,for•puolic service,. It is a national net,work_·of univ..ersities·ineeting , . changing enyironrnental'anct ·econotnie'n,e·eM' of feople 'iQ our coastal,· ocean,,- - .-� and' /Grea(L ,. illi:es. • " , 1- ',.I r�gibn��' · · , . : -,·' • .(. • · �ubllshed by the;,California 1�ea dr��t ��llege,.UNv�r.s:ty,of �aiif9mi�, L� �.©ni, �a�ifmin\�, . - 1994,,Publication'No: T-CS9CP-0�1. AdditionaJ copie's· are.,alajlable' for.$1!} (U.SJ each,,. m !6. , ·, prep�d �check money·o'r��r p�yable ''Uf:�egent� ; ).from: CaliforniaSea Grru-;tCdllege ,· (6� .. University of 'Caljfornl'a, �500·GilmitnDrive, 1'.aJona: CA "9�09J!023z.' 9) 5�4��1444:.� , .. .·, . " .... ·.: ,/-.,-··� .1.::.,. " ..... :,,' ( :1 ' • • . ..·",_ ", ,- " "' -'J '_ This worR is funded in. _part by a grant from the National �e'mGrailt Coll�ge·Progr,arp1 National .. ::. , ·Oceanic· �n� Atm'ospµeriC Admini'stmtioi},, U.S'.. Department; of; Comll)er�e�· m1der ·grant · th'e i;iumber Nrt89AJ\-P-�01.38, projed nun;iber A/P.J, a�a' in. -part ,by Galifot]!a State. _ are • Resour.ces Agency'. Tlie views expressed herein thbse. e.'fthe authors· and do1i10tnet:essaijiy · ·' the re':filect vi�ws o.f NC>A:A,;�{(lp.y of its, s'uoagencies" .The U.S. G0verrirnends authorized to\ - . · � •;'--.. · .-. " '', 1,. p�odu�e,and di triJ?tite repFil)�s. for.go�ern��ntal puTp�ses,. .. ,...-... "\;, � �:�' - '• I 1 · (ol, p : JJ-u� 'b lish'ed on;recycled " . pa er ', \ ) f !. 1 I, • ' .'' . �ubli��tion:· February, 1994 '•i I )- ) ?. " ·11} �I TAXONOMY OF ECONOMIC SEAWEEDS With reference to some Pacific species Volume IV Isabella A. Abbott, Editor Results of an international workshop sponsored by the California Sea Grant College in cooperation with the Pacific Sea Grant College Programs of Alaska, Hawaii, Oregon, and Washington and hosted by Hokkaido University, Sapporo, Japan, July 1991. A Publication of the California Sea Grant College Report No. T-CSGCP-031 UNIVERSITY OF HAWAII AT MANCA SEA GRANT COLLEGE PROGRAM 2525 CORREA ROAD, HIG 238 HONOLULU, HAWAII 96822 UNIHl-SEAGRANT-BB-90-04 Table of Contents Preface James J. Sullivan.. ................................................................................. vii Introduction Isabella A. Abbott . .... ... .... .... ... .... .. .... ... ... ..... .. ..... ..... .... .. .. ix Acknowledgments......................................................................................... xiii Participants . .. .. .. .. xv Notes .............................................................................................................. xvii Section I. Sargassum Species Introduction Isabella A. Abbott ............... ........................... ........................................... 1 New Species of Sargassum from the Philippines Gavina C. Trono, Jr.. .... ...... .... ..... ..... .... ... .... .... ......... .... ..... ........... ... ... 3 Several Sargassum Species (Subgenus Sargassum) in East Asia with Furcately Branching Leaves Te tsuro Ajisaka, Ta dahide Noro, Gavina C. Trono, Jr., Young-Meng Chiang and Ta dao Yoshida ...................................................................... 9 Species of Sargassum Subgenus Sargassum (Fucales) with Compressed Primary Branches Tadahide Noro, Tetsuro Ajisakaand Ta dao Yoshida ................ ............. 23 A Tentative Identification of Some Specimens of Sargassum from the Tropical South Pacific Tadahide Noro and Isabella A. Abbott ........... ......... ................................ 33 iii Section II. Japanese Species of Gelidium Introduction Bernabe Santelices ......................................................................... ....... 35 A Reassessment of the Taxonomic Status of Gelidium amansii (Lamouroux) Lamouroux Bernabe Santelices ................ .......................................... ............. ......... 37 Observations on Gelidium pacificum Okamura BernabeSantelices and Masahiko Miyata.... ................... ........... ... ........ 55 Some Species of Gelidium (Gelidiales, Rhodophyta) from Korea Hae-Bok Lee ........................................................................................... 67 Section Ill. Graci/aria Introduction IsabellaA. Abbott ................................................................................... 81 Graci/aria dawsoniisp. nov. (Rhodophyta, Gigartinales): A Second Flattened Species from the Hawaiian Islands Mitchell D. Hoyle........ ............................................................................. 85 Two New Species of Graci/ariafro m the Philippines Hirotoshi Yamamoto and Gavina C. Trono, Jr. ...... .................. .............. 95 Three Foliose Species of Graci/aria from China Zhang Junfu(C.F. Chang) and Xia Bangmei ........ ... .......................... ... 103 New Records and Reassessment of Gracilaria (Rhodophyta) from the a Philippines IsabellaA. Abbott ................................................................................. 111 Occurrence of a Different Graci/aria in Japan Anong Chirapart, Masao Ohno and Hirotoshi Yamamoto ..................... 1 19 Some Species of Graci/aria from Peninsular Malaysia and Singapore Siew-Moi Phang .......... ......................................................................... 125 The Species of Graci/aria from Thailand KhanjanapajLewmanomont ........... ...................................................... 135 iv Section IV. Ahnfeltiopsis (Rhodophyta, Phyllophoraceae) Introduction Michio Masuda and Richard E. Norris ................... ................... ............ 149 Ahnfeltiopsis from the Western Pacific: Key, Description, and Distribution of the Species MichioMasuda, Zhang Junfu, and Xia Bangmei .................... ...... ........ 159 Hawaiian Phyllophoraceae RichardE. Norris .................................................................................. 185 v Preface James J. Sullivan Director, California Sea Grant College California Sea Grant first sponsored an international conference on the taxonomy of economically important seaweeds of the Pacific in 1984. The meeting was hosted by the University of Guam and arose out of an observation made to me by Roy Tsuda of that university. His point was that there would not be appreciable progress in seaweed aquaculture or marine natural products chemistry in the Pacific until the taxonomy of commercially interesting species was better understood. California Sea Grant funded the first meeting in cooperation with the other Pacific Sea Grant programs with the aim of meeting a particular need and with no notion of initiating a continuing series of meetings. In retrospect, this was naive given the enormous ignorance that prevails about warm-water Pacific algae. We subsequently received so much positive feedback from the worldwide scientific community concerning the great need for this work that the Guam meeting evolved into a recurring series of meetings, held in 1986, 1989, 1991 , and, most recently, in Honolulu, Hawaii in July 1993. As Dr. Abbott indicates in this volume, the progress made at these workshops has been substantial, and we are pleased to have played a role in bringing together an international community of presti­ gious systematists to address this important problem. vii Introduction Isabella A. Abbott, Workshop Convener and Editor Looking back over the past four workshops, I find that each offered something new. The first workshop on some of the economically importantalga e of the Pacific (and to a lesser extent, the Western Atlantic) was sponsored by the California Sea Grant College in cooperation with the other Pacific Sea Grant College Programs and hosted by the University of Guam in 1984. This, of course, was our prototype meeting, and we were all gratified to find out how enthusiastically 14 participants representing five nations would share their systematics problems and knowledge with others equally interested. These first participants demonstrated that a work­ shop divided into four or five groups of specialists had many pluses in its favor over a symposium or seminar format. But at the time we dared not dream that this single workshop would evolve into a series, held on average every second year at some new location in the Pacific Rim. But continue it did, and in the second workshop, held at the Institute of Ocean­ ology in Qingdao, China, in 1986, a Laurencia group of specialists was added to existing groups on Sargassum, Graci/aria and Polycavernosa, Gefidium and Pterocladia, and Eucheuma. At this workshop, Laurencia species from Hawaii, of which there are many, were studied along with those of China, which had previ­ ously been surveyed. (By contrast, Japanese species are well studied). Dr. Karla McDermid used photographs to illustrate on Hawaiian species the features applied by Yuzuru Saito to Japanese and Australian species. The photographs that McDermid used to illustrate projecting cell walls along the radius of the cell, lenticular thickening, and secondary pit connections in the outer cortical cells did indeed look more "real" than did the excellent drawings of Saito. After all, photog­ raphy presents a kind of reality that is more in keeping with modern ways of communicating scientific information. But photography does not substitute for the knowledge gained from the painstaking microscopic examinations