Dept. of Aquaculture, Pukyong National University, Busan 601-737 KOREA
August 30, 2003
Korean has been long time cultivated seaweeds
especially Porphyra Present cultivated species of Porphyra in Korea is
P. dentata, P. kuniedae, P. pseudolinearis, P. seriata, P. tenera and
P. yezoensis including a hybrid by crossing between two dioecious species,
P. pseudolinearis and P. dentata as a new cultivar. The production
of Porphyra from culture grounds is estimated to be 168,000 tons (wet
wt.) in 2001. Now a good quality of Porphyraproducts is strongly demanded and
consequently provides higher prices for the product.
Otherwise maritime cultivation especially fin
fish casing cultivation has been rapidly developed and it makes serious self
pollution in culture grounds and now newly recognize on that the polyculture
with seaweed will be one of the way for environmentally friendly cultivation
for the future .
In response to the problem, a joint project was
established between Ministry of Maritime Affairs& Fisheries of Korea and
National Oceanic &Atmospheric Administration of US.
The shell conchocelis cultivation was carried
out on two species, CT-23-1(Pophyra leucosticte) and ME-7-6(Pophyra amplissima)
which had been seeding with free-living conchocelis by Dr. Peimin from China.
To our knowledge, the strain ME-7-6 was first attempt for shell culture however,
unfortunately the information on this strain was very rare not only culture
technique but also natural habitat.
Culture tanks were designed about 300L in seawater
capacity with cooling water recycling system for temperature control.
The cultivation was progressed according to basically method of shell culture such as controlling temperature, light intensity, photoperiod and water quality etc.
Culture of conchocelis filaments in shells were processed mainly three steps; 1)shell culture for conchocelis growth 2)shell culture for conchosporangial formation 3)conchospore maturation and the seeding method were designed two ways such as conchospore attaching on net and free-living.
Growth and development of concohocellis were monitored every day in BRVAS and UCONN lab.
Samples were observed with microscope in naturally,
staining with methylen blue and/or decalcified with Perenys solution.
Until late May the conchocelis filaments almost cover the shell surface and
the shell surface changed to bright pink color. From this time conchocelis culture
changed to conchosporangia formation culture and the conchospangium formation
started during late May to early Jun.
Although lot of conchosporangis has been continuously
formed and increased during last Jun to July and August, however, conchospore
is still not matured. On this problem various conditions such as biological,
chemical and physical possibility were considered and tried during these culture
periods and the sporangia is still developing now.
Other activities (Presentations & Society)
BRVAS (Bridgeport Regional Vocational Aquaculture
School) : Introduction on advanced and newly developed seaweed cultivation
in Korea in Mar. 27, 2003
Working group meeting in BRVAS : Introduction on advanced and newly developed seaweed cultivation in Korea in Mar. 30, 2003
NEAS(Northeast Algal Symposium): participation in April 25-27, 2003
PSA(Phycological Society of America):Developments on two newly cultivated species Capsosiphon fulvescens and Costaria costata in Korea in Jun 14-18, 2003
NOAA (National Oceanographic Atmospheric Administration):Advanced seaweed cultivation in Korea in Jun 26, 2003
Future contact information for obtaining F. chinensis broodstocks from Korea
Dr. In Kwon Jang Senior Research Fellow National Fisheries Research & Development Institute (NFRDI)
West Sea Fisheries Research Institute Tel: +82-032-763-4308
Mr. Yeon Jin Kim Manager/owner TaeAn SPF Hatchery Through Dr. Jang
Dr. An Yong Kim Director West Sea Fisheries Research Institute, NFRDI Tel: +82-032-761-3771
Dr. Young-Je Park Division Chief West Sea Fisheries Research Institute, NFRDI Tel: +82-032-764-6632
Dr. Hyon-Sob Han West Sea Fisheries Research Institute, NFRDI
Dr. Yoon Kim Director Aquaculture Department, NFRDI Tel: +82-51-720-2400~2
Dr. Jong Yun Lee Director Biotechnology Division, NFRDI Tel: +82-51-720-2440
Dr. Hyung-Kee Cha Researcher Coastal & Offshore Fisheries Resources Division, NFRDI Tel: +82-051-720-2282
Dr. Jin Yeong Kim Director
Fisheries Scientist Coastal & Offshore Fisheries Resources Division, NFRDI Tel: +82-051-720-2270
Dr. Yong Jin Kang Researcher Aquaculture Division, NFRDI Tel: +82-051-720-2412
Dr. Hea-Young Moon Lee Researcher Aquaculture Division, NFRDI Tel: +82-051-720-2423
Email: firstname.lastname@example.orgDr. Jung-Ha Kang Researcher Genetic Engineering Laboratory, Biotechnology Division, NFRDI Tel: +82-051-720-2451
Dr. Sung Yun Hong Professor Pukyong National University Tel: +82-051-620-6264
Email: email@example.comDr. Sungchul C. Bai Director
Associate Professor Feeds & Nutrition Research Center
Department of Aquaculture
Pukyong National University Tel: +82-051-620-6874
Email: firstname.lastname@example.orgDr. Kyung-Hee Jung Director DMJ Biotech Corp.
DMJ Biotech Research Center Tel: +82-42-862-0365
Email: email@example.comMiss Jin? Reporter Korean Aquaculture Magazine