ARTIFICIAL SPAWNING SUBSTRATE FUNCTIONING AS SPAWNING GROUND FOR FISHES AND METHOD FOR INSTALLING ARTIFICIAL SPAWNING SUBSTRATE
ITO TAKUYA, HASE KAZUYA, KITAHARA SHIGESHI, MURAKAMI TOSHIYA, YANO KENJI, TSUBOTA YUKIO, NAKAYAMA SATOYUKI, TSUMURA KEN, TSUNODA HIROYOSHI, NAGATA SHINICHIRO
Year of Publication 20.08.2002
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Year of Publication 20.08.2002
Patent