ARTIFICIAL SPAWNING SUBSTRATE FUNCTIONING AS SPAWNING GROUND FOR FISHES AND METHOD FOR INSTALLING ARTIFICIAL SPAWNING SUBSTRATE

PROBLEM TO BE SOLVED: To solve such problems that conventional spawning of fishes including Arctoscopus japonicus has extremely strong selectivity with few examples of spawning on artificial materials and the amount of thick growing of natural seaweeds has a great yearly fluctuation to resultantly g...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	ITO TAKUYA, HASE KAZUYA, KITAHARA SHIGESHI, MURAKAMI TOSHIYA, YANO KENJI, TSUBOTA YUKIO, NAKAYAMA SATOYUKI, TSUMURA KEN, TSUNODA HIROYOSHI, NAGATA SHINICHIRO
Format:	Patent
Sprache:	eng
Schlagworte:	AGRICULTURE ANIMAL HUSBANDRY CARE OF BIRDS, FISHES, INSECTS FISHING FORESTRY HUMAN NECESSITIES HUNTING NEW BREEDS OF ANIMALS REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR TRAPPING
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