海底に於けるアサクサノリ糸状体の培養に関する研究

概要

論文の詳細を見る
The present study was carried out to establish an artificial culturing method of the Conchocelis-phase of Porphyra tenera in the sea. 85 oyster-shells (Ostrea denselamellosa) already invaded by the Conchocelis in the apparatus reported by the author (1957), were joined together into a set by passing a steel wire (about 150cm in length) through a hole bored in the center of each shell. In other cases about 5cm bumboo tubes were inserted between the shells in order to separate them. In the latter a set was made up of about 30 shells. These sets were tied at the both ends of the wires to the tared ropes with sinkers stretched from pile to pile on the bottom of the sea. This was done in order to leave a space between neighboring sets, to prevent buried in the bottom sand and also prevent them from being carried away by the waves. The results may be summarised as follows: 1. It was found that by the present method the filamentous thalli of P. tenera show normal development and spore formation from spring to autumn in the sea. 2. It was found that some of the fouling organisms that adhered to the surface of shells in the present method can be easily cleaned away. 3. It is presumed that the formation of the monosporangial branches on the filamentous thalli starts in early June. 4. It is presumed that the liberation of monospores begins about the end of September.
社団法人日本水産学会の論文