피조개, Scapharca broughtonii 부착치패의 중간양성시 보호망 형태와 유실방지망 종류에 따른 성장과 생존 (Growth and Survival of the Spat of Arkshell, Scapharca broughtonii in Intermediate Culture with Different Shape of Protective Net and Type of Preventive Net of Spat Loss)

서지정보

· 발행기관 : 한국패류학회
· 수록지 정보 : The Korean Journal of Malacology / 24권 / 2호 / 131 ~ 136페이지
· 저자명 : 김병학, 신윤경, 박기열, 최낙중, 오봉세, 민병희

초록

Growth and survival of the spat of arkshell, Scapharca broughtonii were investigated for the improvement of
survival in intermediate culture with different shape of protective net and type of preventive net of spat loss. The
growth performance of the spat of arkshell was observed for 60 days by using different forms of protective net, as
the exposure form with an average shell length of 12.8±3.2 ㎜ (P<0.05), the fish pot form with 12.2±3.5 ㎜, the
cylinder form with 11.9±3.8 ㎜ and the last one is the rectangular form with 10.9±3.7 ㎜. Their numerical value did
not show any marked difference with each other. But in case of survival rate, the fish pot form showed highest
survival rate which is 43.7% and the significantly lowest was showed by the exposure form, which is 5.4%
(P<0.05). The cylinder form and rectangular form showed 41.2 and 31.6% respectively.
And then the growth of the spat of arkshell was observed for 163 days by rearing in a sort of preventive net, the
first group was in a blackout curtain with average shell length of 13.9±3.1 ㎜, the next group was in a balsam pear
net with 12.9±3.0 ㎜, in a polyethylene net with 11.8±3.1 ㎜ and the control with 12.6±3.3 ㎜ which was not
installed by preventive net of spat loss. The survival rate was 91.5% in a blackout curtain, 90.1% in a polyethylene
net, 88.5% in a balsam pear net and 61.5% in a controlled group. It is seen that the highest growth and survival
rate were observed in a fish pot form and cylinder form. These results were a little bit difference from those of the
spat of arkshell cultured in the form of different preventive nets. There was no significant difference in survival rate
in relation to the sorts of preventive net against carrying-away, but there was a difference in survival rate by more
than 30% as against the non-installed controlled group.
We expect that survival rate would be highly improved in intermediate culture carried out with fish pot form and
cylinder form of protective net and preventive net of spat loss.

영어초록

Growth and survival of the spat of arkshell, Scapharca broughtonii were investigated for the improvement of
survival in intermediate culture with different shape of protective net and type of preventive net of spat loss. The
growth performance of the spat of arkshell was observed for 60 days by using different forms of protective net, as
the exposure form with an average shell length of 12.8±3.2 ㎜ (P<0.05), the fish pot form with 12.2±3.5 ㎜, the
cylinder form with 11.9±3.8 ㎜ and the last one is the rectangular form with 10.9±3.7 ㎜. Their numerical value did
not show any marked difference with each other. But in case of survival rate, the fish pot form showed highest
survival rate which is 43.7% and the significantly lowest was showed by the exposure form, which is 5.4%
(P<0.05). The cylinder form and rectangular form showed 41.2 and 31.6% respectively.
And then the growth of the spat of arkshell was observed for 163 days by rearing in a sort of preventive net, the
first group was in a blackout curtain with average shell length of 13.9±3.1 ㎜, the next group was in a balsam pear
net with 12.9±3.0 ㎜, in a polyethylene net with 11.8±3.1 ㎜ and the control with 12.6±3.3 ㎜ which was not
installed by preventive net of spat loss. The survival rate was 91.5% in a blackout curtain, 90.1% in a polyethylene
net, 88.5% in a balsam pear net and 61.5% in a controlled group. It is seen that the highest growth and survival
rate were observed in a fish pot form and cylinder form. These results were a little bit difference from those of the
spat of arkshell cultured in the form of different preventive nets. There was no significant difference in survival rate
in relation to the sorts of preventive net against carrying-away, but there was a difference in survival rate by more
than 30% as against the non-installed controlled group.
We expect that survival rate would be highly improved in intermediate culture carried out with fish pot form and
cylinder form of protective net and preventive net of spat loss.

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