CAJ | 학술논문

采用野外实地调查、常规生物学测定、连续观察等方法对近江蛏（Sinonovacula rivularis sp．nov．）外部形态、胚胎、幼虫和稚贝发育进行了初步研究．结果表明，近江蛏的贝壳形态与缢蛏（Sinonovaculaconstricta）相似，壳长与壳高之比值较缢蛏大，成体近江蛏（壳长60mm以上）壳长与壳高之比平均为3．43±O．13，成体缢蛏（壳长60mm以上）为3．16±0．12；近江蛏壳长（L）与壳高（H）的关系为：H=0．2691L＋1．6053（n=325），相关系数为0．9964；近江蛏繁殖期为10-11月，其胚胎、幼虫和稚贝发育过程与缢蛏基本相同．
채용야외실지조사、상규생물학측정、련속관찰등방법대근강정（Sinonovacula rivularis sp．nov．）외부형태、배태、유충화치패발육진행료초보연구．결과표명，근강정적패각형태여액정（Sinonovaculaconstricta）상사，각장여각고지비치교액정대，성체근강정（각장60mm이상）각장여각고지비평균위3．43±O．13，성체액정（각장60mm이상）위3．16±0．12；근강정각장（L）여각고（H）적관계위：H=0．2691L＋1．6053（n=325），상관계수위0．9964；근강정번식기위10-11월，기배태、유충화치패발육과정여액정기본상동．
The preliminary studies on the external morphology and the growth of the embryo, larva and juvenile mollusk of Sinonovacula rivularis sp. nov. were carried out using methods such as field survey, conventional biological test and continuous observation. The result showed that Sinonovacula rivularis sp. nov. had a similar morphology to Sinonovacula constricta and ratio of shell length to shell height of Sinonovacula rivularis sp. nov. was larger than that of Sinonovacula constricta. The ratio of shell length to shell height of adult Sinonovacula rivularis sp. nov. (of shell length greater than 60mm) was 3.43 ±0. 13 in average, while for the adult Sinonovacula constricta (of shell length greater than 60mm), the ratio was 3. 16 + 0. 12. The relationship between the shell length and the shell height of Sinonovacula rivularis sp. nov. was: H = 0. 2691 L + 1. 6053 (n = 325) , and the correlation coeffcient was 0. 9964. The breeding season for Sinonovacula rivuhtr/s sp. nov. was from October to November, and the growth process of embryo, larva and juvenile mollusk of Sinonovacula rivularis sp. nov. were basically the same as that of Sinonovacula constricta.