干露对日本海神蛤稚贝生长和存活的影响 |
| |
引用本文: | 肖友翔,霍忠明,张学开,范超,李壮,杨凤,闫喜武. 干露对日本海神蛤稚贝生长和存活的影响[J]. 大连海洋大学学报, 2016, 0(5): 482-487. DOI: 10.16535/j.cnki.dlhyxb.2016.05.003 |
| |
作者姓名: | 肖友翔 霍忠明 张学开 范超 李壮 杨凤 闫喜武 |
| |
作者单位: | 大连海洋大学 水产与生命学院,辽宁省贝类良种繁育工程技术研究中心,辽宁 大连116023 |
| |
基金项目: | 国家现代农业产业技术体系建设专项(CARS-48),大连市科技计划项目(2015B11NC073) |
| |
摘 要: | 为研究不同时间和温度下干露对日本海神蛤Panopea japonica稚贝生长和存活的影响,以两种规格(S组壳长为1.70 mm±0.31 mm,L组壳长为5.04 mm±0.63 mm)的日本海神蛤稚贝为材料,在0、10、20℃条件下,分别干露4、8、12 h,测量并统计干露后恢复3、6、9 d时稚贝的存活率和生长情况。结果表明:在相同干露条件下,L组稚贝的抗干露能力显著高于S组(P0.05);在相同干露时间内,稚贝在不同温度下干露的存活率依次为10℃20℃0℃;0℃下S组稚贝干露后恢复6、9 d时的存活率急剧下降,分别为30.22%±6.48%、19.78%±7.70%,与其他各组有显著性差异(P0.05)。研究表明,经干露处理后,S组日本海神蛤稚贝瞬时生长率显著高于其对照组(P0.05),存在补偿生长现象。
|
关 键 词: | 日本海神蛤 干露 生长 存活率 补偿生长 |
Effects of exposure to air on growth and survival of spat geoduck clam Panopea japonica |
| |
Abstract: | In this study, the growth and survival rates were studied in spat geoduck clam Panopea japonica with shell length of 1. 70 mm±0. 31 mm (group S) and 5. 04 mm±0. 63 mm (group L) exposed to air for 4, 8, and 12 h, and recovered in 3, 6 and 9 days at temperatures of 0, 10 and 20℃ to evaluate the effects of exposure and des-iccation on growth and survival of spat geoduck clam. The results showed that there was significantly stronger toler-ance to exposure to air in spats in group S than in group L in same condition ( P<0 . 05 ) . In the same duration of desiccation, however, the order of survival rate at different temperatures was expressed as 10 ℃>20 ℃>0 ℃. The spats exposed to air at 0 ℃ in group S had lower survival rate when they were revered for 6 days ( 30 . 22%±6. 48%) and 9 days (19. 78%±7. 70%), with significantly different from the other groups(P<0. 05). There was higher specific growth rate in spats exposed to air in group L than that in the control group in a certain period in suitable condition, which may be involved in compensatory growth. |
| |
Keywords: | Panopea japonica air exposure growth survival rate compensatory growth |
本文献已被 CNKI 万方数据 等数据库收录! |
|