脉红螺摄食节律的研究  

The feeding rhythm of veined rapa whelk Rapana venosa(Valenciennes,1846)

作　　者：王平川[1] 张立斌[2] 潘洋[2,3] 张涛[2] 李朝霞[1] 班绍君[2,3] 

机构地区：[1]青岛农业大学海洋科学与工程学院,山东青岛266109 [2]中国科学院海洋研究所,海洋生态与环境科学重点实验室,山东青岛266071 [3]中国科学院大学,北京100049

出　　处：《水产学报》2013年第12期1807-1814,共8页Journal of Fisheries of China

基　　金：国家科技支撑计划(2011BAD13B01;2011BAD45B01);国家自然科学基金项目(31200280)

摘　　要：应用实验生态学方法,以菲律宾蛤仔为饵料对脉红螺的摄食行为规律进行了研究。结果发现,当温度达到10.40℃时,脉红螺第一次出现摄食行为,日均摄食量为0.01 g/个;非交配期内,摄食量随温度升高而增大,当温度达16.20℃时,摄食量达最大值,为0.54 g/个,摄食周期为4 d;进入交配期后,脉红螺摄食量随温度升高先增加后减少,同时与交配率呈负相关关系;当温度达到18.05℃,交配率达最小值0.03,脉红螺日均摄食量达到最大的5.32 g/个,此时摄食周期为3.72 d。非交配期摄食量(c)与温度(t)间回归关系为c=0.01t2-0.24t+1.18,r=0.97,交配期摄食量(c)分别与温度(t)、交配率(m)的回归关系为c=-0.13t2+5.18t-48.08,r=0.61;c=-2.92m+3.33,r=-0.48。研究表明,脉红螺摄食周期变化为4 d,且温度和交配率作为两个重要的因素对其有显著影响。As one of the most commercially important whelks,Rapana venosa（ Valenciennes, 1846） ,is native to the Sea of Japan, Yellow Sea,East China Sea and the Bohai Sea. The studies on it focus on reproductive biology and ecological characteristics in our country. The constant failures of R. venosa＇ s artificial breeding show that we still don＇ t understand reproductive process of R. venosa well. R. venosa is a large predatory gastropod with broad environmental tolerances, usually taking bivalve species as food. So the further studies of its feeding habits would provide a basis for understanding this species＇ s ecological characteristics which may promote the development of artificial breeding. So in this study we describes the feeding behavior of R. venosa in controlled laboratory settings. It showed the first feeding behavior which consumed 0.01 g of bivalves tissue at 10.4 ~C. Daily feeding was increasing constantly due to the temperature rise and reached 0.54 g at 16.20 ~C ,the maximum during the period had four days of feed periodicity without mating. However, before the whelks ate less following the increase of mating rate, the feeding of the whelks climbed up firstly along with the variation of temperature in the period with mating behavior. The max daily feeding amount of fresh tissue was 5.32 g per whelk when the mating rate reached the minimum 0.03 at 18.05 ~C. The new feed periodicity was 3.72 days. The relationship between feeding （c）and temperature （t）without mating behavior was expressed as c = 0.01 t2 - 0. 24t ＋ 1. 18, r = 0.97. With the existing of mating, the relationship between feeding （c） and temperature（t） was expressed as c = - 0. 13t2 ＋ 5. 18t - 48.08, r = 0. 61 ; meanwhile, the relationship between feeding（c） and mating rate （m） was expressed as c = - 2. 92m ＋ 3. 33, r = - 0. 48. We concluded that the temperature and mate rate had important impacts on feeding amount significantly and speculated that R. venosa has a feeding periodicity about 4 days from this w

关 键 词：脉红螺 摄食节律 温度 交配率 

分 类 号：S966.2[农业科学—水产养殖]