THE DESCRIPTION OF WANDERING BEHAVIOR AND ITS OCCURRENCE VARYING IN DIFFERENT TIDAL AREAS IN MACROPHTHALMUS-JAPONICUS (DE HAAN) (CRUSTACEA, OCYPODIDAE)
THE DESCRIPTION OF WANDERING BEHAVIOR AND ITS OCCURRENCE VARYING IN DIFFERENT TIDAL AREAS IN MACROPHTHALMUS-JAPONICUS (DE HAAN) (CRUSTACEA, OCYPODIDAE)
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DOI：
10.1016/0022-0981(84)90181-3
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发表时间：
1984-01-01
影响因子：
2
通讯作者：
HENMI, Y
中科院分区：
文献类型：
--
作者：
HENMI, Y
在未游荡的A站(St.A)和游荡的B站(St.B)两个地点，研究了日本对虾游荡的一些特征和游荡机制。从6月中旬到9月中旬，在圣B的S水边观测到了许多流浪者。流浪者的数量明显遵循半月周期，在大潮附近达到顶峰。大多数流浪者是大型螃蟹，产卵的雌性蟹比例很低。在游荡季节，St.B洞穴主人的取食活动在退潮期间下降，但在St.A洞穴主人的取食活动更明显，并与St.B的流浪者几乎相同。St.B洞穴区域(St.B-b)低潮时基质水分含量显著低于St.A和St.B游荡区，St.A基质N含量并不显著高于St.B-b。St.B的螃蟹密度并没有显著高于St.A。这种游荡是由于洞穴区域的水供应不足所致，因为在退潮时水是摄食和呼吸所必需的。
Some characteristics of wandering M. japonicus (De Haan) and the mechanism of wandering were studied at 2 sites, Station A (St.A) where crabs did not wander and Station B (St.B) where wandering occurred. From mid-June to mid-Sept., many wanderers were observed along the water''s edge at St.B. The number of wanderers clearly followed a semi-lunar cycle with a peak near spring tide. Most wanderers were large crabs and the percent of ovigerous females was low. In the wandering season, feeding activity of burrow owners at St.B declined during the time of low tide, but at St.A. feeding activity of burrow owners was more pronounced and almost equal to that of wanderers at St.B. The water content of the substratum during low tide in the burrow area at St.B (St.B-b) was significantly lower than that at St.A and the wandering area at St.B. N content of the substratum in St.A was not significantly higher than that in St.B-b. Crab density at St.B was not significantly higher than at St.A. The wandering was due to poor water supply in the burrow area, since water is indispensable for feeding and respiration during low tide.