英語翻譯
Table 2,3,and 4 indicate that the distributions of the components and quantity of benthos species in the inter-tidal zone are different with different types of the coast.For the same coast,the quantity distribution of species is connected with the salinity and the seashore open degree.The salinity variation in Zhoushan sea area is closely related to the seashore open degree.As a whole,the seashore open degree is bigger,the salinity is higher.So the quantity distribution of biological species has also obvious jumping change.For example,Cerithidea cingulata,Batillaria cumingi(Crosse)and Chlorostoma argyristoma(Gmelin)are mainly distributed over sea areas with little storm,low salinity and shadow.Bullacta exarata(Philippi)chiefly lives in muddy shores with high salinity and little storm.Turbo articulates primarily locates in sea areas with high salinity and good shadow.Polychaeta,Macrophthalmus(Macrophthalmus)japonicas,Nassarius Siquinjorensis(A.Adams),Macrophthalmus(Mareotis)pacificus Dana and Metaplax longipes Stimpson are distributed over both open coast and hidden coast.However,Mytilus edulis L and Ova laetuca L live at high-salinity and hidden reefs.
It is concluded from Table 2 and 3 that different biological species have different vertical distribution,and the quantity distribution of the same species is also different with different tide zone.As for muddy shore,the numbers of Mactra spectabilis,Thais clavigera Kuster,Monodanta labio(L.)and Cerithidea largillierti(Philippi)are bigger in high tidal zone than that in other tidal zones,Uca arcuata,Synechogobius hasta(Temminck etSchlegel),Batillaria cumingi(Crosse),Macrophthalmus(Mareotis)pacificus Dana and Mactra spectabilis in medium tidal zone,Mactra spectabilis,Nassarius Siquinjoreasis,Nassarius succcinctus,Macrophthalmus(Mareotis)pacificus Dana,Batillaria cumingi(Crosse),Metaplax longipes Stimpson.and Polychaeta in low tidal zone.As concerns Cerithidea cingulata,Macrophthalmus(Mareotis)japonacus de Haan and Bullacta exarata(Philippi),their number are biggest in all tidal zones,which illuminate their distributions being extensive.For rocky shore,the numbers of Turbo articulates Reeve,Nerita costata,Macrophthalmus(Macrophthalmus)japonicus and Patelloula pygmaea are bigger,especially the population density of Turbo articulates Reeve arrives at 20 528 ind/mz.the quantities of Nerita Striata,Cellana toreuma(Reeve),Tetrachta japonica Pilsbry,Ostrea plicatula Gmelin and Actinia equine(Linne)are also higher in medium tidal zone,and Cantharus-cecillei(philippi)in low tidal zone.Thais clavigeras Kuster and Mytdus eduhs L are more quantitive in three tidal zones.