Spatial and seasonal distributions of ten species of benthic macrofauna and twelve water environmental factors in a subtidal zone near the Daya Bay nuclear power plant

In this study, we analyzed the spatial and seasonal distributions of ten species benthic macrofauna 12 water environmental parameters at thirty-six sampling stations in subtidal zone near Daya Bay Nuclear Power Plant. The results showed that there were four types distribution characteristics for 10 macrobenthic animals factors nuclear power plant: (1) three macrofauna, namely Apionsoma (Apionsoma) trichocephalus , Amphioplus (Lymanella) laevis P. bidentata six parameters, including depth, salinity, dissolved oxygen, suspended solids, chromium, lead increased from inside bay to outside bay. (2) Three cristata T. lata scabra oils, arsenic, total phosphorus, silicate, decreased (3) Two A. dibranchis, undulatus one parameter, pH, higher central than (4) One Sigambra hanaokai nitrogen, lower Correlation BIO-ENV analyses confirmed depth was main factor affecting macrofauna. Understanding dominant could help protect cold source systems macrofaunal blockage explore marine ecosystem connectivity.