Llected in the 4 Mid-Atlantic Ridge (MAR) hydrothermal fields, BCF was estimated at n102 105 and these Fmoc-Gly-Gly-OH ADC Linkers values are related to those for the littoral mussels [18,58]. Based on information from Tables S1 and S2 (trace element contents in organisms and biotope water, respectively), the BCF values had been estimated for C. pacifica, too as for PX-478 Cancer suspension feeders Brachiopoda, Zoantharia, and Demospongia (Table S4). As was pointed out above, we analysed not only dissolved components, however the total dissoluble elements. Storage of water samples at pH two prevents adsorption of trace components on the vial’s inner walls, also as delivers a dissolution of the labile fraction of suspended particles. The latter consists of many microparticles composed on the mineral (with the exception of terrigenous ones) and organic substances. It must be noted that the labile fraction may possibly serve as a diet for the suspension feeding bottom organisms. So, the BCF values that we calculated will be the approximate estimates, that in fact are decrease than these values that might be obtained taking into account only the dissolved fraction of metals (because the lower concentration of an element inside the biotope water, the higher its BCF value, in accordance with all the calculation formula). The BCF values for C. pacifica and suspension-feeders are displayed in Figures 136.Figure 13. Distribution pattern of the trace element BCF in gills, the rest of soft physique, and shell of C. pacifica.At the Piip Volcano’s southern best, C. pacifica is among the most abundant and dominant species whose feeding tactic relies on bacterial symbiotrophy, which functionally depends on the decreased compounds in the fluids [29,30]. The highest BCF values (106 05 ) had been detected for Ni, Cu, Zn, Ag, Cd, and Pb in the C. pacifica’s gills and physique. For all of the components (except Mn and Ba), the minimal accumulation was observed in C. pacifica’s shell. The Mn is the only element with all the minimal BCF (about ten) in all 3 selected parts (Figure 13). An capability of most elements to enhanced accumulation in soft tissues of organisms appeared to be characteristic not simply for symbiotrophic clam C. pacifica, but for suspensionfeeder Brachiopoda. From Figure 14, it could be seen that inside the soft physique, each of the elementsFigure 13. Distribution pattern from the trace element BCF in gills, the rest of soft body, and shell of C. pacifica.Minerals 2021, 11, 1233 19 ofAn capability of most elements to enhanced accumulation in soft tissues of organisms appeared to become characteristic not only for symbiotrophic clam C. pacifica, but for suspension-feeder Brachiopoda. From Figure 14, it may very well be noticed that in the soft body, all of the (except Mn and Fe) accumulated 5 to 100 occasions to 100than inmore thanIn soft body tissues elements (except Mn and Fe) accumulated 5 extra instances the shell. within the shell. In soft of Brachiopoda,Brachiopoda, thereachvalues attain a(as much as 106 ) for Ag106) for Ag and Cd, body tissues with the BCF values BCF a maximum maximum (up to and Cd, for many 4 two from the elements, BCF ranged 102ranged 10204, lowestthe lowest BCF values (102) were for many from the components, BCF 0 , although the even though BCF values (ten ) have been detected for Mn and, inside the case from the shell,the shell,Within the casethe suspension feeder Anthozoa detected for Mn and, within the case of for Se. for Se. In of case of suspension feeder An3 Zoantharia, the elevated elevated BCF valueswere detected detected forCu, Zn, Ni, Pb, and thozoa Zoantharia, the BCF values (n10 ) (n.