FN Archimer Export Format PT J TI The retention of cadmium and zinc in appendicularian houses BT AF FISHER, NS NOLAN, CV GORSKY, G AS 1:;2:;3:; FF 1:;2:;3:; IF 0.662 TC 3 UR https://archimer.ifremer.fr/doc/00103/21376/18976.pdf LA English DT Article DE ;APPENDICULARIANS;CADMIUM;ZINC;LARVACEANS;VERTICAL TRANSPORT AB The discarded houses of appendicularians can be important components of marine snow and might therefore be instrumental in mediating the vertical flux of metals from surface waters in oceanic ecosystems. Their significance in this regard depends on the retention of metals in these organic debris. To assess this, an experiment was conducted in which the release of cadmium and zinc from discarded houses of the appendicularian Oikopleura longicauda was studied using gamma-emitting radiotracers. The retention curves of the two metals conformed with a single exponential decay loss model. The retention half-times were of the order of two days, suggesting that sinking appendicularian houses would not transport these metals to deep ocean waters but could contribute to their flux out of surface waters. PY 1991 SO Oceanologica Acta SN 0399-1784 PU Gauthier-Villars VL 14 IS 4 UT A1991GG20000010 BP 427 EP 430 ID 21376 ER EF