ABSTRACT
The presence of caprellid amphipod, Caprella scauroides is confirmed for the first time from New Zealand waters through two separate sample submissions received by the Ministry for Primary Industries (MPI) Marine Invasives Taxonomic Service (MITS) during May 2017, both from Okahu Bay, Waitemata Harbour, from swing mooring ropes. A subsequent report (November 2017) recorded the species from the Whangarei Harbour Marine High Risk Site Surveillance (MHRSS) survey. Caprella scauroides, non-indigenous to New Zealand, is morphologically similar and closely related to the known invasive, Caprella californica, with which it is often confused. Caprella scauroides from New Zealand is described in detail using both morphological and molecular methods.
Subject(s)
Amphipoda , Animals , New ZealandABSTRACT
In this research, the viability of three marine thraustochytrid isolates (fungoid protists) (WSG05, W15 and WH3) were investigated after freezing in liquid nitrogen. Five cryopreservative combinations containing horse serum, glycerol and dimethylsulfide (Me(2)SO) were used. The thraustochytrids were assessed directly after removal from liquid nitrogen and cell concentration measured for 10 days post-thawing. Results indicated that a combination of horse serum and Me(2)SO were the most effective cryoprotectants for each of the strains tested. Glycerol was only successful in producing growth in one of the strains once thawed. The protocols developed and tested in this study may have further application for cryopreserving other isolates in this class.