| Remarks |
Commonly found in about 300-500 m depth. Temperature preferences appear to range from about 1-4°C, although bottom temperatures below 0°C have been recorded at capture depths. Amphipods predominate in the diet, although polychaetes and various natant crustaceans are also important. Also feeds on bivalves, isopods, echinoderms (notably ophiuroids), and ctenophores (Ref. 1371). Consumed primarily benthic organisms (Ref. 51343). Parasites of the species include 3 myxosporidians, 1 monogenean (Macruricotyle newfoundlandiae), 3 cestodes, 6 trematodes, 4 nematodes, 1 acanthocephalan, 2 protozoans (Glugea berglax and Eimeria sp.), copepod (Sphyrion lumpi) and 3 crustaceans; Davisia newfoundlandia, Zschokkella kudoi, Cyclocotyloides pinguis and Clavellomimus macruri being specific to roughhead grenadier (Ref. 5951). |