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Abyssal grenadier (C. armatus)

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The average response time to bait placed on the seafloor for C. armatus was 25 minutes and the fish stayed for an average of 150 minutes when recorded in February of 1990 and 1992. However, the times decreased to averages of 15 minute response time and 98 minute average stay in October of 1991. The differences in response rates have been positively correlated with an increased swim speed in October when compared to Feburary due to the enrichment of the benthos via marine snow.[1]


C. armatus' diet is mainly composed of mid-water cephalopods and fishes but can also consume echinoderms.[2]


While C. armatus lives in depths between 2000 and 4800 meters in the Atlantic and Indian Oceans, they are limited to nutrient-dense environements between 2000 and 43000 meters in the Pacific Ocean.[3]


  1. ^ Priede, I. G.; Ragley, P. M.; Smith, K. L. (1994-03). "Seasonal change in activity of abyssal demersal scavenging grenadiers Coryphaenoides (Nematonums ) armatus in the eastern North Pacific Ocean". Limnology and Oceanography. 39 (2): 279–285. doi:10.4319/lo.1994.39.2.0279. ISSN 0024-3590. {{cite journal}}: Check date values in: |date= (help); line feed character in |title= at position 85 (help)
  2. ^ Bailey, D. M.; Ruhl, H. A.; Smith, K. L. (2006-03). "LONG-TERM CHANGE IN BENTHOPELAGIC FISH ABUNDANCE IN THE ABYSSAL NORTHEAST PACIFIC OCEAN". Ecology. 87 (3): 549–555. doi:10.1890/04-1832. ISSN 0012-9658. {{cite journal}}: Check date values in: |date= (help)
  3. ^ Jamieson, A. J.; Priede, I. G.; Craig, J. (2012-06-01). "Distinguishing between the abyssal macrourids Coryphaenoides yaquinae and C. armatus from in situ photography". Deep Sea Research Part I: Oceanographic Research Papers. 64: 78–85. doi:10.1016/j.dsr.2012.02.001. ISSN 0967-0637.