User:Tmclaughlin80/Grenadier (fish)

Abyssal grenadier <- original article

Changes I've already Published:

The sensory specialty of C. armatus also changes over its lifecycle; juveniles are more reliant on sight than olfaction, but developed adults are considered to be olfactory specialists.

Changes yet to publish:


 * Through the use of acoustic tracking devices, researchers were able to measure the responses of these species to the presence of food, and through mathematical quantification of their results, they were able to determine that these grenadier species follow an active foraging strategy consistent with predictions that follow optimal foraging theory.

Might add a whole section dedicated to behavior, geographic distribution, etc.

Coryphaenoides armatus occurs at the deep-slope, on the upper continental rise between 2,000 m and 4,700 m. However, they have been observed at depths between 282 m and 5180 m. Its diet changes as it matures, from benthic invertebrates such as crustaceans and holothuroids when young to mesopelagic and bathypelagic fish, sea urchins and cephalopods when adult. The sensory specialty of C. armatus also changes over its lifecycle; juveniles are more reliant on sight than olfaction, but developed adults are considered to be olfactory specialists. Examination of the stomach contents of specimens collected by trawling below 2,600 m deep in the Hudson Canyon showed that an important proportion of the diet of C. armatus is caught in the deep mesopelagic and bathypelagic regions. Research studies focused on the feeding and foraging habits of C. armatus has revealed that this species follows an active foraging strategy consistent with the optimal foraging theory. Very few ripe females, and no spent individuals have been collected, and this is suggestive of this species being semelparous. A study done on the influence of Carrion supply in the role of temporal changes in grenadier abundance showed a direct positive correlation to amount of carrion and the population of abyssal grenadier in the eastern North Pacific.