Dining in the Deep: The Feeding Ecology of Deep-Sea Fishes
Annual Review of Marine Science
Trophic guilds, Feeding rates, Trophic biomarkers, Vertical carbon flux, Food webs
Deep-sea fishes inhabit ∼75% of the biosphere and are a critical part of deep-sea food webs. Diet analysis and more recent trophic biomarker approaches, such as stable isotopes and fatty-acid profiles, have enabled the description of feeding guilds and an increased recognition of the vertical connectivity in food webs in a whole-water-column sense, including benthic-pelagic coupling. Ecosystem modeling requires data on feeding rates; the available estimates indicate that deep-sea fishes have lower per-individual feeding rates than coastal and epipelagic fishes, but the overall predation impact may be high. A limited number of studies have measured the vertical flux of carbon by mesopelagic fishes, which appears to be substantial. Anthropogenic activities are altering deep-sea ecosystems and their services, which are mediated by trophic interactions. We also summarize outstanding data gaps.
Jeffrey C. Drazen and Tracey Sutton. 2017. Dining in the Deep: The Feeding Ecology of Deep-Sea Fishes .Annual Review of Marine Science : 337 -366. https://nsuworks.nova.edu/occ_facarticles/803.