TY - JOUR
T1 - Dining in the Deep: The Feeding Ecology of Deep-Sea Fishes
AU - Drazen, Jeffrey C.
AU - Sutton, Tracey
PY - 2017/1/1
Y1 - 2017/1/1
N2 - 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.
AB - 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.
KW - Feeding rates
KW - Food webs
KW - Trophic biomarkers
KW - Trophic guilds
KW - Vertical carbon flux
UR - https://nsuworks.nova.edu/occ_facarticles/803
UR - http://www.annualreviews.org/doi/full/10.1146/annurev-marine-010816-060543?url_ver=Z39.88-2003&rfr_id=ori%3Arid%3Acrossref.org&rfr_dat=cr_pub%3Dpubmed&
U2 - 10.1146/annurev-marine-010816-060543
DO - 10.1146/annurev-marine-010816-060543
M3 - Article
C2 - 27814034
SN - 1941-1405
VL - 9
JO - Annual Review of Marine Science
JF - Annual Review of Marine Science
ER -