Food and Feeding Habits Summary Gadus macrocephalus
 
Main Ref. Yang, M.S. and M.W. Nelson, 1999
Fish stage juv./adults Mean length NG
Sample size 605 Percent empty 2.8
Country Alaska Locality Islands of Four Mountains to Cape St. Elias
Period
  • January
  • February
  • March
  • April
  • May
  • June
  • July
  • August
  • September
  • October
  • November
  • December
Highlighted items on the list are known Feeding Periods of Gadus macrocephalus
Diet percent Food I Food II Food III Prey stage Item Name Comments
1.80 % zoobenthos benth. crust. amphipods juv./adults Gammaridea 1.58% Gammaridea, 0.10% Hyperiidea, 0.01% Caprellidea, 0.01% Cumacea, 0.14% Isopoda.
35.70 % nekton finfish bony fish juv./adults Theragra chalcogramma 0.73% Osteichthyes Teleostei, 0.87% non-gadoid fish remains, 0.01% Osmeridae, 0.12% Mallotus villosus, 0.03% Thaleichthys pacificus, 0.28% Gadidae, 22.96% Theragra chalcogramma, 0.32% Zoarcidae, 0.50% Sebastes sp., 3.53% Pleurogrammus monopterygius, 1.14% Cottoidea, 0.5% Agonidae, 0.01% Sarritor frenatus, 1.88% Trichodon trichodon, 0.44% Bathymaster signatus, 0.34% Stichaeidae, 0.32% Ammodytes hexapterus, 0.18% Pleuronectidae, 1.24% Atheresthes stomias, 0.22% Pleuronectes bilineatus, 0.03% Hippoglossus stenolepis.
31.50 % zoobenthos benth. crust. crabs juv./adults Chionoecetes bairdi 0.45% Reptantia, 10.69% Paguridae, 0.16% <>Acantholithodes hispidus, 0.01% Galatheidae, 0.03% <>Munida quadrispina, 0.21% Majidae, 1.20% <>Oregonia sp., 3.97% <>Hyas sp., 2.44% <>Hyas lyratus, 0.63% <>Chionoecetes sp., 10.77% <>Chionoecetes bairdi, 0.22% <>Erimacrus isenbeckii, 0.37% <>Cancer oregonensis, 0.21% Pinnotheridae, 0.16% <>Pinnixa sp.
4.40 % zooplankton plank. crust. euphausiids juv./adults Euphausiacea 4.37% Euphausiacea, 0.01% Mysidacea, 0.02% Mysidae.
0.50 % zoobenthos mollusks gastropods juv./adults Fusitriton oregonensis 0.07% Mollusca, 0.16% gastropoda, 0.01% <>Fusitriton oregonensis, 0.03% Pteropoda, 0.14% Bivalvia, 0.01% Nuculidae, 0.03% <>Yoldia sp., 0.01% Mytilidae, 0.01% Pectinidae, 0.01% <>Chlamys sp., 0.02% Balanomorpha.
1.00 % others others n.a./others n.a./others Fishery offal Fishery offal.
6.60 % zoobenthos worms polychaetes juv./adults Polychaeta 3.15% unid. Polychaeta, 2.29% Aphroditidae, 0.58% Polynoidae, 0.06% Nephtyidae, 0.01% Maldanidae, 0.01% Pectinariidae, 0.50% Sipuncula, 0.04% Echiura.
1.70 % zoobenthos echinoderms sea urchins juv./adults Stronglyocentrotus sp. 0.03% Asteroidea, 0.18% Ophiuroidae, 0.02% <>Stronglyocentrotus sp., 0.02% Holothuroidea, 0.01% Urochordata, 1.39% Porifera, 0.02% Anthozoa.
15.50 % zoobenthos benth. crust. shrimps/prawns juv./adults Pandalus borealis 1.01% Caridea, 0.95% Hippolytidae, 0.05% <>Eualus sp., 5.65% Pandalidae, 0.04% <>Pandalus sp., 4.72% <>Pandalus borealis, 0.32% <>Pandalus goniurus, 0.05% <>Pandalopsis dispar, 2.10% Crangonidae, 0.04% <>Crangon sp., 0.02% <>Crangon alaskensis, 0.43% <>Crangon dalli,0.15% <>Argis sp.
1.30 % nekton cephalopods squids/cuttlefish juv./adults Octopoda 0.03% Cephalopoda, 0.02% Teuthoidea, 1.20% Octopoda.
Entered by Miranda, Lilibeth on 08.15.01
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