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Food and Feeding Habits Summary Gadus chalcogrammus
 
Main Ref. Yang, M.S. and M.W. Nelson, 1999
Fish stage juv./adults Mean length 40.00 FL
Sample size 1059 Percent empty 6.9
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 chalcogrammus
Diet percent Food I Food II Food III Prey stage Item Name Comments
3.90 % zoobenthos benth. crust. amphipods juv./adults Themisto sp. 1.31% Gammaridae, 0.18% Ampeliscidae, 2.11% <>Themisto sp., 0.15% Cumacea, 0.05% <>Leucon sp., 0.13% Isopoda.
13.50 % nekton finfish bony fish juv./adults Mallotus villosus 0.05% <>Clupea pallasi, 6.93% <>Mallotus villosus, 0.06% <>Thaleichthys pacificus, 0.01% Bathylagidae, 0.01% Chauliodontidae, 0.01% <>Stenobrachius leucopsarus, 0.7% Gadidae, 0.01% <>Gadus macrocephalus, 2.07% <>Theragra chalcogramma, 0.11% Zoarcidae, 0.05% <>Sebastes sp., 0.18% Cottidae, 0.42% Cyclopteridae, 0.21% Stichaeidae, 0.06% <>Lumpenus fabricii, 0.29% <>Lumpenus maculatus, 0.02% <>Poroclinus rothrocki, 0.29% <>Cryptacanthodes aleutensis, 0.19% <>Ammodytes hexapterus, 0.02% Pleuronectidae, 0.05% <>Atheresthes stomias, 0.25% <>Hippoglossoides elassodon, 0.34% <>Microstomus pacificus, 0.01% <>Reinhardtius hippoglossoides, 1.04% Teleostei, 0.72% non-Gadoid fish remains.
46.20 % zooplankton plank. crust. euphausiids juv./adults Euphausiacea 45.42% unidentified Euphausiacea, 0.48% Thysanoessa inermis, 0.04% Thysanoessa spinifera, 0.05% unidentified materials.
1.60 % zooplankton plank. crust. mysids juv./adults Meterythrops robusta 1.22% Mysidacea, 0.03% <>Acanthomysis pseudomacropsis, 0.04% <>Holmesiella anomala, 0.18% <>Meterythrops robusta, 0.01% <>Neomysis czerniawskii, 0.10% <>Neomysis rayii, 0.02% <>Pseudomma truncatum.
1.60 % zooplankton plank. crust. plank. copepods juv./adults Neocalanus cristatus 1.58% Calanoida, 0.01% <>Neocalanus cristatus.
0.60 % zoobenthos worms polychaetes juv./adults Polychaeta 0.51% Polychaeta, 0.05% Polynoidae, 0.03% Chaetognatha.
31.40 % zoobenthos benth. crust. shrimps/prawns juv./adults Pandalus borealis 10.30% Caridea, 0.88% <>Pasiphaea pacifica, 0.10% Hippolytidae, 0.12% <>Spirontocaris arcuata, 0.01% <>Eualus barbata, 0.06% <>Eualus avinus, 11.9% Pandalidae, 3.3% <>Pandalus borealis, 0.05% <>Pandalus goniurus, 0.67% <>Pandalus jordani, 0.45% <>Pandalopsis sp., 1.92% Crangonidae, 0.13% <>Crangon communis, 1.38% Paguridae
1.20 % nekton cephalopods squids/cuttlefish juv./adults Berryteuthis magister 0.07% Cephalopoda, 0.30% Teuthoidea, 0.47% Gonatidae, 0.20% <>Berryteuthis magister, 0.14% Octopoda.
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