Prey items | Autumn | Spring | ||
---|---|---|---|---|
F% | IRI% | F% | IRI% | |
Copepods | ||||
|
0.00 | 0.00 | 96.00 | 97.55 |
Other cyclopoids | 6.67 | 3.22 | 0.00 | 0.00 |
Ostracods | 16.67 | 3.63 | 0.00 | 0.00 |
Amphipods | 53.33 | 76.81 | 64.00 | 2.17 |
Amphipod pieces | 43.33 | 0.00 | 0.00 | 0.00 |
Diptera | ||||
Chironomidae larvae | 6.67 | 16.14 | 0.00 | 0.00 |
Fish larvae ( |
3.33 | 0.18 | 4.00 | 0.002 |
Unknown eggs | 0.00 | 0.00 | 8.00 | 0.28 |
Prey items | Fish length groups | |||||
---|---|---|---|---|---|---|
< 60 mm | 60–100 mm | 100 mm > | ||||
F% | IRI% | F% | IRI% | F% | IRI% | |
Copepods | ||||||
|
0.00 | 0.00 | 56.10 | 0.49 | 7.37 | 28.99 |
Other cyclopoids | 0.00 | 0.00 | 4.88 | 0.88 | 0.00 | 0.00 |
Ostracods | 0.00 | 0.00 | 14.63 | 1.66 | 0.00 | 0.00 |
Amphipods | 0.00 | 0.00 | 56.10 | 82.12 | 75.00 | 57.56 |
Amphipod pieces | 0.00 | 0.00 | 36.59 | 0.00 | 0.00 | 0.00 |
Diptera | ||||||
Chironomidae larvae | 0.00 | 0.00 | 4.88 | 7.31 | 0.00 | 0.00 |
Fish larvae ( |
0.00 | 0.00 | 2.44 | 0.06 | 8.33 | 0.61 |
Unknown eggs | 0.00 | 0.00 | 2.44 | 0.95 | 8.33 | 12.84 |
Prey Items | Length groups | |||||
---|---|---|---|---|---|---|
< 60 mm | 60–100 mm | 100 mm > | ||||
F% | IRI% | F% | IRI% | F% | IRI% | |
Algae | ||||||
Diatom ( |
0.00 | 0.00 | 2.13 | 0.004 | 4.00 | 0.00 |
Brown algae pieces | 0.00 | 0.00 | 0.00 | 0.00 | 4.00 | 0.00 |
Copepods | ||||||
|
100.00 | 100.00 | 51.06 | 76.57 | 16.00 | 3.23 |
Other Calanoids | 0.00 | 0.00 | 2.13 | 0.01 | 0.00 | 0.00 |
|
0.00 | 0.00 | 2.13 | 0.004 | 0.00 | 0.00 |
Other Cyclopoids | 0.00 | 0.00 | 14.89 | 0.72 | 4.00 | 0.02 |
Harpacticoids | 0.00 | 0.00 | 2.13 | 0.004 | 0.00 | 0.00 |
Ostracods | 0.00 | 0.00 | 4.26 | 0.02 | 4.00 | 0.02 |
Mysids | 0.00 | 0.00 | 0.00 | 0.00 | 4.00 | 0.02 |
Amphipods | 0.00 | 0.00 | 59.57 | 22.47 | 60.00 | 96.65 |
Amphipod pieces | 0.00 | 0.00 | 31.91 | 0.00 | 40.00 | 0.00 |
Gastropods | 0.00 | 0.00 | 2.13 | 0.04 | 0.00 | 0.00 |
Diptera | ||||||
Chironomidae larvae | 0.00 | 0.00 | 0.00 | 0.00 | 4.00 | 0.03 |
Other Diptera larvae | 0.00 | 0.00 | 2.13 | 0.18 | 0.00 | 0.00 |
Fish larvae ( |
0.00 | 0.00 | 2.13 | 0.01 | 4.00 | 0.02 |
Fish scales | 0.00 | 0.00 | 2.13 | 0.004 | 0.00 | 0.00 |
Prey items | Autumn | Spring | ||
---|---|---|---|---|
F% | IRI% | F% | IRI% | |
Algae | ||||
Diatom ( |
3.13 | 0.22 | 0.00 | 0.00 |
Brown algae pieces | 0.00 | 0.00 | 1.35 | 0.00 |
Copepods | ||||
|
3.13 | 0.22 | 37.84 | 93.19 |
Other calanoids | 3.13 | 0.44 | 0.00 | 0.00 |
|
3.13 | 0.23 | 0.00 | 0.00 |
Other cyclopoids | 3.13 | 0.23 | 8.11 | 0.0002 |
Harpacticoids | 0.00 | 0.00 | 1.35 | 0.0002 |
Ostracods | 9.38 | 1.98 | 0.00 | 0.00 |
Mysids | 3.13 | 0.22 | 0.00 | 0.00 |
Amphipods | 50.00 | 85.18 | 36.49 | 6.75 |
Amphipod pieces | 43.75 | 0.00 | 13.52 | 0.00 |
Gastropods | 3.13 | 0.23 | 0.00 | 0.00 |
Diptera | ||||
Chironomidae larvae | 3.13 | 9.18 | 0.00 | 0.00 |
Other Diptera larvae | 0.00 | 0.00 | 1.35 | 0.06 |
Fish larvae ( |
6.25 | 1.42 | 0.00 | 0.00 |
Fish scales | 3.13 | 0.22 | 0.00 | 0.00 |
Prey items | F% | N% | W% | IRI % |
---|---|---|---|---|
Algae | ||||
Diatom ( |
1.54 | 0.15 | 0.00 | 0.004 |
Brown algae pieces | 1.53 | 0.00 | 0.00 | 0.00 |
Copepods | ||||
|
44.62 | 51.35 | 1.58 | 42.37 |
Other Calanoids | 1.54 | 0.30 | 0.002 | 0.009 |
|
1.54 | 0.15 | 0.009 | 0.004 |
Other cyclopoids | 10.77 | 3.61 | 0.64 | 0.82 |
Harpacticoids | 1.54 | 0.15 | 0.0002 | 0.004 |
Ostracods | 4.61 | 0.45 | 0.24 | 0.06 |
Mysids | 1.54 | 0.15 | 0.09 | 0.007 |
Amphipods | 66.15 | 42.62 | 2.90 | 54.04 |
Amphipod pieces | 36.92 | 0.00 | 0.00 | 0.00 |
Gastropods | 3.08 | 0.15 | 0.01 | 0.009 |
Diptera | ||||
Chironomidae larvae | 1.54 | 0.15 | 46.96 | 1.29 |
Other Diptera larvae | 1.54 | 0.15 | 46.69 | 1.29 |
Fish larvae ( |
3.08 | 0.30 | 4.35 | 0.08 |
Fish scales | 1.54 | 0.15 | 0.00 | 0.04 |
Total prey number | 664 | |||
Number of full stomachs | 65 |
Prey items | F% | N% | W% | IRI% |
---|---|---|---|---|
Copepods | ||||
|
51.06 | 64.71 | 1.26 | 10.99 |
Other cyclopoids | 4.26 | 1.76 | 0.20 | 0.03 |
Ostracods | 10.64 | 0.79 | 0.16 | 0.03 |
Amphipods | 68.09 | 18.44 | 0.81 | 4.28 |
Amphipod pieces | 10.64 | 0.00 | 0.00 | 0.00 |
Diptera | ||||
Chironomidae larvae | 4.26 | 0.48 | 93.67 | 1.31 |
Fish larvae ( |
2.13 | 0.32 | 0.74 | 0.01 |
Unknown eggs | 2.13 | 13.51 | 3.16 | 0.12 |
Total prey number | 629 | |||
Number of full stomachs | 52 |