ISSN:
1573-5133
Schlagwort(e):
Cyprinidae
;
Feeding ecology
;
Habitat
;
Minnows
;
Resource partitioning
;
Spatial distribution
Quelle:
Springer Online Journal Archives 1860-2000
Thema:
Biologie
Notizen:
Synopsis We examined relative abundance, distribution, and gut contents of Phoxinus eos and P. neogaeus in a small northern Michigan bog lake. P. eos were usually 5–100 x more abundant than P. neogaeus, but both species were more abundant near the lake margin than offshore. Both species fed primarily on algae and invertebrates associated with the bog mat, but differences in diet were associated with differences in trophic morphology. As expected, because of its relatively longer intestine and smaller mouth, P. eos consumed relatively more plant matter, especially green algae, and fewer macroinvertebrates than P. neogaeus. These dietary conclusions were supported by analysis of two independent data sets. Further work is needed to discriminate between the effects of body size and trophic morphology on diet.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1007/BF00005384
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