To check this discrepancy, we have tested the foregoing spinners in the field conditions.

Blue Fox Nature Deep Spinners were tested in the summer season, during June, July and August, in Dniepro and Desna rivers, Ukraine. Lures were tested during our fishing trips from Kyiv to Chernihiv. Lures of one and the same model, 4 gr. BFNS of HGO color, were used. River localities with the rich coastal meadows were chiefly selected. 30-40 lure presentations were made in the morning and in the evening until darkness. In total, 1800 lure presentations were made by two experimentators and 167 fish of the different species were landed (see Table 1).

Species	Number	Main capture time	Eating terrestrial insects
chub, Leuciscus cephalus	7	morning	commonly
ide, Leuciscus idus	3	morning	commonly
sabrefish, Pelecus cultratus	14	evening	commonly
asp, Aspius aspius	24	moning	commonly
perch, Perca fluviatilis	121	moning	never
zander, Stizostedion lucioperca	8	evening	neber
pike, Esox lucius	11	moning	never
wels, Silurus glanis	3	evening	rarely

These data show that the grasshopper like bodies of the Blue Fox Nature Deep Spinners are indifferent for fish.

These lures allow to catch fish that are most abundant in the given river localities, asp among predatory cyprinid species and perch among other species in our case. In contrast to cyprinid fish, perch (as well as zander and pike) willingly eat aquatic forms of insects (such, for example, as larvae of dragonflies and damselflies), but they ignore their aerial forms and terrestrial insects.

According to our observations (in the middle part of Dniepro river, Ukraine), large grasshoppers like Tettigonia viridissima, with body length ... Read more »