Agonistic behaviour in mormyrid fish: Latency-relationship between the electric discharges ofGnathonemus petersii andMormyrus rume
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منابع مشابه
HPLC-determination of apomorphine in a mormyrid fish, gnathonemus petersii.
Uptake of apomorphine and elimination kinetics in brain and muscle tissue of the weakly electric fish Gnathonemus petersii (Mormyridae) was determined by HPLC. 20 min exposure of the fish to apomorphine in the aquarium water (0.4 mg/l) resulted in a concentration factor of 1.09 for brain and 0.55 for muscle tissue. Elimination from brain tissue can be described with first order kinetics (t1/2 =...
متن کاملApomorphine and haloperidol influence electric behaviour of a mormyrid fish.
The electric behaviour of the mormyrid Gnathonemus petersii is changed by dopaminergic drugs applied to the aquarium water. The upper limit of the interpuls interval distributions is significantly shifted to shorter intervals by apomorphine-HCl (.082 - .328 mg/ml), and to longer intervals by haloperidol (.041 - .164 mg/ml). The effect of apomorphine is antagonized by haloperidol. Probably, a do...
متن کاملIndividual and sex specificity in the electric organ discharges of breeding mormyrid fish (Pollimyrus isidori).
I monitored the electric organ discharges (EODs) of 14 Pollimyrus isidori, (Cuvier and Valenciennes) during an artificially induced breeding season, to examine sex and individual differences in reproductive fish. EODs were repeatedly recorded over an 11-day period to ascertain the stability of each individual's EOD and to make a quantitative assessment of sex differences. Within days, I found t...
متن کاملEffects of social interaction on the electric organ discharge in a mormyrid fish, Gnathonemus petersii (Mormyridae, Teleostei).
African weakly discharging electric fish (Mormyridae) use their self-generated electric signals and electroreceptive abilities for orientation and communication in the context of courtship and territorial interactions. This paper documents socially mediated changes in the electric organ discharge (EOD) of subadult Gnathonemus petersii under non-breeding environmental conditions. Increases in EO...
متن کاملLandmark use and development of navigation behaviour in the weakly electric fish Gnathonemus petersii (Mormyridae; Teleostei).
African mormyrids, such as Gnathonemus petersii, migrate: nocturnally, from daytime shelters to find food and return by morning, and seasonally, spawning in swamps flooded during the rainy season. The present study examined whether the fish use landmarks detected via electrolocation to locate an aperture, whether they detect changes in landmark size and respond appropriately, whether landmarks ...
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ژورنال
عنوان ژورنال: Experientia
سال: 1974
ISSN: 0014-4754,1420-9071
DOI: 10.1007/bf01921591