Spatial variability in the growth of invasive European barbel Barbus barbus in the River Severn basin, revealed using anglers as citizen scientists [PDF]
Life history trait analyses of non-native fishes help identify how novel populations respond to different habitat typologies. Here, using electric fishing and anglers as citizen scientists, scales were collected from the invasive barbel Barbus barbus ...
Trigo Fatima Amat +2 more
doaj +2 more sources
Comparative Bioaccumulation of PAH and BTEX in Malapterurus electricus (Siluriformes: Malapteruridae) and its Enteric Parasite, Electrotaenia malopteruri Sampled from Lekki Lagoon, Lagos, Nigeria [PDF]
Contamination of Lekki lagoon by petrogenic chemicals such as polycyclic aromatic hydrocarbons (PAH) and benzene, toluene, ethylbenzene, and xylene (BTEX) has been widely reported.
P. O. Isibor +8 more
doaj +1 more source
Sexual dimorphism in the electric knifefish, Gymnorhamphichthys rondoni (Rhamphichthyidae: Gymnotiformes) [PDF]
Sexual dimorfism refers to morphological differences between males and females of a species. It may be a result of different selection pressures acting on either or both sexes and may occur in any sexually-reproducing dioecious species, including fishes.
Elisa Queiroz GARCIA, Jansen ZUANON
doaj +1 more source
Theoretical analysis of pre-receptor image conditioning in weakly electric fish. [PDF]
Electroreceptive fish detect nearby objects by processing the information contained in the pattern of electric currents through the skin. The distribution of local transepidermal voltage or current density on the sensory surface of the fish's skin is the
Adriana Migliaro +2 more
doaj +2 more sources
Electric imaging through evolution, a modeling study of commonalities and differences. [PDF]
Modeling the electric field and images in electric fish contributes to a better understanding of the pre-receptor conditioning of electric images. Although the boundary element method has been very successful for calculating images and fields, complex ...
Federico Pedraja +3 more
doaj +1 more source
Generalization of learned responses in the mormyrid electrosensory lobe
Appropriate generalization of learned responses to new situations is vital for adaptive behavior. We provide a circuit-level account of generalization in the electrosensory lobe (ELL) of weakly electric mormyrid fish. Much is already known in this system
Conor Dempsey +2 more
doaj +1 more source
Electric fish are able to take what they have learnt about sensory processing in certain situations and apply it in other situations.
André Longtin
doaj +1 more source
Automatic realistic real time stimulation/recording in weakly electric fish: long time behavior characterization in freely swimming fish and stimuli discrimination. [PDF]
Weakly electric fish are unique model systems in neuroethology, that allow experimentalists to non-invasively, access, central nervous system generated spatio-temporal electric patterns of pulses with roles in at least 2 complex and incompletely ...
Caroline G Forlim, Reynaldo D Pinto
doaj +1 more source
Dominant-subordinate status emerges from agonistic encounters. The weakly electric fish, Gymnotus omarorum, displays a clear-cut example of non-breeding territorial aggression.
Rossana Perrone +2 more
doaj +1 more source
Effect of voltage gradient in an electrical field on threshold indices of fish response [PDF]
The work presents experimental methods and effect of an electric field of alternating current potential changes on threshold values of some fish species from the Volga delta response.
E.T. Prel
doaj +3 more sources

