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Hopkins Lab

Publications from the Hopkins Lab

Temporal Coding in the Electrosensory System
Systematics and Evolution of Electric Fishes
Passive electrolocation
Electrogenesis: Functions and Mechanisms of Signal Generation Among Electric Fishes
Hormonal Control of Electrogenesis

Additional Publications

New Publications

Sullivan JP, Lavoué S, Hopkins CD. 2016. Cryptomyrus: a new genus of Mormyridae (Teleostei,Osteoglossomorpha) with two new species from Gabon, West-Central Africa. ZooKeys 117-150. http://zookeys.pensoft.net/articles.php?id=7137

 

Gallant, J. R., Deitcher, D. L. and Hopkins, C. D. (2012). Differential expression of genes and proteins between electric organ and skeletal muscle in the mormyrid electric fish Brienomyrus brachyistius. J. Exp. Biology 215, 2479-2494. PDF
Lavoué, Sébastien; Miya,M.; Arnegard, M.E.;Sullivan, J.P.; Hopkins, C. D. Nishida, M. (2012) Comparable Ages for the Independent Origins of Electrogenesis in African and South American Weakly Electric Fishes. PLOS-One, May 2012 | Volume 7 | Issue 5 | e36287 May 14, 2012. PDF. News (Japanese)
Gallant, J. R., Arnegard, M. E., Sullivan, J. P., Carlson, B. A. and Hopkins, C. D. (2011). Signal variation and its morphological correlates in Paramormyrops kingsleyae provide insight into the evolution of electrogenic signal diversity in mormyrid electric fish. J Comp Physiol A Neuroethol Sens Neural Behav Physiol 197.PDF. Supplement.

Arnegard, M., E., McIntyre, P., B. , Harmon, L. J., Zelditch, M. L., Crampton, W. G. R., Davis, J. K., Sullivan, J. P., Lavoué, S. and Hopkins, C. D. (2010). Sexual Signal Evolution Outpaces Ecological Divergence during Electric Fish Species Radiation. American Naturalist, 176 (3) 335-356. PDF.

See Carl Zimmer's Blog SEX WEEK: WHEN LOVE SHOCKS

Hopkins, C. D. (2010) A biological function for electroreception in sharks and rays. J. Exp. Biol. 213: 1005-7 PDF
Hopkins, C. D. (2009) Electroreception. In: Encyclopedia of Perception. Goldstein, E. B. (ed) Sage Publications., Thousand Oaks, CA, pp. 384-388. PDF
Kawasaki, M. and Hopkins, CD. 2009. Evolution and brain mechanisms in electric fishes. Science Journal Kagaku 79(6) 647-653. (In Japanese) PDF

Sullivan JP, and Hopkins CD. 2009. Brachyhypopomus bullocki, a new species of electric knifefish (Gymnotiformes: Hypopomidae) from northern South America. PROCEEDINGS OF THE ACADEMY OF NATURAL SCIENCES OF PHILADELPHIA 158: 183-192.PDF
Carlson, B.A. (2009) Temporal pattern recognition by single neurons in a sensory pathway devoted to social communication behavior. J. Neuroscience. 29 (30):9417-9428. PDF
Lavoué, S., Arnegard, M. E., Sullivan, J. P. and Hopkins, C. D. (2008). The Petrocephalus of Odzala offer insights into evolutionary patterns of signal diversification in the Mormyridae, a family of weakly electrogenic fishes from Africa. Journal of Physiology (Paris) 102:322-339. PDF
Electrical perception and communication.
Hopkins, C. D. (2009) Encyclopedia of Neuroscience, Squire, L., ed. . Academic Press, vol. 3, pp. 813-831. Oxford, Academic Press. PDF
Electric signaling and electroreception properties in electric fishes of the genus, Campylomormyrus Mormyridae. Natalie Trzcinski and Carl D. Hopkins. (2008) Cornell Synapse. 2:19-22. PDF
Differentiation of morphology, genetics and electric signals in a region of sympatry between sister species of African electric fish (Mormyridae). S. LAVOUE , J. P. SULLIVAN, M. E. ARNEGARD & C. D. HOPKINS (2008) Journal of Evolutionary Biology. 21: 1030-1045. PDF

POISSONS D'EAUX DOUCES ET SAUMÂTRES DE BASSE GUINÉE OUEST DE L'AFRIQUE CENTRALE Vol 1

The Fresh and Brackish Water Fishes of Lower Guinea, West-Central Africa.

Melanie Stiassny, Guy G. Teugels, and Carl D. Hopkins, Editors PDF

IRD Éditions, Paris; Coll: Faune et Flore tropicales (2008)

Carcharhinidae, Pristidae, Dasyatidae, Protopteridae, Polypteridae, Elopidae, Ophichthyidae,Clupeidae, Denticipitidae, Pantodontidae, .Notopteridae, Mormyridae, Kneriidae, Hepsetidae, Alestidae, Distichodontidae,Cyprinidae, Ariidae,Bagridae,Claroteidae, Schilbeidae, Clariidae, Malapteruridae, Mochokidae, Amphiliidae.

POISSONS D'EAUX DOUCES ET SAUMÂTRES DE BASSE GUINÉE OUEST DE L'AFRIQUE CENTRALE Vol 2.

MRAC Publications, Tervuren; Coll: Faune et Flore tropicales (2008)

Poeciliidae, Aplocheilidae, Channidae, Polycentridae, Anabantidae, Cichlidae, Latidae , Lutjanidae, Carangidae, Haemulidae, Sciaenidae, Monodactylidae, Polynemidae, Mugilidae, Eleotridae, Gobiidae, Microdesmidae, Mastacembelidae, Tetraodontidae, Syngnathidae, Cynoglossidae, Paralichthyidae.

Electrical and behavioral displays in courtship for the mormyrid, Brienomyrus brachyistius. Journal of Experimental Biology (2007) 210 (13): 2244-2252 [Ryan Wong & Carl Hopkins]. PDF. News. Science Daily

Time-domain signal divergence and discrimination without receptor modification in sympatric morphs of electric fishes. Journal of Experimental Biology (2006) 208:2182-2198. [Matthew Arnegard, B. Scott Jackson and Carl D. Hopkins] PDF. News Science Daily Physorg.com


©Matthew Arnegard
Electric organ discharge patterns during group hunting by a mormyrid fish. Proceedings of the Royal Society B. (2005). 272:1305-1314 [Matthew Arnegard and Bruce Carlson]. PDF.
The transparency of Lake Malawi provided the first opportunity to simultaneously observe freely behaving mormyrid fish and record their EODs. Arnegard and Carlson observed a piscivorous mormyrid, Mormyrops anguilloides, hunting in small groups in Lake Malawi while feeding on rock-frequenting cichlids of the largest known vertebrate species flock.


© Matthew Arnegard

Electroreception. Series: Springer Handbook of Auditory Research, Vol. 21. Bullock, T.H.; Hopkins, C.D.; Popper, A.N.; Fay, R.R. (Eds.) 2005, 485 p. 67 illus., Hardcover ISBN: 0-387-23192-7.

Passive Electrolocation. In: Electroreception, Eds: Bullock, TH, Hopkins, CD, Popper, AN, and Fay, RR (2005) Springer Handbook of Auditory Research Vol 21. Springer-Verlag. New York., pp. 264-289 [Carl Hopkins]. PDF

Nesting and Parental Care in the Weakly Electric Fish, Gymnotus (Gymnotiformes: Gymnotidae) with Descriptions of Larval and Adult Electric Organ Discharges of Two Species. Copeia. 2005(1): 48-60 [W. G. R. Crampton and C. D. Hopkins]. PDF

A New Stomatorhinus (Osteoglossomorpha: Mormyridae) from the Ivindo River, Gabon, West Central Africa. Zootaxa (2004) 847:1-23.[Sullivan, J.P. and Hopkins, C. D.] PDF
Multiple Cases of Striking Genetic Similarity Between Alternate Electric Fish Signal Morphs in Sympatry. Evolution 2005: 59(2):324-343 [Matthew E. Arnegard, Steven Bogdanowicz and Carl D. Hopkins]. PDF
Comparative anatomy of the electrosensory lateral line lobe of mormyrids: The mystery of the missing map in the genus Stomatorhinus (Family: Mormyridae). Brain Behavior and Evolution (2005) 65:188-201. [Mcnamara, Ann Marie; Denizot, J. P. , and Hopkins, C. D. ] PDF

Simultaneous analysis of five molecular markers provides a well-supported phylogenetic hypothesis for the living bony-tongue fishes (Osteoglossomorpha: Teleostei). Molecular Phylogenetics and Evolution. [Sullivan, J. P. and Lavoué, S] (2004). PDF

Central control of electric signaling behavior in the mormyrid Brienomyrus brachyistius : segregation of behavior-specific inputs and the role of modifiable recurrent inhibition. Journal of Experimental Biology. [Carlson, B. A. and C. D. Hopkins] (2004). PDF

Temporal Coding in the Electrosensory System

Central mechanisms of temporal analysis in the knollenorgan pathway of mormyrid electric fish. J. Exp. Biol. 202: 1311-1318. [Xu-Friedman, M. A. and C. D. Hopkins] (1999). PDF

Time-coding in the midbrain of mormyrid electirc fish I:   Physiology and anatomy of cells in the nucleus exterolateralis pars anterior (ELa). Journal of Comparative Physiology [A] 182(2): 115-130. [Amagai, S., M. A. Friedman and C. D. Hopkins] (1998). PDF

Time coding in the midbrain of mormyrid electric fish II. Stimulus selectivity in the nucleus exterolateralis pars posterior. Journal of Comparative Physiology [A], 1998. 182(2): p. 131-143. [Amagai] (1998). PDF

Neural substrates for species recognition in the time-coding electrosensory pathway of mormyrid electric fish. Journal of Neuroscience 18(3): 1171-1185. [Friedman, M. A. and C. D. Hopkins] (1998). PDF

Convergent designs for electrogenesis and electroreception. Current Opinion in Neurobiology 5: 769-777. [Hopkins, C. D.] (1995). PDF

Temporal structure of non-propagated electric communication signals. Brain Behavior and Evolution 28: 43-59. [Hopkins, C. D.] (1986). PDF

Behavior of Mormyridae . Electroreception. T. H. Bullock and W. F. Heiligenberg. New York, John Wiley & Sons : 527-576. [Hopkins, C. D.] (1986). PDF

Time domain processing of electric organ discharge waveforms by pulse-type electric fish. Brain Behavior and Evolution 29: 77-104. [Hopkins, C. D. and G. W. M. Westby] (1986). PDF

Temporal coding of species recognition signals in an electric fish. Science 212: 85-87. [Hopkins, C. D. and A. H. Bass] (1981). PDF

 

Systematics and Evolution of Electric Fishes

Comparative anatomy of the electrosensory lateral line lobe of mormyrids: The mystery of the missing map in the genus Stomatorhinus (Family: Mormyridae). Brain Behavior and Evolution (2005) in press [Mcnamara, Ann Marie; Denizot, J. P. , and Hopkins, C. D. ] PDF

Simultaneous analysis of five molecular markers provides a well-supported phylogenetic hypothesis for the living bony-tongue fishes (Osteoglossomorpha: Teleostei). Molecular Phylogenetics and Evolution. [Sullivan, J. P. and Lavoué, S] (2004). PDF

The Petrocephalus (Pisces, Osteoglossomorpha, Mormyridae) of Gabon, Central Africa, with the description of a new species. Zoosystema [Lavoué, S. Hopkins, C.D. and Kamdem-Toham, A.] (2004). PDF

AFLPs resolve phylogeny and reveal mitochondrial introgression within a species flock of African electric fish (Mormyroidea: Teleostei). Evolution 58 (2004). [Sullivan, J. P., S. Lavoué, M. E. Arnegard and C. D. Hopkins] PDF.

Phylogenetic utility of the first two introns of the S7 ribosomal protein gene in African electric fishes (Mormyroidea: Teleostei) and congruence with other molecular markers. Biological Journal of the Linnean Society. [ SÉBASTIEN LAVOUÉ, JOHN P. SULLIVAN and CARL D. HOPKINS] (2003). PDF

Discovery and phylogenetic analysis of a riverine species flock of African electric fishes (Mormyridae, Teleostei). Evolution 56(3): 597-616. [Sullivan, J. P., S. Lavoué and C. D. Hopkins] (2002). PDF

Quand les poissons apportent leur pierre...et leurs signaux électriques. Canopée Bulletin sur l'Environment en Afrique Centrale 1999 (janvier): 17-20. [Sullivan, J. P. and C. D. Hopkins] (2001). PDF see also A la découverte des poissons du parc national d’Odzala (2004) Canopée Bulletin sur l'Environment en Afrique Centrale 2004 (mai): 17-21. [Sullivan, J.P. Lavoué, S. and Friel, J. P.] PDF

Morphological and electrophysiological evidence for synonomy of two Marcusenius species (Osteoglossomorpha, Mormyridae) from west Central Africa. Cybium 25(3): 239-249. [Teugels, G. G., G. Boden and C. D. Hopkins] (2001). PDF

Molecular systematics of the African electric fishes (Mormyroidea: Teleostei) and a model for the evolution of their electric organs. Journal of Experimental Biology 203(4): 665-683. [Sullivan, J. P., S. Lavoué and C. D. Hopkins] (2000). PDF

Morphological and osteological evidence for the generic position of Mormyrus kingsleyae in the Genus Brienomyrus (Teleostei: Mormyridae). Copeia 1998(1): 199-204. [Teugels, G. G. and C. D. Hopkins] (1998). PDF

Molecular insights into the phylogeny of mormyriform fishes and the evolution of their electric organs. Brain Behavior and Evolution 49(6): 324-351. [Alves-Gomes, J. and C. D. Hopkins] (1997). PDF

A systematic revision of the large-scaled Marcusenius with description of a new species from Cameroon (Teleostei; Osteoglossomorpha; Mormyridae). Journal of Natural History. 31(11): 1645-1682. [Boden, G., G. G. Teugels and C. D. Hopkins] (1997). PDF

Hypopomus pinnicaudatus (Hypopomidae) a new species of gymnotiform fish from South America. Copeia 1991: 151-161. [Hopkins, C. D.] (1991). PDF

Detection of a previously unrecognized mormyrid fish ( Mormyrus subundulatus ) by electric discharge characteristics. Cybium 13: 319-326. [Crawford, J. D. and C. D. Hopkins] (1989). PDF

 

Electrogenesis: Functions and Mechanisms of Signal Generation Among Electric Fishes

Design features for electric communication. J. exp. Biol. 202(10): 1217-1228. [Hopkins, C. D.] (1999). PDF

Signal evolution in electric communication . The Design of Animal Communication. M. D. Hauser and M. Konishi. Cambridge, Massachusetts, M.I.T. Press : 461-491. [Hopkins, C. D.] (1999). PDF

Stereotyped temporal patterns in electric communication. Animal Behaviour. [Carlson, B.A. and C.D. Hopkins] (2004). PDF

Central control of electric signaling behavior in the mormyrid Brienomyrus brachyistius : segregation of behavior-specific inputs and the role of modifiable recurrent inhibition. Journal of Experimental Biology. [Carlson, B. A. and C. D. Hopkins] (2004). PDF

Multivariate analysis of electric signal variation among seven blunt-snouted Brienomyrus species (Teleostei: Mormyridae) from Gabon. Environmental Biol. of Fishes 67(4): 321-339. [Arnegard, M. E. and C. D. Hopkins] (2003). PDF

Androgen correlates of socially induced changes in the electric organ discharge waveform of a mormyrid fish. Hormones and Behavior 38: 177-186. [Carlson, B. A., C. D. Hopkins and P. Thomas] (2000). PDF

Functional analysis of sexual dimorphism in an electric fish, Hypopomus pinnicaudatus, order Gymnotiformes. Brain Behav Evol 35(6): 350-67. [Hopkins, C. D., N. C. Comfort, J. Bastian and A. H. Bass] (1990). PDF

Neuroethology of electric communication. Annual Review of Neuroscience 11: 497-535. [Hopkins, C. D.] (1988). PDF

Passive Electrolocation

A quantitative analysis of passive electrolocation behavior in electric fish. Brain Behavior and Evolution 50 (suppl 1): 32-59. [Hopkins, C. D., K.-T. Shieh, D. W. McBride Jr. and M. Winslow] (1997). PDF

The dorsal filament of the weakly electric Apteronotidae (Gymnotiformes, Teleostei) is specialized for electroreception. Brain Behavior and Evolution 47: 165-178. [Franchina, C. R. and C. D. Hopkins] (1996). PDF

Tracking individual mormyrid electric fish in the field using electric organ discharge waveforms. Animal Behaviour 51(2): 391-407. [Friedman, M. A. and C. D. Hopkins] (1996). PDF

Short-range orientation in electric fish:   an experimental study of passive electrolocation. Journal of Experimental Biology 199(11): 2393-2393. [Shieh, K.-T., W. Wilson, M. Winslow, D. W. McBride Jr. and C. Hopkins] (1996). PDF

Contributions of electrosensory systems to neurobiology and neuroethology.    Proceedings of a conference in honor of the scientific career of Thomas Szabo. Journal of Comparative Physiology A 173: 657-763. [Bell, C. C., C. D. Hopkins and K. Grant] (1993).

Contributions of Electrosensory Systems to Neurobiology and Neuroethology. Proceedings of a conference in honor of the scientific career of Thomas Szabo. Montreal, Canada, August 26-28, 1992. J Comp Physiol [A] 173(6): 657-807. [Bell, C. C., C. D. Hopkins and K. Grant, eds.] (1993).

Neuroethology of passive electrolocation. Journal of Comparative Physiology A 173(6): 689-695. [Hopkins, C. D.] (1993). PDF

Behavioral analysis of sensory function:   active and passive electrolocation. Introduction to Symposium 2. Journal of Comparative Physiology A 173(6): 688. [Hopkins, C. D.] (1993). PDF

Directional sensitivity of tuberous electroreceptors:   polarity preferences and frequency tuning. Journal of Comparative Physiology A 173(4): 415-424. [McKibben, J. R., C. D. Hopkins and D. Y. Yager] (1993). PDF

Directional characteristics of tuberous electroreceptors in the weakly electric fish, Hypopomus (Gymnotiformes). Journal of Comparative Physiology A 173(4): 401-414. [Yager, D. Y. and C. D. Hopkins] (1993). PDF

Behavioural analysis of electric signal localization in the electric fish, Gymnotus carapo , Gymnotiformes. Animal Behaviour 36(6): 1658-1671. [Davis, E. A. and C. D. Hopkins] (1988). PDF

Electric fish approach stationary signal sources by following electric current lines. Journal of Experimental Biology 130: 359-367. [Schluger, J. and C. D. Hopkins] (1987). PDF

 

Hormonal Control of Electrogenesis

Hormonal control of sex differences in the electric organ discharge (EOD) of mormyrid fishes. Journal of Comparative Physiology [A] 156: 587-605. [Bass, A. H. and C. D. Hopkins] (1985).PDF

Shifts in frequency tuning of electroreceptors in androgen-treated mormyrid fish. Journal of Comparative Physiology 155: 713-724. [Bass, A. H. and C. D. Hopkins] (1984). PDF

Hormonal control of sexual differentiation:   Changes in electric organ discharge waveform. Science 220: 971-974. [Bass, A. H. and C. D. Hopkins] (1983). PDF

 

Additional Publications

Functions and mechanisms in electroreception . Fish Neurobiology. R. G. Northcutt and R. E. Davis. Ann Arbor, Univ. of Michigan Press. 1 : 215-259. [Hopkins, C. D.] (1983).

Acoustic communication in an electric fish Pollimyrus isidori (Mormyridae). Journal of Comparative Physiology A 159(3): 297-310. [Crawford, J. D., M. Hagedorn and C. D. Hopkins] (1986). PDF

Sensory mechanisms in animal communication . Animal Behaviour 2:   Animal Communication. T. R. Halliday and P. J. B. Slater. Oxford, Blackwell Scientific Publications. 2 : 114-155. [Hopkins, C. D.] (1983).

Neuroethology of species recognition in electroreception . Advances in Vertebrate Neuroethology. New York, Plenum. Hopkins, C. D., Ed. (1983). PDF

On the diversity of electric signals in a community of mormyrid electric fish in West Africa. American Zoologist 21: 211-222. [Hopkins, C. D.] (1981). PDF

Evolution of electric communication channels of mormyrids. Behavioural Ecology and Sociobiology 7: 1-13. [Hopkins, C. D.] (1980). PDF

Evolutionary designs for electric signals and electroreceptors in Gymnotid fishes of Surinam. Behavioral Ecology and Sociobiology 3: 113-134. [Hopkins, C. D. and W. Heiligenberg] (1978). PDF

Electric communication . How Animals Communicate. T. A. Sebeok. Bloomington., Indiana Univ. Press : 263-289. [Hopkins, C. D.] (1977). PDF

Stimulus filtering and electroreception: Tuberous electroreceptors in three species of gymnotid fish. Journal of Comparative Physiology 111: 171-207. [Hopkins, C. D.] (1976). PDF

Electric communication in the reproductive behavior of Sternopygus macrurus (Gymnotoidei). Z. Tierpsychol. 35: 518-535. [Hopkins, C. D.] (1974). PDF

Electric communication in fish. American Scientist 62: 426-37. [Hopkins, C. D.] (1974). PDF

Electric communication: functions in the social behavior of Eigenmannia virescens . Behaviour 50: 270-305. [Hopkins, C. D.] (1974). PDF

A continuous sound spectrum analyzer for animal sounds. Zeitschrift fur Tierpsychologie 34: 313-320. [Hopkins, C. D., M. Rosetto and A. Lutjen] (1974). PDF

Lightning as background noise for communication among electric fish. Nature 242: 268-270. [Hopkins, C. D.] (1973). PDF

Sex differences in electric signalling in an electric fish. Science 176: 1035-1037. [Hopkins, C. D.] (1972). PDF

Food parasitism and competition in two terns. The Auk 89: 583-584. [Hopkins, C. D. and R. H. .Wiley] (1972).

 


Department of Neurobiology and Behavior
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