Fishes exhibit lifelong neurogenesis and continual brain growth. One consequence of this continual growth is that the nervous system has the potential to respond with enhanced plasticity to changes in ecological conditions that occur during ontogeny. The life histories of many teleost fishes are composed of a series of distinct stages that are characterized by shifts in diet, habitat, and behavior. In many cases, these shifts correlate with changes in overall brain growth and brain organization, possibly reflecting the relative importance of different senses and locomotor performance imposed by the new ecological niches they encounter throughout life. Chondrichthyan (cartilaginous) fishes also undergo ontogenetic shifts in habitat, movement patterns, diet, and behavior, but very little is known about any corresponding shifts in the size and organization of their brains. Here, we investigated postparturition ontogenetic changes in brain-body size scaling, the allometric scaling of seven major brain areas (olfactory bulbs, telencephalon, diencephalon, optic tectum, tegmentum, cerebellum, and medulla oblongata) relative to the rest of the brain, and cerebellar foliation in a chondrichthyan, i.e., the bluespotted stingray Neotrygon kuhlii. We also investigated the unusual morphological asymmetry of the cerebellum in this and other batoids. As in teleosts, the brain continues to grow throughout life, with a period of rapid initial growth relative to body size, before slowing considerably at the onset of sexual maturity. The olfactory bulbs and the cerebellum scale with positive allometry relative to the rest of the brain, whereas the other five brain areas scale with varying degrees of negative allometry. None of the major brain areas showed the stage-specific differences in rates of growth often found in teleosts. Cerebellar foliation also increases at a faster rate than overall brain growth. We speculate that changes in the olfactory bulbs and cerebellum could reflect increased olfactory and locomotor capabilities, which may be associated with ontogenetic shifts in diet, habitat use, and activity patterns, as well as shifts in behavior that occur with the onset of sexual maturity. The frequency distributions of the three cerebellar morphologies exhibited in this species best fit a 2:1:1 (right-sided:left-sided:intermediate) distribution, mirroring previous findings for another stingray species.

1.
Ariens Kappers CU, Huber GC, Crosby EC (1960): The Comparative Anatomy of the Nervous System of Vertebrates, Including Man. New York, Hafner, vol 2.
2.
Bauchot R, Bauchot ML, Platel R, Ridet JM (1977): Brains of Hawaiian tropical fishes; brain size and evolution. Copeia 1977:42-46.
3.
Bauchot R, Platel R, Ridet JM (1976): Brain-body weight relationships in Selachii. Copeia 1976:305-310.
4.
Beaudet L, Hawryshyn CW (1999): Ecological aspects of vertebrate ontogeny; in Archer SN, Djamgoz MBA, Loew ER, Partridge JC, Vallerga S (eds): Adaptive Mechanisms in the Ecology of Vision. Dordrecht, Kluwer Academic, pp 413-438.
5.
Birse SC, Leonard RB, Coggeshall RE (1980): Neuronal increase in various areas of the nervous system of the guppy, Lebistes. J Comp Neurol 194:291-301.
6.
Bodznick D, Northcutt RG (1980): Segregation of electro- and mechanoreceptive inputs to the elasmobranch medulla. Brain Res 195:313-321.
7.
Bone Q, Moore RH (2008): Biology of Fishes, ed 3. New York, Taylor and Francis.
8.
Bozzano A, Murgia R, Vallerga S, Hirano J, Archer S (2001): The photoreceptor system in the retinae of two dogfishes, Scyliorhinus canicula and Galeus melastomus: possible relationship with depth distribution and predatory lifestyle. J Fish Biol 59:1258-1278.
9.
Brandstätter R, Kotrschal K (1989): Life history of roach, Rutilus rutilus (Cyprinidae, Teleostei): a qualitative and quantitative study on the development of sensory brain areas. Brain Behav Evol 34:35-42.
10.
Brandstätter R, Kotrschal K (1990): Brain growth patterns in four European cyprinid species (Cyprinidae, Teleostei): roach (Rutilus rutilus), bream (Abramis brama), common carp (Cyprinus carpio) and sabre carp (Pelecus cultratus). Brain Behav Evol 35:195-211.
11.
Buschhüter D, Smitka M, Puschmann S, Gerber JC, Witt M, Abolmaali ND, Hummel T (2008). Correlation between olfactory bulb volume and olfactory function. Neuroimage 42:498-502.
12.
Cadwallader PL (1975): Relationship between brain morphology and ecology in New Zealand Galaxiidae, particularly Galaxias vulgaris (Pisces: Salmoniformes). NZ J Zool 2:35-43.
13.
Castro JL (1993): The shark nursery of Bulls Bay, South Carolina, with a review of the shark nurseries of the southeastern coast of the United States. Environ Biol Fish 38:37-48.
14.
Castro JL (2013): A primer on shark reproduction for aquarists; in Sato K (ed): Proceedings of the International Symposium on Reproduction of Marine Life, Birth of New Life! Investigating the Mysteries of Reproduction. Motobu, Japan, Okinawa Churashima Foundation, pp 52-69.
15.
Cerutti-Pereyra F, Thums M, Austin CM, Bradshaw CJA, Stevens JD, Babcock RC, Pillans RD, Meekan MG (2014): Restricted movements of juvenile rays in the lagoon of Ningaloo Reef, Western Australia - evidence for the existence of a nursery. Environ Biol Fish 97:371-383.
16.
Chapman DD, Corcoran MJ, Harvey GM, Malan S, Shivji MS (2003). Mating behaviour of southern stingrays, Dasyatis americana (Dasyatidae). Environ Biol Fish 68:241-245.
17.
Chapouton P, Jagasia R, Bally-Cuif L (2007): Adult neurogenesis in non-mammalian vertebrates. Bioessays 29:745-757.
18.
Cohen JL, Hueter RE, Organisiak DT (1990): The presence of a porphyropsin-based visual pigment in the juvenile lemon shark (Negaprion brevirostris). Vis Res 30:949-1953.
19.
Cortés E (2000): Life history patterns and correlations in sharks. Rev Fish Sci 8:299-344.
20.
Cortés E (2004): Life history patterns, demography, and population dynamics; in Carrier JF, Musick JA, Heithaus MR (eds): Biology of Sharks and Their Relatives. Boca Raton, pp 449-469.
21.
Dale JJ, Wallsgrove NJ, Popp BN, Holland KN (2011): Nursery habitat use and foraging ecology of the brown stingray Dasyatis lata determined from stomach contents, bulk and amino acid stable isotopes. Mar Ecol Prog Ser 433:221-236.
22.
Deacon TW (1990): Fallacies of progression in theories of brain-size evolution. Int J Primatol 11:193-236.
23.
Dulvy NK, Reynolds JD (1997): Evolutionary transitions among egg-laying, live-bearing and maternal inputs in sharks and rays. Proc Biol Sci 264:1309-1315.
24.
Ekstrom P, Johnsson CM, Ohlin LM (2001): Ventricular proliferation zones in the brain of an adult teleost fish and their relation to neuromeres and migration (secondary matrix) zones. J Comp Neurol 436:92-110.
25.
Engqvist L (2005): The mistreatment of covariate interaction terms in linear model analyses of behavioural and evolutionary ecology studies. Anim Behav 70:967-971.
26.
Fowler J, Cohen L (1990): Practical Statistics for Field Biology. Chichester, Wiley.
27.
Gage FH (2002): Neurogenesis in the adult brain. J Neurosci 22:612-613.
28.
Gardiner JM, Whitney NM, Hueter RE (2015): Smells like home: the role of olfactory cues in the homing behaviour of blacktip sharks, Carcharhinus limbatus. Integr Comp Biol 55:495-506.
29.
Geiger W (1956): Quantitative Untersuchungen über das Gehirn der Knochenfische mit besonder Berücksichtigung seines relative Wachstums. Acta Anat 26:121-163.
30.
Gomahr A, Plazenberger M, Kotrschal K (1992): Density and distribution of external taste buds in cyprinids. Environ Biol Fish 33:1125-134.
31.
Grubbs RD (2010): Ontogenetic shifts in movements and habitat use; in Carrier JC, Musick JA, Heithaus MR (eds): Sharks and Their Relatives II: Biodiversity, Adaptive Physiology, and Conservation. Boca Raton, CRC Press, pp 319-350.
32.
Harahush BK, Hart NS, Collin SP (2014): Ontogenetic changes in retinal ganglion cell distribution and spatial resolving power in the brown-banded bamboo shark Chiloscyllium punctatum (Elasmobranchii). Brain Behav Evol 83:286-300.
33.
Harahush BK, Hart NS, Green K, Collin SP (2009): Retinal neurogenesis and ontogenetic changes in the visual system of the brown-banded bamboo shark Chiloscyllium punctatum (Hemiscyllidae, Elasmobranchii). J Comp Neurol 513:83-97.
34.
Helfman GS, Collette BB, Facey DE (1997). The Diversity of Fishes. Oxford, Blackwell Science.
35.
Hoenig JM, Gruber SH (1990): Life-history patterns in the elasmobranchs: implications for fisheries management; in Pratt HL Jr, Gruber SH, Taniuchi T (eds): Elasmobranchs as Living Resources: Advances in the Biology, Ecology, Systematics, and the Status of the Fisheries - NOAA Technical Report NMFS 90. Seattle, US Department of Commerce, pp 1-16.
36.
Iwaniuk AN, Wylie DRW (2007): Neural specialization for hovering in hummingbirds: hypertrophy of the pretectal nucleu lentiformis mesencephali. J Comp Neurol 500:211-221.
37.
Jacobs LF (2012): From chemotaxis to the cognitive map: the function of olfaction. Proc Natl Acad Sci USA 109(suppl 1):10693-10700.
38.
Jacobsen IP, Bennett MB (2012): Feeding ecology and dietary comparisons among three sympatric Neotrygon (Myliobatidei: Dasyatidae) species. J Fish Biol 80:1589-1594.
39.
Jerison HJ (1973): Evolution of the Brain and Intelligence. New York, Academic Press.
40.
Jirik KE, Lowe CG (2012): An elasmobranch maternity ward: female round stingrays Urobatis halleri use warm restored estuarine habitat during gestation. J Fish Biol 80:1227-1245.
41.
Jobling M (1995): Environmental Biology of Fishes. London, Chapman and Hall.
42.
Johns PR, Easter SS Jr (1977): Growth of the adult goldfish eye. 2. Increase in retinal cell number. J Comp Neurol 176:331-342.
43.
Johnson RH, Nelson DR (1978): Copulation and possible olfaction-mediated pair formation in two species of carcharhinid sharks. Copeia 1978:76-84.
44.
Kajiura SM, Sebastian AP, Tricas TC (2000): Dermal bite wounds as indicators of reproductive seasonality and behaviour in the Atlantic stingray, Dasyatis sabina. Environ Biol Fish 58:23-31.
45.
Kaslin J, Gnaz J, Brand A (2008): Proliferation, neurogenesis and regeneration in the non-mammalian vertebrate brain. Philos Trans R Soc Lond B Biol Sci 363:101-122.
46.
Kearney HL (1914): On the relative growth of the organs and parts of the embryonic and young dogfish (Mustelus canis). Anat Rec 8:271-298.
47.
Kellicott WE (1908): The growth of the brain and viscera in the smooth dogfish (Mustelus canis, Mitchell). Am J Anat 8:319-353.
48.
Kempster RM, Garza-Gisholt E, Egeberg CA, Hart NS, O'Shea OR, Collin SP (2013): Sexual dimorphism of the electrosensory system: a quantitative analysis of nerve axons in the dorsal anterior lateral line nerve of the blue-spotted fantail stingray (Taeniura lymma). Brain Behav Evol 81:226-235.
49.
Kihslinger RL, Lema SC, Nevitt GA (2006): Environmental rearing conditions produce forebrain differences in wild Chinook salmon Oncorhynchus tshawytscha. Comp Biochem Physiol A Mol Integr Physiol 145:145-151.
50.
Kihslinger RL, Nevitt GA (2006): Early rearing environment impacts cerebellar growth in juvenile salmon. J Exp Biol 209:504-509.
51.
Koester DM (1983): Central projections of the octavolateralis nerves of the clearnose skate, Raja eglanteria. J Comp Neurol 221:199-215.
52.
Kolm, N, Gonzalez-Voyer A, Brelin D, Winberg S (2009): Evidence for small scale variation in the vertebrate brain: mating strategy and sex affect brain size and structure in wild brown trout (Salmo trutta). J Evol Biol 22:2524-2531.
53.
Kotrschal K, van Staaden MJ, Huber R (1998): Fish brains: evolution and environmental relationships. Rev Fish Biol Fish 8:373-408.
54.
Last PR, Stevens JD (1994): Sharks and Rays of Australia. Melbourne, CSIRO.
55.
Lema SC, Hodges MJ, Marchetti MP, Nevitt GA (2005): Proliferation zones in the salmon telencephalon and evidence for environmental influence on proliferation rate. Comp Biochem Physiol A Mol Integr Physiol 141:327-335.
56.
Leonard RB, Coggeshall RE, Willis WD (1978): A documentation of an age related increase in neuronal and axonal numbers in the stingray, Dasyatis sabina, Leseuer. J Comp Neurol 179:13-22.
57.
Lessells CM, Boag PT (1987): Unrepeatable repeatabilities: a common mistake. Auk 104:116-121.
58.
Leyhausen C, Kirschbaum F, Szabo T, Erdelen M (1987): Differential growth in the brain of the weakly electric fish, Apteronotus leptorhynchus (Gymnotiformes), during ontogenesis. Part 1 of 2. Brain Behav Evol 30:230-238.
59.
Lisney TJ, Collin SP (2006): Brain morphology in large pelagic fishes: a comparison between sharks and teleosts. J Fish Biol 68:532-554.
60.
Lisney TJ, Bennett MB, Collin SP (2007): Volumetric analysis of sensory brain areas indicates ontogenetic shifts in the relative importance of sensory systems in elasmobranchs. Raffles Bull Zool 14:7-15.
61.
Lisney TJ, Theiss SM, Collin SP, Hart NS (2012): Vision in elasmobranchs and their relatives: 21st century advances. J Fish Biol 80:2024-2054.
62.
Lisney TJ, Yopak KE, Montgomery JC, Collin SP (2008): Variation in brain organization and cerebellar foliation in chondrichthyans: batoids. Brain Behav Evol 72:262-282.
63.
Litherland L, Collin SP, Fritsches KA (2009a): Visual optics and ecomorphology of the growing shark eye: a comparison between deep and shallow water species. J Exp Biol 212:3583-3594.
64.
Litherland L, Collin SP, Fritsches KA (2009b): Eye growth in sharks: ecological implications for changes in retinal topography and visual resolution. Vis Neurosci 26:397-409.
65.
Marchetti MP, Nevitt GA (2003): Effects of hatchery rearing on brain structures of rainbow trout, Oncorhynchus mykiss. Environ Biol Fish 66:9-14.
66.
Maruska KP, Carpenter RE, Fernald RD (2012): Characterization of cell proliferation throughout the brain of the African cichlid fish Astatotilapia burtoni and its regulation by social status. J Comp Neurol 520:3471-3491.
67.
Masuda R (2009): Behavioral ontogeny of marine pelagic fishes with the implications for the sustainable management of fisheries resources. Aqua Biosci Monogr 2:1-56.
68.
McCormick MI, Makey LJ (1997): Post-settlement transition in coral reef fishes: overlooked complexity in niche shifts. Mar Ecol Prog Ser 153:247-257.
69.
Meyer RL (1978): Evidence from thymidine labeling for continuing growth of retina and tectum in juvenile goldfish. Exp Neurol 59:99-111.
70.
Montgomery JC, Bodznick D, Yopak KE (2012): The cerebellum and cerebellum-like structures of cartilaginous fishes. Brain Behav Evol 80:152-165.
71.
Montgomery JC, Sutherland KJW (1997): Sensory development of the Antarctic silverfish Pleuragramma antarcticum: a test for the ontogenetic shift hypothesis. Polar Biol 18:112-115.
72.
New JG (2001): Comparative neurobiology of the elasmobranch cerebellum: theme and variations on a sensorimotor interface. Environ Biol Fish 60:93-108.
73.
Ngwenya A, Patzke N, Spocter MA, Kruger JL, Dell LA, Chawana R, Mazengenya P, Billings BK, Olaleye O, Herculano-Houzel S, Manger PR (2013): The continuously growing central nervous system of the Nile crocodile (Crocodylus niloticus). Anat Rec 296:1489-1500.
74.
Noakes DLG, Godin JJ (1988): Ontogeny of behaviour and concurrent developmental changes in sensory systems in teleost fishes; in Hoar WS, Randall DJ (eds): Fish Physiology 11. San Diego, Academic Press, vol 11b, pp 345-396.
75.
Northcutt RG (1978): Brain organization in the cartilaginous fishes; in Hodgson ES, Mathewson RF (eds): Sensory Biology of Sharks, Skates and Rays. Arlington, Office of Naval Research, pp 117-193.
76.
Nosal AP, Chao Y, Farrara JD, Chai F, Hastings PA (2016): Olfaction contributes to pelagic navigation in a coastal shark. PLoS One 11:e0143758.
77.
Ogawa Y (1968): Morphological transition of the brain components of horse mackerel with their body-growth. Bull Jap Soc Sci Fish 34:11-16.
78.
Oikawa S, Takemori M, Itazawa Y (1992): Relative growth of organs and parts of a marine teleost, the porgy, Pagrus major, with special reference to metabolism-size relationships. Jap J Ichthyol 39:243-249.
79.
Packard A (1972): Cephalopods and fish: limits of convergence. Biol Rev 47:241-307.
80.
Packard A, Wainwright AW (1974): Brain growth of young herring and trout; in Blaxter JHS (ed): The Early Life History of Fish. Berlin, Springer, pp 499-507.
81.
Pardo SA (2006): Local-Scale Resource Partitioning in Shallow-Water Dasyatids from Moreton Bay, Queensland; BS honours thesis, University of Queensland, Brisbane.
82.
Pardo SA, Burgess KB, Teixeira D, Bennett MB (2015): Local-scale resource partitioning by stingrays on an intertidal flat. Mar Ecol Prog Ser 533:205-218.
83.
Parson JM, Fish FE, Nicastro AJ (2011). Turning performance of batoids: limitations of a rigid body. J Exp Mar Biol Ecol 402:12-18.
84.
Pierce SJ, Bennett MB (2010): Validated annual band-pair periodicity and growth parameters of blue-spotted maskray Neotrygon kuhlii from south-east Queensland, Australia. J Fish Biol 75:2490-2508.
85.
Pierce SJ, Pardo SA, Bennett MB (2009): Reproduction of the blue-spotted maskray Neotrygon kuhlii (Myliobatioidei: Dasyatidae) in south-east Queensland, Australia. J Fish Biol 74:1291-1308.
86.
Pierce SJ, Scott-Holland TB, Bennett MB (2011): Community composition of elasmobranch fishes utilizing intertidal sand flats in Moreton Bay, Queensland, Australia. Pac Sci 65:235-247.
87.
Poling KR, Brunjes PC (2000): Sensory deafferentiation and olfactory bulb morphology in the zebrafish and related species. Brain Res 856:135-141.
88.
Popper AN, Hoxter B (1984): Growth of a fish ear. 1. Quantitative analysis of hair cell and ganglion cell proliferation. Hear Res 15:133-142.
89.
Pose-Méndez S, Candal E, Mazan S, Rodríguez-Moldes I (2016a): Genoarchitecture of the rostral hindbrain of a shark: basis for understanding the emergence of the cerebellum at the agnathan-gnathostome transition. Brain Struct Funct 221:1321-1335.
90.
Pose-Méndez S, Candal E, Mazan S, Rodríguez-Moldes I (2016b): Morphogenesis of the cerebellum and cerebellum-like structures in the shark Scyliorhinus canicula: insights on the ground pattern of the cerebellar ontogeny. Brain Struct Funct 221:1691-1717.
91.
Pratt HL, Carrier JC (2001): A review of elasmobranch reproductive behaviour with a case study on the nurse shark, Ginglymostoma cirratum. Environ Biol Fish 60:157-188.
92.
Puzdrowski RL, Gruber S (2009): Morphologic features of the cerebellum of the Atlantic stingray, and their possible evolutionary significance. Integr Zool 4:110-122.
93.
Puzdrowski RL, Leonard RB (1992): Variations in cerebellar morphology of the Atlantic stingray, Dasyatis sabina. Neurosci Lett 135:196-200.
94.
Quinn GP, Keough MJ (2002). Experimental Design and Data Analysis for Biologists. Cambridge, Cambridge University Press.
95.
Reynolds JD, Goodwin NB, Freckleton RP (2002): Evolutionary transitions in parental care and live bearing in vertebrates. Phil Trans R Soc Lond B Biol Sci 357:269-281.
96.
Ridet JM, Bauchot R (1990) Quantitative analysis of the teleost brain: evolutionary and adaptive features of encephalization. 2. Primary brain subdivisions (in French). J Hirnforsch 31:433-458.
97.
Rodríguez-Moldes I, Ferreiro-Galve S, Carrera I, Sueiro C, Candal E, Mzan S, Anadón R (2008): Development of the cerebellar body in sharks: spatiotemporal relations of Pax6 expression, cell proliferation and differentiation. Neurosci Lett 432:105-110.
98.
Rosenberger LJ (2001). Pectoral fin locomotion in batoid fishes: undulation versus oscillation. J Exp Biol 204:379-394.
99.
Salas CA, Yopak KE, Warrington RE, Hart NS, Potter IC, Collin SP (2015): Ontogenetic shifts in brain scaling reflect behavioral changes in the life cycle of the pouched lamprey Geotria australis. Front Neurosci 9:251.
100.
Sale PF (ed) (2002): Coral Reef Fishes: Dynamics and Diversity in a Complex Ecosystem. San Diego, Academic Press.
101.
Sebens KP (1987): The ecology of indeterminate growth in animals. Ann Rev Ecol Syst 18:371-407.
102.
Sibbing FA, Uribe R (1984): Regional specializations in the oro-pharyngeal wall and food processing in the carp (Cyprinus carpio L.). Neth J Zool 35:377-422.
103.
Sisneros JA, Tricas TC (2002): Ontogenetic changes in the response properties of the peripheral electrosensory system in the Atlantic stingray (Dasyatis sabina). Brain Behav Evol 59:130-140.
104.
Sisneros JA, Tricas CA, Luer CA (1998): Response properties and biological function of the skate electrosensory system during ontogeny. J Comp Physiol A 183:87-99.
105.
Smeets WJAJ (1998): Cartilaginous fishes; in Nieuwenhuys R, Ten Donkelaar HJ, Nicholson C (eds): The Central Nervous System of Vertebrates. Berlin, Springer, pp 551-654.
106.
Smeets WJAJ, Nieuwenhuys R, Roberts BL (1983): The Central Nervous System of Cartilaginous Fishes. Berlin, Springer.
107.
Snover ML (2008): Ontogenetic habitat shifts in marine organisms: influencing factors and the impact of climate variability. Bull Mar Sci 83:53-67.
108.
Stacey N (2003): Hormones, pheromones and reproductive behavior. Fish Physiol Biochem 28:229-235.
109.
Stacey N, Sorensen P (2009): Hormonal pheromones in fish; in Plaff DW, Arnold AP, Fahrbach SE, Etgen AM, Rubin RT (eds): Hormones Brain and Behavior, ed 2. San Diego, Academic Press, pp 639-681.
110.
Striedter GF (2005): Principles of Brain Evolution. Sunderland, Sinauer.
111.
Tomoda H, Uematsu K (1996): Morphogenesis of the brain in larval and juvenile Japanese eels, Anguilla japonica. Brain Behav Evol 47:33-41.
112.
Toyoda J, Uematsu K (1994): Brain morphogenesis of the red sea bream, Pagrus major (Teleostei). Brain Behav Evol 44:324-337.
113.
Tricas TC, Michael SW, Sisneros JA (1995). Electrosensory optimization to conspecific phasic signals for mating. Neurosci Lett 202:129-132.
114.
Voorhoeve JJ (1917): Over den bouw van de kleine hersenender Plagiostomen; PhD thesis, University of Amsterdam, Amsterdam.
115.
Wagner H-J (2001): Brain areas in abyssal demersal fish. Brain Behav Evol 57:301-316.
116.
Wagner H-J (2003): Volumetric analysis of brain areas indicates a shift in sensory orientation during development in the deep-sea grenadier Coryphaenoides armatus. Mar Biol 142:791-797.
117.
Wearmouth VJ, Sims DW (2008): Sexual segregation in marine fish, reptiles, birds and mammals: behaviour patterns, mechanisms and conservation implications. Adv Mar Biol 54:107-170.
118.
Werner EE, Hall DJ (1988): Ontogenetic habitat shifts in bluegill: the foraging rate-predation risk trade-off. Ecol 69:1352-1366.
119.
Wetherbee BM, Cortés E (2004): Food consumption and feeding habits; in Carrier JF, Musick JA, Heithaus MR (eds): Biology of Sharks and Their Relatives. Boca Raton, pp 225-246.
120.
Wooton RJ (ed) (1998): Ecology of Teleost Fishes, ed 2. Dordrecht, Kluwer Academic.
121.
Yopak KE (2012): Neuroecology of cartilaginous fishes: the functional implications of brain scaling. J Fish Biol 80:1968-2023.
122.
Yopak KE, Frank LR (2009): Brain size and brain organization of the whale shark, Rhincodon typus, using magnetic resonance imaging. Brain Behav Evol 74:121-142.
123.
Yopak KE, Lisney TJ (2012): Allometric scaling of the optic tectum in cartilaginous fishes. Brain Behav Evol 80:108-126.
124.
Yopak KE, Lisney TJ, Collin SP (2015): Not all sharks are “swimming noses”: variation in olfactory bulb size in cartilaginous fishes. Brain Struct Funct 220:1127-1143.
125.
Yopak KE, Lisney TJ, Darlington RB, Collin SP, Montgomery JC, Finlay BL (2010): A conserved pattern of brain scaling from sharks to primates. Proc Natl Acad Sci USA 107:12946-12951.
126.
Yopak, KE, Lisney TJ, Collin SP, Montgomery JC (2007): Variation in brain organization and cerebellar foliation in chondrichthyans: sharks and holocephalans. Brain Behav Evol 69:280-300.
127.
Yopak KE, Montgomery JC (2008): Brain organization and specialization in deep-sea chondrichthyans. Brain Behav Evol 71:287-304.
128.
Zar JH (2010): Biostatistical Analysis, ed 5. Upper Saddle River, Prentice Hall.
129.
Zaunreiter M, Junger H, Kotrschal K (1991): Retinal morphology of cyprinid fishes: a quantitative histological study of ontogenetic changes and interspecific variation. Vision Res 31:383-394.
130.
Zupanc GK (2006): Neurogenesis and neuronal regeneration in the adult fish brain. J Comp Physiol A Neuroethol Sens Neural Behav Physiol 192:649-670.
131.
Zupanc GK, Horschke I (1995): Proliferation zones in the brain of adult gymnotiform fish: a quantitative mapping study. J Comp Neurol 353:213-233.
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