Abstract
Several growth hypotheses have been tested to investigate why males of the sequential hermaphrodite, Mediterranean rainbow wrasse, Coris julis (Linnaeus, 1758), are relatively larger than females of the same age. Individual growth trajectories were estimated to test these hypotheses. A good linear relationship between otolith size and body size was observed (r 2 = 0.71, n = 609), thus, past somatic growth of any specific fish can be inferred from the longitudinal data described by the width of annual increments in the otolith. These data were successfully analyzed by a non-linear mixed-effect model (von Bertalanffy growth model) using a Bayesian approach. The results obtained suggest that Mediterranean rainbow wrasse secondary males are relatively larger than females because 1) fish that change sex are already the larger individuals in their age group (specifically those with higher growth rate, k secondary males = 0.199 and k females = 0.161) and 2) they experience a growth spurt after sex change. The differences in growth observed in this species and in other protogynous hermaphrodites could be related to differences in social organization, which, in turn, are related to differences in the sex change mechanisms.
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References
Adams S (2003) Morphological ontogeny of the gonad of three plectropomid species through sex differentiation and transition. J Fish Biol 63:22–36
Adams S, Williams AJ (2001) A preliminary test of the transitional growth spurt hypothesis using the protogynous coral trout Plectropomus maculatus. J Fish Biol 59:183–185
Alonso-Fernández A, Alós J, Grau A, Domínguez-Petit R, Saborido-Rey F (2011). The use of histological techniques to study the reproductive biology of the Mediterranean fishes Coris julis, Serranus scriba and Diplodus annularis. Mar Coast Fish: Dynam Manag Ecosys Sci 3(1):145–159. doi:10.1080/19425120.2011.556927
Cardinale M, Colloca F, Ardizzone GD (1998) Growth and reproduction of Xyrichthys novacula (Pisces: Labridae) in the Mediterranean Sea. Sci Mar 62:193–201
Charnov EL, Skuladottir U (2000) Dimensionless invariants for the optimal size (age) of sex change. Evol Ecol Res 2:1067–1071
Edeline E, Carlson SM, Stige LC et al (2007) Trait changes in a harvested population are driven by a dynamic tug-of-war between natural and harvest selection. Proc Natl Acad Sci USA 104:15799–15804
Francis RC, Barlow GW (1993) Social control of primary sex differentiation in the Midas cichlid. Proc Natl Acad Sci USA 90:10673–10675
Ghiselin MT (1969) Evolution of hermaphroditism among animals. Q Rev Biol 44:189–208
Gordoa A, Moli B, Raventós N (2000) Growth performance of four wrasse species on the north-western Mediterranean coast. Fish Res 45:43–50
Helser TE, Lai HL (2004) A Bayesian hierarchical meta-analysis of fish growth: with an example for North American largemouth bass, Micropterus salmoides. Ecol Modell 178:399–416
Helser TE, Stewart IJ, Lai HL (2007) A Bayesian hierarchical meta-analysis of growth for the genus Sebastes in the eastern Pacific Ocean. Can J Fish Aquat Sci 64:470–485
Jones CM (2000) Fitting growth curves to retrospective size-at-age data. Fish Res 46:123–129
Lejeune P (1987) The effect of local stock density on social behaviour and sex change in the Mediterranean labrid Coris julis. Environ Biol Fishes 18:135–141
Linde M, Palmer M (2008) Testing Allsop and West’s size at sex change invariant within a fish species: a spurious ratio or a useful group descriptor? J Evol Biol 21:914–917
Morales-Nin B, Panfili J (2005) Seasonality in the deep sea and tropics revisited: what can otoliths tell us? Mar Freshwater Res 56:585–598
Pilling GM, Kirkwood GP, Walker SG (2002) An improved method for estimating individual growth variability in fish, and the correlation between von Bertalanffy growth parameters. Can J Fish Aquat Sci 59:424–432
Reinboth R (1975) Spontaneous and hormone-induced sex-inversion in wrasses (Labridae). Pubbl Staz Zool Napoli 39:550–573
Reinboth R, Bnrusle-Sicard S (1997) Histological and ultrastructural studies on the effects of hCG on sex inversion in the protogynous teleost Coris julis. J Fish Biol 51(4):738–749
Rohlf FJ (2007) TPS Software Series. Department of Ecology and Evolution, State University of New York, Stony Brook, USA
Ross RM (1987) Sex change linked growth acceleration in a coral reef fish, Thalassoma duperrey. J Exp Zool 244:455–461
Ross RM (1990) The evolution of sex change mechanism in fishes. Environ Biol Fishes 29:81–93
Secor DH, Dean JM, Campana SE (1995) Recent developments in fish otolith research. Belle W (ed) Baruch Library in Marine Sciences Book No. 19. University of South Carolina Press, Columbia
Victor BC (1987) The mating system of the Caribbean rosy razorfish, Xyrichthys martinicensis. Bull Mar Sci 40:152–160
Walker SPW, McCormick MI (2004) Otolith-check formation and accelerated growth associated with sex change in an annual protogynous tropical fish. Mar Ecol Prog Ser 266:201–212
Walker SPW, Ryen CA, McCormick MI (2007) Rapid larval growth predisposes sex change and sexual size dimorphism in a protogynous hermaphrodite, Parapercis snyderi Jordan & Starks 1905. J Fish Biol 71:1347–1357
Warner RR (1988) Sex change in fishes. Hypothesis, evidence and objections. Environ Biol Fishes 22:81–90
Zhang ZY, Hamagami F, Wang LJ et al (2007) Bayesian analysis of longitudinal data using growth curve models. Int J Behav Dev 31:374–383
Zhang ZN, Lessard J, Campbell A (2009) Use of Bayesian hierarchical models to estimate northern abalone, Haliotis kamtschatkana, growth parameters from tag-recapture data. Fish Res 95:289–295
Acknowledgements
We thank to N. Jaume, E. Ceballos and I. Álvarez for their assistance during otolith extraction. This work has been financed by the Spanish Ministry of Education and Science (project ROQUER CTM2005-00283). M. Linde was partially supported by “Direcció General de Recerca, Desenvolupament Tecnològic i Innovació” (“Conselleria d’Economia, Hisenda i Innovació”). J. Alós was supported by a FPI fellowship (MICINN).
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Linde, M., Palmer, M. & Alós, J. Why protogynous hermaphrodite males are relatively larger than females? Testing growth hypotheses in Mediterranean rainbow wrasse Coris julis (Linnaeus, 1758). Environ Biol Fish 92, 337–349 (2011). https://doi.org/10.1007/s10641-011-9844-9
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DOI: https://doi.org/10.1007/s10641-011-9844-9