Ichthyological Research

, Volume 57, Issue 3, pp 231–239

Phylogeny and character evolution in the Indo-Pacific genus Ctenogobiops (Gobiiformes: Gobiidae)

  • Christine E. Thacker
  • Andrew R. Thompson
  • Thomas C. Adam
  • Jen-Ping Chen
Full Paper

Abstract

Ctenogobiops is a genus of Indo-Pacific gobies that form obligate, mutualistic associations with shrimp in the genus Alpheus. This study provides a molecular phylogenetic analysis of eight Ctenogobiops species: C. aurocingulus, C. crocineus, C. feroculus, C. formosa, C. maculosus, C. mitodes, C. tangaroai, and C. tongaensis. We recover two clades within the genus, one consisting of C. feroculus and C. aurocingulus, the second including the remaining species arrayed as follows: (C. tongaensis (C. mitodes (C. formosa (C. maculosus (C. crocineus, C. tangaroai))))). Recovery of C. maculosus and C. crocineus as distinct taxa suggests that these species are not synonymous, although sampling in this study is limited. Species of Ctenogobiops are morphologically very similar to each other, with generally consistent meristic character states present throughout the genus. Recognition of species is based primarily on slight variations in color pattern, shape of the dorsal fin, and size of the gill opening. Comparison of our specimens of C. mitodes with accounts of C. pomastictus confirms that color pattern variations and lateral scale counts are more reliable indicators of species identity than relative dorsal fin spine length, particularly for smaller specimens. We evaluate the distribution of morphological characters in the context of the new phylogenetic hypothesis, and provide a summary of distinguishing characters for Ctenogobiops species. In this case, as in other instances of diverse reef-dwelling fish taxa, molecular data are ideal for inferring phylogenetic relationships, whereas morphological data remain the most expedient way to identify species.

Keywords

Shrimp goby Morphology Coral reef 

References

  1. Allen G, Steene R, Humann P, Deloach N (2003) Reef fish identification: Tropical Pacific. New World Publications, Jacksonville, FloridaGoogle Scholar
  2. Huelsenbeck JP, Ronquist F (2001) MRBAYES: Bayesian inference of phylogeny. Bioinformatics 17:754–755CrossRefPubMedGoogle Scholar
  3. Karplus I (1987) The association between gobiid fishes and burrowing alpheid shrimps. Ocn Mar Biol Ann Rev 25:507–562Google Scholar
  4. Karplus I, Vercheson A (1978) A method for collecting live alpheid shrimp and their symbiotic gobiid fish partners. Crustaceana 34:220–222CrossRefGoogle Scholar
  5. Karplus I, Szlep R, Tsurnamal M (1981) Goby–shrimp partner specificity. I. Distribution in the northern Red Sea and partner specificity. J Exp Mar Biol Ecol 51:1–19Google Scholar
  6. Karplus I, Thompson AR (2010) The partnership between gobiid fishes and burrowing alpheid shrimps. In: Patzner RA, Van Tassell JL, Larson HK, Kapoor BG (eds) The biology of gobies. Science Publishers, Inc., New HampshireGoogle Scholar
  7. Lubbock R, Polunin NVC (1977) Notes on the Indo-West Pacific genus Ctenogobiops (Teleostei: Gobiidae) with descriptions of three new species. Rev Suisse Zool 84:505–514PubMedGoogle Scholar
  8. Myers RF (1999) Micronesian reef fishes: a comprehensive guide to the coral reef fishes of Micronesia, 3rd edn. Coral Graphics, BarrigadaGoogle Scholar
  9. Randall JE, Shao K-T, Chen J-P (2003) A review of the Indo-Pacific gobiid fish genus Ctenogobiops, with descriptions of two new species. Zool Stud 42:506–515Google Scholar
  10. Randall JE, Shao K-T, Chen J-P (2007) Two new shrimp gobies of the genus Ctenogobiops (Perciformes: Gobiidae), from the Western Pacific. Zool Stud 46:26–34Google Scholar
  11. Ronquist F, Huelsenbeck JP (2003) MRBAYES 3: Bayesian phylogenetic inference under mixed models. Bioinformatics 19:1572–1574CrossRefPubMedGoogle Scholar
  12. Syms C, Jones GP (2004) Habitat structure, disturbance, and the composition of sand-dwelling goby assemblages in a coral reef lagoon. Mar Ecol Prog Ser 268:221–230CrossRefGoogle Scholar
  13. Thacker CE (2004) Phylogeny and species boundaries in the gobiid genus Gnatholepis (Teleostei: Perciformes). Zool J Linn Soc 142:573–582CrossRefGoogle Scholar
  14. Thompson AR (2004) Habitat and mutualism affect the distribution and abundance of a shrimp-associated goby. Mar Freshw Res 55:105–113CrossRefGoogle Scholar
  15. Thompson AR (2005) Dynamics of demographically open mutualists: immigration, intraspecific competition, and predation impact goby populations. Oecologia 143:61–69CrossRefPubMedGoogle Scholar
  16. Thompson AR, Thacker CE, Shaw EY (2005) Phylogeography of marine mutualists: parallel patterns of genetic structure between obligate goby and shrimp partners. Mol Ecol 14:3557–3572CrossRefPubMedGoogle Scholar
  17. Yanagisawa Y (1978) Studies on the interspecific relationship between gobiid fish and snapping shrimp. I. Gobiid fishes associated with snapping shrimps in Japan. Publ Seto Mar Biol Lab XXIV(4/6):269–325Google Scholar

Copyright information

© The Ichthyological Society of Japan 2010

Authors and Affiliations

  • Christine E. Thacker
    • 1
  • Andrew R. Thompson
    • 1
    • 4
  • Thomas C. Adam
    • 2
  • Jen-Ping Chen
    • 3
  1. 1.Vertebrates–IchthyologyNatural History Museum of Los Angeles CountyLos AngelesUSA
  2. 2.Department of Ecology, Evolution and Marine BiologyUniversity of CaliforniaSanta BarbaraUSA
  3. 3.Taiwan Ocean Research InstituteTaipeiTaiwan, ROC
  4. 4.NOAA Fisheries ServiceSouthwest Fisheries Science CenterLa JollaUSA

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