Social organization and sexual pattern in the Mediterranean parrotfish Sparisoma cretense (Teleostei: Scaridae)

  title={Social organization and sexual pattern in the Mediterranean parrotfish Sparisoma cretense (Teleostei: Scaridae)},
  author={Massimo de Girolamo and Marta Scaggiante and Maria B Rasotto},
  journal={Marine Biology},
Abstract We examined the social organization and reproductive pattern of a population of Sparisoma cretense L. at Lampedusa Island (Italy). During the breeding season (July to September) individuals occur either in territorial or in non-territorial groups, which quantitatively differ with respect to use of space, sex-ratio and sexual activity. Territorial groups consist of one male plus one to three females, whereas in non-territorial groups as many as 54 fish share a common area. Among non… Expand
Spatial patterns in reproductive traits of the temperate parrotfish Sparisoma cretense
It is suggested that high quality spawning sites are important for the reproductive success of both types of fish and the complexity of this relationship between social structure and habitat might impact the populations’ productivity and could influence the success of marine protected areas for this species. Expand
Effects of social organization on the feeding of the striped parrotfish, Scarus iseri
Parrotfishes contribute to important reef processes through their feeding and sociobiology may influence their relative ecosystem impact, with territorial and terminal individuals in both social groups more involved in the detrital food web and stationary groups contributing to a greater extent on algal removal. Expand
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An investigation of the reproductive biology of the green humphead parrotfish (Bolbometopon muricatum) from three areas in the Western Province of the Solomon Islands revealed that B. muricatumExpand
Frequency of Functional Sex Change in Two Populations of Dascyllus Melanurus Conforms to a Prediction from Sex Allocation Theory
The size distributions of fish with mixed-stage gonads differed between the two populations in a manner that was predicted from the theories of sex allocation and mating systems, which indicated that functional sex change was present and was more frequent than in the former population. Expand
Occurrence of the Mediterranean parrotfish Sparisoma cretense (Perciformes: Scaridae) in south-eastern Apulia (south-east Italy)
  • P. Guidetti, F. Boero
  • Geography
  • Journal of the Marine Biological Association of the United Kingdom
  • 2001
The Mediterranean parrotfish Sparisoma cretense is reported for the first time along the south-eastern coasts of Apulia (Ionian Sea, south-east Italy) and the possibility that climatic changes occurring in the Mediterranean basin (i.e. water warming) would be involved in the spreading of the species outside its typical distribution range is discussed. Expand
Spawning aggregation behavior and reproductive ecology of the giant bumphead parrotfish, Bolbometopon muricatum, in a remote marine reserve
The mating system and spawning aggregation behavior of Bolbometopon from the protected, relatively pristine population at Wake Atoll provides crucial baselines of population density, sex ratio composition, and productivity of a spawning aggregation site from an oceanic atoll. Expand
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Temporal Fluctuations and Settlement Patterns of Native and Lessepsian Herbivorous Fishes on the Lebanese Coast (Eastern Mediterranean)
S. rivulatus was the most tolerant and adaptable species, able to settle on a large range of substrates and habitats, including rock pools, muddy harbours and sea grass beds, and has probably replaced S. salpa on the coast of Lebanon, being more competitive than the native sparid. Expand
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Behavioral observations were made during SCUBA excursions out of the PRINUL underwater laboratory, off the west coast of Puerto Rico. Most of the work involved four species of parrotfishes, SparisomaExpand
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Warner, Robert R., and D. Ross Robertson. Sexual Patterns in the Labroid Fishes of the Western Caribbean, I: The Wrasses (Labridae). Smithsonian Contributions to Zoology, number 254, 27 pages, 11Expand
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Criteria for the Diagnosis of Hermaphroditism in Fishes
The strongest indicators of protandry are transitional individuals whose gonads contain degenerating testicular tissue and developing ovarian tissue, and experimental production of transitional or sex-reversed individuals through manipulation of the social system may identify both protogyny and prot andry. Expand
6 The Functional Morphology of Teleost Gonads
This chapter discusses the functional morphology of teleost gonads and a two cell-type model involving thecal and granulosa cell layers has been proposed for the production of these two steroids for the first time in lower vertebrates. Expand
Cellular and dynamic aspects of oocyte growth in teleosts
Teleosts offer examples of virtually every conceivable type of ovarian physiology and provide a wealth of experimental material for exploring the cellular and hormonal mechanisms which regulate oocyte recruitment and growth throughout ovarian recrudescence. Expand
Reproduction in Reef Fishes