Hostname: page-component-78c5997874-4rdpn Total loading time: 0 Render date: 2024-11-17T20:15:51.505Z Has data issue: false hasContentIssue false

Variability of Segment Number and Regeneration in Spiochaetopterus Solitarius. Comparison with S. Costarum (Polychaeta: Chaetopteridae)

Published online by Cambridge University Press:  11 May 2009

Michel R. Bhaud
Affiliation:
Observatoire Océanologique de Banyuls, Université Pierre & Marie Curie Laboratoire Arago, BP 44, F-66651 Banyuls-sur-Mer, France

Extract

The variability in the number of segments in anterior (A) and median (B) regions of adult-size specimens Spiochaetopterus solitarius (Chaetopteridae), was examined in the present study. Variability of region A is considered in relation to the number of specialized setae in A4, which varies from 2 to 4; variability of region B is observed as a decrease in the number of segments during a limited part of the year. A process involving autotomy and regeneration has been advanced to explain the variability in the number of segments in region B. It appears that, once the number of segments in region B reaches a certain level, which is close to 30, the animal divides within region B, and the missing parts of each section are then regenerated. The maximum number of segments in region B may be considered to be species specific and used as a discriminative feature in the genus. It is suggested that regeneration does not reflect asexual multiplication per se, but provides a means to facilitate the supply of energy to region B, which is responsible for bringing the products of the sexual organs to maturity. Consequently, regeneration is considered to complement sexual reproduction, facilitating the availability of energy to region B for reproduction. Implications of this variability have been examined by comparing S. solitarius and S. costarum, two species closely related by their morphology, sympatry and syntopy.

Type
Research Article
Copyright
Copyright © Marine Biological Association of the United Kingdom 1998

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Abbott, D.P. & Reish, D.J., 1980. Polychaeta: the marine annelid worms. In lntertidal invertebrates of California (ed. R.H., Morris et al), pp. 448489. Stanford: Stanford University Press.Google Scholar
Barnes, R.D., 1964. Tube-building and feeding in the chaetopterid polychaete, Spiochaetopterus oculatus. Biological Bulletin. Marine Biological Laboratory, Woods Hole, 127, 397412.CrossRefGoogle Scholar
Barnes, R.D., 1965. Tube-building and feeding in chaetopterid polychaetes. Biological Bulletin. Marine Biological Laboratory, Woods Hole, 129, 217233.CrossRefGoogle Scholar
Bellan, G., 1964. Contribution à l'étude systématique, bionomique et écologique des Annélides Polychètes de la Méditerranée. Recueil des Travaux de la Station Marine d'Endoume, 49, 1371.Google Scholar
Bentley, M.G. & Pacey, A. A., 1992. Physiological and environmental control of reproduction in Polychaetes. Oceanography and Marine Biology. Annual Review, 30, 443481.Google Scholar
Bhaud, M., 1980. Les soies des Chaetopteridae. In Microscopie électronique à balayage. Méthodes d'étude en biologie, pp. 9598. Paris: Librairie Arnette, Ed.Google Scholar
Bhaud, M., 1988. Change in setal pattern during early development of Eupolymnia nebulosa (Polychaeta: Terebellidae) grown in simulated natural conditions. Journal of the Marine Biological Association of the United Kingdom, 68, 677687.Google Scholar
Bhaud, M., 1998. The species of the genus Spiochaetopterus (Polychaeta, Chaetopteridae) in the Atlantic-Mediterranean Biogeographic area. Sarsia, in press.Google Scholar
Bhaud, M., Cazaux, C., Watson-Russell, C. & Lefèvre, M., 1988. Description and identification of Polychaete larvae; their implications in current biological problems. Oceanis, 13, 596753.Google Scholar
Bhaud, M., Lastra, M. & Petersen, M.E., 1994. Redescription of Spiochaetopterus solitarius (Rioja, 1917) from Atlantic and Mediterranean populations, with notes on tube structure and comments on the generic status of the species. Ophelia, 40, 115133.Google Scholar
Blake, J.A., 1995. Family Chaetopteridae Malmgren, 1867. In Taxonomic atlas of the benthic fauna of the Santa Maria Basin and western Santa Barbara Channel. Vol. 6. The Annelida. Part 3 (ed. J.A., Blake et al.), pp. 233251. Santa Barbara, California: Santa Barbara Museum of Natural History.Google Scholar
Cha, J.H., 1994. Etude expérimentale du cycle de vie d'Eupolymnia nebulosa (Polychète Terebellidae): reproduction et recrutement benthique. Thèse de Doctorat, Université Paris VI (Pierre et Marie Curie), France.Google Scholar
Crossland, C., 1904. The Polychaeta of the Maldive Archipelago from the collection made by J. Stanley Gardiner in 1899. Proceedings of the Zoological Society of London, 1, 270289.Google Scholar
Day, J.H., 1967. A monograph on the Polychaeta of southern Africa. Part 2. Sedentaria, pp. 459878. London: Trustees of the British Museum (Natural History).Google Scholar
Fauchald, K., 1977. The Polychaete worms. Definitions and keys to the orders, families and genera. Los Angeles: Natural History Museum of Los Angeles County. [Science Series, no. 28.]Google Scholar
Fauvel, P., 1926. Sur les Chétoptériens. Bulletin de la Société Zoologique de Prance, 51, 307314.Google Scholar
Fauvel, P., 1927. Polychètes sédentaires. Addenda aux errantes, archiannélides, myzostomaires. Faune de France, 16, 1494.Google Scholar
Giangrande, A. & Petraroli, A., 1994. Observations on reproduction and growth of Sabella spallanzanii (Polychaeta, Sabellidae) in the Mediterranean Sea. Mémoires du Museum National d'Histoire Naturelle, Paris, 162, 5156.Google Scholar
Gilbert, K.M., 1984. Family Chaetopteridae Malmgren, 1867. In Taxonomic guide to the polychaetes of the northern Gulf of Mexico. Final report to the Minerals Management Service Contract 14–12–001–29091, vol. II (ed. J.M., Uebelacker and P.G., Johnson), pp. 11·1–11·13. Mobile Alabama: Vittor & Associates, Inc.Google Scholar
Gitay, A., 1969. A contribution to the revision of Spiochaetopterus (Chaetopteridae, Polychaeta). Sarsia, 37, 920.CrossRefGoogle Scholar
Gravier, C., 1909. Sur la régénération des extrémités du corps chez le Chétoptère et chez la Marphyse sanguine. Annales de Sciences Naturelles (Zoologie), Paris, series 9, IX, 129155.Google Scholar
Imajima, M. & Hartman, O., 1964. The polychaetous annelids of Japan. Occasional papers of the Allan Hancock Foundation. Los Angeles, 26, 1452.Google Scholar
Ivanov, P., 1908. Die regeneration des vorderen und des hinteren Körperendes bei Spirographis spallanzanii. Zeitschrift für Wissenschaftliche Zoologie, 91, 511558.Google Scholar
Kiortsis, V. & Moraitou, M., 1965. Factors of regeneration in Spirographis spallanzanii. In Regeneration in animals and related problems (ed. V., Kiortsis and H.A.L., Trampush), pp. 250261. Amsterdam: North Holland Press.Google Scholar
Kudenov, J., 1975. Sedentary polychaetes from the Gulf of California, Mexico. Journal of Natural History, 9, 205231.Google Scholar
Mikkelsen, P.S. & Virnstein, R.W., 1982. An illustrated glossary of polychaete terms. Fort Pierce, Florida: Harbor Branch Foundation, Inc. [Technical Report, no. 46.]Google Scholar
Nishi, E., 1996. Asexual reproduction in the colonial polychaete Spiochaetopterus costarum costarum (Claparède, 1868) (Annelida: Chaetopteridae) in Okinawa, Japan. Natural History Research, 4, 3740.Google Scholar
Potts, F.A., 1914. Polychaeta from the N.E. Pacific: the Chaetopteridae. With an account of the phenomenon of asexual reproduction in Phyllochaetopterus and the description of two new species of Chaetopteridae from the Atlantic. Proceedings of the Zoological Society, London, 1914, 955994.Google Scholar
Rey, L.R. & Mora, J., 1984. Contribucion al estudio de la construction del tubo del Anelido poliqueto Spiochaetopterus costarum (Claparède, 1870). In Simposio iberico de Estudos do benthos marinho. Actas do IV° Simposio iberico de Estudos do benthos marinho, Lisboa, Portugal, 21–25 Maio 1984, pp. 18.Google Scholar
Rioja, E., 1917. Nota sobre algunos anelidos interesantes de Santander. Boletin de la Real Sociedad Española de Historia Natural, 17, 211228.Google Scholar
Russell, D.E., 1987. Paedampharete acutiseries, a new genus and species of Ampharetidae (Polychaeta) from the North Atlantic Hebble area, exhibiting progenesis and broad intraspecific variation. Bulletin of the Biological Society of Washington, 7, 140151.Google Scholar
Watson, A.T., 1906. A case of regeneration in polychaete worms. Proceedings of the Royal Society B, 77, 332336.Google Scholar