Skip to main content Accessibility help
×
Home

Ultrastructural studies of the elytra of Pholoe minuta (Annelida: Polychaeta) with special reference to functional morphology

  • P. Heffernan (a1)

Abstract

It has been suggested by Pettibone (1953) and Lwebuga-Musaka (1970) that the elytra of scaleworms may function in respiration, not as the sites of gaseous exchange, but rather the means by which respiratory water currents were created over the dorsum. A role in sensory perception was also postulated (Pettibone, 1953). However, no detailed morphological study accompanied this work. To date the scales of only a few polychaete species have been examined ultrastructurally, and these studies have focused mostly on cuticular features (Anton-Erxleben, 1977, 1981a, b). Considerable attention has been focused on the bioluminescent properties of the elytra of the scaleworm, Harmothoe lunulata (Delle Chiaje) (see Bassot, 1979; Nicholas et al. 1981, 1982). Other morphological features of Pholoe minuta studied at the ultrastructural level include gametogenic (Heffernan & Keegan, 1988a) and larval (Heffernan & Keegan, 1988b) stages as well as the digestive tract (Heffernan, 1988). There are several reports on the ultrastructure of polychaete gills (Storch & Welsch, 1972; Spies, 1973; Storch & Alberti, 1978; Menendez et al., 1984; Storch & Gaill, 1986). These works have recently been reviewed by Gardiner (1988). This study describes the fine structure of the scales of Pholoe minuta and the features illustrated here are in agreement with a role in respiration and sensory perception.

Copyright

References

Hide All
Anton-Erxleben, F., 1977. Ein beitrag zur ultrastruktur der Elytrenoberflachen der Aphroditidae, Polynoidae and Sigalionidae (Polychaeta, Errantia Nereimorpha) Mitterlungen aus dem Hamburgischen Zoologischen Museum und Institut, 74, 3144.
Anton-Erxleben, F., 1981a. Investigations of the cuticle of Polychaete elytrae using energy dispersive x-ray analysis. Helgoländer Meeresuntersuchungen, 34, 439450.
Anton-Erxleben, F. 1981b. Vergleichende Untersuchungen zur Ultrastruktur der Elytrenoberglachen der Aphroditidae, Polynoidae, Sigalionidae und Polydonlidae (Polychaeta). Dissertation, University of Hamburg.
Bancroft, J. & Stevens, A., 1977. Theory and Practice of Histological Techniques. Edinburgh: Churchill Livingstone.
Baskin, D., 1971. Fine structure functional organization and supportive role of neuroglia in Nereis. Tissue and Cell, 3, 579588.
Bassot, J.-M, 1979. Sites actifs et facilitation dans trois systemes bioluminescents. Archives de Zoologie Expérimentale et Générale, 120, 524.
Dhainaut-Courtois, N. & Golding, D.W., 1988. Nervous system. In The Ultrastructure of Polychaeta, vol. 4. Microfauna Marina (ed. W., Westheide and C.O., Hermans), pp. 89110. Stuttgart: Gustav Fisher Verlag.
Gardiner, S.L. 1988. Respiratory and feeding appendages. In The Ultrastructure of Polychaeta, vol. 4. Microfauna Marina (ed. W., Westheide and C.O., Hermans), pp. 3743. Stuttgart: Gustav Fisher Verlag.
Golding, D.W. & May, B.A., 1982. Duality of secretory inclusions in neurones – ultrastructure of corresponding sites of release in invertebrate nervous systems. Acta Zoologica, 63, 229238.
Heffernan, P., 1985a. The Biology of Pholoe minuta (Fabricius) (Polychaeta: Sigalionidae) in Galway Bay, with Special Reference to the Ultrastructure and Histochemistry of Selected Morphological Features. PhD Thesis, National University of Ireland.
Heffernan, P., 1985b. Demography of Pholoe minuta (Polychaeta: Sigalionidae) in Galway Bay, west coast of Ireland, with special reference to settlement and recruitment patterns. Marine Biology, 84, 323329.
Heffernan, P., 1988. Ultrastructural and histochemical studies of the digestive system of Pholoe minuta (Polychaeta: Sigalionidae). Journal of the Marine Biological Association of the United Kingdom, 68, 447464.
Heffernan, P. & Keegan, B.F., 1988a. Quantitative and ultrastructural studies on the reproductive biology of the polychaete Pholoe minuta in Galway Bay. Marine Biology, 99, 203214.
Heffernan, P. & Keegan, B.F., 1988b. The larval development of Pholoe minuta (Polychaeta: Sigalionidae) in Galway Bay, Ireland. Journal of the Marine Biological Association of the United Kingdom, 68, 339350.
Heffernan, P., O'connor, B. & Keegan, B.F., 1983. Population dynamics and reproductive cycles of Pholoe minuta (Polychaeta: Sigalionidae) in Galway Bay. Marine Biology, 73, 285291.
Humphreys, C. & Porter, K., 1976. Collagenous and other organizations in mature annelid cuticle and epidermis. Journal of Morphology, 149, 3351.
Kristensen, E., 1983. Ventilation and oxygen uptake by three species of Nereis (Annelida: Polychaeta). I. Effects of hypoxia. Marine Ecology – Progress Series, 12, 289297.
Lwebuga-Musaka, J., 1970. The role of elytra in the movement of water over the surface of Halosydna brevisetosa (Polychaeta: Polynoidae). Bulletin of the Southern California Academy of Sciences, 69, 154160.
Menendez, A., Arias, J.S., Tolivia, D. & Alvarez-Uria, M., 1984. Ultrastructure of gill epithelial cells of Diopatra neapolitana (Annelida, Polychaeta). Zoomorphology, 104, 304309.
Nicholas, J.-M., Bassot, J.-M. & Shimonura, O., 1981. Characterisation d'une photoproteine nouvelle dans le systeme bioluminescent des annelides polynoinae. Cahiers de la Recherche Academie de Science, Paris, 293, 777780.
Nicholas, J.-M., Bassot, J.-M. & Shimonura, O., 1982. Polynoidin: a membrane photoprotein isolated from the bioluminescent system of a scale worm. Photochemistry and Photobiology, 35, 201207.
Pearse, A., 1968. Histochemistry: Theoretical and Applied, 3rd ed.London: J. and A. Churchill.
Pettibone, M., 1953. Some Scale-Bearing Polychaetes of Puget Sound and Adjacent Waters. Seattle: University of Washington Press.
Polysciences 1976. Data Sheet 123. Warrington, Pennsylvania: Polysciences Inc.
Rhodin, J., 1974. Histology, a Text and Atlas. New York: Oxford University Press.
Spies, R.B., 1973. The blood system of the flabelligerid polychaetes, Flabelliderma commensalis. Journal of Morphology, 139, 465490.
Spurr, A., 1969. A low viscosity epoxy resin embedding medium for electron microscopy. Journal of Ultrastructure Research, 26, 3143.
Storch, V. & Alberti, G., 1978. Ultrastructural observations on the gills of polychaetes. Helgoländer Meeresuntersuchungen, 31, 169179.
Storch, V. & Gaill, F., 1986. Ultrastructural observations on feeding appendages and gills of Alvinella pompejana (Annelida: Polychaeta). Helgoländer Meeresuntersuchungen, 40, 309319.
Storch, V. and Schlotzer-Schrehardt, U., 1988. Sensory structures In The Ultrastructure of Polychaeta, vol. 4. Microfauna Marina (ed. W., Westheide and C.O., Hermans), pp. 121133. Stuttgart: Gustav Fisher Verlag.
Storch, V. & Welsch, U., 1972. Ultrastructure and histochemistry of the integument of air breathing polychaetes from Mangrove swamps of Sumatra. Marine Biology, 17, 137144.
Threadgold, L. T., 1976. The Ultrastructure of the Animal Cell. Oxford: Pergamon Press.

Ultrastructural studies of the elytra of Pholoe minuta (Annelida: Polychaeta) with special reference to functional morphology

  • P. Heffernan (a1)

Metrics

Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed