Abstract
Benthic samples were collected at 13 stations in the Ría de Muros, north-west Spain. There are three major communities: (1) in the southern and outer part of the ría, an Amphiura filiformis—Thyone fusus community, inhabiting sandy sediments with low organic content; (2) in the middle part of the ría, and Amphiura chiajei—Maldane glebifex community, inhabiting muddy sediments that are not anoxic (sulphide not detected); (3) in Muros Bay and the inner part of the ría, a Spiochaetopterus costarum community, inhabiting anoxic sediments with high organic content. Biomass is very high (up to 46.2 g ash-free dry wt) in the first two communities. In the Spiochaetopterus costarum community, biomass and diversity are much lower, probably because of oxygen deficiency.
Similar content being viewed by others
Literature Cited
Andersin, A. B., J. Lassig and H. Sandler: Community structures of soft bottom macrofauna in different parts of the Baltic. In: Biology of benthic organisms. pp 7–20. Ed. by B. F. Keegan, P. O. Ceidigh and P. J. S. Boaden. Oxford: Pergamon Press 1977
Buchanan, J. B. and J. M. Kain: Measurement of the physical and chemical environment. In: Methods for the study of marine benthos, pp 30–58. Ed. by N. A. Holme and A. D. McIntyre. Oxford and Edinburgh: Blackwell Scientific Publications 1971
Cederwall, H.: Annual macrofauna production of a soft bottom in the Northern Baltic proper. In: Biology of benthic organisms, pp 155–164, Ed. by B. F. Keegan, P. O. Ceidigh and P.J.S. Boaden, Oxford: Pergamon Press 1977
Desbruyéres, D. et A. Guille: La faune benthique de l'Archipel de Kerguelen. Premières donées quantitatives. C. r. hebd. Séanc. Acad. Sci., Paris 276, 633–636 (1973)
Glémarec M.: La faune benthique dans la partie méridionale du massif armoricain. Etude preliminaire. Cah. Biol. mar. 6, 51–66 (1965)
López-Jamar, E.: Primeros datos sobre la biomasa y la composición del bentos infaunal de la Ría de Pontevedra, en relación con el contenido en materia orgánica del sedimento. Boln Inst. esp. Oceanogr. 4, (240), 55–69 (1978a)
López-Jamar, E.: Macrobentos infaunal de la Ría de Pontevedra. Boln Inst. esp. Oceanogr. 4, (264), 111–130 (1978b)
Morisita, M.: Measurement of interespecific association and similarity between communities. Mem. Fac. Sci. Kyushu Univ. (Ser E). 3, 65–80 (1959)
Rees, E.I.S., R. A. Eagle and A.J.M. Walker: Trophic and other influences on macrobenthos population fluctuations in Liverpool Bay. In: Tenth European Symposium on Marine Biology, Vol. 2. pp 589–599. Ed. by G. Persoone and E. Jaspers. Wetteren, Belgium: Universa Press 1975
Shannon, C. E. and W. Weaver: The mathematical theory of communication, 111 pp. Urbana: University of Illinois Press 1963
Southwood, T.R.E.: Ecological methods, 391 pp. London: Chapman & Hall 1971
Tenore, K. R. and N. González: Food chain patterns in the Ría de Arosa, Spain: an area of intense mussel aquaculture. In: Tenth European Symposium on Marine Biology, Vol. 2. pp 601–619. Ed. by G. Persoone and E. Jaspers. Wettern, Belgium: Universa Press 1975
Thiel, H.: Benthos in upwelling regions. In: Upwelling ecosystems, pp 124–138 Ed. by R. Boje and M. Tomczak. Berlin, Heidelberg: Springer-Verlag 1978
Thorson, G.: Bottom communities (sublittoral or shallow shelf) In: treatise on marine ecology and paleoecology, Vol. 1. pp 461–534. Ed. by J. W. Hedgpeth. Geological Society of America 1957. (Mem. geol. Soc. Am. No. 67)
Wass, M. L.: Biological and physiological basis of indicator organisms and communities. Section II. Indicators of pollution. In: Pollution and marine ecology, pp 271–283. Ed. by T. A. Olson and F. J. Burgess, New York: Interscience Publishers 1967
Wilhm, J. L.: Use of biomass units in Shannon's formula. Ecology 49, 153–156 (1968)
Author information
Authors and Affiliations
Additional information
Communicated by J. M. Pérès, Marseille
Rights and permissions
About this article
Cite this article
López-Jamar, E. Spatial distribution of the infaunal benthic communities of the Ría de Muros, north-west Spain. Mar. Biol. 63, 29–37 (1981). https://doi.org/10.1007/BF00394660
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF00394660