Re-establishment of epibiotic communities in reforested mangroves of Gazi Bay, Kenya

被引：14

作者：

Crona B.I. ^{[1
]}

Holmgren S. ^{[1
]}

Rönnbäck P. ^{[1
]}

机构：

[1] Department of Systems Ecology, University of Stockholm, S-106 91, Stockholm

来源：

Wetlands Ecology and Management | 2006年 / 14卷 / 6期

关键词：

Algae; Epibiotic communities; Recolonization; Replanted mangroves; Sonneratia alba; Sponges;

D O I：

10.1007/s11273-006-9005-7

中图分类号：

学科分类号：

摘要：

Recolonization of epibiotic flora and fauna in two fringing Sonneratia alba reforestation plots was investigated and compared to a natural mangrove stand and a denuded site in Gazi Bay, Kenya. The reforested sites differed with respect to land history and planting density. Habitat availability in the form of pneumatophore surface differed among forested sites (P<0.001), and between landward and seaward zones (P<0.05). Eighteen algal species were found in the natural area compared to 23 and 10 in replanted sites. Only one species was encountered in the denuded area. SIMPER analysis distinguished Enteromorpha ramulosa, Polysiphonia sp., Hypnea sp. and Caloglossa leprieuri as the main algal species responsible for differences between sites. Algal biomass was positively correlated to pneumatophores area (P<0.001). Total algal biomass differed markedly between forested sites: 1.4 (matrix replantation), 28.6 (natural stand) and 44.3 g m-2 (integrated replantation) in the seaward zones. The matrix replantation showed strong differences in algal community assemblages compared to the other forested sites, and this site also had significantly lower biomass of sessile benthic fauna (P<0.001). Statistical differences in algal (P<0.01) and sponge (P<0.05) community composition between landward and seaward zones were observed in all sites and trunk fouling fauna was distinctly different between sites. Reasons for the above patterns are discussed and it is suggested that zonation patterns affecting pneumatophore surface and inundation time, in combination with proximity of sites to natural seeding areas, are the most likely explanations for observed patterns of epibiotic community distribution in this study. © 2006 Springer Science+Business Media, Inc.

引用

页码：527 / 538

页数：11

共 50 条

[1]

Alvarez B., Diaz M.C., Laughlin R.A., The sponge fauna on a fringing coral reef in Venezuela, I. Composition, distribution and abundance, New Perspectives in Sponge Biology, pp. 358-366, (1990)

[2]

Barthel D., Tendal O.S., The sponge association of the abyssal Norwegian Greenland Sea: Species composition, substrate relationships and distributions, Sarsia, 78, pp. 83-96, (1993)

[3]

Bayliss D.E., Spatial distribution of Balanus amphitrite and Elminius adelaide on mangrove pneumatophores, Mar Biol, 116, pp. 251-256, (1993)

[4]

Beanland W.R., Woelkerling Wm.J., Avicennia canopy effects on mangrove algal communities in Spencer Gulf, South Australia, Aquat Bot, 17, pp. 309-313, (1983)

[5]

Beck M.W., Separating the elements of habitat structure: Independent effects of habitat complexity and structural components on rocky intertidal gastropods, J Exp Mar Biol Ecol, 249, pp. 29-49, (2000)

[6]

Bell J.J., Barnes K.A., Effect of disturbance on assemblages:an example using porifera, Biol Bull, 205, pp. 144-159, (2003)

[7]

Bingham B.L., Young C.M., Larval behaviour of the ascidian Ecteinascidia turbinata Herdman

[8]

an in situ experimental study of the effects of swimming on dispersal, J Exp Mar Biol Ecol, 145, pp. 189-204, (1991)

[9]

Bingham B.L., Young C.M., Stochastic events and dynamics of a mangrove root epifaunal community, Mar Ecol, 16, 2, pp. 145-163, (1995)

[10]

Burkholder P.R., Almodovar L.R., Studies on mangrove algal communities in Puerto Rico, Florida Sci, 36, pp. 66-73, (1974)

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