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Community structure and intertidal zonation of the macrobenthos on a macrotidal, ultra-dissipative sandy beach: summer-winter comparison

Steven Degraer (UGent) , I Mouton, Liesbeth De Neve (UGent) and Magda Vincx (UGent)
(1999) ESTUARIES. 22(3B). p.742-752
Author
Organization
Abstract
Community structure and intertidal zonation of the macrobenthos on a macrotidal, ultra-dissipative beach were studied. On the beach of De Panne, Belgium, six transects perpendicular to the waterline teach with five stations) were sampled in September 1995 (summer) and March 1996 (winter). The 30 stations were distributed across the continuum from mean high water spring to mean low water spring in order to sample the macrobenthos at different levels of elevation. The 39 species found had total densities up to 5,500 ind m(-2) in summer and 1,400 ind m(-2) in winter. The highest densities were found in the spionid polychaetes Scolelepis squamata and Spio filicornis, the nephtyid polychaete Nephtys cirrosa, the cirolanid isopod Eurydice pulchra, and the haustorid amphipods Bathyporeia spp. Based on species composition, specific densities, and biomass, two species associations were defined: a relatively species-poor, high intertidal species association, dominated by S. squamata and with an average density of 1,413 ind m(-2) and biomass of 808 mg AFDW m(-2) (summer); and a relatively species-rich, low intertidal species association, dominated by N. cirrosa, and with an average density of 104 ind m(-2) and biomass of 162 mg AFDW m(-2) in summer. For both seasons, the high intertidal species association was restricted in its intertidal distribution between the mean tidal and the mean high-water spring level, whereas the low intertidal species association was found from the mean tidal level to the subtidal. The latter showed good affinities with the subtidal N. cirrosa species association, occurring just offshore of De Panne beach, confirming the existence of a relationship between the low intertidal and subtidal macrobenthic species associations. Summer-winter comparison revealed a strong decrease in densities and biomass in the high intertidal zone during winter. Habitat continuity of the low intertidal zone with the subtidal allows subtidal organisms to repopulate the low intertidal zone.
Keywords
RICHNESS, BRAZIL, AUSTRALIA, POLYCHAETA, PATTERNS, VARIABILITY, MACROINFAUNA, MACROFAUNA, TIDE RANGE, SOUTH-CENTRAL CHILE

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Chicago
Degraer, Steven, I Mouton, Liesbeth De Neve, and Magda Vincx. 1999. “Community Structure and Intertidal Zonation of the Macrobenthos on a Macrotidal, Ultra-dissipative Sandy Beach: Summer-winter Comparison.” Estuaries 22 (3B): 742–752.
APA
Degraer, S., Mouton, I., De Neve, L., & Vincx, M. (1999). Community structure and intertidal zonation of the macrobenthos on a macrotidal, ultra-dissipative sandy beach: summer-winter comparison. ESTUARIES, 22(3B), 742–752. Presented at the 3rd Annual Marine and Estuarine Shallow Water Science and Management Conference.
Vancouver
1.
Degraer S, Mouton I, De Neve L, Vincx M. Community structure and intertidal zonation of the macrobenthos on a macrotidal, ultra-dissipative sandy beach: summer-winter comparison. ESTUARIES. 1999;22(3B):742–52.
MLA
Degraer, Steven, I Mouton, Liesbeth De Neve, et al. “Community Structure and Intertidal Zonation of the Macrobenthos on a Macrotidal, Ultra-dissipative Sandy Beach: Summer-winter Comparison.” ESTUARIES 22.3B (1999): 742–752. Print.
@article{175044,
  abstract     = {Community structure and intertidal zonation of the macrobenthos on a macrotidal, ultra-dissipative beach were studied. On the beach of De Panne, Belgium, six transects perpendicular to the waterline teach with five stations) were sampled in September 1995 (summer) and March 1996 (winter). The 30 stations were distributed across the continuum from mean high water spring to mean low water spring in order to sample the macrobenthos at different levels of elevation. The 39 species found had total densities up to 5,500 ind m(-2) in summer and 1,400 ind m(-2) in winter. The highest densities were found in the spionid polychaetes Scolelepis squamata and Spio filicornis, the nephtyid polychaete Nephtys cirrosa, the cirolanid isopod Eurydice pulchra, and the haustorid amphipods Bathyporeia spp. Based on species composition, specific densities, and biomass, two species associations were defined: a relatively species-poor, high intertidal species association, dominated by S. squamata and with an average density of 1,413 ind m(-2) and biomass of 808 mg AFDW m(-2) (summer); and a relatively species-rich, low intertidal species association, dominated by N. cirrosa, and with an average density of 104 ind m(-2) and biomass of 162 mg AFDW m(-2) in summer. For both seasons, the high intertidal species association was restricted in its intertidal distribution between the mean tidal and the mean high-water spring level, whereas the low intertidal species association was found from the mean tidal level to the subtidal. The latter showed good affinities with the subtidal N. cirrosa species association, occurring just offshore of De Panne beach, confirming the existence of a relationship between the low intertidal and subtidal macrobenthic species associations. Summer-winter comparison revealed a strong decrease in densities and biomass in the high intertidal zone during winter. Habitat continuity of the low intertidal zone with the subtidal allows subtidal organisms to repopulate the low intertidal zone.},
  author       = {Degraer, Steven and Mouton, I and De Neve, Liesbeth and Vincx, Magda},
  issn         = {0160-8347},
  journal      = {ESTUARIES},
  keyword      = {RICHNESS,BRAZIL,AUSTRALIA,POLYCHAETA,PATTERNS,VARIABILITY,MACROINFAUNA,MACROFAUNA,TIDE RANGE,SOUTH-CENTRAL CHILE},
  language     = {eng},
  location     = {Atlantic City, NJ, USA},
  number       = {3B},
  pages        = {742--752},
  title        = {Community structure and intertidal zonation of the macrobenthos on a macrotidal, ultra-dissipative sandy beach: summer-winter comparison},
  volume       = {22},
  year         = {1999},
}

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