Dispersal of marine meiofauna. Areview and conceptual model explaining passive transport and active emergence with implications for recruitment

Palmer, MA

doi:10.3354/meps048081

Cited by 261 publications

(193 citation statements)

References 42 publications

(71 reference statements)

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“…Colonisation by invertebrates is rapid, however, it is limited in its extent and magnitude (Norkko and Bonsdorff, 1996;Palmer, 1988). For that reason active migration or passive dispersion towards macrophytodetritus accumulations was not sufficient to explain comparable quantities and diversities.…”

Section: Harpacticoid Copepod Species Assemblage In Detritusmentioning

confidence: 99%

Seasonal variability of meiofauna, especially harpacticoid copepods, in Posidonia oceanica macrophytodetritus accumulations

Mascart

Lepoint

Deschoemaeker

et al. 2015

Journal of Sea Research

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The overall aim of this study was (1) to assess the diversity and density of meiofauna taxa, especially harpacticoid copepod species, present within accumulated seagrass macrophytodetritus on unvegetated sand patches and (2) to elucidate the community structure of detritus-associated harpacticoid copepods in relation to natural temporal variability of physico-chemical characteristics of accumulations. This was investigated in a Posidonia oceanica (L.) Delile seagrass ecosystem in the northwest Mediterranean Sea (Bay of Calvi, Corsica, 42°35′N, 8°43′E) using a triplicate macrophytodetritus core field sampling in two contrasting sites over the four seasons of 2011. Meiofauna higher taxa consisted of 50% Copepoda, of which 87% belonged to the Harpacticoida order. Nematoda was the second most abundant taxa. The copepod community displayed a wide variety of morphologically similar and ecologically different species (i.e. mesopsammic, phytal, phytal-swimmers, planktonic and parasitic). The harpacticoid copepod community followed a strong seasonal pattern with highest abundances and species diversity in May-August, revealing a link with the leaf litter epiphyte primary production cycle. Aside from the important role in sheltering, housing and feeding potential of macrophytodetritus, a harpacticoid community BEST analysis demonstrated a positive correlation with habitat complexity and a negative correlation with water movements and P. oceanica leaf litter accumulation.

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Section: Harpacticoid Copepod Species Assemblage In Detritusmentioning

confidence: 99%

Seasonal variability of meiofauna, especially harpacticoid copepods, in Posidonia oceanica macrophytodetritus accumulations

Mascart

Lepoint

Deschoemaeker

et al. 2015

Journal of Sea Research

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“…However, recent investigations revealed that at least some meiofaunal taxa may actively leave the sediment and swim in the water column (Alldredge & King, 1977;Hobson & Chess, 1979;Hammer, 1981;Sibert, 1981;Ohlhorst, 1982;Hicks, 1986;Walters & Bell, 1986; recently reviewed by Palmer, 1988). Most of these studies deal with tropical to warm temperate subtidal habitats.…”

Section: Introductionmentioning

confidence: 99%

Meiofaunal emergence from intertidal sediment measured in the field: significant contribution to nocturnal planktonic biomass in shallow waters

Armonies

1989

Helgolander Meeresunters

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Field studies on the occurrence of meiobenthos in the water column above intertidal sandflats have been performed near the Island of Sylt in the northern Wadden Sea. Swimming meiobenthos was strongly dominated by harpacticoid copepods. Many of them have a semiplanktonic fife-style. They rest in superficial sediment layers at low tide and swim in the water column at high tide. Swimming activity correlated negatively with light. The abundance in the water column was one order of magnitude higher during the night. Strong currents caused by storm tides significantly decreased meiobenthic abundance in the water column. Light and flow being constant, no significant changes of meiobenthic abundance per unit area occurred over a tidal cycle. Since holoplankton and meroplankton abundances correlated positively with the height of the water column, semiplanktonic meiobenthos may dominate the mesozooplankton in shallow waters. On an average, emergence of meiobenthos increased the mesozooplanktonic biomass by about 2 % during diurnal high tides over the entire tidal cycle, and by about 50 % during nocturnal high tides. Because of seasonal cycles of the dominant harpacticoids, this high contribution to planktonic biomass may be a summer phenomenon.

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“…Butman et al 1988, Snelgrove et al 1993 suggest that in weak flows, small fauna can easily move locally, e.g. on the cm scale, as well as distantly (Palmer 1988, Stocks 2002. Thus, avoidance of disturbed areas by new recruits, and local movement to a more favorable area (Snelgrove et al 2001a), may enhance survival in a habitat where adult conspecifics thrive.…”

Section: Disturbance Habitat Selection and Community Structurementioning

confidence: 99%

Disturbance and recruitment: a test of solute and substrate specificity using Mercenaria mercenaria and Capitella sp. 1

Marinelli¹

2004

Mar. Ecol. Prog. Ser.

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Disturbances alter sediment surface chemistry, and this alteration promotes rejection of habitats by new benthic recruits. To date, the specific compound(s) affecting the rejection response have not been identified, but model predictions and experimental evidence suggest that oxygen and ammonium concentrations are informative. We evaluated the recruitment response of the opportunistic polychaete Capitella sp. 1 to disturbed, undisturbed and recovering sediments, with parallel measures of oxygen concentration at the sediment surface. Results suggest that Capitella sp. 1 avoid disturbed sediments, but the behavior was not consistent with surface oxygen concentration. We also manipulated porewater ammonium concentration and examined the recruitment responses of Mercenaria mercenaria and Capitella sp. 1 to experimentally altered, as well as naturally disturbed, surfaces. Results suggest that M. mercenaria avoid disturbed habitats, regardless of ammonium concentration; however, Capitella sp. 1 responses were consistent with avoidance of high ammonium environments. Finally, we tested a prediction of our disturbance recovery model: that chemical signals associated with disturbance, and responses of recruits, vary as a function of the diagenetic regime. As predicted, chemical concentrations were more dramatically changed in disturbed muds relative to disturbed sands. Capitella sp. 1 rejected disturbed mud surfaces having high ammonium/low oxygen but accepted habitats having low ammonium and high oxygen, including undisturbed mud and sand surfaces, and disturbed sand surfaces. M. mercenaria rejected disturbed sediments regardless of ammonium or oxygen concentration, or sediment type. Our findings confirm that small-scale geochemical processes that are widespread in sedimentary habitats affect recruitment decisions.

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Dispersal of marine meiofauna. Areview and conceptual model explaining passive transport and active emergence with implications for recruitment

Cited by 261 publications

References 42 publications

Seasonal variability of meiofauna, especially harpacticoid copepods, in Posidonia oceanica macrophytodetritus accumulations

Seasonal variability of meiofauna, especially harpacticoid copepods, in Posidonia oceanica macrophytodetritus accumulations

Meiofaunal emergence from intertidal sediment measured in the field: significant contribution to nocturnal planktonic biomass in shallow waters

Disturbance and recruitment: a test of solute and substrate specificity using Mercenaria mercenaria and Capitella sp. 1

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