Persistent effects of physical disturbance on meiobenthos in mangrove sediments

Dye, A.H.

doi:10.1016/j.marenvres.2006.05.003

Cited by 18 publications

(13 citation statements)

References 51 publications

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“…However, the most influencing factor on ciliate abundance in dried samples was soil moisture, not pH, slightly different from that in fresh samples. The relationships between ciliate abundance and soil chemical properties, namely, OM, TN, TP SO 4 2− , and TK, were all positive except TK, the same trend as that in fresh samples. Among these five factors on ciliate abundance, TP was most significant, followed by TN, SO 4 2− , and OM, and the effect of TK was the least.…”

Section: Correlation In Driedmentioning

confidence: 59%

“…The ciliate abundance was also positively correlated with OM, TN, TP, and SO 4 2− (P < .01), but negatively correlated with TK (P < .05). The effect of TN on the ciliate abundance was the largest, followed by TP, OM, and SO 4 2− , and TK showed the least effect.…”

Section: Relationship Between Ciliate Abundance Andmentioning

confidence: 91%

“…The pH and salinity values were obtained using a 1 : 5 soil/water solution by electrical conductivity (automatic, temperature-compensated conductivity meter). Analyses of organic matter were conducted using the acid-dichromate oxidation method, total nitrogen (TN) using the semi-micro kjeldahl method, total phosphate (TP) using the ammonium molybdate spectrophotometry method, total potassium (TK) using the flame photometer method, and SO 4 2− using barium sulfate turbidity. Soil mechanical composition of each dried sample was analyzed by a hydrometer method.…”

Section: Analysis Of Physical/chemical Parameters Of Soil Samplesmentioning

confidence: 99%

“…Although all major groups of mangrove plants and animals have been studied to some extent [3][4][5][6][7], little information is available on single-celled soil protozoan organisms except a few described species of foraminifera, amoeboid, and ciliated protists [8][9][10][11]. Investigations on soil ciliates in mangrove forest habitats are rare.…”

Section: Introductionmentioning

confidence: 99%

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Community Structure and Biodiversity of Soil Ciliates at Dongzhaigang Mangrove Forest in Hainan Island, China

Liao

et al. 2010

Applied and Environmental Soil Science

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The distribution of soil ciliates in three different habitats within a typical mangrove forest in Dongzhaigang, Hainan, China was investigated. The abundance, biodiversity, and community similarity of ciliates in fresh and air-dried soil with different, physical/chemical properties were analyzed. Three Classes, 11 Orders, 34 Genera, and 70 species of ciliates were found with the first dominant group being Hypotrichida. Ciliate biodiversities followed Site B < Site A < Site C in both fresh and dried samples. Ciliate abundance was positively correlated with soil moisture, salinity, organic matter (OM), total nitrogen (TN), total phosphorus (TP), and sulfate (SO 4 2− ), but negatively with pH and total potassium (TK). Site A and Site B and Site B and Site C showed the highest similarity in fresh and dried samples, respectively. The ubiquitous characteristics of ciliate distribution suggested their important role in food webs and nutrient cycling. The presence of Colpodida was linked with mangrove plants.

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Section: Correlation In Driedmentioning

confidence: 59%

Section: Relationship Between Ciliate Abundance Andmentioning

confidence: 91%

Section: Analysis Of Physical/chemical Parameters Of Soil Samplesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Community Structure and Biodiversity of Soil Ciliates at Dongzhaigang Mangrove Forest in Hainan Island, China

Liao

et al. 2010

Applied and Environmental Soil Science

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“…Granulometry parameters are usually found to be important for mangrove meio-infaunal communities (as in other habitats), but additional factors identified vary with authors, partially depending on the parameters measured. These include oxygen content and redox potential (Dye 1983;Vanhove et al 1992), salinity and photosynthetic pigments [as a proxy for food sources] (Gomes et al 2002), sediment organic content (Olafsson et al 2000), sediment temperature (Alongi 1987a), mangrove stand densities (Schrijvers et al 1995;Dye 2006), mangrove-derived tannins (Alongi 1987b;Alongi and Christoffersen 1992) and sediment biochemistry (Ndaro et al 1995). Most of these parameters are likely to interact with wave exposure and salinity, supporting the conclusion of Somerfield et al (1998), that, ''Meiofaunal communities in tropical soft sediment mangrove estuaries respond primarily to salinity and exposure gradients as in temperate non-vegetated estuaries''.…”

Section: Mangrovesmentioning

confidence: 99%

Assessment of regional and local biodiversity in tropical and subtropical coastal habitats in the East African Marine Ecoregion

et al. 2011

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The transboundary networks of Marine Protected Areas (MPAs) project, TRANSMAP, assessed local turnover and regional biodiversity across the East African Marine Ecoregion, where inter-governmental co-operation has been working to connect local MPAs. The benthic fauna in the three most dominant habitats on this coastlinebeaches, mangroves and seagrasses-were studied in two Regions (Northern Region, 10-13°S; Southern Region, 25-28°S). Meiofaunal taxa were used as the model faunal group owing to their diversity and abundance across habitat types and environmental conditions. Meiofaunal abundance averaged 2,500 individuals 10 cm -2 and was generally higher in mangrove and seagrass sediments than on the beaches, and was significantly different between habitats 9 Regions. In total, 18 taxa were recorded with highest diversity in the beach samples. Diversity indices and assemblage structure were significantly different between habitats, but also Regions.

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Lack of correlation between surface macrofauna, meiofauna, erosion threshold and biogeochemical properties of sediments within an intertidal mudflat and mangrove forest

2010

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This article describes the relationship between 10 selected properties of the sediments (chlorophyll a and b, colloidal and total carbohydrate, water concentration, sediment type, organic matter, erosion threshold and erosion rate) and meio- and macrofauna within and among three different habitats in an urbanized intertidal mudflat/mangrove forest in Tambourine Bay, Sydney Harbour, Australia. Many of the biogeochemical variables were significantly different among habitats, often grading from mudflat to mangrove canopy. In contrast to previous studies, patterns of distribution of macrofauna among habitats were weak. For the meiofauna, only copepods showed any significant difference among habitats, with the greatest numbers in the open mudflat habitat and least under the mangrove canopy. There was a gradient in fauna among the habitats; overall macrofauna abundances were greatest under the mangrove canopy and least on the mudflat, while meiofauna abundance was greatest in the pneumatophore habitat and least under the canopy. Correlations between fauna and properties of sediment were generally weak. When the habitats were analysed separately, some correlations were strengthened but relationships were inconsistent. Thus, while some taxa vary significantly among habitats there was not a strong relationship between biogeochemical properties and either macro- or meiofauna. This suggests that localised factors other than the measured properties of the sediments are driving patterns in fauna at these small scales, which requires further investigation to be unravelled

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Persistent effects of physical disturbance on meiobenthos in mangrove sediments

Cited by 18 publications

References 51 publications

Community Structure and Biodiversity of Soil Ciliates at Dongzhaigang Mangrove Forest in Hainan Island, China

Community Structure and Biodiversity of Soil Ciliates at Dongzhaigang Mangrove Forest in Hainan Island, China

Assessment of regional and local biodiversity in tropical and subtropical coastal habitats in the East African Marine Ecoregion

Lack of correlation between surface macrofauna, meiofauna, erosion threshold and biogeochemical properties of sediments within an intertidal mudflat and mangrove forest

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