The influence of forest type on microbial-nutrient relationships in tropical mangrove sediments

Alongi, Daniel M.; Christoffersen, Paul; Tirendi, Frank

doi:10.1016/0022-0981(93)90004-8

Cited by 154 publications

(96 citation statements)

References 42 publications

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“…5). The present findings are similar to those of Tanzania, Kenya and Malaysia (Skov and Hartnoll 2002) but higher than those of Taiwan, Papua New Guinea, Brazil and India (Alongi et al 1993) and lower than those of some north Australian mud (Boto and Wellington 1984). Skov and Hartnoll (2002) investigated the C and N contents and C/N ratios of leaves in crab burrows and found that they do not differ significantly from those of freshly fallen leaves.…”

Section: C/n Ratiossupporting

confidence: 82%

Feeding Habits of the Mangrove Sesarmid Crab <i>Neosarmatium trispinosum</i> (Crustacea) in the Ryukyu Islands, Japan

et al. 2010

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Sesarmid crabs are reported to dominate the Indo West-Pacific mangroves and consume huge amounts of mangrove leaves and detritus. Neosarmatium trispinosum Davie (1994) is common in the landward mangroves of the Ryukyu Islands in southern Japan. Stomach contents of the crabs collected from Okinawa, Miyako and Iriomote Islands showed that their diet consisted of mainly mangrove leaves with small amounts of sediments indicating that N. trispinosum is primarily detritivorous. The feeding preference of N. trispinosum was investigated by offering three types (green, yellow and brown) of Bruguiera gymnorrhiza leaves. Crabs were found to prefer brown leaves than the green or yellow ones. Consumption rate of brown leaves was significantly higher (p<0.0001) in cases where green, yellow and brown leaves were provided together, than when provided separately. The C/N ratio shows that the burrow sediments had C/N ratios 2/3 times lower than that of leaves, indicating that mangrove sediments could have higher nutritional value than mangrove leaves.

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Section: C/n Ratiossupporting

confidence: 82%

Feeding Habits of the Mangrove Sesarmid Crab <i>Neosarmatium trispinosum</i> (Crustacea) in the Ryukyu Islands, Japan

et al. 2010

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“…Mangroves are productive coastal forest areas, and their associated food chain and nutrient cycles are often closely linked to those in adjacent coastal waters (Alongi et al 1993, Alongi 1996. The trees can be regarded as links between the terrestrial and marine ecosystems (Chale 1993), and mangrove ecosystems are open, with exchange of nutrients, detritus and sediment facilitated by tidal flushing (Woodroffe 1985, Lee 1995.…”

Section: Introductionmentioning

confidence: 99%

Role of decomposition of mangrove and seagrass detritus in sediment carbon and nitrogen cycling in a tropical mangrove forest

Holmer¹,

Olsen²

2002

Mar. Ecol. Prog. Ser.

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The elemental composition and in situ decomposition of detritus of Rhizophora apiculata and Enhalus acoroides were studied in mangrove and seagrass bed sediments in the Bangrong mangrove, Phuket, Thailand, and compared with controlled laboratory flux incubations. At the field site detritus was buried in litter-boxes in the sediments and changes in particulate organic carbon and nitrogen in detritus and sediments were followed for up to 2 mo. In the flux incubations the sediments were amended with mangrove and seagrass leaves and rhizomes, and the exchange of oxygen, CO 2 , dissolved organic carbon (DOC) and inorganic nitrogen was measured across the sediment-water interface for 43 d. The decomposition of seagrass leaves was rapid both in situ and in the laboratory, whereas about 40% of the mangrove leaves remained after 43 d, and no decomposition could be detected for the seagrass rhizome detritus. There was an immediate increase in sediment oxygen uptake (SOU) in the seagrass sediments followed by an increase in CO 2 production after the addition of detritus, whereas the SOU remained low in the mangrove sediments. The C:N ratios decreased in the carbon-rich mangrove leaves and seagrass rhizome detritus, but increased in the less carbon-rich seagrass leaves during the decomposition. The decrease in C:N ratio was attributed to colonization by bacteria which incorporated nitrogen from the overlying water column or from the indigenous particulate organic nitrogen pool in the sediments. The mineralised carbon from the plant detritus was recovered as CO 2 , whereas no accumulation or release of DOC was found. The effect of amendment with mangrove detritus on the nitrogen fluxes was minor, whereas the uptake of nitrate and release of ammonium was enhanced with the seagrass leaves. About 32 to 36% of the mineralised nitrogen from the seagrass leaves was released across the sediment-water interface, where it became available for primary producers or exported to adjacent ecosystems KEY WORDS: Mangrove · Seagrass · Nutrient cycling · Decomposition · Tropical sediments Resale or republication not permitted without written consent of the publisher

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“…Mangroves area considered a place for keeping the primary producers that provide the base of the complex food web. Regardless of the richness of the mangrove environments with organic matter, such frameworks have a tendency to be supplement insufficient, particularly in nitrogen and phosphorus [49][50][51][52].…”

Section: Introductionmentioning

confidence: 99%

Ecological Study of the Rabigh Lagoon, Eastern Site of the Red Sea, Saudi Arabia with Special Reference to Eutrophication Index

Touliabah¹,

El-Bassat²

2017

J Marine Sci Res Dev

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Seasonal variation in plankton community structure (phytoplankton and zooplankton), chlorophyll a and some physico-chemical properties of Rabigh Lagoon were studied during 2015. The study aimed to estimate the environmental health of Rabig Lagoon as well as renewing the ecological data base for the investigated area. The study area included seven sites situated between latitudes 22.9978° to 22.8519° and longitudes 38.8339° to 38.9616°E. The ecological parameters comprise some physical and chemical parameters as Temperature, Secchi Disc, pH, DO, S%, Nutrients "Nitrite, NO2-N; Nitrate, NO3-N; Ammonia, NH3-N; total nitrogen, T-N; Reactive phosphate, PO4-P and total phosphorus, T-P". A total of 103 species belonging to five phytoplanktonic groups were identified. The most leadings group is Bacillariophyceae (45.05%) then Cyanophyceae (33.83%) followed by Dinophyceae (20.99%). On the other hand, Chrysophyceae (0.07%). and Chlorophyceae (0.05) are considered a rare group. Chlorophyll a showed almost the same pattern with the standing crops of the phytoplankton ranged between 12.33 μg l-1 during spring and a lowest value of 5.49 μg l-1 during summer. The most dominant group of zooplankton was Copepoda (89.00%) followed by Protista (7.30%) and Rotifera (3.70%). Dominancy of Copepoda was recorded during all the investigation period except autumn. The Diversity Index fluctuated between 2.785 during autumn and 3.568 during summer. Twenty one zooplankton species belonging to 18 genera were recorded during the present study. Calculating trophic status index according to Secchi Disc methods was found to be better than chlorophyll a and total phosphorus methods. The analysis showed that Rabigh Lagoon is a mesotrophic ecosystem. Canonical correspondence analysis (CCA) was carried out to reveal the relations between the physico-Chemical parameters and plankton groups.

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The influence of forest type on microbial-nutrient relationships in tropical mangrove sediments

Cited by 154 publications

References 42 publications

Feeding Habits of the Mangrove Sesarmid Crab <i>Neosarmatium trispinosum</i> (Crustacea) in the Ryukyu Islands, Japan

Feeding Habits of the Mangrove Sesarmid Crab <i>Neosarmatium trispinosum</i> (Crustacea) in the Ryukyu Islands, Japan

Role of decomposition of mangrove and seagrass detritus in sediment carbon and nitrogen cycling in a tropical mangrove forest

Ecological Study of the Rabigh Lagoon, Eastern Site of the Red Sea, Saudi Arabia with Special Reference to Eutrophication Index

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