EurekaMag
+ Most Popular
Cunninghamia lanceolata plantations in China
Mammalian lairs in paleo ecological studies and palynology
Studies on technological possibilities in utilization of anhydrous milk fat for production of recombined butter-like products
Should right-sided fibroelastomas be operated upon?
Large esophageal lipoma
Apoptosis in the mammalian thymus during normal histogenesis and under various in vitro and in vivo experimental conditions
Poissons characoides nouveaux ou non signales de l'Ilha do Bananal, Bresil
Desensitizing efficacy of Colgate Sensitive Maximum Strength and Fresh Mint Sensodyne dentifrices
Administration of fluid by subcutaneous infusion: revival of a forgotten method
Tundra mosquito control - an impossible dream?
Schizophrenia for primary care providers: how to contribute to the care of a vulnerable patient population
Geochemical pattern analysis; method of describing the Southeastern limestone regional aquifer system
Incidence of low birth weights in a hospital of Mexico City
Tabanidae
Graded management intensity of grassland systems for enhancing floristic diversity
Microbiology and biochemistry of cheese and fermented milk
The ember tetra: a new pygmy characid tetra from the Rio das Mortes, Brazil, Hyphessobrycon amandae sp. n. (Pisces, Characoidei)
Risk factors of contrast-induced nephropathy in patients after coronary artery intervention
Renovation of onsite domestic wastewater in a poorly drained soil
Observations of the propagation velocity and formation mechanism of burst fractures caused by gunshot
Systolic blood pressure in a population of infants in the first year of life: the Brompton study
Haematological studies in rats fed with metanil yellow
Studies on pasteurellosis. I. A new species of Pasteurella encountered in chronic fowl cholera
Dormancy breaking and germination of Acacia salicina Lindl. seeds
therapy of lupus nephritis. a two-year prospective study

Feeding and assimilation of mangrove leaves by the crab sesarma meinerti de man in relation to leaf litter production in mgazana a warm temperate southern african mangrove swamp


Feeding and assimilation of mangrove leaves by the crab sesarma meinerti de man in relation to leaf litter production in mgazana a warm temperate southern african mangrove swamp



Journal of Experimental Marine Biology and Ecology 157(1): 41-53



ISSN/ISBN: 0022-0981

DOI: 10.1016/0022-0981(92)90073-j

Consumption of Avicennia marina (Forsk.) Vierh. leaves by the large detritivorous mangrove grapsid Sesarma meinerti de Man was measured in the laboratory. This was compared with abscission rates for this mangrove species in the field (Mgazana estuary, Transkei, southern Africa) to estimate how much leaf material was directly utilised by this ecologically dominant crab. Although a significant correlation was found between crab size and dry litter mass ingested per day, no correlation was found between crab size and assimilation efficiency, which was high (82.44%). A seasonal trend in leaf litter fall was discernable with a mean annual rate of 1.79 g m-2 d-1 (653.4 g m-2 y-1). With a mean crab density of 4 m-2 and mean crab size of 40 g, leaf consumption was calculated at 0.78 g m-2 d-1 DM (284.7 g m-2 y-1 or 6462 kJ m-2 y-1), accounting for 43.58% of the leaf fall. For the entire mangrove area (150 ha) a total of 75 t of frasse (955 kJ m-2 y-1) enters the estuary per annum. This is a considerable contribution to the dentrital pool of the estuary and increases leaf turnover an estimated four-fold.

Please choose payment method:






(PDF emailed within 0-6 h: $19.90)

Accession: 007346480

Download citation: RISBibTeXText

Related references

Comparative fecundity and reproduction in seven crab species from Mgazana, a warm temperate southern African mangrove swamp. Crustacean Issues 12: 499-512, 2000

The feeding behaviour of the red mangrove crab Sesarma meinerti de Man, 1887 (Crustacea: Decapoda: Grapsidae) and its effect on the degradation of mangrove leaf litter. South African Journal of Marine Science 13: 151-160, 1993

Aspects of the population dynamics of Neosarmatium meinerti at Mgazana, a warm temperate mangrove swamp in the East Cape, South Africa, investigated using an indirect method. Hydrobiologia 449: 221-229, 2001

The East African decapod crab Neosarmatium meinerti (de Man) sweeps mangrove floors clean of leaf litter. Ambio 31(7-8): 569-573, 2002

The East African Decapod Crab Neosarmatium meinerti (de Man) Sweeps Mangrove Floors Clean of Leaf Litter. Ambio 31(7-8): 9-73, 2002

Feeding ecology of mangrove crabs in North Eastern Australia: Mangrove litter consumption by Sesarma messa and Sesarma smithii. Journal of Experimental Marine Biology and Ecology 171(2): 165-186, 1993

Effect of mangrove litter species and availability on survival, moulting, and reproduction of the mangrove crab Sesarma messa. Journal of Experimental Marine Biology and Ecology 171(2): 149-163, 1993

Effect of mangrove litter species and availability on survival, moulting, and reproduction of the mangrove crab Sesarma messa. Journal Of Experimental: 149-163, 1993

The larval development of the red mangrove crab sesarma meinerti de man brachyura grapsidae reared in the laboratory. South African Journal of Zoology 24(3): 199-211, 1989

Competition for mangrove leaf litter between two East African crabs, Neosarmatium meinerti Sesarmidae and Cardisoma carnifex Gecarcinidae a case of kleptoparasitism?. Journal of Ethology 29(3): 481-485, 2011

The nutrient status of Mgazana, a warm temperate mangrove estuary in the Transkei, Eastern Cape, South Africa. Wetlands Ecology and Management 13(4): 405-418, 2005

Chemical changes in detrital matter upon digestive processes in a sesarmid crab feeding on mangrove leaf litter. Hydrobiologia 803(1): 307-315, 2017

A comparison of soil carbon pools across a mangrove-salt marsh ecotone at the southern African warm-temperate range limit. South African Journal of Botany 127: 301-307, 2019

Endogenous cellulase production in the leaf litter foraging mangrove crab Parasesarma erythodactyla. Comparative Biochemistry and Physiology. Part B Biochemistry and Molecular Biology 179: 27-36, 2015

Leaf litter dynamics and litter consumption in two temperate South Australian mangrove forests. Journal of Sea Research 59(1-2): 83-93, 2008