Effects of the Bioturbating Marine Yabby Trypaea australiensis on Sediment Properties in Sandy Sediments Receiving Mangrove Leaf Litter
| Autor: | Peter R. Teasdale, Nathan J. Waltham, David T. Welsh, Franck Gilbert, Jean-Christopher Poggiale, Ryan Jay Keith Dunn |
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| Přispěvatelé: | Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE), Université de la Méditerranée - Aix-Marseille II (FRANCE), Laboratoire Ecologie Fonctionnelle et Environnement (ECOLAB), Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Observatoire Midi-Pyrénées (OMP), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées, Institut méditerranéen d'océanologie (MIO), Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Université de Toulon (UTLN)-Centre National de la Recherche Scientifique (CNRS), James Cook University (JCU), Laboratoire Ecologie Fonctionnelle et Environnement (LEFE), Institut Ecologie et Environnement (INEE), Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Observatoire Midi-Pyrénées (OMP), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université de Toulouse (UT), Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Toulon (UTLN)-Centre National de la Recherche Scientifique (CNRS), Dunn, Ryan JK, Welsh, David T, Teasdale, Peter R, Gilbert, Franck, Poggiale, Jean Christophe, Waltham, Nathan J, Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP) |
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
0106 biological sciences
Nutrient cycle Biogeochemical cycle 010504 meteorology & atmospheric sciences Avicennia marina Biodiversité et Ecologie Ocean Engineering Trypaea Ingénierie de l'environnement 01 natural sciences Mesocosm Animal science bioturbation Trypaea australiensis Sediment characteristics 14. Life underwater Mesocosm incubations ComputingMilieux_MISCELLANEOUS 0105 earth and related environmental sciences Water Science and Technology Civil and Structural Engineering Detritus biology Chemistry [SDE.IE]Environmental Sciences/Environmental Engineering 010604 marine biology & hydrobiology fungi Sediment 15. Life on land Plant litter biology.organism_classification sediment characteristics [SDE.BE]Environmental Sciences/Biodiversity and Ecology Bioturbation mesocosm incubations avicennia arina |
| Zdroj: | Journal of Marine Science and Engineering Journal of Marine Science and Engineering, MDPI, 2019, 7 (12), pp.426. ⟨10.3390/jmse7120426⟩ Volume 7 Issue 12 Journal of Marine Science and Engineering, 2019, 7 (12), pp.426. ⟨10.3390/jmse7120426⟩ |
| ISSN: | 2077-1312 |
| DOI: | 10.3390/jmse7120426⟩ |
| Popis: | Laboratory mesocosm incubations were undertaken to investigate the influence of burrowing shrimp Trypaea australiensis (marine yabby) on sediment reworking, physical and chemical sediment characteristics and nutrients in sandy sediments receiving mangrove (Avicennia marina) leaf litter. Mesocosms of sieved, natural T. australiensis inhabited sands, were continually flushed with fresh seawater and pre-incubated for 17 days prior to triplicates being assigned to one of four treatments sandy sediment (S), sediment + yabbies (S+Y), sediment + leaf litter (organic matter S+OM) and sediment + yabbies + leaf litter (S+Y+OM) and maintained for 55 days. Mangrove leaf litter was added daily to treatments S+OM and S+Y+OM. Luminophores were added to mesocosms to quantify sediment reworking. Sediment samples were collected after the pre-incubation period from a set of triplicate mesocosms to establish initial conditions prior to the imposition of the treatments and from the treatment mesocosms at the conclusion of the 55-day incubation period. Yabbies demonstrated a clear effect on sediment topography and leaf litter burial through burrow creation and maintenance, creating mounds on the sediment surface ranging in diameter from 3.4 to 12 cm. Within S+Y+OM sediments leaf litter was consistently removed from the surface to sub-surface layers with only 7.5% ± 3.6% of the total mass of leaf detritus added to the mesocosms remaining at the surface at the end of the 55-day incubation period. Yabbies significantly decreased sediment wet-bulk density and increased porosity. Additionally, T. australiensis significantly reduced sediment bio-available ammonium (NH4+bio) concentrations and altered the shape of the concentration depth profile in comparison to the non-bioturbated mesocosms, indicating influences on nutrient cycling and sediment-water fluxes. No significant changes for mean apparent biodiffusion coefficients (Db) and mean biotransport coefficients (r), were found between the bioturbated S+Y and S+Y+OM mesocosms. The findings of this study provide further evidence that T. australiensis is a key-species in shallow intertidal systems playing an important role as an &lsquo ecosystem engineer&rsquo in soft-bottom habitats by significantly altering physical and chemical structures and biogeochemical function. |
| Databáze: | OpenAIRE |
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