- Stable isotope ecology
- Compound specific analysis of natural abundance δ15N in amino acids
- Utilization of dissolved organic nitrogen
- Processing of microphytobenthos-derived organic matter
Dr. Philip Riekenberg
Linked news
Monday 11 September 2023
'A crab is never just a crab'
A herring in the North Sea, a crab in the Wadden Sea or an anemone fish on a coral reef, ... biologists like to think in terms of individual species that all have their own place within food webs in ecosystems across the world. "But that is surely…
Tuesday 18 October 2022
Microphytobenthos in the Dutch Wadden Sea feeds on ‘left-overs’ in the bottom
The Wadden Sea is an extremely productive ecosystem whose food web is supported by benthic organisms, feeding on primary producers. In a recent publication in Frontiers of Ecology and Evolution, NIOZ marine biogeochemist dr. Philip Riekenberg and…
Friday 08 July 2022
Researchers unravelled how deep-sea sponge grounds can survive far away from common food sources
Sponge grounds, areas with high densities of deep-sea sponges, are hotspots of biodiversity and biomass in the food deprived deep sea. They are just like oases in the desert. It was unknown how these sponge grounds could survive in this food-limited…
Wednesday 08 December 2021
Baleens read like a whale's history book
By chemically analyzing sequential samples from the baleen of dead whales, it is possible to read not only the history of the diet, but also the migration route of the animals. In the latest issue of the journal Royal Society Open Science, NIOZ…
Friday 20 August 2021
Marine parasites secretly nibble from their hosts
Parasitic copepods that were thought to use their marine hosts as a foothold and to steal food from their intestinal tract, now turn out to use a mixed feeding style to feed on both the host and its food. By applying a novel molecular method to…
Monday 05 July 2021
Dolphin species that live together, do not necessarily compete for food
A new molecular method reveals how different species of toothed whales compete for prey and which food they choose in each other’s company. Marine scientists from NIOZ and the Federal University of Rio Grande, in Brazil, recently published their work…
NIOZ publications
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2023
Fry, B.; O’Mara, K.; Riekenberg, P.M.; Wassenaar, L.I.; Cormier, N. (2023). Flexitraits, natural chemical tracers of plant competition and productivity in Pacific mangroves. Wetlands 43(4). https://dx.doi.org/10.1007/s13157-023-01672-9
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2022
Hanz, U.; Riekenberg, P.M.; de Kluijver, A.; van der Meer, M.T.J.; Middelburg, J.J.; de Goeij, J.M.; Bart, M.C.; Wurz, E.; Colaço, A.; Duineveld, G.C.A.; Reichart, G.-J.; Rapp, H.T.; Mienis, F. (2022). The important role of sponges in carbon and nitrogen cycling in a deep‐sea biological hotspot. Funct. Ecol. 36(9): 2188-2199. https://dx.doi.org/10.1111/1365-2435.14117Riekenberg, P.M.; van der Heide, T.; Holthuijsen, S.; van der Veer, H.W.; van der Meer, M.T.J. (2022). Compound-specific stable isotope analysis of amino acid nitrogen reveals detrital support of microphytobenthos in the Dutch Wadden Sea benthic food web. Front. Ecol. Evol. 10: 951047. https://dx.doi.org/10.3389/fevo.2022.951047
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2021
Riekenberg, P.M.; Briand, M.J.; Moleana, T.; Sasal, P.; van der Meer, M.T.J.; Thieltges, D.W.; Letourneur, Y. (2021). Isotopic discrimination in helminths infecting coral reef fishes depends on parasite group, habitat within host, and host stable isotope value. NPG Scientific Reports 11: 4638. https://doi.org/10.1038/s41598-021-84255-0Riekenberg, P.M.; Camalich, J.; Svensson, E.; IJsseldijk, L.L.; Brasseur, S.M.; Witbaard, R.; Leopold, M.F.; Rebolledo, E.B.; Middelburg, J.J.; Van der Meer, M.T.J.; Sinninghe Damsté, J.S.; Schouten, S. (2021). Reconstructing the diet, trophic level and migration pattern of mysticete whales based on baleen isotopic composition. Royal Society Open Science 8(12): 210949. https://dx.doi.org/10.1098/rsos.210949Riekenberg, P.M.; Joling, T.; IJsseldijk, L.L.; Waser, A.M.; van der Meer, M.T.J.; Thieltges, D.W. (2021). Stable nitrogen isotope analysis of amino acids as a new tool to clarify complex parasite–host interactions within food webs. Oikos (Kbh.) 31(10): 1650-1664. https://dx.doi.org/10.1111/oik.08450Then, A.Y.-H.; Adame, M.F.; Fry, B.; Chong, V.C.; Riekenberg, P.M.; Mohammad Zakaria, R.; Lee, S.Y. (2021). Stable isotopes clearly track mangrove inputs and food web changes along a reforestation gradient. Ecosystems 24(4): 939-954. https://doi.org/10.1007/s10021-020-00561-0Troina, G.; Riekenberg, P.M.; Van der Meer, M.T.J.; Botta, S.; Dehairs, F.; Secchi, E.R. (2021). Combining isotopic analysis of bulk-skin and individual amino acids to investigate the trophic position and foraging areas of multiple cetacean species in the western South Atlantic. Environ. Res. 201: 111610. https://dx.doi.org/10.1016/j.envres.2021.111610
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2020
Oakes, J.M.; Riekenberg, P.M.; Eyre, B.D. (2020). Assimilation and short‐term processing of microphytobenthos nitrogen in intertidal sediments. Limnol. Oceanogr. 65(10): 2377-2389. https://dx.doi.org/10.1002/lno.11459Riekenberg, P.M.; Oakes, J.M.; Eyre, B.D. (2020). Shining light on priming in euphotic sediments: nutrient enrichment stimulates export of stored organic matter. Environ. Sci. Technol. 54(18): 11165-11172. https://dx.doi.org/10.1021/acs.est.0c01914Riekenberg, P.M.; Oakes, J.M.; Eyre, B.D. (2020). A shift in the pool of retained microphytobenthos nitrogen under enhanced nutrient availability. Wat. Res. 187: 116438. https://doi.org/10.1016/j.watres.2020.116438Riekenberg, P.M.; van der Meer, M.T.J.; Schouten, S. (2020). Practical considerations for improved reliability and precision during determination of δ15N values in amino acids using a single combined oxidation-reduction reactor. Rapid Comm. Mass Spectrom. 34(14): e8797. https://doi.org/10.1002/rcm.8797
