Skip to main content

Marine Ecology

  • Korallenriff im Roten Meer

    Coral reef of the northern Red Sea

    Location: Marine Science Station, Aqaba, Jordan

    / Photographer: Malik Naumann

  • Fische im Rotem Meer

    Reef fish in the Gulf of Aqaba (Red Sea)

    Location: Blue Hole, Dahab, Egypt

    / Photographer: Malik Naumann

  • Blick aufs Meer.

    Caribbean ocean view

    Location: Tulum, Yucatan, Mexico

    / Photographer: Malik Naumann

Ein Foto von Christian Wild.


Prof. Dr. Christian Wild
Marine Ecology
FB2 Biology / Chemistry
University of Bremen


Email: christian.wildprotect me ?!uni-bremenprotect me ?!.de
Telephone: +49 421 218 63367
Room: UFT 2160

UFT, Leobener Str. 6
D-28359 Bremen




Inae Kim-Frommherz

Email: inaekfprotect me ?!uni-bremenprotect me ?!.de

Telefon: +49 421 218 62945
Raum: NW2 B 4010




logo icrs 2021

New date: 14th International Coral Reef Symposium July 18 - 23, 2021 in Bremen



The department of Marine Ecology pursues an interdisciplinary approach and uses a range of appropriate tools from the fields of ecophysiology, biogeochemistry, and microbiology in order to address the following focal research areas:

Acropora Korallen.

Ecosystem engineers and other key organism groups

We are investigating the impact of variable environmental factors (biotic and abiotic) and the influence of global (e.g. ocean acidification and warming) and local (e.g. eutrophication and overfishing) stressors on physiological processes (e.g. photosynthesis, growth, calcification, feeding and reproduction) of selected key organism groups (e.g. corals, sponges, algae), with emphasis on ecosystem engineers and their early life stages.

Eine Korallen-Algen-Interaktion.

Dynamics of benthic communities

This theme addresses the sensitivity of benthic communities (coral reefs, seagrass meadows, rocky shores) to anthropogenic disturbances (such as climate change, overfishing and eutrophication). We thereby focus on the interactions between different functional groups to assess community dynamics and biogeochemical community responses to environmental changes.

Der Kreislauf des Korallenschleims.

Nutrient cycles and energy transfer

Here, we examine the transport and exchange of organic matter and energy between the water column and benthic communities as well as between benthic ecosystems. This research further allows to understand linkage and connectivity with adjacent marine and terrestrial ecosystems. Our focus lies on biogeochemical carbon and nitrogen cycles.



PhD candidates

Ein Foto von Yusuf El-Khaled.

Contact :

yusuf.el-khaledprotect me ?!uni-bremenprotect me ?!.de

+49 421 218 63358

Room : UFT 2170

PhD candidate

Ein Foto von Anna Koester.

Contact :

anna.koesterprotect me ?!uni-bremenprotect me ?!.de

+49 421 218 63358

Room : UFT 2170

PhD candidate

Ein Photo von Arjen Tilstra.

Contact :

tilstraprotect me ?!uni-bremenprotect me ?!.de

+49 421 218 63358

Room : UFT 2170

PhD candidate

Kontakt :

+49 421 218 63303

Raum : UFT 2150

PhD student


+49 421 218 63485

Raum : UFT 2170

PhD student

Contact :

s-simancprotect me ?!uniandes.eduprotect me ?!.co

+49 421 218 63303

Room : UFT 2150

PhD candidate


+49 421 218 63485

Raum : UFT 2170

PhD student

Bachelor students

Bachelor student



Bachelor Student

Bachelor Student

ICRS 2021 Conference Secretariat

Kontakt :

+49 421 218 63303

Raum : UFT 2150


Ein Foto von Inae Kim-Frommherz.

Contact :

inaekfprotect me ?!uni-bremenprotect me ?!.de

+49 421 218 62945

Room : NW2 B 4010

Publications since 2017

42) Koester A, Migani V, Bunbury N, Ford A, Sanchez C, Wild C (in press) Early trajectories of benthic coral reef communities following the 2015/16 coral bleaching event at remote Aldabra Atoll, Seychelles. Scientific Reports
41) Ford A , Jouffray JB, Norström A, Moore BR, Nugues MM, Williams G, Bejarano S, Magron F, Wild C, Ferse S (in press) Local human impacts disrupt relationships between benthic reef assemblages and environmental predictors. Frontiers in Marine Science
40) Roth F, Rädecker N, Carvalho S, Duarte CM, Saderne V, Anton A, Silva L, Calleja ML, Morán XA, Voolstra CR, Kürten B, Jones BH, Wild C (in press) High summer temperatures amplify functional differences between coral- and algal-dominated reef communities. Ecology
39) Elías Ilosvay XE, Contreras-Silva AI, Alvarez-Filip L, Wild C (2020) Reef recovery in the Mexican Caribbean after 2005 mass coral mortality - potential drivers. Diversity 12 (338), DOI:10.3390/d12090338
38) Guan Y, Hohn S, Wild C, Merico A (2020) Vulnerability of global coral reef habitat suitability to ocean warming, acidification and eutrophication. Global Change Biology, DOI: 10.1111/gcb.15293
37) Roth F, Karcher D, Rädecker N, Hohn S, Carvalho S, Thomson T, Saalmann F, Voolstra CR, Kurten B, Struck U, Jones B, Wild C (2020) High rates of carbon and dinitrogen fixation suggest a critical role of benthic pioneer communities in energy and nutrient dynamics of coral reefs. Functional Ecology, DOI: 10.1111/1365-2435.13625

36) El-Khaled YC, Roth F, Tilstra A, Rädecker N, Karcher DB, Kürten B, Jones BH, Voolstra CR, Wild C (2020) In situ eutrophication stimulates dinitrogen fixation, denitrification, and productivity in Red Sea coral reefs. Marine Ecology Progress Series 645:55-66, DOI: 10.3354/meps13352
35) Vollstedt SM, Xiang N, Simancas S, Wild C (in press) Organic eutrophication increases resistance of the pulsating soft coral Xenia umbellata to warming.
34) Olischläger M, Wild C (2020) How does the sexual reproduction of marine life respond to ocean acidification? Diversity 12, 241, DOI:10.3390/d12060241
33) El-Khaled YC, Roth F, Rädecker N, Kharbatia N, Jones BH, Voolstra CR, Wild C (2020) Simultaneous measurements of dinitrogen fixation and denitrification associated with coral reef substrates: advantages and limitations of a combined acetylene assay. Frontiers in Marine Science 7:411, DOI: 10.3389/fmars.2020.00411
32) Contreras-Silva A, Tilstra A, Migani V, Thiel A, Pérez-Cervantes E, Estrada-Saldivar N, Elias X, Mott C, Alvarez-Filip L, Wild C (2020) A meta-analysis to assess long-term spatiotemporal changes of benthic coral and macroalgae cover in the Mexican Caribbean. Scientific Reports 10:8897, DOI: 10.1038/s41598-020-65801-8
31) Wild C (2020) Ecosystem engineering by different seagrasses in the Caribbean. Marine Biology 167:80, DOI: 10.1007/s00227-020-03690-1

30) Karcher DB, Roth F, Carvalho S, El-Khaled YC, Tilstra A, Kürten B, Struck U, Jones BH, Wild C (2020) Nitrogen eutrophication particularly promotes turf algae in coral reefs of the central Red Sea. PeerJ, DOI: 10.7717/peerj.8737

29) Tilstra A, El-Khaled YC, Roth F, Rädecker N, Pogoreutz C, Voolstra CR, Wild C (2019) Denitrification aligns with N2 fixation in Red Sea corals. Scientific Reports 9, Article number: 19460

28) Tilstra A, PogoreutzC, RädeckerN, ZieglerM, WildC, VoolstraCR (2019) Relative diazotroph abundance in symbiotic Red Sea corals decreases with water depth. Frontiers in Marine Science, DOI: 10.3389/fmars.2019.00372

27) Eich A, Ford AK, Nugues MM, McAndrews RS, Wild C, Ferse SCA (2019)Positive association between epiphytes and competitiveness of the brown algal genus Lobophora against corals. PeerJ, DOI: 10.7717/peerj.638

26) Roth F, Wild C, Carvalho S, Rädecker N, Voolstra CR, Kürten B, Anlauf H, El-Khaled Y, Carolan R, Jones BH (2019) An in situ approach for measuring biogeochemical fluxes in structurally complex benthic communities. Methods in Ecology and Evolution, DOI: 10.1111/2041-210x.13151

25) Roth F, Saalmann F, Thomson T, Coker D, Villalobos R, Jones BH, Wild C, Carvalho S (2018)  Coral reef degradation affects the potential for reef recovery after disturbance. Marine Environmental Research, DOI: j.marenvres.2018.09.022

24) Wizemann A, Nandini SD, Stuhldreier I, Sánchez-Noguera C, Wisshak M, Westphal H, Rixen T, Wild C, Reymond C (2018) Rapid bioerosion in a tropical upwelling coral reef. PloS One, DOI: 10.1371/journal.pone.0202887

23) Tilstra A, van Hoytema N, Cardini U, Bednarz VN, Rix L, Naumann MS,  Al-Horani FA, Wild C (2018) Effects of water column mixing and stratification on planktonic primary production and dinitrogen fixation on a northern Red Sea coral reef. Frontiers in Microbiology DOI: 10.3389/fmicb.2018.02351

22) Bednarz VN, Naumann MS, Cardini U, Van Hoytema N, Rix L, Rshaidat M, Wild C (2018) Contrasting seasonal responses in dinitrogen fixation between shallow and deep-water colonies of the model coral Stylophora pistillata in the northern Red Sea. PloS OneDOI: 10.1371/journal.pone.0199022

21) Lee S, Ford AK, Mangubhai S, Wild C, Ferse SCA (2018) Effects of sandfish (Holothuria scabra) removal on shallow-water sediments in Fiji. Peer J, DOI 10.7717/peerj.4773

20) Sánchez-NogueraC, StuhldreierI, CortésJ, JiménezC, MoralesA, WildC, RixenT (2018) Natural ocean acidification at Papagayo upwelling system (North Pacific Costa Rica): implications for reef development. Biogeosciences DOI: 10.5194/bg-15-2349-2018

19) Rix L, de Goeij JM, van Oevelen D, Struck U, Al-Horani FA, Wild C, Naumann MS (2018) Reef sponges facilitate the transfer of coral-derived organic matter to their associated fauna via the sponge loop. Marine Ecology Progress Series 589:85-96 DOI: 10.3354/meps12443

18) Pogoreutz C, Rädecker N, Cárdenas A, Gärdes A, Wild C, Voolstra CR (2018) Dominance of Endozoicomonas  bacteria throughout coral bleaching and mortality suggests structural inflexibility of the Pocillopora verrucosa microbiome. Ecology and Evolution 1–13 DOI: 10.1002/ece3.3830

17) Plass-Johnson JG, Ferse SC, Bednarz VN, Gärdes A, Heiden J, Lukman M, Miñarro S, Schwieder H, Weiand L, Wild C, Reuter H, Teichberg M (2018) Spatio-temporal patterns in the coral reef communities of the Spermonde Archipelago, 2012-2014, II: Fish assemblages display structured variation related to benthic condition. Frontiers in Marine Science DOI: 10.3389/fmars.2018.00036

16) Teichberg M, Wild C, Bednarz VN, Kegler HF, Lukman M, et al. (2018) Spatio-temporal patterns in coral reef communities of the Spermonde Archipelago, 2012-2014, I: Comprehensive reef monitoring reveals two indices that reflect changes in reef health. Frontiers in Marine Science DOI: 10.3389/fmars.2018.00036

15) Roth F, Stuhldreier I, Sanchez Noguera C, Carvalho S, Wild C (2017) Local stressors promote the relative success of D. cf. perlucidum in a tropical environment. Aquatic Invasions DOI: 10.3391/ai.2017.12.4.02

14) Ford AK, Eich A, McAndrews R, Mangubhai S, Nugues M, Bejarano S, Wild C, Moore BR, Rico C, Ferse SAC (2017) Contrasting interpretations of local management effectiveness from conventional versus complementary and process-based metrics. Ecological Indicators, DOI: 10.1016/j.ecolind.2017.10.002

13) Peiffer F, Bejarano S, de Witte GP, Wild C (2017) Ongoing removals of invasive lionfish in Honduras and their effect on native Caribbean prey fishes. PeerJ 5:e3818.

12) Tilstra A, Wijgerde T, Dini-Andreote F, Eriksson BK, Salles JF, Pen I, Osinga R, Wild C (2017) Light induced intraspecific variability in response to thermal stress in the hard coral Stylophora pistillata. PeerJ 5:e3802.

11) Cárdenas A, Neave MJ, Haroon MF, Pogoreutz C, Rädecker N, Wild C, Gärdes A, Voolstra CR (2017) Excess labile carbon promotes the expression of virulence factors in coral reef bacterioplankton. The ISME Journal.

10) Rädecker N, Pogoreutz C, Wild C, Voolstra CR (2017) Stimulated Respiration and Net Photosynthesis in Cassiopeia sp. during Glucose Enrichment Suggests in hospite CO2 Limitation of Algal Endosymbionts. Frontiers in Marine Science 4:267.

9) Tilstra A, Bednarz VN, Cardini U, van Hoytema N, Al-Rshaidat MM, Wild C (2017) Seasonality affects dinitrogen fixation associated with two common macroalgae from a coral reef in the northern Red Sea. Marine Ecology Progress Series 575:69-80.

8) Pogoreutz C, Rädecker N, Cárdenas A, Gärdes A, Wild C, Voolstra CR (2017) Nitrogen fixation aligns with nifH abundance and expression in two coral trophic functional groups. Frontiers in Microbiology 8:1187.

7) Pogoreutz C, Rädecker N, Cárdenas A, Gärdes A, Voolstra CR, Wild C (2017) Sugar enrichment provides evidence for a role of nitrogen fixation in coral bleaching. Global Change Biology.

6) Puk LD, Ferse SC, Wild C (2017) Erratum to: Patterns and trends in coral reef macroalgae browsing: a review of browsing herbivorous fishes of the Indo-Pacific. Reviews in Fish Biology and Fisheries 27(1):287-92.

5) Rix L, Goeij JM, Oevelen D, Struck U, Al‐Horani FA, Wild C, Naumann MS (2017) Differential recycling of coral and algal dissolved organic matter via the sponge loop. Functional Ecology 31(3):778-89.

4) Ford AK, Van Hoytema NA, Moore BR, Pandihau L, Wild C, Ferse SC (2017) High sedimentary oxygen consumption indicates that sewage input from small islands drives benthic community shifts on overfished reefs. Environmental Conservation 1-7.

3) Teichberg MC, Ferse SC, Bednarz VN, Gärdes A, Heiden JP, Lukman M, Miñarro S, Schwieder H, Weiand L, Wild C, Reuter H (2017) Spatio-temporal patterns in coral reef communities of the Spermonde Archipelago, 2012-2014, I: comprehensive reef monitoring reveals two indices that reflect changes in reef health. Frontiers in Marine Science.

2) Lee S, Ferse SCA, Ford A, Wild C, Mangubhai S (2017) Effect of sea cucumber density on the health of reef-flat sediments Fiji's Sea Cucumber Fishery: Advances in Science for Improved Management. Wildlife Conservation Society. Report

1) Kegler HF, Lukman M, Teichberg M, Plass-Johnson J, Hassenrück C, Wild C, Gärdes, A (2017) Bacterial Community Composition and Potential Driving Factors in Different Reef Habitats of the Spermonde Archipelago, Indonesia. Frontiers in Microbiology, 8, 662