Prof.(retired) Dr. Jörg A. Ott

Position: Group leader, PI  P 31594-B29


Main fields of scientific research

Marine Ecology, especially of benthic systems; seagrass meadows, mangroves, sulfidic habitats; meiofauna, especially nematodes; symbioses between bacteria and animals.




Phone: +43 664 7346 3888


Professional background

Born and educated in Vienna, studies in Zoology, Botany and Geography at the University of Vienna, Ph. D. in 1969, postdoctoral position at UNC Chapel Hill 1969-1971, 1972 Assistant Professor at the University of Vienna, 1982 Habilitation, 1992 - 2007 Associate Professor. 1985 - 2004 Editor-in-Chief of the journal PSZN: Marine Ecology. Since 1997 corresponding member of the Austrian Academy of Sciences.


Current Grants

P 31594-B29 project of the Austrian Science Foundation [2019 -] 307.425,30 €


Phylogeny and Biogeography of the Stilbonematinae


PI Ott, PhD students Scharhauser, Pröts



Peer-reviewed publications

Ott, J., & Pröts, P. (2021). Eubostrichopsis johnpearsei n. gen., n. sp., the first stilbonematid nematode (Nematoda, Desmodoridae) from the US West Coast. Zootaxa, 4949(2), 353–362. doi:

Ott, J., Pröts, P., Scharhauser, F. (2020). A new marine nematode, Catanema schiemeri n. sp. (Desmodoroidea) with multiple prokaryotic symbionts. Acta ZooBot Austria 157: 275 - 287

Scharhauser, F., Zimmermann, J., Ott, J. A., Leisch, N., & Gruber-Vodicka, H. R. (2020). Morphology of obligate ectosymbionts reveals Paralaxus gen. nov.: A new circumtropical genus of marine stilbonematine nematodes. Zoologica Scripta49(3), 379–394.

Bright, M., Espada-Hinojosa, S., Volland, J. M., Drexel, J., Kesting, J., Kolar, I., … Nemeschkal, H. L. (2019). Thiotrophic bacterial symbiont induces polyphenism in giant ciliate host Zoothamnium niveum. Scientific Reports9(1).

Ott, J. (2016). A Guide to Southern Temperate Seagrasses. Marine Ecology37(1), 234.

Zimmermann, J., Wentrup, C., Sadowski, M., Blazejak, A., Gruber-Vodicka, H. R., Kleiner, M., … Dubilier, N. (2016). Closely coupled evolutionary history of ecto-and endosymbionts from two distantly related animal phyla. Molecular Ecology25(13), 3203–3223.

Huang, Y., & Wang, H. (2015). Review of Onyx Cobb (Nematoda: Desmodoridae) with description of two new species from the Yellow Sea, China. Journal of the Marine Biological Association of the United Kingdom.

Ott, J., Gruber-Vodicka, H. R., Leisch, N., & Zimmermann, J. (2014). Erratum: Phylogenetic confirmation of the genus Robbea (Nematoda: Desmodoridae, Stilbonematinae) with the description of three new species (Systematics and Biodiversity (2014)). Systematics and Biodiversity12(4), ii.

Ott, J. A., Gruber-Vodicka, H. R., Leisch, N., & Zimmermann, J. (2014). Phylogenetic confirmation of the genus Robbea (Nematoda: Desmodoridae, Stilbonematinae) with the description of three new species. Systematics and Biodiversity12(4), 434–455.

Ott, J. A., Leisch, N., & Gruber-Vodicka, H. R. (2014). Eubostrichus fertilis sp. n., a new marine nematode (Desmodoridae: Stilbonematinae) with an extraordinary reproductive potential from Belize, Central America. Nematology16(7), 777–787.

Pende, N., Leisch, N., Gruber-Vodicka, H. R., Heindl, N. R., Ott, J., Den Blaauwen, T., & Bulgheresi, S. (2014). Size-independent symmetric division in extraordinarily long cells. Nature Communications5.

Sugawara, E., & Nikaido, H. (2014). Properties of AdeABC and AdeIJK efflux systems of Acinetobacter baumannii compared with those of the AcrAB-TolC system of Escherichia coli. Antimicrobial Agents and Chemotherapy58(12), 7250–7257.

Dirks, U., Gruber-Vodicka, H. R., Egger, B., & Ott, J. A. (2012). Proliferation pattern during rostrum regeneration of the symbiotic flatworm Paracatenula galateia: A pulse-chase-pulse analysis. Cell and Tissue Research349(2), 517–525.

Dirks, U., Gruber-Vodicka, H. R., Leisch, N., Bulgheresi, S., Egger, B., Ladurner, P., & Ott, J. A. (2012). Bacterial symbiosis maintenance in the asexually reproducing and regenerating flatworm Paracatenula galateia. PLoS ONE7(4).

Bulgheresi, S., Gruber-Vodicka, H. R., Heindl, N. R., Dirks, U., Kostadinova, M., Breiteneder, H., & Ott, J. A. (2011). Sequence variability of the pattern recognition receptor Mermaid mediates specificity of marine nematode symbioses. ISME Journal5(6), 986–998.

Dirks, U., Gruber-Vodicka, H. R., Leisch, N., Sterrer, W., & Ott, J. A. (2011). A new species of symbiotic flatworms, Paracatenula galateia sp. nov. (Platyhelminthes: Catenulida: Retronectidae) from Belize (Central America). Marine Biology Research7(8), 769–777.

Gruber-Vodicka, H. R., Dirks, U., Leisch, N., Baranyi, C., Stoecker, K., Bulgheresi, S., … Ott, J. (2011). Paracatenula, an ancient symbiosis between thiotrophic Alphaproteobacteria and catenulid flatworms. Proceedings of the National Academy of Sciences of the United States of America108(29), 12078–12083.

Heindl, N. R., Gruber-Vodicka, H. R., Bayer, C., Lücker, S., Ott, J. A., & Bulgheresi, S. (2011). First detection of thiotrophic symbiont phylotypes in the pelagic marine environment. FEMS Microbiology Ecology77(1), 223–227.

Leisch, N., Dirks, U., Gruber-Vodicka, H. R., Schmid, M., Sterrer, W., & Ott, J. A. (2011). Microanatomy of the trophosome region of Paracatenula cf. polyhymnia (Catenulida, Platyhelminthes) and its intracellular symbionts. Zoomorphology130(4), 261–271.

Bayer, C., Heindl, N. R., Rinke, C., Lücker, S., Ott, J. A., & Bulgheresi, S. (2009). Molecular characterization of the symbionts associated with marine nematodes of the genus Robbea. Environmental Microbiology Reports1(2), 136–144.

Loy, A., Duller, S., Baranyi, C., Mußmann, M., Ott, J., Sharon, I., … Wagner, M. (2009). Reverse dissimilatory sulfite reductase as phylogenetic marker for a subgroup of sulfur-oxidizing prokaryotes. Environmental Microbiology11(2), 289–299.

Hasler, H., & Ott, J. A. (2008). Diving down the reefs? Intensive diving tourism threatens the reefs of the northern Red Sea. Marine Pollution Bulletin56(10), 1788–1794.

Ott, J., Pansini, M., & Manconi, R. (2008). Klaus Ruetzler. A tribute. Marine Ecology29(2), 143–145.

Ott, J., Stachowitsch, M., & Ölscher, E. M. (2007). Preface. Marine Ecology28(SUPPL. 1), 1–2.

Bulgheresi, S., Schabussova, I., Chen, T., Mullin, N. P., Maizels, R. M., & Ott, J. A. (2006). A new C-type lectin similar to the human immunoreceptor DC-SIGN mediates symbiont acquisition by a marine nematode. Applied and Environmental Microbiology72(4), 2950–2956.

Rinke, C., Schmitz-Esser, S., Stoecker, K., Nussbaumer, A. D., Molnár, D. A., Vanura, K., … Bright, M. (2006). “Candidatus thiobios zoothamnicoli,” an ectosymbiotic bacterium covering the giant marine ciliate Zoothamnium niveum. Applied and Environmental Microbiology72(3), 2014–2021.

Gallmetzer, I., Pflugfelder, B., Zekely, J., & Ott, J. A. (2005). Macrofauna diversity in Posidonia oceanica detritus: Distribution and diversity of mobile macrofauna in shallow sublittoral accumulations of Posidonia oceanica detritus. Marine Biology147(2), 517–523.

Vopel, K., Thistle, D., Ott, J., Bright, M., & Røy, H. (2005). Wave-induced H2S flux sustains a chemoautotrophic symbiosis. Limnology and Oceanography50(1), 128–133.

Nussbaumer, A. D., Bright, M., Baranyi, C., Beisser, C. J., & Ott, J. A. (2004). Attachment mechanism in a highly specific association between ectosymbiotic bacteria and marine nematodes. Aquatic Microbial Ecology34(3), 239–246.

Ott, J., & Bright, M. (2004). Sessile ciliates with bacterial ectosymbionts from Twin Cays, Belize. Atoll Research Bulletin, (509–530), 1–7.

Ott, J., Bright, M., & Bulgheresi, S. (2004). Symbioses between marine nematodes and sulfur-oxidizing chemoautotrophic bacteria. Symbiosis36(2), 103–126.

Wadhams, P. (2004). Convective chimneys in the greenland sea: A review of recent observationsOceanography and Marine Biology: An Annual Review (Vol. 42).

Wadhams, P. (2004). Convective chimneys in the greenland sea: A review of recent observationsOceanography and Marine Biology: An Annual Review (Vol. 42).

Vopel, K., Reick, C. H., Arlt, G., Pöhn, M., & Ott, J. A. (2002). Flow microenvironment of two marine peritrich ciliates with ectobiotic chemoautotrophic bacteria. Aquatic Microbial Ecology29(1), 19–28.

Hoschitz, M., Bright, M., & Ott, J. A. (2001). Ultrastructure and reconstruction of the pharynx of Leptonemella juliae (Nematoda, Adenophorea). Zoomorphology121(2), 95–107.

Pöhn, M., Vopel, K., Grünberger, E., & Ott, J. (2001). Microclimate of the brown alga Feldmannia caespitula interstitium under zero-flow conditions. Marine Ecology Progress Series.

Pöhn, M., Vopel, K., Grünberger, E., & Ott, J. (2001). Microclimate of the brown alga Feldmannia caespitula interstitium under zero-flow conditions. Marine Ecology Progress Series210(210), 285–290.

Schiemer, F., & Ott, J. (2001). Metabolic levels and microhabitat of an interstitial cephalocarid and micro-isopod. Marine Ecology22(1–2), 13–22.

Vopel, K., Pöhn, M., Sorgo, A., & Otto, J. (2001). Ciliate-generated advective seawater transport supplies chemoautotrophic ectosymbionts. Marine Ecology Progress Series210, 93–99.

Polz, M. F., Ott, J. A., Bright, M., & Cavanaugh, C. M. (2000). When bacteria hitch a ride. ASM News66(9), 531–539.

Belegratis, M. R., Bitis, I., Economou-Amilli, A., & Ott, J. A. (1999). Epiphytic patterns of macroalgal assemblages on Cystoseira species (Fucales, Phaeophyta) in the east coast of Attica (Aegean Sea, Greece). Hydrobiologia412, 67–80.

Hartl, M. G. J., & Ott, J. A. (1999). An in-situ study on the influence of ascidian suspension feeding on the subtidal nepheloid layer in the northern Adriatic Sea. Marine Ecology20(3–4), 359–372.

Hentschel, U., Berger, E. C., Bright, M., Felbeck, H., & Ott, J. A. (1999). Metabolism of nitrogen and sulfur in ectosymbiotic bacteria of marine nematodes (Nematoda, Stilbonematinae). Marine Ecology Progress Series183, 149–158.

Hoschitz, M., Buchholz, T. G., & Ott, J. (1999). Leptonemella juliae sp.n. and Leptonemella vestari sp.n. (Stilbonematinae ), two new free-living marine nematodes from a subtidal sand bottom. Ann. Naturhist. Mus. Wien101 B(1995), 423–435.

Kampfer, S., Sturmbauer, C., & Ott, J. (1998). Phylogenetic Analysis of rDNA Sequences from Adenophorean Nematodes and Implications for the Adenophorea-Secernentea Controversy. Invertebrate Biology117(1), 29.

Ott, J. A., Bright, M., & Schiemer, F. (1998). The ecology of a novel symbiosis between a marine peritrich ciliate and chemoautotrophic bacteria. Marine Ecology19(3), 229–243.

Ott, J. A. (1997). A new symbiotic marine nematode, Adelphos rolandi gen. n. sp. n. (Stilbonematinae), from the Caribbean Sea. Annalen Des Naturhistorischen Museums in Wien Serie B Botanik Und Zoologie99B(June), 417–422.

Bauer-Nebelsick, M., Bardele, C. F., & Ott, J. A. (1996). Electron microscopic studies on Zoothamnium niveum (Hemprich & Ehrenberg, 1831) Ehrenberg 1838 (Oligohymenophora, Peritrichida), a ciliate with ectosymbiotic, chemoautotrophic bacteria. European Journal of Protistology32(2), 202–215.

Bauer-Nebelsick, M., Bardele, C. F., & Ott, J. A. (1996). Redescription of Zoothamnium niveum (Hemprich & Ehrenberg, 1831) Ehrenberg, 1838 (oligohymenophora, peritrichida), a ciliate with ectosymbiotic, chemoautotrophic bacteria. European Journal of Protistology32(1), 18–30.

Berger, E., Urbancik, W., & Ott, J. A. (1996). Eubostrichus topiarius sp. N., a new free-living, marine species of stilbonematinae (Nematoda: Desmodoridae) from a shallow subtidal sand bottom. Nematologica42(5), 521–536.

Urbancik, W., Bauer-Nebelsick, M., & Ott, J. A. (1996). The ultrastructure of the cuticle of Nematoda. I. The body cuticle within the Stilbonematinae (Adenophorea, Desmodoridae). Zoomorphology116(2), 51–64.

Urbancik, W., Novotny, V., & Ott, J. A. (1996). The ultrastructure of the cuticle of Nematoda. II. The cephalic cuticle of Stilbonematinae (Adenophorea, Desmodoridae). Zoomorphology116(2), 65–75.

Kampfer, S., & Ott, J. (1995). Nutrition and feeding preferences in the Caribbean echinoid Clypeaster rosaceus (Echinodermata: Echinoidea). Biology and ecology of shallow coastal waters. Proc. 28th European marine biology symposium, Iraklio, Crete, 1993.

Ott, J. A., Bauernebelsick, M., & Novotny, V. (1995). The Genus Laxus Cobb, 1894 (Stilbonematinae, Nematoda) - Description Of 2 New Species With Ectosymbiotic Chemoautotrophic Bacteria. Proceedings of the Biological Society of Washington108(3), 508–527.

Ott, J. A. (1995). Sulphide symbioses in shallow sands. Biology and ecology of shallow coastal waters. Proc. 28th European marine biology symposium, Iraklio, Crete, 1993.

Polz, M. F., Distel, D. L., Zarda, B., Amann, R., Felbeck, H., Ott, J. A., & Cavanaugh, C. M. (1994). Phylogenetic analysis of a highly specific association between ectosymbiotic, sulfur-oxidizing bacteria and a marine nematode. Applied and Environmental Microbiology60(12), 4461–4467.

Dworschak, P. C., & Ott, Jö. A. (1993). Decapod Burrows in Mangrove-Channel and Back-Reef Environments at the Atlantic Barrier Reef, Belize. Ichnos2(4), 277–290.

Ott, J. (1993). Lebensräume – Lebensformen Nematoden und Bakterien. Biologie in Unserer Zeit23(2), 127–132.

Nebelsick, M., Blumer, M., Novak, R., & Ott, J. (1992). A new glandular sensory organ in Catanema sp. (Nematoda, Stilbonematinae). Zoomorphology112(1), 17–26.

Polz, M. F., Felbeck, H., Novak, R., Nebelsick, M., & Ott, J. A. (1992). Chemoautotrophic, sulfur-oxidizing symbiotic bacteria on marine nematodes: Morphological and biochemical characterization. Microbial Ecology24(3), 313–329.

Ott, J. A., Novak, R., Schiemer, F., .Hentschel, U., Nebelsick, M., & Polz, M. (1991). Tackling the Sulfide Gradient: A Novel Strategy Involving Marine Nematodes and Chemoautotrophic Ectosymbionts. Marine Ecology12(3), 261–279.

Schiemer, F., Novak, R., & Ott, J. (1990). Metabolic studies on thiobiotic free-living nematodes and their symbiotic microorganisms. Marine Biology106(1), 129–137.

Velimirov, B., Herndi, G., & Ott, J. (1985). Mg2+-Einbau in Kalkskelette von Octocorallia. Verhandlungen Der Deutschen Zoologischen Gesellschaft78.

Ott, J., Rieger, G., Rieger, R., & Enderes, F. (1982). New Mouth less Interstitial Worms from the Sulfide System: Symbiosis with Prokaryotes. Marine Ecology3(4), 313–333.

Riedl, R. J., & Ott, J. A. (1982). Water movement through porous sediments. The dynamic environment of the ocean floor.

Wittmann, K. J., & Ott, J. A. (1982). Effects of Cropping on Growth in the Mediterranean Seagrass Posidonia oceanica (L.) Delile. Marine Ecology3(2), 151–159.

Ott, J. A. (1981). Adaptive Strategies at the Ecosystem Level: Examples from Two Benthic Marine Systems. Marine Ecology2(2), 113–158.

Velimirov, B., Ott, J. A., & Novak, R. (1981). Microorganisms on macrophyte debris: biodegradation and its implication in the food web. Kiel. Meersforsch. Spec. Publ.5, 333–344.

Ott, J. A. (1980). Growth and Production in Posidonia Oceanica (L.) Delile. Marine Ecology1(1), 47–64.

Ott, J. (1977). New freeliving nematodes from the west atlantic I. Four New Species from Bermuda with a Discussion of the Genera Cytolaimium and Rhabdocoma Cobb 1920. Zool. Anz.198(1/2), 120–138.

Ott, J., & Fedra, K. (1977). Stabilizing properties of a high-biomass benthic community in a fluctuating ecosystem. Helgoländer Wissenschaftliche Meeresuntersuchungen30(1–4), 485–494.

Ott, J. (1976). Brood Protection in a Marine Free Living Nematode; with the Description of Desmodora (Croconema) ovigera n. sp. Zoologischer Anzeiger Anzeiger196(3/4), 175–181.

Ott, J. A., Fuchs, R., & Malasek, A. (1976). Observations on the biology of Callianassa stebbingi (Borrodaille) and Upogebia litoralis (Risso) and their effect upon the sediment. Senckenbergiana Maritima8, 61–79.

Wieser, W., Ott, J., Schiemer, F., & Gnaiger, E. (1974). An ecophysiological study of some meiofauna species inhabiting a sandy beach at Bermuda. Marine Biology26(3), 235–248.

Ott, J. A. (1973). Concepts of underwater experimentation. Helgoländer Wissenschaftliche Meeresuntersuchungen24(1–4), 54–77.

Ott, J., & Schiemer, F. (1973). Respiration and anaerobiosis of free living nematodes from marine and limnic sediments. Netherlands Journal of Sea Research7(C), 233–243.

Machan, R., & Ott, J. (1972). Problems and Methods of Continuous in Situ Measurements of Redox Potentials in Marine Sediments. Limnology and Oceanography17(4), 622–626.

Ott, J. (1972). Studies on the diversity of the nematode fauna in intertidal sediments. Fifth European Marine Biology Symposium, 275–285.

Ott, J. A. (1972). Monobryozoon bulbosum n. sp., a new solitary interstitial Bryozoon from the West Atlantic coast. Cahiers de Biologie Marine13, 421–428.

Ott, J. A. (1972). Determination of Fauna Boundaries of Nematodes in an Intertidal Sand Flat. Internationale Revue Der Gesamten Hydrobiologie Und Hydrographie57(4), 645–663.

Ott, J. A. (1972). Twelve New Species of Nematodes from an Intertidal Sandflat in North Carolina. Internationale Revue Der Gesamten Hydrobiologie Und Hydrographie57(3), 463–496.

Ott, J. A., & Machan, R. (1971). Dynamics of climate parameters in intertidal sediments. Thalassia Jugosl.7(1), 219–229.

Rieger, R., & Ott, J. (1971). Gezeitenbedingte Wanderungen von Turbellarien und Nematoden eines Nordadriatischen Sandstrandes. Vie Milieu22(Suppl.22), 425–445.

Riedl, J. R., & Ott, J. A. (1970). A suction-corer to yield electric potentials in coastal sediment layers. Senckenbergiana Marit.2(2), 67–84.

Ott, J. A., & Svoboda, A. (1967). Sea caves as model systems for energy flow studies in primary hard bottom communities. PSZN I Marine Ecology40, 477–485.

Ott, J. (1967). Vertikalverteilung von Nematoden in Beständen nordadriatischer Sargassaceen. Helgoländer Wissenschaftliche Meeresuntersuchungen15(1–4), 412–428.

Book Chapters

Ott, J. Studies on the diversity of the nematode fauna in intertidal sediments. 5th European Symposium on Marine Biology, Piccin, Padua, pp. 275-285 (1972).


Ott, J. & L. Maurer. Strategies of the energy transfer from marine macrophytes to consumer levels: the Posidonia oceanica example. In: Keegan,B.F, P.O`Ceidigh and P.J.S.Boaden (Eds.): Biology of Benthic Organisms. Pergamon Press, New York (1977) pp. 493- 502.


Mazzella, L., F. Cinelli, J. Ott & W. Klepal. Studi sperimentali "in situ" sull`Epifitismo della Posidonia oceanica Delile. Atti X Congresso SIBM. Quaderni di Tecnica di Piscicoltura. Istituto des CNR Ancona 3 (1 Suppl.): 481-492 (1981).


Riedl, R. & J. Ott. Water movement through porous sediments. In: F.T. Manheim and K.A. Fanning (Eds.): The Dynamic Environment of the Ocean Floor. Heath, Lexington, pp. 29-56 (1982).


Svoboda, A. & J. Ott. In situ measurements of community metabolism in littoral marine sediments. In: E. Gnaiger und H. Forstner (Eds.): Polarographic Oxygen Sensors. Aquatic and Physiological Applications. Springer, Heidelberg, pp. 285-297 (1983).


Ott, J. & L. Mazzella. Seasonal changes in some features of Posidonia oceanica (L.) Delile leaves and epiphytes at differnt depths. In: C.F.Boudouresque, A. Jeudy de Grissac und J. Olivier (Eds.): International Workshop on Posidonia oceanica Beds, GIS Posidonie 1984, 1: 119-127 (1985).


Ott, J. Ökologie und Evolution. In: J. Ott, G. Wagner und M. Wuketits (Eds.): Evolution, Ordnung und Erkenntnis. Paul Parey, Berlin, pp.47-68 (1985).


Wurzian, S. & J. Ott. Eine nordadriatische Benthosgemeinschaft mit hoher Biomasse: Ihre Struktur und ihre Rolle in einem FlachwasserökosysteM. In: I Problemi di Mare Adriatico. Atti del Convegno Internazionale, Trieste, 26-27 Settembre 1983, Universita degle Studi di Trieste, pp. 319-330 (1984).


Ott, J. Phylum Nematoda (Roundworms). In: W. Sterrer (Ed.): Marine Fauna and Flora of Bermuda. John Wiley and Sons, Inc., New York, pp.216-219 (1986).


Ott, J. Changes in the North Adriatic Benthos. Atti del convegno: Lo stato di salute dell'Adriatico: Problemi e prospettivi. Urbino 1989 (1989): 75-83.


Ott, J. & R. Novak. Living at an interface: Meiofauna at the oxygen/sulfide boundary in marine sediments. In: J.S.Ryland & P.A.Tyler (Eds.): Reproduction, Genetics and Distributions of Marine Organisms. Olsen & Olsen, Fredensborg (1989), pp. 415- 422.


Ott, J. Systemtheorie und Ökologie. In: K.Kratky und E. Bonet (Hrsg). Systemtheorie und Reduktionismus. Edition S, Verlag der Österreichischen Staatsdruckerei (1989).


Ott, J. Biomass sampling. In: R.Philips (Ed.), Seagrass Systems. UNESCO Monographs on Oceanographic Methodology (1990), pp. 55-60.


Ott, J. The Adriatic Benthos: Problems and Perspectives. In: G.Colombo et al.(Eds): Marine eutrophication and population dynamics. Olsen & Olsen, Fredensborg (1992), pp. 367-378.


Ott, J. A symbiosis between nematodes and chemoautotrophic sulphur bacteria exploiting the chemocline of marine sands. In: R. Guerrero & C. Pedros-Alio (Eds.), Trends in Microb. Ecol., Barcelona, 1993, pp. 231-234.


Ott, J. & G. Herndl. Marine snow, mucus aggregates and bottom anoxias: Consequences for benthic-pelagic coupling. In F. Briand (Ed.): Mediterranean Tributary Seas, pp. 133-147 (1995).


Ott, J. Sulfide symbioses in shallow sands. In: A. Eleftheriou, A. Ansell and Ch. Smith (Eds.): Biology and Ecology of Shallow Coastal Waters, Olsen & Olsen, Fredensborg, pp. 143-147 (1995).


Kampfer, S. & J. Ott. Nutrition and feeding preferences of the Caribbean echinoid Clypeaster rosaceus (Echinodermata: Echinoidea). In: A. Eleftheriou, A. Ansell and Ch. Smith (Eds.): Biology and Ecology of Shallow Coastal Waters, Olsen & Olsen, Fredensborg, pp. 309-313 (1995).


Ott, J. Sulphide ectosymbioses in shallow marine habitats. In: Uiblein, F., J. Ott, and M. Stachowitsch (Eds): Deep-sea and extreme shallow-water habitats: affinities and adaptions, Biosystematics and Ecology Series 11: 369-382 (1996).


Newell, R. & J. Ott. Macrobenthic Communities and Eutrophication. In: Malone, T.C., A. Malej, L.W. Harding jr., N. Smodlaka & R.E. Turner (Eds.): Ecosystems at the Land-Sea Margin: Drainage Basin to Coastal Sea. Coastal and Estuarine Studies vol. 55. American Geophysical Union,  Washington, D.C., pp. 265-293 (1999).


Ott, J. Chemoautotrophe Bakterien als Symbionten mariner Einzeller und wirbelloser Tiere. In: K. Schleifer (Ed.): Bedeutung der Mikroorganismen für die Umwelt. Rundgespräche der Kommission für Ökologie (Bayrische Akademie der Wissenschaften), Bd. 23, pp. 95-110. Friedrich Pfeil, München (2002).


Ott, J. Micrometazoa, p. 369-373. In: M. Denny and S. Gaines (Eds.) Encyclopedia of Tidepools and Rocky Shores. University of California Press, Berkeley, 705 pp (2007)




Ott, J. & T. Schwaha. Bryozoa. In: A. Schmidt-Rhaesa (Ed.) Guide to the Identification of Marine Meiofauna (2020)




Non-Peer reviewed publications

Velimirov, B. & J. Ott. Das Ökosystem der mediterranen Seegraswiesen. Begleitveröffentlichungen zum wissenschaftlichen Film C1786, Österreichisches Bundesinstitut für den Wissenschaftlichen Film, Wien. Wiss.Film Nr.34/35:48-51 (1986).


Ott, J. Prärien auf dem Meeresgrund. Schr. Ver. Verbr. naturwiss. Kenntnisse Wien 127: 177-198 (1989).


Ott, J. Nematoden und Bakterien: Eine Symbiose an der Grenze zwischen oxischen und anoxischen Lebensräumen. Biologie in unserer Zeit 23 (2): 127-132 (1993).


Ott, J. & M. Stachowitsch. Die Lebensräume des Meeres und ihre Gefährdung. Veröffentlichungen der Komission für Humanökologie der Österr. Akademie der Wissenschaften 4: 13-32 (1992).


Ott, J. Freibeutertum oder Management? Die Nutzung der Meere an der Wende. Praxis Geographie 36: 4-11 (2006).