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Stamatina Isari

IMG 20141127 WA0000
Researcher
Telephone: 48210636
Department: Plankton

Senior Research Scientist

Plankton Research Group

Nordnesgaten 50, 5005 Bergen, Norway

 

Subjectarea

My research lies within the field of zooplankton and larval fish taxonomy and ecology. The study of key environmental factors governing mesozooplankton and fish larvae community structure has been one of my major research lines. My expertise in taxonomy and biological-physical coupling were initially developed through my research in the Mediterranean ecosystems using traditional taxonomic criteria. From 2015-2018, my research was extended to the Red Sea environment and incorporated the application of molecular techniques for species identification and biodiversity assessment.

I have additionally developed a parallel multi-year engagement in zooplankton eco-physiological studies, aiming to better understand the organismal responses to environmental parameters/stressors, the “bottom up” processes and overall trophic interactions in the planktonic food web. I have explored interactions between different trophic levels (phytoplankton, microzooplankton, mesozooplankton) aiming to gain a broad and in-depth understanding of the structure and function of marine planktonic environments.

In IMR, I am leading the plankton research (Theme 1) in the EAF-NANSEN project (Strengthening the Knowledge Base for and Implementing an Ecosystem Approach to Marine Fisheries in Developing Countries).

          

RESEARCH INTERESTS

  • Zooplankton and larval fish taxonomy
  • Ecology of marine mesozooplankton and fish larvae
  • Structure and functioning of the planktonic food web in the marine environment
  • Zooplankton ecophysiology
  • Impact of global climate change on planktonic communities
  • Feeding of zooplanktivorous small pelagic fish

Curriculum Vitae

EDUCATION

2004-2008: PhD in Biology, University of Patras, Greece (Thesis: Mesozooplankton and ichthyoplankton spatiotemporal distribution patterns in the N.E. Aegean Sea in relation to abiotic and biotic variables)

2000-2002: MSc in Environmental Biology and Management of Aquatic and Terrestrial Environments, University of Patras, Greece (Thesis: Mesozooplankton study in Ionian Sea and coastal waters of central Greece – Development of a digital identification key for mesozooplankton)

1996-2000: BSc in Biology, University of Patras, Greece (Thesis: Study of the zooplankton community of Koutavos lagoon and comparison with other lagoon ecosystems of western Greece)

 

POSITIONS

2018 – present:  Senior Research Scientist (Forsker 1183), Plakton Group, IMR Bergen

2015 – 2018:  Research Scientist, Red Sea Research Center (RSRC-KAUST), Kingdom of Saudi Arabia

2014 – 2015: Post-doctoral researcher, Hellenic Centre for Marine (HCMR), Institute of Oceanography, Athens, Greece

2009 – 2014:  Post-doctoral researcher, Institute of Marine Sciences-CSIC (ICM-CSIC), Department of Marine Biology & Oceanography, Barcelona, Spain

2008 – 2009:  Post-doctoral researcher, HCMR, Institute of Marine Biological Resources, Crete, Greece

 

PUBLICATION LIST

Saiz E., Griffell K., Isari S., Calbet A. (2023) Ecophysiological response of marine copepods to dietary elemental imbalances. Mar. Env. Res., Vol. 186, 1–10, DOI: https://doi.org/10.1016/j.marenvres.2023.10594

Tiedemann M., Ndour I., Ngom Sow F., Bagøien E., Krakstad J. O., Ostrowski M., Stenevik E. K., Ensrud T., Isari S. (2022) Asynchronized spawning responses of small pelagic fishes to a short term environmental change. Mar. Ecol. Prog. Ser., Vol. 696, 85–102, DOI: https://doi.org/10.3354/meps14122

Isari S., Pearman J.K., Casas L., Michell C.T., Curdia J., Berumen M.L., Irigoien X. (2017) Exploring the larval fish community of the central Red Sea with an integrated morphological and molecular approach. PLoS ONE 12(8): e0182503.

Alcaraz M., Calbet A., Isari S., Iriogien X., Trepat I., Saiz E. (2016) Variability of mesozooplankton biomass and individual size in a coast-offshore transect in the Catalan Sea: relationships with chlorophyll a and hydrographic features. Sci. Mar. 80S1: 79–87

Atienza D., Sabates A., Isari S., Saiz E., Calbet A. (2016) Environmental limits in the distribution of marine cladocerans in the NW Mediterranean: implications for global warming. J. Mar. Sys. 164: 30–41

Ptacnik R., Gomes A., Royer S.J., Berger S.A. , Calbet A., Nejstgaard J.C., Gasol J.M., Isari S., Moorthi S.D., Ptacnikova R., Striebel M, Sazhin A.F., Tsagaraki T.M., Zervoudaki S., Altoja K., Dimitriou P., Laas P., Gazihan Akoglu A., Martínez R.A., Schabhüttl S., Santi I., Sousoni D., Pitta P. (2016) A light-induced shortcut in the planktonic microbial food web. Sci. Rep. 6: 29286

Isari S., Zervoudaki S., Peters J., Papantoniou G., Pelejero C., Saiz E. (2016) Lack of evidence for elevated CO2-induced bottom-up effects on marine copepods: A dinoflagellate-calanoid prey-predator pair. ICES J Mar. Sci. 73(3): 650–658

Saiz E., Calbet A., Griffell K., Bersano J.G.F., Isari S., Solé M., Peters J., Alcaraz M. (2015) Ageing and caloric restriction in a marine planktonic copepod. Sci. Rep. 5: 14962

Isari S., Zervoudaki S., Saiz E., Pelejero C., Peters J. (2015) Copepod vital rates under CO2-induced acidification: a calanoid species and a cyclopoid species under short term exposures. J. Plankton Res. 37(5): 912–922

Saiz E., Griffell K., Calbet A., Isari S. (2014) Feeding rates and prey/predator size ratios of the nauplii and adult females of the marine cyclopoid copepod Oithona davisae. Limnol. Oceanogr. 59(6): 2077-2088

Isari S., Zervoudaki S., Calbet A., Saiz E., Ptacnikova R., Nejstgaard J.C., Sousoni D., Berger S.A., Ptacnik R. (2014) Light-induced changes on the feeding behaviour of the calanoid copepod Clausocalanus furcatus (Brady, 1883): evidence from a mesocosm study. J. Plankton Res. 36(5): 1233-1246

Heuschele J., Ceballos S., Andersen Borg C.M., Bjaerke O., Isari S., Lasley-Rasher R., Lindehoff E., Souissi A., Souissi S., Titelman J. (2014) Non-consumptive effects of predator presence on copepod reproduction: insights from a mesocosm experiment. Mar. Biol. 161:1653–1666

Martinez R.A., Isari S., Calbet A. (2014) Use of live, fluorescently-labelled algae for measuring microzooplankton grazing in natural communities. J. Exp. Mar. Biol. Ecol.  457: 59–70

Calbet A., Sazhin A.F., Nejstgaard J.C., Berger S.A. , Tait Z.S., Olmos L., Sousoni D., Isari S., Martínez R.A., Bouquet J.M., Thompson E.M., Båmstedt U., Jakobsen H.H. (2014) Future climate scenarios for a coastal productive planktonic food web resulting in microplankton phenology changes and decreased trophic transfer efficiency. PLoS ONE  9(4): e94388

Nikolioudakis N., Isari S., Somarakis S. (2014) Trophodynamics of anchovy in a non-upwelling system: Direct comparison with sardine. Mar. Ecol. Progr. Ser. 500: 215–229

Isari S., Antó M., Saiz E. (2013) Copepod foraging on the basis of food nutritional quality: Can copepods really choose? PLoS ONE  8 (12): e84742

Calbet A., Isari S., Martínez R.A., Saiz E., Garrido S., Peters J., Borrat R.M., Alcaraz M. (2013) Adaptations to feast and famine in different strains of the marine heterotrophic dinoflagellates Gyrodinium dominans and Oxyrrhis marinaMar. Ecol. Progr. Ser. 483: 67–84

Saiz E., Calbet A., Isari S., Antó M., Velasco E.M., Almeda R., Movilla J., Alcaraz M. (2013) Zooplankton distribution and feeding in the Arctic Ocean during a Phaeocystis pouchetii bloom. Deep-Sea Res. Pt I 72: 17–33

Calbet A., Martínez R.A., Isari S., Zervoudaki S., Nejstgaard J.C., Pitta P., Sazhin A.E, Sousoni S., Gomes A., Berger S.A., Tsagaraki T.M., Ptacnik R. (2012) Effects of light availability on mixotrophy and microzooplankton grazing in an oligotrophic plankton food web: evidences from a mesocosm study in Eastern Mediterranean waters. J. Exp. Mar. Biol. Ecol. 424–425: 66–77

Nikolioudakis N., Isari S., Pitta P., Somarakis S. (2012) Diet of sardine Sardine pilchardus: An “end to end” field study. Mar. Ecol. Progr. Ser. 453: 173–188

Somarakis S., Isari S., Machias A. (2011) Larval fish assemblages in coastal waters of central Greece: reflections of topographic and oceanographic heterogeneity. Sci. Mar. 75(3): 605-618

Isari S., Saiz E. (2011) Feeding performance of the copepod Clausocalanus lividus (Frost and Fleminger 1968). J. Plankton Res. 33(5): 715–728

Isari S., Somarakis S., Christou E.D., Fragopoulu N. (2011) Summer mesozooplankton assemblages in the northeastern Aegean Sea: The influence of Black Sea water and an associated anticyclonic eddy (the Samothraki gyre). J. Mar. Biol. Assoc. U.K 91 (1): 51–63

Isari S., Fragopoulu N., Somarakis S. (2008) Interannual variability in horizontal patterns of larval fish assemblages in the northeastern Aegean Sea (Eastern Mediterranean) during early summer. Est. Coast. Shelf Sci. 79(4): 607–619

Isari S., Psarra S., Pitta P., Mara P., Tomprou M.O., Ramfos A., Somarakis S. Tselepides A., Koutsikopoulos C., Fragopoulu N. (2007) Differential patterns of mesozooplankters’ distribution in relation to physical and biological variables of the Northeastern Aegean Sea (eastern Mediterranean). Mar. Biol.151: 1035–1050

Isari S., Ramfos A., Somarakis S., Koutsikopoulos C., Kallianiotis A., Fragopoulu N. (2006) Mesozooplankton distribution in relation to hydrology of the Northeastern Aegean Sea (Eastern Mediterranean). J. Plankton Res. 28(3): 241–255

Ramfos A., Isari S., Somarakis S., Georgopoulos D., Koutsikopoulos C., Fragopoulu N. (2006) Mesozooplankton community structure in offshore and coastal waters of the Ionian Sea (eastern Mediterranean) during mixed and stratified conditions. Mar. Biol. 150: 29–44

 

Publications

Academic articles

2023

Ecophysiological response of marine copepods to dietary elemental imbalances

Enric Saiz, Kaiene Griffell, Stamatina Isari, Albert Calbet
Marine Environmental Research 186 p. 1-10
2022

Asynchronized spawning responses of small pelagic fishes to a short-term environmental change

Maik Tiedemann, Ismaïla Ndour, Fambaye Ngom Sow, Espen Bagøien, Jens-Otto Krakstad, Marek Ostrowski, Erling Kåre Stenevik, Tor Magne Ensrud, Stamatina Isari
Marine Ecology Progress Series 696 p. 85-102

Scientific lectures

2023

Distribution of mesozooplankton community along the Canary Current Large Marine Ecosystem

Yassine Goliat, Omar Etahhiri, Tarik Baibai, Said Charib, Nadia Rharbi, Stamatina Isari
International Scientific Symposium on the Canary Current Large Marine Ecosystem (CCLME), Guinea-Bissau, 20-22 November 2023
2022

Anchovy and sardinella reproduction are regulated by upwelling and relaxation conditions in the southern Canary Current ecosystem

Maik Tiedemann, Ismaïla Ndour, Fambaye Ngom Sow, Espen Bagøien, Jens-Otto Krakstad, Marek Ostrowski, Erling Kåre Stenevik, Tor Magne Ensrud, Stamatina Isari
Meeting of the ICES Working Group on Atlantic Larvae and Egg Surveys
2019

Regional Training Workshop: Identification of Zooplankton and Fish Larvae of the Western Indian Ocean

Margareth S. Kyewalyanga, Jenny A. Huggett, Stamatina Isari, James M. Mwaluma
Training workshop, Institute of Marine Sciences - University of Dar es Salaam (Zanzibar)
2019

Plankton research onboard RV Dr Fridtjof Nansen in the Western Indian Ocean

Stamatina Isari, Jenny A. Huggett, Margareth S. Kyewalyanga, Ceica Chioze, Lorence A. Vidot, Jérôme Harlay, Riaan Cedras, Johan C. Groeneveld
Western Indian Ocean Marine Science Association Scientific Symposium (Mauritius)
2019

Microplastics recordings from surface water at Myanmar 2018 during the EAF Nansen survey

Htun Thein, Stamatina Isari, Ørjan Bjorøy, Bjørn Einar Grøsvik
Workshop on plastic pollution in the Ayeyarwady River (Myanmar)
2018

The salinity/density gradient column system measure buoyancy in live fish eggs

Svein Sundby, Stamatina Isari
Lecture for cruise members onboard R/V "Dr. Fridtjof Nansen"

Poster

2023

A comparison of ichthyoplankton assemblages collected with different nets during autumn off North-West Africa (Cap Blanc-Cap Bojdour)

Omaima Mouiret, Hinde Abdelouahab, Stamatina Isari, Omar Ettahiri, Tarik Baibai, Soukaina Aamer, Ahmed Errhif
International Scientific Symposium on the Canary Current Large Marine Ecosystem (CCLME), Guinea-Bissau, 20-22 November 2023
2022

Spatial Distribution of Microplastics in Surface Waters in the Bay of Bengal

Bjørn Einar Grøsvik, Ashoke Werakoon, Agnethe Hertzberg, Stamatina Isari, Htun Thein, Suo Myo Thwe, Tasawan Khawesejan, Sarah Bruck, Michael Bank, Paul Budgel, Marek Ostrowski, Peter Kershaw, Svein Sundby
7th International Marine Debris Conference (7IMDC)
2022

Spatial Distribution of Microplastics in Surface Waters in the Bay of Bengal

Grøsvik Bjørn, Weerakoon WRWMAP, Hertzerg Agnethe, Isari Stamatina, Thein Htun, Myo Su, Khawesejan Tasawan, Bruck Sarah, Bank Michael S., Budgel Paul, Ostrowski Marek, Kershaw Peter, Sundby Svein
7th International Marine Debris Conference (18-23 September 2022, Busan, Republic of Korea)
2021

The rod-like cone retina of mesopelagic fish larvae suggests a new visual developmental pathway in vertebrates

Fogg L., Cortesi F., Isari S., Marshall J., Busseroles F. D.
16th Deep Sea Biology Symposium (12-17 September, Brest, France)

Reports and dissertations

2020

Mapping of Fish Spawning in the North Sea; Report of the “KINO-2” Project for 2019

Alejandro Mateos-Rivera, Bahar Mozfar, Rasmus Skern-Mauritzen, Geir Dahle, Henning Wehde, Lisbeth Kleppe, Svein Sundby, Anders Thorsen, Lars Asplin, Stamatina Isari, Bjørn Arne Krafft
2019

MESOPELAGIC TRANSECT: Northwest Africa – Canary Basin

Nikolaos Nikolioudakis, Kamal Mamza, Stamatina Isari, Marek Ostrowski, David Cervantes, Ines Bernardes, Sara Zamora-Terol, Mohammed Idrissi, Abdoulaye Sarre
CRUISE REPORTS DR FRIDTJOF NANSEN EAF-Nansen/CR/2019/15
2019

TRANSBOUNDARY DEMERSAL AND PELAGIC RESOURCES AND ECOSYSTEMS IN THE WESTERN GULF OF GUINEA: Ghana and Côte d’Ivoire

Nikos Nikolioudakis, Hawa Bint Yaqub, Tapé Gnahoré Toussaint Joanny, Stamatina Isari, Tor Magne Ensrud ,Theophilus Annan
CRUISE REPORTS DR FRIDTJOF NANSEN EAF-Nansen/CR/2019/8
2019

TRANSBOUNDARY DEMERSAL SURVEY IN THE SOUTHEAST ATLANTIC: Namibia

Ester Nangolo, Kathrine Michalsen, Virgilio Estevão, Diana Zaera-Pérez, Sarah A. Bruck, Heidi Gabrielsen, Marek Ostrowski, Stamatina Isari, Lessyn Kalwenya, Johny Gamatham, Tarah Mbangula, Timoteus Kadhila, Thusnelde Ngutjinazo, Leevi Mwaala, Beat Gasser4, Bernardo Fernandes Moises, Arariky Shikongo5, Guilherme Camarada, Blessing Kamwi, Santos Joao Gouveia Eusebio Dias, Malakia Shimhanda, Saskia Kisting, Pedro Panzo, José Amaro Francisco, Sténia Isais da Costa, Irene Moçambique, Geraldina José
CRUISE REPORTS DR FRIDTJOF NANSEN EAF-Nansen/CR/2019/5
2019

MESOPELAGIC TRANSECT : Walvis Bay – Walvis Ridge, Namibia

Bjørn Erik Axelsen, Janet Coetzee, Mark Gibbons, Stamatina Isari, Sara Zamora Terol1
CRUISE REPORTS “DR. FRIDTJOF NANSEN”
2019

TRANSBOUNDARY DEMERSAL SURVEY IN THE SOUTHEAST ATLANTIC. South Africa

Jens-Otto Krakstad, Nikolaos Nikolioudakis, David Cervantes, Stamatina Isari, Yonela Geja, Lungelwa Nomxego, Pieter Gideon Hermanus Kotze
CRUISE REPORTS DR FRIDTJOF NANSEN EAF-Nansen/CR/2019/2
2019

Mapping of fish spawning in the North Sea — Report of the KINO-2 project for 2018

Alejandro Mateos-Rivera, Bahar Mozfar, Rasmus Skern-Mauritzen, Geir Dahle, Henning Wehde, Lisbeth Kleppe, Svein Sundby, Anders Thorsen, Bjørghild Breistein Seliussen, Lars Asplin, Gaston Ezequiel Aguirre, Stamatina Isari, Bjørn Arne Krafft
2018

SURVEY OF THE FISHERY RESOURCES AND ECOSYSTEM OFF SOUTHEAST AFRICA. MOZAMBIQUE

Jens-Otto Krakstad, Bjørn Erik Axelsen, Rui Mutombene, Sarah Ann Bruck, Tor Magne Ensrud, David Cervantes , Stamatina Isari, Nikolaos Nikolioudakis
CRUISE REPORTS DR FRIDTJOF NANSEN EAF-Nansen/CR/2018/2
2018

SURVEY OF FISHERY RESOURCES AND ECOSYSTEMS OF THE BAY OF BENGAL

Kathrine Michalsen, Htun Thein, Merete Kvalsund, Stamatina Isari, Tor Ensrud and Svein Sundby
CRUISE REPORTS DR FRIDTJOF NANSEN EAF-Nansen/CR/2018/11
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