Publications

Most peer-reviewed publications of the research group are available online (e.g. ResearchGate). Some articles and reports are stored in the Open Access archives of the University of Turku. Publications may also be inquired directly from the research group.

Peer-reviewed publications

  1. Hänninen, J., Mäkinen, K., Rajasilta, M. & Vuorinen, I. (2020). Baltic Sea river runoff and the adjacent North Sea silica concentrations . Estuarine, Coastal and Shelf Science (In press).
  2. Rajasilta, M., Hänninen, J., Laaksonen, L., Laine, P., Suomela, J. P., Vuorinen, I., & Mäkinen, K. (2018). Influence of environmental conditions, population density, and prey type on the lipid content in Baltic herring (Clupea harengus membras) from the northern Baltic Sea. Canadian Journal of Fisheries and Aquatic Sciences, (999), 1-10.
  3. Mäkinen, K., Elfving, M., Hänninen, J., Laaksonen, L., Rajasilta, M., Vuorinen, I., & Suomela, J. P. (2017). Fatty acid composition and lipid content in the copepod Limnocalanus macrurus during summer in the southern Bothnian Sea. Helgoland Marine Research, 71(1), 11.
  4. Mäkinen K, Vuorinen I, Hänninen J (2017) Climate-induced hydrography change favors small-bodied zooplankton in a coastal ecosystem. Hydrobiologia. Doi: 10.1007/s10750-016-3046-6.
  5. Rajasilta, M., Elfving, M., Hänninen, J., Laine, P., Vuorinen, I., & Paranko, J. (2016). Morphological abnormalities in gonads of the Baltic herring (Clupea harengus membras): Description of types and prevalence in the northern Baltic Sea. Ambio, 45(2), 205-214.
  6. Hänninen, J., Vuorinen, I., Rajasilta, M., Reid, P.C. (2015) Response of the Baltic and North Seas to River Runoff from the Baltic Watershed–Physical and Biological changes. Progress in Oceanography 138:91-104.
  7.  Vuorinen, I., Hänninen, J., Rajasilta, M., Laine, P., Eklund, J., Montesino-Pouzols, F., … & Dippner, J. W. (2015). Scenario simulations of future salinity and ecological consequences in the Baltic Sea and adjacent North Sea areas–implications for environmental monitoring. Ecological indicators, 50, 196-205.
  8.  Rajasilta, M., Eklund, J., Hänninen, J., Vuorinen, I., & Laine, P. (2015). Female Baltic herring Clupea harengus allocate resources from growth to reproduction in poor feeding conditions. Journal of Fish Biology, 86(2), 575-591.
  9. Rajasilta, M., Hänninen, J., & Vuorinen, I. (2014). Decreasing salinity improves the feeding conditions of the Baltic herring (Clupea harengus membras) during spring in the Bothnian Sea, northern Baltic. ICES Journal of Marine Science, 71(5), 1148-1152.
  10. Rajasilta, M., Laine, P., & Paranko, J. 2010. Current growth, fat reserves and somatic condition of juvenile Baltic herring (Clupea harengus membras) reared in different salinities. Helgoland marine research, 65(1), 59.
  11. Rajasilta, M., Laine, P. & Eklund, J. 2006. Mortality of herring eggs on different algal substrates (Furcellaria spp. and Cladophora spp.) – an experimental study. Hydrobiologia 554: 127-130. DOI 10.1007/s10750-005-1012-9.
  12. Hakala, T., Viitasalo, M., Rita, H., Aro, E., Flinkman, J. & Vuorinen, I. 2003. Temporal and spatial variation in the growth rates of Baltic herring (Clupea harengus membras L.) larvae during summer. Marine Biology 142: 25–33.
  13. Rajasilta, M. , P. Laine & J. Hänninen. 2001. Ovarian weight of the Baltic herring (Clupea harengus membras) in relation to spawning time in the Archipelago Sea, Northern Baltic. – ICES J.Mar.Sci. 58: 106-113.
  14. Kääriä. J., Aneer, G., Eklund, J., Jönsson, N., Naarminen, M. & Rajasilta, M. 2001. A tagging experiment on spring-spawning Baltic herring (Clupea harengus membras) in southwestern Finland in 1990-1998. pp 599-609 In: Herring: Expectations for a new millennium. (Eds. F.Funk, J. Blackburn, D. Hay, A. J. Paul, R. Stephenson, R. Toresen & D. Witherell). University of Alaska Sea Grant, 800 pp.
  15. Eklund, J., Rajasilta, M. & Laine, P. 2001. Baltic herring growth pattern in relation to spawning time. – pp 155-169 In: Herring: Expectations for a new millennium. (Eds. F.Funk, J. Blackburn, D. Hay, A. J. Paul, R. Stephenson, R. Toresen & D. Witherell). University of Alaska Sea Grant, 800 pp.
  16. Rajasilta, M. Eklund, J., Laine, P., Jönsson, N. & Lorenz, T. 1999. Intensive monitoring of spawning populations of the Baltic herring (Clupea harengus membras L.). Final report of the study EU 96-068.74 p + annexes.
  17. Laine, P. 1999. Paternal effects on the hatching success of Baltic herring eggs. ICES J. Mar. Sci. 56 (Suppl.): 142-146.
  18. Laine, P. & Rajasilta, M. 1999. The hatching success of Baltic herring eggs and its relation to female condition. J. Exp. Mar. Biol. Ecol. 237: 61-73.
  19.  Laine, P., Eklund, J. & Soikkeli, M. 1998. Reproduction of Baltic herring after dissimilar growth and overwintering seasons. Ophelia 48: 155–165.
  20. Laine, P. & Rajasilta, M. 1998. Changes in the reproductive properties of Baltic herring females during the spawning season. – Fisheries Research 36: 67-73.
  21. Griffin, F.J., Pillai, M. C., Vines, C. A., Kääriä, J., Hibbard-Robbins, T., Yanagimachi, R. & Cherr, G. N. 1998. Effects of salinity on sperm motility, fertilization, and development in the Pacific herring, Clupea pallasi. Biol. Bull. 194: 25-35.
  22.  Kääriä, J., Rajasilta, M., Kurkilahti, M. & Soikkeli, M. 1997. Spawning bed selection by the Baltic herring (Clupea harengus membras) in the Archipelago Sea of SW Finland. – ICES J. mar. Sci. 54: 917-923.
  23. Rajasilta, M., Paranko, J. & Laine, P. 1997. Reproductive characteristics of the male herring in the northern Baltic Sea. – J. Fish. Biol. 51: 978-988.
  24.  Rajasilta, M., Eklund, J. Hänninen, J., Kurkilahti, M., Kääriä, J. Rannikko, P. & Soikkeli, M. 1993. Spawning of herring (Clupea harengus membras L.) in the Archipelago Sea. – ICES J. mar. Sci. 50: 233-246.
  25. Rajasilta, M. 1992. Relationship between food, fat, sexual maturation and spawning time of Baltic herring (Clupea harengus membras) in the Archipelago Sea. Can. J. Fish. Aquat. Sci. 49: 644-654.
  26. Rajasilta, M., Eklund, J., Kääriä, J. & Ranta-aho, K. 1989. The deposition and mortality of the eggs of the Baltic herring, Clupea harengus membras L., on different substrates in the south-west archipelago of Finland. – J. Fish. Biol. 34: 417-427.
  27. Kääriä, .J, Eklund, J., Hallikainen, S., Kääriä, R., Rajasilta, M., Ranta-aho, K. & Soikkeli, M. 1988. Effects of coastal eutrophication on the spawning grounds of the Baltic herring in the SW Archipelago of Finland. Kieler Meeresforsch. Sonderh. 6: 348–356.
  28. Rajasilta, M., Kääriä, J., Eklund, J. & Ranta-aho, K. 1986. Reproduction of the Baltic herring (Clupea harengus membras L.) in the sea area of Turku, SW Finland. Ophelia (4): 339–343

Theses

  • Mäkinen, Katja. 2019. Climate-induced Variability in Northern Baltic Sea Zooplankton – Assessing Driving Forces and Effects on Higher Trophic Levels. Annales Universitatis Turkuensis Ser 358. University of Turku, Turku. PhD dissertation. Pdf.
  • Sahlsten, Johannes. 2019. Corynosoma-suvun väkäkärsämatojen esiintyminen Saaristomeren ja Selkämeren silakoissa.  University of Turku, Turku. Bachelor’s thesis.
  • Elfving, Mikael. 2017. Long term changes in sex ratio and reproductive effort in the Baltic herring (Clupea harengus membras) in the south-western archipelago of Finland. University of Turku, Turku. Master’s thesis.
  • Laaksonen, Lea. 2014 Itämeren makeutumisen vaikutus silakan ja silakan ravinnon rasvahappokoostumukseen. Opinnäytetyö (AMK). Bio- ja elintarviketekniikka. Biotekniikka.
  • Laine, Päivi. 2003. Regulation of reproduction in Baltic herring – individual effort meets the environment. Annales Universitatis Turkuensis Ser AII TOM 166. University of Turku, Turku. PhD dissertation.
  • Kääriä, Juha. 1999. Reproduction of the Baltic herring (Clupea harengus membras L.): Factors affecting the selection of spawning beds in the Archipelago Sea, in SW Finland. University of Turku, Turku. PhD dissertation.
  • Rannikko, Petri. 1998. Pyyntiajan ja -paikan merkitys silakan ominaisuuksien vaihtelussa
    Airiston alueella = The influence of catching site and time on the properties of Baltic herring in the Airisto area. University of Turku, Turku. Master’s thesis.
  • Sorakunnas, Esko. 1996. Silakanpoikasten (Clupea Harengus Membras L.) esiintyminen
    litoraalissa Pohjois-Airistolla = Prevalence of Baltic herring larvae in the littoral zone in the
    SW Finland, northern Baltic Sea. University of Turku, Turku. Master’s thesis.
  • Rajasilta, Marjut. 1992. Timing of spawning in the Baltic herring (Clupea harengus membras) in the Archipelago Sea, SW Finland: regulatory mechanisms and consequences for offspring production. Annales Universitatis Turkuensis. Ser. A.II. 81. University of Turku, Turku. PhD dissertation.
  • Laine, Päivi. 1991. Lisääntymisajankohdan, naaraan koon ja kunnon vaikutus silakan
    (Clupea herengus membras L.) mätimunien määrään ja laatuun. University of Turku, Turku. Master’s thesis.
  • Kääriä, Juha. 1990. Silakan (Clupea harengus membras L.) kutuparvien rakenteesta,
    lisääntymisen ajoittumisesta ja intensiteetistä Turun edustan merialueella. University of Turku, Turku. Master’s thesis.

Posters, conference papers and abstracts

  • Rajasilta, M., Hänninen, J., Laaksonen, L., Laine, P., Suomela, J. P., Vuorinen, I., & Mäkinen, K. 2018. Environmental conditions, population density, and prey type influence the lipid reserves of Baltic herring in the northern Baltic Sea. (Pdf).
  • Elfving, M., Hänninen, J., Laine, P., Rajasilta, M., Vuorinen, I., & Paranko, J. 2016. Morphological abnormalities in gonads of the Baltic herring (Clupea harengus membras) in the northern Baltic Sea. (Pdf)
  • Laine P., Eklund J., Lahdes E., Parmanne R., and Rajasilta M. 2011: Success of reproduction in the Baltic herring: connections between maternal properties, environmental conditions, and herring fishery. Poster presented at the 2011 ICES Annual Science Conference, Gdansk, Poland (Theme Session H: Recruitment processes: Early life history dynamics – from eggs to juveniles). ICES CM Documents 2011. ISBN 978-87-7482-093-2.
  • Rajasilta, M., Laine, P. & Paranko, J. 2009. Feeding, somatic condition and growth of Baltic herring juveniles in different salinities. Poster presented at the 7th Baltic Sea Science Congress, 2009, Tallinn, Estonia.
  • Vahteri, P. & Vuorinen, I. 2001. The crash in Baltic herring (Clupea harengus membras L.) reproduction – a case study in the northern Airisto spawning grounds, Archipelago Sea S-W Finland. Baltic Sea Science Congress 2001, Abstract Volume. Stockholm University, Stockholm, Sweden.
  • Laine, P., Pajunen, I. & Soikkeli, M. 1997. Giant herrings in the Archipelago Sea – a group of fast-growing cannibals. In: Andrushaitis A (Ed.). Proceedings of the 13th BMB Symposium, Institute of Aquatic Ecology, University of Latvia, pp 193–195.
  • Rajasilta, M., Kääriä, J. Laine, P., Pajunen, I. & Soikkeli, M. 1996. Is the spawning of the herring in the Northern Baltic influenced by mild winters? – Proceedings of the 13th Symposium of the Baltic Marine Biologists: 185-191.

Study reports and other related publications (selected examples)

  • Johannes Sahlsten & Jari Hänninen (2020) “Silakan loismatojen esiintyminen, isäntälajit ja vaikutus Saaristomeren elinkeinokalatalouteen”. Project report (In Finnish).
  • Marjut Rajasilta, Jari Hänninen & Katja Mäkinen (2019) “Silakka kertoo muutoksesta” Suomen kalastuslehti 2/2019. (In Finnish).
  • ​Katja Mäkinen, Marjut Rajasilta(2019) “Silakassa havaittu loismatoja” Suomen kalastuslehti 2/2019. (In Finnish).
  • Rajasilta, M.,Hänninen, J. & Mäkinen, K. 2019. Vad Har Strömmingen att berättä? Fisketidskrift för Finland 1/2019. (In Swedish).
  • ​Mäkinen K. & Rajasilta, M.2018. Parasiterande hakmaskar i strömming. Fisketidskrift för Finland 4/2018. (In Swedish).
  • Rajasilta, M. & Vuorinen, I. 2008. Suomen murtovesialueen eläinplankton -määritysopas. SEILI Archipelago Research Institute Publications 5. 66 s. ISBN 978-951-29-3829-2. Identification manual (In Finnish).
  • Rajasilta, M. & Aneer, G. (Eds.) 2006. Herring spawning and spawning grounds in the northern Baltic Sea: present knowledge and recommendations for regular monitoring. Study report, Nordic Council of Ministers. 65 p.
  • Kohonen T., Vahteri P., Helminen U., Sihvonen M., Vuorinen I. 2004. Kalojen lisääntymisalueet Saaristomerellä. SEILI Archipelago Research Institute Publications 2. (Annexes). (In Finnish).
  • Rajasilta, M. 1982. Laivaliikenteen vaikutukset kaloihin ja kalastukseen Saaristomerellä. Turun yliopiston Biologian laitoksen julkaisuja n:o 4. (In Finnish).
  • Rajasilta, M. & Ranta-aho, K. 1981. Alustavia tuloksia silakan mätitiheydestä, mädin esiintymissyvyydestä ja kehityksestä pohjoisella Airistolla. Suomen Kalastuslehti, 8: 232–234. (In Finnish).