Lorenzo Ciannelli

• Kajiya Endo, Clarissa Akemi; Stige, Leif Christian; Skogen, Morten D.; Ciannelli, Lorenzo & Vikebø, Frode Bendiksen (2022). Two decades of match-mismatch in Northeast Arctic cod – Feeding conditions and survival. Frontiers in Marine Science. ISSN 2296-7745. 9, s. 1–14. doi: 10.3389/fmars.2022.767290. Fulltekst i vitenarkiv
• Ciannelli, Lorenzo; Neuheimer, Anna B.; Stige, Leif Christian; Frank, Kenneth T.; Durant, Joël & Hunsicker, Mary E. [Vis alle 10 forfattere av denne artikkelen] (2021). Ontogenetic spatial constraints of sub-arctic marine fish species. Fish and Fisheries. ISSN 1467-2960. s. 1–16. doi: 10.1111/faf.12619. Fulltekst i vitenarkiv Vis sammendrag

  Climate change influences ecological processes and biogeochemical cycles of marine environments. Species may respond and adapt to these changes through shifting spatial distributions, but options may be limited by the required occupancy of essential habitats which are anchored in space. Marine fish species typically have complex life cycles composed of multiple life stages with different degrees of habitat preferences. Limited knowledge of when spatial constraints are most likely to occur in marine fish life cycles has impeded the development of realistic distribution forecasts. In this study, we develop and implement analytical techniques to identify spatial constraints, defined by both the consistency through which a particular geographic area is used year after year, and by the extent of such area with respect to the entire population range. This approach is applied to ten case studies including six groundfish species from the Eastern Bering Sea, three from the Scotian Shelf, and one from the Barents Sea. Our analyses illustrate that the early phase of the species’ life cycle is more spatially constrained than older life stages, and that adult stages are more closely associated with particular temperatures or climate velocities. We detected significant species-specific variability in both the degree to which species are anchored in space throughout their life cycle, and the ontogenetic changes of the geographic association. Some of this variability can be explained by the species life history strategy and this provides promising avenues to extend similar analyses to data poor species. The presence of life history spatial constraints, particularly during early life stages, indicates restrictions exist to changes of spatial distribution and thus questions the assertion that global warming will uniformly result in an increase of harvest at higher latitudes and decreases at lower latitudes. Species distribution models are often parameterized from data based on life stages that are highly variable in space, such as the adult stages during summer months which may result in unrealistic forecasts of distribution. Our study develops ecological and analytical insights that are critical for developing accurate projections of species distributions under different climate change scenarios.

• Litzow, Michael A; Ciannelli, Lorenzo; Puerta, Patricia; Wettstein, Justin; Rykaczewski, Ryan R. & Opiekun, Michael (2019). Nonstationary environmental and community relationships in the North Pacific Ocean. Ecology. ISSN 0012-9658. 100(8), s. 1–8. doi: 10.1002/ecy.2760.
• Stige, Leif Christian; Rogers, Lauren; Neuheimer, Anna B.; Hunsicker, Mary E.; Yaragina, Natalia A. & Ottersen, Geir [Vis alle 9 forfattere av denne artikkelen] (2019). Density‐ and size‐dependent mortality in fish early life stages. Fish and Fisheries. ISSN 1467-2960. 20(5), s. 962–976. doi: 10.1111/faf.12391. Fulltekst i vitenarkiv
• Litzow, Michael A; Ciannelli, Lorenzo; Puerta, Patricia; Wettstein, Justin; Rykaczewski, Ryan R. & Opiekun, Michael (2018). Non-stationary climate-salmon relationships in the Gulf of Alaska. Proceedings of the Royal Society of London. Biological Sciences. ISSN 0962-8452. 285(1890). doi: 10.1098/rspb.2018.1855.
• Fall, Johanna Jennifer Elisabeth; Ciannelli, Lorenzo; Skaret, Georg & Johannesen, Edda (2018). Seasonal dynamics of spatial distributions and overlap between Northeast Arctic cod (Gadus morhua) and capelin (Mallotus villosus) in the Barents Sea. PLOS ONE. ISSN 1932-6203. 13(10). doi: 10.1371/journal.pone.0205921. Fulltekst i vitenarkiv
• Langangen, Øystein; Ottersen, Geir; Ciannelli, Lorenzo; Vikebø, Frode Bendiksen & Stige, Leif Christian (2016). Reproductive strategy of a migratory fish stock: Implications of spatial variations in natural mortality. Canadian Journal of Fisheries and Aquatic Sciences. ISSN 0706-652X. 73(12), s. 1742–1749. doi: 10.1139/cjfas-2015-0321.
• Barceló, Caren; Ciannelli, Lorenzo; Olsen, Esben Moland; Johannessen, Tore & Knutsen, Halvor (2016). Eight decades of sampling reveal a contemporary novel fish assemblage in coastal nursery habitats. Global Change Biology. ISSN 1354-1013. 22(3), s. 1155–1167. doi: 10.1111/gcb.13047.
• Ciannelli, Lorenzo; Fisher, Jonathan A.D.; Skern-Mauritzen, Mette; Hunsicker, Mary E.; Hidalgo, Manuel & Frank, Kenneth T. [Vis alle 7 forfattere av denne artikkelen] (2013). Theory, consequences and evidence of eroding population spatial structure in harvested marine fishes: a review. Marine Ecology Progress Series. ISSN 0171-8630. 480, s. 227–243. doi: 10.3354/meps10067.
• Hunsicker, Mary E.; Ciannelli, Lorenzo; Bailey, Kevin M.; Buckel, Jeffrey A.; White, J. Wilson & Link, Jason S. [Vis alle 26 forfattere av denne artikkelen] (2011). Functional responses and scaling in predator-prey interactions of marine fishes: contemporary issues and emerging concepts. Ecology Letters. ISSN 1461-023X. 14(12), s. 1288–1299. doi: 10.1111/j.1461-0248.2011.01696.x.
• Brander, Keith; Botsford, Louis W.; Ciannelli, Lorenzo; Fogarty, Michael J.; Heath, Michael & Planque, B. [Vis alle 8 forfattere av denne artikkelen] (2010). Human impacts on marine ecosystems. I Barange, Manuel; Field, John G.; Harris, Roger P.; Hofmann, Eileen E.; Perry, R. Ian & Werner, Francisco (Red.), Marine Ecosystems and Global Change. Oxford University Press. ISSN 978-0-19955-802-5. s. 41–73.
• Ciannelli, Lorenzo; Knutsen, Halvor; Olsen, Esben Moland; Espeland, Sigurd Heiberg; Asplin, Lars & Jelmert, Anders [Vis alle 8 forfattere av denne artikkelen] (2010). Small-scale genetic structure in a marine population in relation to water circulation and egg characteristics. Ecology. ISSN 0012-9658. 91(10), s. 2918–2930. doi: 10.1890/09-1548.1.
• Hidalgo, Manuel; Massuti, Enric; Guijarro, Beatriz; Moranta, Joan; Ciannelli, Lorenzo & Lloret, Josep [Vis alle 8 forfattere av denne artikkelen] (2009). Population effects and changes in life history traits in relation to phase transitions induced by long-term fishery harvesting: European hake (Merluccius merluccius) off the Balearic Islands. Canadian Journal of Fisheries and Aquatic Sciences. ISSN 0706-652X. 66(8), s. 1355–1370. doi: 10.1139/F09-081.
• Ciannelli, Lorenzo; Fauchald, P; Chan, KS; Agostini, VN & Dingsør, Gjert Endre (2008). Spatial fisheries ecology: Recent progress and future prospects. Journal of Marine Systems. ISSN 0924-7963. 71. doi: 10.1016/j.jmarsys.2007.02.031.
• Knutsen, Halvor; Olsen, Espen Moland; Ciannelli, Lorenzo; Espeland, Sigurd Heiberg; Knutsen, Jan Atle & Simonsen, Jan Henrik [Vis alle 8 forfattere av denne artikkelen] (2007). Egg distribution, bottom topography and small-scale cod population structure in a coastal marine system. Marine Ecology Progress Series. ISSN 0171-8630. 333, s. 249–255. Fulltekst i vitenarkiv Vis sammendrag

  Coastal marine species with pelagic egg and larval stages, such as the Atlantic cod Gadus morhua, can be structured into genetically distinct local populations on a surprisingly small geographic scale considering their dispersal potential. Mechanisms responsible for such small-scale genetic structure may involve homing of adults to their natal spawning grounds, but also local retention of pelagic eggs and larvae. For example, spawning within sheltered fjord habitats is expected to favour local retention of early life stages. Here, we studied the distribution of cod eggs along inshore-offshore transects in 20 Norwegian fjords. The general pattern exhibited across all fjords was a higher concentration of cod eggs inside the fjords than further offshore. In particular, fjords with shallow sills (model threshold 37 m) show an abrupt reduction in egg density over the sill. This study provides empirical support for an offspring retention hypothesis, which may help to explain the maintenance of local population structure in pelagic marine systems.

• Dingsør, Gjert Endre; Ciannelli, Lorenzo; Chan, Kung-Sik; Ottersen, Geir & Stenseth, Nils Christian (2007). Density dependence and density independence during the early life stages of four marine fish stocks. Ecology. ISSN 0012-9658. 88(3), s. 625–634. doi: 10.1890/05-1782.
• Ciannelli, Lorenzo; Dingsør, Gjert Endre; Bogstad, Bjarte; Ottersen, Geir; Chan, Kung-Sik & Gjøsæter, Harald [Vis alle 8 forfattere av denne artikkelen] (2007). Spatial anatomy of species survival: Effects of predation and climate-driven environmental variability. Ecology. ISSN 0012-9658. 88(3), s. 635–646. doi: 10.1890/05-2035.
• Knutsen, Halvor; Olsen, Esben Moland; Ciannelli, Lorenzo; Espeland, Sigurd Heiberg; Knutsen, JA & Simonsen, JH [Vis alle 8 forfattere av denne artikkelen] (2007). Egg distribution, bottom topography and small-scale cod population structure in a coastal marine system. Marine Ecology Progress Series. ISSN 0171-8630. 333, s. 249–255.
• Ciannelli, Lorenzo; Bailey, KM; Chan, KS & Stenseth, Nils Christian (2007). Phenological and geographical patterns of walleye pollock (Theragra chalcogramma) spawning in the western Gulf of Alaska. Canadian Journal of Fisheries and Aquatic Sciences. ISSN 0706-652X. 64, s. 713–722. doi: 10.1139/F07-049.
• Stenseth, Nils Christian; Llope, M; Anadon, R; Ciannelli, Lorenzo; Chan, Kung-Sik & Hjermann, Dag Øystein [Vis alle 8 forfattere av denne artikkelen] (2006). Seasonal plankton dynamics along a cross-shelf gradient. Proceedings of the Royal Society of London. Biological Sciences. ISSN 0962-8452. 273, s. 2831–2838. doi: 10.1098/rspb.2006.3658.
• Stige, Leif Christian; Stave, Jørn; Chan, Kung-Sik; Ciannelli, Lorenzo; Pettorelli, Nathalie & Glantz, M [Vis alle 8 forfattere av denne artikkelen] (2006). The effect of climate variation on agro-pastoral production in Africa. Proceedings of the National Academy of Sciences of the United States of America. ISSN 0027-8424. 103(9), s. 3049–3053.
• Ciannelli, Lorenzo; Hjermann, Dag Øystein; Lehodey, P; Ottersen, Geir; Duffy-Anderson, J-T & Stenseth, Nils Christian (2005). Climate forcing, food-web structure and community dynamics, Aquatic Food Webs: an Ecosystem Approach. Oxford University Press. ISSN 0198564821. s. 143–169.
• Winter, A; Swartzman, G & Ciannelli, Lorenzo (2005). Early- to late-summer population growth and prey consumption by age-0 pollock (Theragra chalcogramma), in two years of contrasting pollock abundance near the Pribilof Islands, Bering Sea. Fisheries Oceanography. ISSN 1054-6006. 14.
• Ciannelli, Lorenzo; Bailey, K; Chan, Kung-Sik; Belgrano, A & Stenseth, Nils Christian (2005). Climate change causing phase transitions of walleye pollock (Theragra chalcogramma) recruitment dynamics. Proceedings of the Royal Society of London. Biological Sciences. ISSN 0962-8452. 272, s. 1735–1743.
• Bailey, K; Ciannelli, Lorenzo; Bond, N; Belgrano, A & Stenseth, Nils Christian (2005). Recruitment of walley pollock in a complex physical and biological ecosystem: a synthesis. Progress in Oceanography. ISSN 0079-6611. 67, s. 24–42.
• Porter, S. M.; Ciannelli, Lorenzo; Hillgruber, N; Bailey, K; Chan, Kung-Sik & Canino, MF [Vis alle 7 forfattere av denne artikkelen] (2005). Environmental factors influencing larval walleye pollock Theragra chalcogramma feeding in Alaskan waters. Marine Ecology Progress Series. ISSN 0171-8630. 302, s. 207–217.
• Duffy-Anderson, J-T; Bailey, Kevin; Ciannelli, Lorenzo; Cury, P; Belgrano, A & Stenseth, Nils Christian (2005). Phase transitions in marine fish recruitment processes. Ecological Complexity : An International Journal on Biocomplexity in the Environment and Theoretical Ecology. ISSN 1476-945X. 2(3), s. 205–218.
• Swartzman, G; Winter, A; Coyle, K; Brodeur, R; Buckley, T & Ciannelli, Lorenzo [Vis alle 9 forfattere av denne artikkelen] (2005). Relationship of age-0 pollock abundance and distribution around the Pribilof Island, to other shelf regions of the eastern Bering Sea. Fisheries Research. ISSN 0165-7836. 74(1-3), s. 273–287.
• Ciannelli, Lorenzo & Bailey, KM (2005). Landscape dynamics and resulting species interactions: the cod-capelin system in the southeastern Bering Sea. Marine Ecology Progress Series. ISSN 0171-8630. 291, s. 227–236.
• Ciannelli, Lorenzo; Bailey, Kevin; Chan, Kung-Sik & Stenseth, Nils Christian (2004). Non-additive effects of the environment on the survival of a large marine fish population. Ecology. ISSN 0012-9658. 85(12), s. 3418–3427.
• Ciannelli, Lorenzo; Robson, BJ; Francis, RC; Aydin, K & Brodeur, RD (2004). Foraging impact of age-0 walleye pollock (Theragra chalcogramma) around a frontal structure in the southeast Bering Sea. Marine Biology. ISSN 0025-3162. 144, s. 515–526.
• Ciannelli, Lorenzo; Robson, BW; Francis, RC; Aydin, K & Brodeur, RD (2004). Boundaries of open marine ecosystems: an application to the Pribilof Archipelago, southeast Bering Sea. Ecological Applications. ISSN 1051-0761. 14(3), s. 942–953.

Se alle arbeider i Cristin

• Stige, Leif Christian; Rogers, Lauren; Neuheimer, Anna B.; Hunsicker, Mary E.; Yaragina, Natalia A. & Ottersen, Geir [Vis alle 9 forfattere av denne artikkelen] (2019). Density- and size-dependent mortality in fish early life stages.
• Fall, Johanna Jennifer Elisabeth; Ciannelli, Lorenzo & Johannesen, Edda (2017). Environmental factors affecting the spatial distribution and overlap of cod and capelin in the Barents Sea.
• Hjermann, Dag Øystein; Hidalgo, Manuel; Eikeset, Anne Marie; Gusdal, Yvonne; Dingsør, Gjert Endre & Ciannelli, Lorenzo [Vis alle 11 forfattere av denne artikkelen] (2009). Nordøst-arktisk torsk: effekter av klima, fiskeri-indusert evolusjon og artsinteraksjoner gjennom torskens livssyklus.
• Hidalgo, Manuel; Gusdal, Yvonne; Dingsør, Gjert Endre; Ciannelli, Lorenzo; Hjermann, Dag Øystein & Ottersen, Geir [Vis alle 10 forfattere av denne artikkelen] (2009). Combining hydrographical particles-tracking models with spatial analyses to evaluate spatial dynamics of cod larvae and 0-group in the Barents Sea.
• Ciannelli, Lorenzo; Dingsør, Gjert Endre; Bogstad, Bjarte; Ottersen, Geir; Chan, Kung-Sik & Gjøsæter, Harald [Vis alle 7 forfattere av denne artikkelen] (2005). Spatial patterns of age-0 cod survival in the Barents Sea. International Council for the Exploration of the Sea (ICES) Copenhagen.

Se alle arbeider i Cristin