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John Tyler Trochta

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Researcher
Telephone: 55238500
Department: Bunnfisk
Publications

Publications

Academic articles

2023

Temporal, environmental, and demographic correlates of Ichthyophonus sp. infections in mature Pacific herring populations

M. L. Groner, E. D. Bravo-Mendosa, A. H. MacKenzie, J. L. Gregg, C. M. Conway, J. T. Trochta, P. K. Hershberger
ICES Journal of Marine Science 80 p. 2342–2355
2023

Arctic Fisheries Working Group (AFWG; outputs from 2022 meeting)

Daniel Howell, Jane Aanestad Godiksen, Caroline Aas Tranang, Erik Berg, Matthias Bernreuther, Bjarte Bogstad, Olav Nikolai Breivik, Jose Miguel Casas, Laura Clain, Elise Eidset, Elena Eriksen, Johanna Jennifer Elisabeth Fall, Maria Fossheim, Harald Gjøsæter, Sofie Gundersen, Elvar Halldor Hallfredsson, Hannes Höffle, Edda Johannessen, Kjell Harald Nedreaas, Anders Nielsen, Georg Skaret, Arved Staby, Brian Stock, Samuel Subbey, Ross Tallman, John Tyler Trochta, Tone Vollen, Kristin Windsland
ICES Scientific Reports 5 p. 1-507
2022

A novel approach for directly incorporating disease into fish stock assessment: a case study with seroprevalence data

Trochta, J.T., Groner, M.L., Hershberger, P.K., Branch, T.A.
Canadian Journal of Fisheries and Aquatic Sciences 79 p. 611-630
2021

Applying Bayesian model selection to determine ecological covariates for recruitment and natural mortality in stock assessment

John Tyler Trochta, Trevor A Branch
ICES Journal of Marine Science 78 p. 2875-2894
2020

The highs and lows of herring: A meta-analysis of patterns and factors in herring collapse and recovery

Trochta, J.T., Branch, T.A., Shelton, A.O., Hay, D.E.
Fish and Fisheries 21 p. 639-662
2018

Ecosystem-based fisheries management: Perception on definitions, implementations, and aspirations

Trochta, J.T., Pons, M., Rudd, M.B., Krigbaum, M., Tanz, A., Hilborn, R.
PloS one 13
2017

Evaluating signals of oil spill impacts, climate, and species interactions in Pacific herring and Pacific salmon populations in Prince William Sound and Copper River, Alaska.

Ward, E.J., Adkison, M., Couture, J., Dressel, S.C., Litzow, M.A., Moffitt, S., Neher, T.H., Trochta, J., Brenner, R.
PloS One
2015

Remote sensing of physical cycles in Lake Superior using a spatio-temporal analysis of optical water typologies.

Trochta, J.T., Mouw, C.B., Moore, T.S.
Remote Sensing of Environment 171 p. 149-161

Reports and dissertations

2024

Joint Norwegian-Russian Fisheries Commission request to establish a management plan for capelin in the Barents Sea (subareas 1 and 2 excluding Division 2.a west of 5°W)

John Tyler Trochta, Bjarte Bogstad, Yury Kovalev, Dmitri Prozorkevich, Georg Skaret, Sindre Vatnehol, Daniel Howell
IMR/PINRO Joint Report Series
2024

Assessment report for northern shrimp (Pandalus borealis) in the Barents Sea (ICES Subareas 1 and 2)

Fabian Zimmermann, Hanna Ellerine Helle Danielsen, Johanna Bjånes Marcussen, John Tyler Trochta, Georgina Vickery, Siri Aaserud Olsen, Erik Berg, Aleksei Stesko, sergei Bakanev
IMR/PINRO Joint Report Series
2024

Advice on fishing opportunities for Northeast Arctic cod in 2025 in ICES subareas 1 and 2

Daniel Howell, Anders Nielsen, Brian Stock, Ono Kotaro, Laura Clain, Maria Fossheim, Thomas de Lange Wenneck, Alf Harbitz, Alfonso Perez-Rodriguez, Ane Iriondo, Arved Staby, Bjarte Bogstad, Berengere Husson, C. Tara Marshall, Caroline Aas Tranang, Edda Johannesen, Eduardas Vozgirdas, Elena Eriksen, Elise Eidset, Elvar Halldor Hallfredsson, Erik Berg, Georg Skaret, Hannes Höffle, Jan Arge Jacobsen, Jan Erik Stiansen, Jane Aanestad Godiksen, Johanna Jennifer Elisabeth Fall, John Tyler Trochta, Jon Ruiz Gondra, José Miguel Casas Sanchez, Kjell Harald Nedreaas, Kordian Trella, Kristin Windsland, Magnus Aune, Matthias Bernreuther, Mikko Vihtakari, Olav Nikolai Breivik, Ricardo Alpoim, Ross Tallman, Samuel Subbey, Silje Elisabeth Seim, Sofie Gundersen, Sondre Nedreås Hølleland, Stine Karlson, Tone Vollen
IMR/PINRO Joint Report Series
2024

Advice on fishing opportunities for Greenland halibut in 2025 and 2026 in ICES subareas 1 and 2

Daniel Howell, Anders Nielsen, Brian Stock, Ono Kotaro, Laura Clain, Maria Fossheim, Thomas de Lange Wenneck, Alf Harbitz, Alfonso Perez-Rodriguez, Ane Iriondo, Arved Staby, Bjarte Bogstad, Berengere Husson, C. Tara Marshall, Caroline Aas Tranang, Edda Johannesen, Eduardas Vozgirdas, Elena Eriksen, Elvar H. Hallfredsson, Erik Berg, Georg Skaret, Hannes Höffle, Jan Arge Jacobsen, Jane Aanestad Godiksen, Johanna Jennifer Elisabeth Fall, John Tyler Trochta, Jon Ruiz Gondra, José Miguel Casas Sanchez, Kjell Harald Nedreaas, Kordian Trella, Kristin Windsland, Magnus Aune, Matthias Bernreuther, Mikko Vihtakari, Olav Nikolai Breivik, Ricardo Alpoim, Ross Tallman, Samuel Subbey, Silje Elisabeth Seim, Sofie Gundersen, Sondre Nedreås Hølleland, Stine Karlson, Tone Vollen
IMR/PINRO Joint Report Series
2024

Advice on fishing opportunities for Northeast Arctic haddock in 2025 in ICES subareas 1 and 2

Daniel Howell, Anders Nielsen, Brian Stock, Kotaro Ono, Laura Clain, Maria Fossheim, Thomas de Lange Wenneck, Alf Harbitz, Alfonso Perez-Rodriguez, Ane Iriondo, Arved Staby, Bjarte Bogstad, Berengere Husson, C. Tara Marshall, Caroline Aas Tranang, Edda Johannesen, Eduardas Vozgirdas, Elena Eriksen, Elise Eidset, Elvar Halldor Hallfredsson, Erik Berg, Georg Skaret, Hannes Höffle, Jan Arge Jacobsen, Jan Erik Stiansen, Jane Aanestad Godiksen, Johanna Jennifer Elisabeth Fall, John Tyler Trochta, Jon Ruiz Gondra, José Miguel Casas Sanchez, Kjell Harald Nedreaas, Kordian Trella, Kristin Windsland, Magnus Aune, Matthias Bernreuther, Mikko Vihtakari, Olav Nikolai Breivik, Ricardo Alpoim, Ross Tallman, Samuel Subbey, Silje Elisabeth Seim, Sofie Gundersen, Sondre Nedreås Hølleland, Stine Karlson, Tone Vollen
IMR/PINRO Joint Report Series
2024

Advice on fishing opportunities for beaked redfish in 2025 and 2026 in ICES subareas 1 and 2

Daniel Howell, Anders Nielsen, Brian Stock, Kotaro Ono, Laura Clain, Maria Fossheim, Thomas de Lange Wenneck, Alf Harbitz, Alfonso Perez-Rodriguez, Ane Iriondo, Arved Staby, Bjarte Bogstad, Berengere Husson, C. Tara Marshall, Caroline Aas Tranang, Edda Johannesen, Eduardas Vozgirdas, Elena Eriksen, Elise Eidset, Elvar H. Hallfredsson, Erik Berg, Georg Skaret, Hannes Höffle, Jan Arge Jacobsen, Jan Erik Stiansen, Jane Aanestad Godiksen, Johanna Jennifer Elisabeth Fall, John Tyler Trochta, Jon Ruiz Gondra, José Miguel Casas Sanchez, Kjell Harald Nedreaas, Kordian Trella, Kristin Windsland, Magnus Aune, Matthias Bernreuther, Mikko Vihtakari, Olav Nikolai Breivik, Ricardo Alpoim, Ross Tallman, Samuel Subbey, Silje Elisabeth Seim, Sofie Gundersen, Sondre Nedreås Hølleland, Stine Karlson, Tone Vollen
IMR/PINRO Joint Report Series
2024

Management strategy evaluation for northern shrimp in the Barents Sea (ICES subareas 1 and 2)

John Tyler Trochta, Aleksei Stesko, Ragni Olssøn, Hanna Ellerine Helle Danielsen, Maria Jenssen, Fabian Zimmermann
IMR/PINRO Joint Report Series
2024

Working Group on the Integrated Assessments of the Norwegian Sea (WGINOR; outputs from 2023 meeting)

Tycho Anker-Nilssen, Per Arneberg, Cecilie Broms, Lucie Buttay, Costanza Capelli, Gabrielle Dublet-Adli, Sólvá Káradóttir Eliasen, Anna Kirstine Frie, Hannah Haines, Hjálmar Hátún Eydna í Homrum, Jan Arge Jacobsen, Steingrímur Jónsson, Svein-Håkon Lorentsen, Erik Askov Mousing, Anna H. Olafsdottir, Hildur Pétursdóttir, Benjamin Planque, Warsha Singh, Øystein Skagseth, Morten D. Skogen, Aril Slotte, Hiroko Kato Solvang, Peter Steingrund, Espen Strand, John Tyler Trochta, Gro I. van der Meeren, Antje Voelker, Paulus Jacobus Wensveen
ICES Scientific Reports 6
2023

Working group on the integrated assessments of the Norwegian Sea (WGINOR, outputs from 2022 meeting)

Anna H. Olafsdottir, Benjamin Planque, Tycho Anker-Nilssen, Per Arneberg, Lucas Johannes Bas, Are Berset, Sigurvin Bjarnason, Knut Yngve Børsheim, Cecilie Broms, Lucie Buttay, Sólvá Káradóttir Eliasen, Anne Kirstine Højholt Frie, Elvar H. Hallfredsson, Harald Hansen, Mia Høgi, Jens Christian Holst, Eydna í Homrum, Jan Arge Jacobsen, Steingrímur Jónsson, Inga Kristiansen, Mimi E. Lam, Lísa Anne Libungan, Ulf Ove Lindstrøm, Xiaozi Liu, Svein-Håkon Lorentsen, Kjell Arne Mork, Erik Askov Mousing, Arnt Inge Nygaard, Kotaro Ono, Maria Pettersvik Arvnes, Hildur Pétursdóttir, Morten D. Skogen, Aril Slotte, Hiroko Kato Solvang, Petur Steingrund, Espen Strand, Szymon Surma, John Tyler Trochta, Gro Ingleid van der Meeren, Paulus Jacobus Wensveen
ICES Scientific Reports 5
2023

Advice on fishing opportunities for Barents Sea capelin in 2024 — ICES subareas 1 and 2 excluding Division 2.a west of 5°W

Daniel Howell, Anders Nielsen, Brian Stock, Kotaro Ono, Laura Clain, Maria Fossheim, Thomas de Lange Wenneck, Alf Harbitz, Alfonso Pérez Rodriguez, Ane Iriondo, Arved Staby, Bjarte Bogstad, Berengere Husson, C. Tara Marshall, Caroline Aas Tranang, Edda Johannesen, Eduardas Vozgirdas, Elena Eriksen, Elise Eidset, Elvar H. Hallfredsson, Erik Berg, Georg Skaret, Hannes Höffle, Jan Arge Jacobsen, Jan Erik Stiansen, Jane Aanestad Godiksen, Jerzy Janusz, Johanna Jennifer Elisabeth Fall, John Tyler Trochta, Jon Ruiz Gondra, José Miguel Casas Sanchez, Kjell Harald Nedreaas, Kordian Trella, Kristin Windsland, Matthias Bernreuther, Mikko Vihtakari, Olav Nikolai Breivik, Ricardo Alpoim, Ross Tallman, Samuel Subbey, Silje Elisabeth Seim, Sofie Gundersen, Sondre Nedreås Hølleland, Stine Karlson, Tone Vollen
IMR/PINRO Joint Report Series
Net reports
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