Publications

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Peer-reviewed publications

Francis, M., Lyon, W., … Sippel, T. (2023). Post-release survival of shortfin mako sharks released from pelagic tuna longlines in the Pacific Ocean. Aquatic Conservation: Marine and Freshwater Ecosystems 33: 366–378.

Kinney, M., Kacev, D., … Sippel, T. (2020). Common thresher shark Alopias vulpinus movement: Bayesian inference on a data limited species. Marine Ecology Progress Series 639: 155-167.

Nasby-Lucas, N., Dewar, H., … Sippel, T. (2019). Movements of electronically tagged shortfin mako sharks (Isurus oxyrinchus) in the eastern North Pacific Ocean. Animal Biotelemetry 7: 12.

Kacev, D., Sippel, T., … (2017). An Introduction to Modelling Abundance and Life History Parameters in Shark Populations. Advances in Marine Biology 78: 45–87.

Sippel, T., Lee, H., … (2017). Searching for M: Is there more information about natural mortality in stock assessments than we realize? Fisheries Research 192: 135–140.

Maxwell, S., Hazen, E., … Sippel, T. (2015). Dynamic ocean management: Defining and conceptualizing real-time management of the ocean. Marine Policy 58: 42–50.

Sippel, T., Paige Eveson, J., … (2015). Using movement data from electronic tags in fisheries stock assessment: A review of models, technology and experimental design. Fisheries Research 163: 152–160.

Evans, K., Abascal, F., … Sippel, T. (2014). The horizontal and vertical dynamics of swordfish in the South Pacific Ocean. Journal of Experimental Marine Biology and Ecology 450: 55–67.

Weng, K., O’Sullivan, J., … Sippel, T. (2012). Back to the wild: Release of juvenile great white sharks from the Monterey Bay Aquarium. Global Perspectives on the Biology and Life History of the Great White Shark (Carcharodon carcharias): 419–446.

Sippel, T., Holdsworth, J., … (2011). Investigating Behaviour and Population Dynamics of Striped Marlin (Kajikia audax) from the Southwest Pacific Ocean with Satellite Tags. PLoS ONE 6: e21087.

Sippel, T., Holdsworth, J., … (2010). Behaviour and distribution of striped marlin (Kajikia audax) in the southwest Pacific Ocean. PLOS One.

Holdsworth, J., Sippel, T. & Block, B. (2009). Near real time satellite tracking of striped marlin (Kajikia audax) movements in the Pacific Ocean. Marine Biology 156: 505–514.

LePort, A., Sippel, T. & Montgomery, J. (2008). Observations of mesoscale movements in the short-tailed stingray (Dasyatis brevicaudata) from New Zealand using a novel PSAT attachment method. Journal of Experimental Marine Biology and Ecology 359: 110–117.

Sippel, T., Davie, P., … (2007). Striped marlin (Tetrapturus audax) movements and habitat utilization during a summer and autumn in the Southwest Pacific Ocean. Fisheries Oceanography 16: 459–472.

Reports

National Academies of Sciences, Engineering, and Medicine (2026). Offshore Renewable Energy Development on the West Coast: Understanding Effects on Shipping, Fisheries, and Maritime Activities. National Academies Press.

National Academies of Sciences, Engineering, and Medicine (2026). Review of the Draft U.S. National Assessment by The Nature Record. The National Academies Press.

Informal Offshore Wind Energy Group (2024). Oregon Floating Offshore Wind Energy Roadmap with Exit Ramps. Oregon Consensus.

Cox, B. & Sippel, T. (2020). Pound Nets and PD17 2017 Survival Analysis. Washington Department of Fish and Wildlife: 12.

Stohs, S. & Sippel, T. (2017). Analysis of Increasing the Required VMS Ping Rate for the California Drift Gillnet Fishery. NOAA-NMFS: 18.

Kai, M., Carvalho, F., … Sippel, T. (2017). Stock assessment for the north Pacific Blue shark (Prionace glauca) using Bayesian State-space Surplus Production Model. NOAA: 43.

Carvalho, F., Kai, M., … Sippel, T. (2017). Stock Assessment of Blue Shark in the North Pacific Ocean Using Stock Synthesis. NOAA: 52.

Kohin, S., Sippel, T. & Carvalho, F. (2016). Catch and Size of Blue Sharks Caught in U.S. Fisheries in the North Pacific. NOAA - Southwest Fisheries Science Center: 11.

Carvalho, F. & Sippel, T. (2016). Direct Estimates of Gear Selectivity for the North Pacific Blue Shark Using Catch-at-Length Data: Implications for stock assessment. NOAA - Pacific Islands Fisheries Science Center: 10.

Sippel, T., Semba, Y., … (2016). Size and sex structure of blue sharks in the North Pacific Ocean. NOAA - Southwest Fisheries Science Center: 11.

Holdsworth, J., Saul, P., … Sippel, T. (2016). Synthesis of New Zealand Gamefish Tagging Data, 1975 to 2014. New Zealand Ministry for Primary Industries.

Sippel, T., Ohshimo, S., … (2015). Spatial and temporal patterns of shortfin mako shark size and sex in the North Pacific Ocean. NOAA: 12.

Sippel, T., Carvalho, F., … (2014). Catches of shortfin mako sharks from US commerical and recreational fisheries in the North Pacific Ocean. NOAA: 36.

Sippel, T., Nasby-Lucas, N. & Kohin, S. (2014). Description of the Hawaii Longline Observer Program. NOAA: 23.

Sippel, T., Ohshimo, S., … (2014). Spatial and temporal patterns in size and sex of shortfin mako sharks from US and Japanese commercial fisheries: a synthesis to guide future research. NOAA: 36.

Takahashi, N., Kanaiwa, M., … Sippel, T. (2014). Stock Assessment and Future Projections of Blue Shark in the North Pacific Ocean by Bayesian Surplus Production Model using Revised Data. International Scientific Committee for Tuna and Tuna-like Species in the North Pacific Ocean: 57.

Sippel, T., Wraith, J. & Kohin, S. (2013). A summary of blue marlin conventional tag recapture data from NMFS-SWFSC Cooperative Billfish Tagging Program in the Pacific Ocean. ISC/13/BILLWG-1/08.

Sippel, T. & Kohin, S. (2013). Catches of blue sharks from U.S. West Coast recreational fisheries during 1971-2011. NOAA: 4.

Urbisci, L., Runcie, R., … Sippel, T. (2013). Examining size-sex segregation among blue sharks (Prionace glauca) from the Eastern Pacific Ocean using drift gillnet fishery and satellite tagging data.

Urbisci, L., Sippel, T., … (2013). Size composition and spatial distribution of shortfin mako shark by size and sex in US West Coast fisheries.

Sippel, T. & Kohin, S. (2012). Catches of blue and shortfin mako sharks from U.S. West Coast recreational fisheries 1980-2010. International Scientific Committee for Tuna and Tuna-like Species in the North Pacific ISC/12/SharkWG-1/04: 1–9.

Teo, S., Sippel, T., … (2012). Preliminary time series for north Pacific blue and shortfin mako sharks from the U.S. West Coast drift gillnet fishery. NOAA: 32.

Teo, S., Sippel, T., … (2012). Preliminary time series for the north Pacific blue and shortfin mako sharks from the US West Coast drift gillnet fishery. ISC/12/SHARKWG-1/03.

Evans, K., Kolody, D., … Sippel, T. (2012). Spatial dynamics of swordfish in the south Pacific Ocean inferred from tagging experiments. | WCPFC Meetings. Western and Central Pacific Fisheries Commission: 36.

Sippel, T., Wraith, J., … (2011). A summary of blue shark (Prionace glauca) and shortfin mako shark (Isurus oxyrinchus) tagging data available from the North and Southwest Pacific Ocean. NOAA: 7.

Holdsworth, J., Sippel, T. & Saul, P. (2010). Movement of broadbill swordfish from New Zealand tagged with pop-up satellite archival tags. New Zealand Fisheries Assessment Report 2010/4: 28.

Sippel, T., Holdsworth, J. & Saul, P. (2009). Striped marlin satellite tagging in New Zealand: Summarizing the Foundation’s research program. New Zealand Marine Research Foundation: 17.

Holdsworth, J. & Sippel, T. (2008). A summary of New Zealand southern bluefin tuna electronic tagging results. New Zealand Ministry of Fisheries: 25–25.

Sippel, T. & Holdsworth, J. (2007). A review of striped marlin movement and habitat selection determined from satellite tag data collected from 2003-2007 in the southwest Pacific Ocean. New Zealand Marine Research Foundation: 20.

Holdsworth, J., Sippel, T. & Saul, P. (2007). An investigation into swordfish (Xiphias gladius) stock structure using satellite tag and release methods. Western and Central Pacific Fisheries Commission: 21.

Sippel, T. (2006). Use of satellite transmitting archival tags on pelagic fish in New Zealand. New Zealand Ministry of Fisheries: 36.

Holdsworth, J., Sippel, T. & Boyd, R. (2005). Size and condition of snapper in the 2004/2005 SNA1 recreational fishery. New Zealand Ministry of Fisheries - Fisheries Assessment Report FAR-REC2003/02.

Sippel, T. & Holdsworth, J. (2005). Tales from marlin tails: Understanding New Zealand’s striped marlin with both new and familiar satellite tags. New Zealand Marine Research Foundation: 23–23.

Sippel, T., Davie, P. & Holdsworth, J. (2004). Migrations and environmental preferences of striped marlin (Tetrapturus audax) tagged in New Zealand with satellite transmitting archival tags. New Zealand Marine Research Foundation: 19.