Finotto, L. & Walker, T.I. & Reina, R.D. (2024)
The effect of fishing-capture stress on the oxygen uptake rate and swimming activity of the holocephalan Callorhinchus milii. Journal of Experimental Zoology Part a-Ecological and Integrative Physiology, 341(2), 203–214
DOI: 10.1002/jez.2775
Finucci, B. & Pacoureau, N. & Rigby, C.L. & Matsushiba, J.H. & Faure-Beaulieu, N. & Sherman, C.S. & Vanderwright, W.J. & Jabado, R.W. & Charvet, P. & Mejia-Falla, P.A. & Navia, A.F. & Derrick, D.H. & Kyne, P.M. & Pollom, R.A. & Walls, R.H.L. & Herman, K.B. & Kinattumkara, B. & Cotton, C.F. & Cuevas, J.M. & Daley, R.K. & Dharmadi, Ebert, D.A. & Fernando, D. & Fernando, S.M.C. & Francis, M.P. & Huveneers, C. & Ishihara, H. & Kulka, D.W. & Leslie, R.W. & Neat, F. & Orlov, A.M. & Rincon, G. & Sant, G.J. & Volvenko, I.V. & Walker, T.I. & Simpfendorfer, C.A. & Dulvy, N.K. (2024)
Fishing for oil and meat drives irreversible defaunation of deepwater sharks and rays. Science, 383(6687), 1135–1141
DOI: 10.1126/science.ade9121
Finotto, L. & Walker, T.I. & Reina, R.D. (2023)
Influence of female reproductive state and of fishing-capture stress on the oxygen uptake rate of a viviparous elasmobranch. Journal of Experimental Zoology Part A, Ecological Genetics and Physiology, 339(4), 357–368
DOI: 10.1002/jez.2682
Braccini, M. & Hesp, A. & Walker, T.I. (2022)
Gillnet selectivity for non-targeted shark species in temperate Australia. Fisheries Management and Ecology, 29(5), 724–733
DOI: 10.1111/fme.12570
Finotto, L. & Walker, T.I. & Reina, R.D. (2021)
Prolonged Alteration of Neonate Traits Following Maternal Exposure to Fishing-Capture Stress During Late Pregnancy in a Chondrichthyan Species. Frontiers in Marine Science, 8, Article 631798
DOI: 10.3389/fmars.2021.631798
Walker, T.I. & Day, R.W. & Awruch, C.A. & Bell, J.D. & Braccini, J.M. & Dapp, D.R. & Finotto, L. & Frick, L.H. & Garces-Garcia, K.C. & Guida, L. & Huveneers, C. & Martins, C.L. & Rochowski, B.E.A. & Tovar-Avila, J. & Trinnie, F.I. & Reina, R.D. (2021)
Ecological vulnerability of the chondrichthyan fauna of southern Australia to the stressors of climate change, fishing and other anthropogenic hazards. Fish and Fisheries, 22(5), 1105–1135
DOI: 10.1111/faf.12571
Bartes, S. & Simpfendorfer, C. & Walker, T.I. & King, C. & Loneragan, N. & Braccini, M. (2021)
Conventional tagging of sharks in Western Australia: the main commercial species exhibit contrasting movement patterns. Marine and Freshwater Research, 72(11), 1643–1656
DOI: 10.1071/mf20367
Molina, J.M. & Finotto, L. & Walker, T.I. & Reina, R.D. (2020)
The effect of gillnet capture on the metabolic rate of two shark species with contrasting lifestyles. Journal of Experimental Marine Biology and Ecology, 526, Article 151354
DOI: 10.1016/j.jembe.2020.151354
Garces-Garcia, K.C. & Tovar-Avila, J. & Vargas-Trejo, B. & Chavez-Arrenquin, D.A. & Walker, T.I. & Day, R.W. (2020)
Elasmobranch bycatch by prawn trawls in the Gulf of California: First comprehensive analysis and the effect of fish escape devices. Fisheries Research, 230, Article 105639
DOI: 10.1016/j.fishres.2020.105639
Martins, C.L. & Walker, T.I. & Reina, R.D. (2018)
Stress-related physiological changes and post-release survival of elephant fish (Callorhinchus milii) after longlining, gillnetting, angling and handling in a controlled setting. Fisheries Research, 204, 116–124
DOI: 10.1016/j.fishres.2018.01.016
Dapp, D.R. & Huveneers, C. & Walker, T.I. & Mandelman, J. & Kerstetter, D.W. & Reina, R.D. (2017)
Using logbook data to determine the immediate mortality of blue sharks (Prionace glauca) and tiger sharks (Galeocerdo cuvier) caught in the commercial U.S. pelagic longline fishery. Fishery Bulletin, 115(1), 27–41
DOI: 10.7755/FB.115.1.3
Guida, L. & Awruch, C. & Walker, T.I. & Reina, R.D. (2017)
Prenatal stress from trawl capture affects mothers and neonates: a case study using the southern fiddler ray (Trygonorrhina dumerilii). Scientific Reports, 7, Article 46300
DOI: 10.1038/srep46300
Dapp, D.R. & Huveneers, C. & Walker, T.I. & Reina, R.D. (2017)
Physiological response and immediate mortality of gill-net-caught blacktip reef sharks (Carcharhinus melanopterus). Marine and Freshwater Research, 68(9), 1734–1740
DOI: 10.1071/MF16132
Guida, L. & Dapp, D.R. & Huveneers, C.P.M. & Walker, T.I. & Reina, R.D. (2017)
Evaluating time-depth recorders as a tool to measure the behaviour of sharks captured on longlines. Journal of Experimental Marine Biology and Ecology, 497, 120–126
DOI: 10.1016/j.jembe.2017.09.011
Dapp, D.R. & Walker, T.I. & Huveneers, C. & Reina, R.D. (2016)
Respiratory mode and gear type are important determinants of elasmobranch immediate and post-release mortality. Fish and Fisheries, 17(2), 507–524
DOI: 10.1111/faf.12124
Guida, L. & Walker, T.I. & Reina, R.D. (2016)
The adenylate energy charge as a new and useful indicator of capture stress in chondrichthyans. Journal of Comparative Physiology B: Biochemical, Systemic, and Environmental Physiology, 186(2), 193–204
DOI: 10.1007/s00360-015-0948-y
Dapp, D.R. & Huveneers, C. & Walker, T.I. & Drew, M. & Reina, R.D. (2016)
Moving from Measuring to Predicting Bycatch Mortality: Predicting the Capture Condition of a Longline-Caught Pelagic Shark. Frontiers in Marine Science, 2, Article 126
DOI: 10.3389/fmars.2015.00126
Guida, L. & Walker, T.I. & Reina, R.D. (2016)
Temperature Insensitivity and Behavioural Reduction of the Physiological Stress Response to Longline Capture by the Gummy Shark, Mustelus antarcticus. PLoS ONE,11(2), Article e0148829
DOI: 10.1371/journal.pone.0148829
Trinnie, F.I. & Walker, T.I. & Jones, P.L. & Laurenson, L.J. (2016)
Reproductive cycle of Urolophus cruciatus in south-eastern Australia: Does the species exhibit obligate or facultative diapause? Marine Biology, 163(11), Article 226
DOI: 10.1007/s00227-016-2976-x
Trinnie, F.I. & Walker, T.I. & Jones, P.L. & Laurenson, L.J. (2015)
Asynchrony and regional differences in the reproductive cycle of the greenback stingaree Urolophus viridis from south-eastern Australia. Environmental Biology of Fishes, 98(1), 425–441
DOI: 10.1007/s10641-014-0273-4
Rochowski, B.E.A. & Graham, K.J. & Day, R.W. & Walker, T.I. (2015)
Reproductive biology of the greeneye spurdog Squalus chloroculus (Squaliformes, Squalidae). Journal of Fish Biology, 86(2), 734–754
DOI: 10.1111/jfb.12593
Rochowski, B.E.A. & Walker, T.I. & Day, R.W. (2015)
Geographical variability in life-history traits of a midslope dogfish: the brier shark Deania calcea. Journal of Fish Biology, 87(3), 728–747
DOI: 10.1111/jfb.12756
Guida, L. & Walker, T.I. & Reina, R.D. (2014)
First record of a bicephalic chondrichthyan found in Australian waters; the southern fiddler ray, Trygonorrhina dumerilii (Chondrichthyes: Rhinobatidae). Marine and Freshwater Research, 65(5), 396–399
DOI: 10.1071/MF13198
Dapp, D.R. & Walker, T.I. & Huveneers, C. & Reina, R.D. (2014)
A meta-analysis of elasmobranch respiratory mode, gear type, and mortality [Abstract]. In Programm and Abstracts of Shark International, Durban 2014: 44
Dapp, D.R. & Huveneers, C. & Drew, M. & Walker, T.I. & Reina, R.D. (2014)
Predicting the capture condition of longline-caught sharks [Abstract]. In Programm and Abstracts of Shark International, Durban 2014: 151
Guida, L. & Walker, T.I. & Reina, R.D. (2014)
Fisheries capture stress and its reproductive consequences; changes to maternal body condition and neonate size in the southern fiddler ray Trygonorrhina dumerilii as a result of trawling and air exposure. Poster Abstract. In Programm and Poster Abstracts of Shark International, Durban 2014: 25
Trinnie, F.I. & Walker, T.I. & Jones, P.L. & Laurenson, L.J. (2014)
Regional differences in the reproductive parameters of the sparsely-spotted stingaree, Urolophus paucimaculatus, from south-eastern Australia. Marine and Freshwater Research, 65(11), 943–958
DOI: 10.1071/MF13275
Boomer, J.J. & Harcourt, R.G. & Francis, M.P. & Walker, T.I. & Braccini, M. & Stow, A.J. (2013)
Frequency of Multiple Paternity in Gummy Shark, Mustelus antarcticus, and Rig, Mustelus lenticulatus, and the Implications of Mate Encounter Rate, Postcopulatory Influences, and Reproductive Mode. Journal of Heredity, 104(3), 371–379
DOI: 10.1093/jhered/est010
Frick, L.H. & Walker, T.I. & Reina, R.D. (2012)
Immediate and delayed effects of gill-net capture on acid-base balance and intramuscular lactate concentration of gummy sharks, Mustelus antarcticus. Comparative Biochemistry and Physiology – Part A, Molecular & Integrative Physiology, 162(2), 88–93
DOI: 10.1016/j.cbpa.2011.02.023
Trinnie, F.I. & Walker, T.I. & Jones, P.L. & Laurenson, L.J. (2012)
Biennial reproductive cycle in an extensive matrotrophic viviparous batoid: the sandyback stingaree Urolophus bucculentus from south-eastern Australia. Journal of Fish Biology, 80(5), 1267–1291
DOI: 10.1111/j.1095-8649.2012.03259.x
Rochowski, B.E.A. & Walker, T.I. & Day, R. (2011)
Life history traits of the brier shark and greeneye spurdog inhabiting the continental slope of South-Eastern Australia [Abstract]. In Program and Abstracts for the 2011 Workshop and Conference of the Oceania Chondrichthyan Society, 13th–15th September 2011, Sea World Resort and Water Park, Gold Coast, Queensland, Australia.
Hobday, A.J. & Smith, A.D.M. & Stobutzki, I.C. & Bulman, C. & Daley, R.K. & Dambacher, J.M. & Deng, R.A. & Dowdney, J. & Fuller, M. & Furlani, D. & Griffiths, S.P. & Johnson, D. & Kenyon, R. & Knuckey, I.A. & Ling, S.D. & Pitcher, R. & Sainsbury, K.J. & Sporcic, M. & Smith, T. & Turnbull, C. & Walker, T.I. & Wayte, S.E. & Webb, H. & Williams, A. & Wise, B.S. & Zhou, S. (2011)
Ecological risk assessment for the effects of fishing. Fisheries Research, 108(2–3), 372–384
DOI: 10.1016/j.fishres.2011.01.013
Frick, L.H. & Walker, T.I. & Reina, R.D. (2010)
Trawl capture of Port Jackson sharks, Heterodontus portusjacksoni, and gummy sharks, Mustelus antarcticus, in a controlled setting: Effects of tow duration, air exposure and crowding. Fisheries Research, 106(3), 344–350
DOI: 10.1016/j.fishres.2010.08.016
Frick, L.H. & Reina, R.D. & Walker, T.I. (2010)
Stress related physiological changes and post-release survival of Port Jackson sharks (Heterodontus portusjacksoni) and gummy sharks (Mustelus antarcticus) following gill-net and longline capture in captivity. Journal of Experimental Marine Biology and Ecology, 385(1), 29–37
DOI: 10.1016/j.jembe.2010.01.013
Liu, Y. & Ibrahim, A.S. & Tay, B.-H. & Richardson, S.J. & Bell, J. & Walker, T.I. & Brenner, S. & Venkatesh, B. & Danks, J.A. (2010)
Parathyroid hormone gene family in a cartilaginous fish, the elephant shark (Callorhinchus milii). Journal of Bone and Mineral Research, 25(12), 2337–2347
DOI: 10.1002/jbmr.178
Tovar-Ávila, J. & Day, R.W. & Walker, T.I. (2010)
Using rapid assessment and demographic methods to evaluate the effects of fishing on Heterodontus portusjacksoni off far-eastern Victoria, Australia. Journal of Fish Biology, 77(7), 1564–1578
DOI: 10.1111/j.1095-8649.2010.02788.x
Inoue, J.G. & Miya, M. & Lam, K. & Tay, B.-H. & Danks, J.A. & Bell, J. & Walker, T.I. & Venkatesh, B. (2010)
Evolutionary origin and phylogeny of the modern holocephalans (Chondrichthyes: Chimaeriformes): a mitogenomic perspective. Molecular Biology and Evolution, 27(11), 2576–2586
DOI: 10.1093/molbev/msq147
Braccini, M. & Troynikov, V.S. & Walker, T.I. & Mollet, H.F. & Ebert, D.A. & Barnett, A. & Kirby, N. (2010)
Incorporating heterogeneity into growth analyses of wild and captive broadnose sevengill sharks Notorynchus cepedianus. Aquatic Biology, 9, 131–138
DOI: 10.3354/ab00246
Storrie, M.T. & Walker, T.I. & Laurenson, L.J. & Hamlett, W.C. (2009)
Gestational Morphogenesis of the Uterine Epithelium of the Gummy Shark (Mustelus antarcticus). Journal of Morphology, 270(3), 319–336
DOI: 10.1002/jmor.10693
Tovar-Ávila, J. & Izzo, C. & Walker, T.I. & Braccini, M. & Day, R.W. (2009)
Assessing growth band counts from vertebrae and dorsal-fin spines for ageing sharks: comparison of four methods applied to Heterodontus portusjacksoni. Marine and Freshwater Research, 60(9), 898–903
DOI: 10.1071/MF08206
Tovar-Ávila, J. & Troynikov, V.S. & Walker, T.I. & Day, R.W. (2009)
Use of stochastic models to estimate the growth of the Port Jackson shark, Heterodontus portusjacksoni, off eastern Victoria, Australia. Fisheries Research, 95(2–3), 230–235
DOI: 10.1016/j.fishres.2008.09.031
Trinnie, F.I. & Walker, T.I. & Jones, P.L. (2009)
Reproductive biology of the eastern shovelnose stingaree Trygonoptera imitata from south-eastern Australia. Marine and Freshwater Research, 60(8), 845–860
DOI: 10.1071/MF08165
Storrie, M.T. & Walker, T.I. & Laurenson, L.J. & Hamlett, W.C. (2008)
Microscopic Organization of the Sperm Storage Tubules in the Oviducal Gland of the Female Gummy Shark (Mustelus antarcticus), With Observations on Sperm Distribution and Storae. Journal of Morphology, 269(11), 1308–1324
DOI: 10.1002/jmor.10646
Tovar-Ávila, J. & Izzo, C. & Walker, T.I. & Braccini, M. & Day, R.W. (2008)
Dorsal-fin spine growth of Heterodontus portusjacksoni: a general model that applies to dorsal-fin spines of chondrichthyans? Canadian Journal of Fisheries and Aquatic Sciences, 65(1), 74–82
DOI: 10.1139/f07-146
Walker, T.I. & Taylor, B.L. & Brown, L.P. & Punt, A.E. (2008)
Embracing Movement and Stock Structure for Assessment of Galeorhinus galeus Harvested off Southern Australia. In M.D. Camhi, E.K. Pikitch, E.A. Babcock (Eds.) Sharks of the Open Ocean: Biology, Fisheries and Conservation. (pp. 369–392). Blackwell Publishing, Oxford, U.K.
Huveneers, C. & Walker, T.I. & Otway, N.M. & Harcourt, R.G. (2007)
Reproductive synchrony of three sympatric species of wobbegong shark (genus Orectolobus) in New SouthWales, Australia: reproductive parameter estimates necessary for population modelling. Marine and Freshwater Research, 58(8), 765–777
DOI: 10.1071/MF06187
Walker, T.I. (2007)
The state of research on chondrichthyan fishes. Marine and Freshwater Research, 58(1), 1–3
DOI: 10.1071/MF06223
Braccini, M. & Gillanders, B.M. & Walker, T.I. & Tovar-Ávila, J. (2007)
Comparison of deterministic growth models fitted to length-at-age data of the piked spurdog (Squalus megalops) in south-eastern Australia. Marine and Freshwater Research, 58(1), 24–33
DOI: 10.1071/MF06064
Walker, T.I. (2007)
Spatial and temporal variation in the reproductive biology of gummy shark Mustelus antarcticus (Chondrichthyes : Triakidae) harvested off southern Australia. Marine and Freshwater Research, 58(1), 67–97
DOI: 10.1071/MF06074
Tovar-Ávila, J. & Walker, T.I. & Day, R.W. (2007)
Reproduction of Heterodontus portusjacksoni in Victoria, Australia: evidence of two populations and reproductive parameters for the eastern population Marine and Freshwater Research, 58(10), 956–965
DOI: 10.1071/MF06230
Braccini, M. & Hamlett, W.C. & Gillanders, B.M. & Walker, T.I. (2007)
Embryo development and maternal-embryo nutritional relationships of piked spurdog (Squalus megalops). Marine Biology, 150(4), 727–737
DOI: 10.1007/s00227-006-0393-2
Walker, T.I. & Cavanagh, R.D. & Stevens, J.D. & Carlisle, A.B. & Chiaramonte, G.E. & Domingo, A. & Ebert, D.A. & Mancusi, C. & Massa, A. & McCord, M.E. & Morey, G. & Paul, L.J. & Serena, F. & Vooren, C.M. (2006)
Galeorhinus galeus IUCN 2012, IUCN Red List of Threatened Species, Version 2012.2, https://www.iucnredlist.org
Trinnie, F.I. & White, W.T. & Walker, T.I. (2006)
Urolophus paucimaculatus IUCN 2012, IUCN Red List of Threatened Species, Version 2012.2, https://www.iucnredlist.org
Braccini, M. & Gillanders, B.M. & Walker, T.I. (2006)
Determining reproductive parameters for population assessments of chondrichthyan species with asynchronous ovulation and parturition: piked spurdog (Squalus megalops) as a case study. Marine and Freshwater Research, 57(1), 105–119
DOI: 10.1071/MF05076
Braccini, M. & Gillanders, B.M. & Walker, T.I. (2006)
Total and partial length-length, mass-mass and mass-length relationships for the piked spurdog (Squalus megalops) in south-eastern Australia. Fisheries Research, 78(2–3), 385–389
DOI: 10.1016/j.fishres.2005.11.013
Braccini, M. & Gillanders, B.M. & Walker, T.I. (2006)
Hierarchical approach to the assessment of fishing effects on non-target chondrichthyans: case study of Squalus megalops in southeastern Australia. Canadian Journal of Fisheries and Aquatic Sciences, 63(11), 2456–2466
DOI: 10.1139/f06-141
Stevens, J.D. & Walker, T.I. & Cook, S.F. & Fordham, S.V. (2005)
Chapter 5. Threats Faced by Chondrichthyan Fish. In Fowler, S.L., Cavanagh, R.D., Camhi, M., Burgess, G.H., Cailliet, G.M., Fordham, S.V., Simpfendorfer, C.A. and Musick, J.A.(comp. and Ed.). Sharks, Rays and Chimaeras: The Status of the Chondrichthyan Fishes. Status Survey. IUCN SSC Shark Specialist Group. IUCN, Gland, Switzerland and Cambridge, UK: 48–57
Braccini, M. & Gillanders, B.M. & Walker, T.I. (2005)
Sources of variation in the feeding ecology of the piked spurdog (Squalus megalops): implications for inferring predatoreprey interactions from overall dietary composition ICES Journal of Marine Science, 62(6), 1076–1094
DOI: 10.1016/j.icesjms.2005.04.004
Walker, T.I. (2005)
Reproduction in fisheries science. In W.C. Hamlett (Ed.), Reproductive biology and phylogeny of chondrichthyes: sharks, rays and chimaeras, Vol. 3 (pp. 81–127). Science Publishers, Endfield, USA
Hamlett, W.C. & Kormanik, G. & Storrie, M. & Stevens, B. & Walker, T.I. (2005)
Chondrichthyan parity, lecithotrophy and matrotrophy. In W.C. Hamlett (Ed.), Reproductive biology and phylogeny of chondrichthyes: sharks, rays and chimaeras, Vol. 3 (pp. 395–434). Science Publishers, Endfield, USA
Jones, C.J.P. & Walker, T.I. & Bell, J.D. & Reardon, M.B. & Ambrosio, C.E. & Almeida, A. & Hamlett, W.C. (2005)
Male Genital Ducts and Copulatory Appendages in Chondrichthyans. In W.C. Hamlett (Ed.), Reproductive biology and phylogeny of chondrichthyes: sharks, rays and chimaeras, Vol. 3 (pp. 361–393). Science Publishers, Endfield, USA
Pribac, F. & Punt, A.E. & Taylor, B.L. & Walker, T.I. (2005)
Using Length, Age and Tagging Data in a Stock Assessment of a Length Selective Fishery for Gummy Shark (Mustelus antarcticus). Journal of Northwest Atlantic Fishery Science, 35, 267–290
DOI: 10.2960/J.v35.m521
Punt, A.E. & Pribac, F. & Taylor, B.L. & Walker, T.I. (2005)
Harvest Strategy Evaluation for School and Gummy Shark. Journal of Northwest Atlantic Fishery Science, 35, 387–406
DOI: 10.2960/J.v35.m517
Walker, T.I. & Hudson, R.J. & Gason, A.S. (2005)
Catch Evaluation of Target, By-product and By-catch Species Taken by Gillnets and Longlines in the Shark Fishery of South-eastern Australia. Journal of Northwest Atlantic Fishery Science, 35, 505–530
DOI: 10.2960/J.v35.m515
Braccini, M. & Gillanders, B.M. & Walker, T.I. (2005)
Reproductive parameters for population assessment of Squalus megalops [Abstract]. American Elasmobranch Society 21th Annual Meeting, Tampa, Florida
Tovar-Ávila, J. & Walker, T.I. & Day, R.W. (2005)
Reproduction of Port Jackson sharks off south-eastern Australia [Abstract]. American Elasmobranch Society 21th Annual Meeting, Tampa, Florida
Trinnie, F.I. & Walker, T.I. & Laurenson, L.J.B. & Jones, P. (2005)
Demographic biology of the sparsely-spotted stingaree Urolophus paucimaculatus from south eastern Australia [Abstract]. American Elasmobranch Society 21th Annual Meeting, Tampa, Florida
Walker, T.I. (2005)
The diversity of sharks, rays and chimaeras. Department of Agriculture, Fisheries and Forestry, Canberra, ACT
Smith, R.M. & Walker, T.I. & Hamlett, W.C. (2004)
Microscopic organisation of the oviducal gland of the holocephalan elephant fish, Callorhynchus milii. Marine and Freshwater Research, 55(2), 155–164
DOI: 10.1071/MF01078
Braccini, M. & Walker, T.I. & Gillanders, B.M. (2004)
Dietary composition of three shark species in southeastern Australia [Abstract]. American Elasmobranch Society 20th Annual Meeting, Norman, Oklahoma
Reardon, M.B. & Walker, T.I. & Francis, M.P. (2003)
Callorhinchus milii IUCN 2012, IUCN Red List of Threatened Species, Version 2012.2, https://www.iucnredlist.org
Walker, T.I. (2003)
Mustelus antarcticus IUCN 2012, IUCN Red List of Threatened Species, Version 2012.2, https://www.iucnredlist.org
Walker, T.I. & Simpfendorfer, C.A. (2003)
Pristiophorus cirratus IUCN 2012, IUCN Red List of Threatened Species, Version 2012.2, https://www.iucnredlist.org
Walker, T.I. (2003)
Pristiophorus nudipinnis IUCN 2012, IUCN Red List of Threatened Species, Version 2012.2, https://www.iucnredlist.org
Braccini, M. & Walker, T.I. & Gillanders, B.M. (2003)
Information for ecological risk assessment of piked spurdog (Squalus megalops) off southeastern Australia [Abstract]. American Elasmobranch Society 19th Annual Meeting, Manaus, Brazil
Walker, T.I. (2003)
Determination of reproductive parameters of chondrichthyan animals for population assessment [Abstract]. American Elasmobranch Society 19th Annual Meeting, Manaus, Brazil
Walker, T.I. & Taylor, B.L. & Hudson, R.J. (2002)
Southern shark catch and effort 1970-2001 report to Australian Fisheries Management Authority. Marine and Freshwater Resources Institute, Queenscliff, Victoria, Australia. 47pp.
Reardon, M.B. & Walker, T.I. & Hamlett, W.C. (2002)
Microanatomy of spermatophore formation and male genital ducts in the holocephalan, Callorhynchus milii. Marine and Freshwater Research, 53(2), 591–600
DOI: 10.1071/MF01130
Punt, A.E. & Walker, T.I. & Prince, J.D. (2002)
Assessing the management-related benefits of fixed-station fishery-independent surveys in Australia's Southern Shark Fishery. Fisheries Research, 55(1–3), 281–295
DOI: 10.1016/S0165-7836(01)00276-4
Hamlett, W.C. & Reardon, M. & Clark, J. & Walker, T.I. (2002)
Ultrastructure of Sperm Storage and Male Genital Ducts in a Male Holocephalan, the Elephant Fish, Callorhynchus milii. Journal of Experimental Zoology, 292(2), 111–128
DOI: 10.1002/jez.1148
Trivett, M.K. & Walker, T.I. & Macmillan, D.L. & Clement, J.G. & Martin, T.J. & Danks, J.A. (2002)
Parathyroid hormone-related protein (PTHrP) production sites in elasmobranchs. Journal of Anatomy, 201, 41–52
DOI: 10.1007/s00427-005-0015-x
Walker, T.I. (2001)
Basslink project review of impacts of high voltage direct current sea cables and electrodes on chondrichthyan fauna and other marine life. Marine and Freshwater Resources Institute Report No. 20, 68pp. Second Draft. Reprinted as Integrated Impact Assessment Statement Supporting Study No. 29 Sharks Marine. (Basslink A National Grid Project, Melbourne)
Trivett, M.K. & Walker, T.I. & Clement, J.G. & Ho, P.M.W. & Martin, T.J. & Danks, J.A. (2001)
Effects of water temperature and salinity on parathyroid hormone-related protein in the circulation and tissues of elasmobranchs. Comparative Biochemistry and Physiology – Part B, Biochemistry and Molecular Biology, 129, 327–336
DOI: 10.1016/S1096-4959(01)00340-2
Punt, A.E. & Pribac, F. & Walker, T.I. & Taylor, B.L. & Prince, J.D. (2000)
Stock assessment of school shark Galeorhinus galeus based on a spatially-explicit population dynamics model. Marine and Freshwater Research, 51(3), 205–220
DOI: 10.1071/MF99124
Walker, T.I. & Taylor, B.L. & Brown, L.P. (2000)
Southern Shark Tag Database Project, FRDC Project No. 96/162, Draft Final Report to Fisheries Research and Development Corporation. Marine and Freshwater Resources Institute, Queenscliff, Victoria. 79pp.
Punt, A.E. & Walker, T.I. & Taylor, B.L. & Pribac, F. (2000)
Standardization of catch and effort data in a spatially-structured shark fishery. Fisheries Research, 45(2), 129–145
DOI: 10.1016/S0165-7836(99)00106-X
Xiao, Y. & Walker, T.I. (2000)
Demographic analysis of gummy shark (Mustelus antarcticus) and school shark (Galeorhinus galeus) off southern Australia by applying a generalized Lotka equation and its dual equation. Canadian Journal of Fisheries and Aquatic Sciences, 57, 214–222
DOI: 10.1139/f99-224
Walker, T.I. (1999)
Southern Australian shark fishery management. FAO Fisheries Technical Paper, 378/2, 480–514
Walker, T.I. (1999)
Galeorhinus galeus fisheries of the world. FAO Fisheries Technical Paper, 378/2, 728–773
Walker, T.I. (1999)
Can shark resources be harvested sustainably? A question revisited with a review of shark fisheries. Marine and Freshwater Research, 49(7), 553–572
DOI: 10.1071/MF98017
Troynikov, V.S. & Walker, T.I. (1999)
Vertebral size-at-age heterogeneity in gummy shark harvested off southern Australia. Journal of Fish Biology, 54(4), 863–877
DOI: 10.1111/j.1095-8649.1999.tb02038.x
Xiao, Y. & Brown, L.P. & Walker, T.I. & Punt, A.E. (1999)
Estimation of instantaneous rates of tag shedding for school shark, Galeorhinus galeus, and gummy shark, Mustelus antarcticus, by conditional likelihood. Fishery Bulletin, 97(1), 170–184
Trivett, M.K. & Officer, R.A. & Clement, J.G. & Walker, T.I. & Joss, J.M. & Ingleton, P.M. & Martin, T.J. & Danks, J.A. (1999)
Parathyroid hormone-related protein (PTHrP) in cartilaginous and bony fish tissues. Journal of Experimental Zoology, 284(5), 541–548
DOI: 10.1002/(SICI)1097-010X(19991001)284:5<541::AID-JEZ10>3.0.CO;2-3
Punt, A.E. & Walker, T.I. (1998)
Stock assessment and risk analysis for the school shark (Galeorhinus galeus) off southern Australia. Marine and Freshwater Research, 49(7), 719–731
DOI: 10.1071/MF96101
Walker, T.I. & Punt, A.E. (1998)
Stock Assessment Report. School Shark 1997. (Compiled for the Southern Shark Fishery Assessment Group). Australian Fisheries Management Authority, Canberra, 45pp.
Walker, T.I. & Taylor, B.L. & Hudson, R.J. & Cottier, J.P. (1998)
The phenomenon of apparent change of growth rate in gummy shark (Mustelus antarcticus) harvested off southern Australia. Fisheries Research, 39(2), 139–163
DOI: 10.1016/S0165-7836(98)00180-5
Stevens, J.D. & Walker, T.I. & Simpfendorfer, C.A. (1997)
Are southern Australian shark fisheries sustainable? In Developing and sustaining world fisheries resources, the state of science and management. 2nd World Fisheries Congress, Brisbane, Australia. Eds. D.A. Hancock, D.C. Smith, A. Grant, J.P. Beumer: 62–66
Trivett, M.K. & Officer, R.A. & Clement, J.G. & Walker, T.I. & Joss, J.M. & Ingleton, P.M. & Martin, T.J. & Danks, J.A. (1997)
Localization of parathyroid hormone-related protein (PTHrP) in bony and cartilaginous fish [Abstract]. American Elasmobranch Society 13th Annual Meeting, 26 June–2 July 1997, Seattle, Washington
Walker, T.I. (1996)
Stock Assessment Report. Gummy shark 1995. (Compiled for the Southern Shark Fishery Assessment Group). Australian Fisheries Management Authority, Canberra, 33pp.
Officer, R.A. & Gason, A.S. & Walker, T.I. & Clement, J.G. (1996)
Sources of variation in counts of growth increments in vertebrae from gummy, Mustelus antarcticus, and school shark, Galeorhinus galeus: implications for age determination. Canadian Journal of Fisheries and Aquatic Sciences, 53(8), 1765–1777
DOI: 10.1139/f96-103
Walker, T.I. (1994)
Stock assessments of the gummy shark, Mustelus antarcticus Günther, in Bass Strait and off South Australia. In Hancock, D.A.(ed.). Population Dynamics for Fisheries Management. 24–25 August 1993. Perth. Australian Government Printing Service, Canberra: 173–187
Walker, T.I. (1994)
Fishery model of gummy shark, Mustelus antarcticus, for Bass Strait. In: Bishop, I.(ed.). Resource Technology '94 New Opportunities Best Practice. 26–30 September 1994. University of Melbourne, Melbourne. The Centre for Geographic Information Systems and Modelling The University of Melbourne, Melbourne, 422–438
Walker, T.I. (1992)
Fishery simulation model for sharks applied to the Gummy Shark, Mustelus antarcticus Gunther, from Southern Australian waters. Australian Journal of Marine and Freshwater Research, 43(1), 195–212
DOI: 10.1071/MF9920195
Moulton, P.L. & Walker, T.I. & Saddlier, S.R. (1992)
Age and growth studies of Gummy Shark, Mustelus antarcticus Gunther, and School Shark, Galeorhinus galeus (Linnaeus), from Souther Australian Waters. Australian Journal of Marine and Freshwater Research, 43(5), 1241–1267
DOI: 10.1071/MF9921241
Walker, T.I. & Moulton, P.L. & Et Al. (1992)
Age and growth of gummy shark, Mustelus antarcticus Gunther, from southern Australian waters. Newsletter Australian Society for Fish Biology, 22(2), 57–58
Kirkwood, G.P. & Walker, T.I. (1986)
Gill net mesh selectivities for gummy shark, Mustelus antarcticus Günther, taken in south-eastern Australian Waters. Australian Journal of Marine and Freshwater Research, 37(6), 689–697
DOI: 10.1071/MF9860689
Walker, T.I. (1983)
Investigations of the gummy shark, Mustelus antarcticus Günther, from southeastern Australian waters. Report to Fishing Industry Research Committee. June 1983. In Caton, A.E.(ed.). Proceedings of the Shark Assessment Workshop, South East Fisheries Committee Shark Research Group. 7–10 March 1983. Melbourne. Department of Primary Industry, Canberra. 94pp.
Walker, T.I. (1977)
Statistical comparison of the results from six analytical chemistry laboratories of the mercury content of muscle tissue of two species of sharks. International Journal of Environmental Analytical Chemistry, 5(1), 25–33
DOI: 10.1080/03067317708071127
Walker, T.I. (1976)
Effects of species, sex, length and locality on the mercury content of school shark Galeorhinus australis (Macleay) and gummy shark Mustelus antarcticus Guenther from south-eastern Australian waters. Australian Journal of Marine and Freshwater Research, 27(4), 603–616
DOI: 10.1071/MF9760603