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Assessing the Welfare of Pinnipeds

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Part of the book series: Animal Welfare ((AWNS,volume 17))

Abstract

A recent increase in collaborative and independent studies on sea lions, seals and walruses has advanced our knowledge and interest in pinniped welfare. Nevertheless published discussions of the welfare of pinnipeds, and secondly of potential measures to assess their welfare, are, respectively, very few and non-existent. This chapter aims to make first steps in the discussion on assessing pinniped welfare, with the goal of stimulating future welfare investigations. Pinniped species are able to thrive in two opposing environments, the land/ice margin at the coast and in the sea, and these animals use these two ‘domains’ for different functions. Welfare measurement is concerned with the outcome of an animal’s internal and external responses to its environment, and pinniped species’ evolutionary biology may be especially important in this respect, in terms of our understanding of the animals’ responses and interactions within their two domains. Pinnipeds are being directly impacted by serious anthropogenic disturbances in the wild, including human interference at established feeding and breeding grounds, hunting, entanglement and climate change, and are also often kept in captive collections. Feasible evaluations of welfare can therefore be assumed to have potential widespread utility, including applications benefitting the animals themselves.

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References

  • Abbott DH, Keverne EB, Bercovitch FB, Shively CA, Mendoza SP, Saltzman W, Snowdon CT, Ziegler TE, Banjevic M, Garland T, Sapolsky RM (2003) Are subordinates always stressed? A comparative analysis of rank differences in cortisol levels among primates. Horm Behav 43:67–82

    Article  CAS  PubMed  Google Scholar 

  • Atkinson S, Crocker D, Houser D, Mashburn K (2015) Stress physiology in marine mammals: how well do they fit the terrestrial model? J Comp Physiol B 185(5):463–486

    Article  CAS  PubMed  Google Scholar 

  • AWA (1966) Animal welfare act. Public law 89–544. 89th congress, H. R. 13881, august 24, 1966. USDA, Washington DC

    Google Scholar 

  • Baldi R, Campagna C, Pedraza S, Le Boeuf BJ (1996) Social effects of space availability on the breeding behaviour of elephant seals in Patagonia. Anim Behav 51:717–724

    Article  Google Scholar 

  • Barber JC (2009) Programmatic approaches to assessing and improving animal welfare in zoos and aquariums. Zoo Biol 28:519–530

    PubMed  Google Scholar 

  • Bartholomew GA (1970) A model for the evolution of pinniped polygyny. Evolution 24:546–559

    Article  PubMed  Google Scholar 

  • Bishop AM, Pomeroy P, Twiss SD (2015) Variability in individual rates of aggression in wild gray seals: fine-scale analysis reveals importance of social and spatial stability. Behav Ecol Sociobiol 69:1663–1675

    Article  Google Scholar 

  • Boissy A, Manteuffel G, Jensen MB, Moe RO, Spruijt B, Keeling LJ, Winckler C, Forkman B, Dimitrov I, Langbein J, Bakken M (2007) Assessment of positive emotions in animals to improve their welfare. Physiol Behav 92:375–397

    Article  CAS  PubMed  Google Scholar 

  • Bossart GD (2011) Marine mammals as sentinel species for oceans and human health. Vet Pathol 48:676-690

    Google Scholar 

  • Boyd IL (1991) Environmental and physiological factors controlling the reproductive cycles of pinnipeds. Can J Zool 69:1135–1148

    Article  Google Scholar 

  • Böye M, Güntürkün O, Vauclair J (2005) Right ear advantage for conspecific calls in adults and subadults, but not infants, California Sea lions (Zalophus californianus): hemispheric specialization for communication? Eur J Neurosci 21:1727–1732

    Article  PubMed  Google Scholar 

  • Brando SICA (2010) Advances in husbandry training in marine mammal care programs. Int J Comp Psychol 23:777–791

    Google Scholar 

  • Brilot BO, Normandale CL, Parkin A, Bateson M (2009) Can we use starlings’ aversion to eyespots as the basis for a novel ‘cognitive bias’ task? Appl Anim Behav Sci 118:182–190

    Article  Google Scholar 

  • Broom DM (1983) Stereotypies as animal welfare indicators. In: Smidt D (ed) Indicators relevant to farm animal welfare. Springer, Netherlands, pp 81–87

    Chapter  Google Scholar 

  • Broom DM (1991) Assessing welfare and suffering. Behav Process 25:117–123

    Article  CAS  Google Scholar 

  • Butterworth A, Clegg I, Bass C (2012) Untangled–marine debris: a global picture of the impact on animal welfare and of animal-focused solutions. World Society for the Protection of Animals International, London, UK

    Google Scholar 

  • Butterworth A, Richardson M (2013) A review of animal welfare implications of the Canadian commercial seal hunt. Mar Policy 38:457–469

    Article  Google Scholar 

  • Council Directive (1999) Council Directive 1999/22/EC of 29th March 1999 relating to the keeping of wild animals in zoos. Retrieved from http://eur-lex.europa.eu/legal-content/EN/TXT/?uri=celex:31999L0022 on March 21st 2016

  • Castellini MA, Davis RW, Loughlin TR, Williams TM (1993) Blood chemistries and body condition of Steller Sea lion pups at Marmot Island, Alaska. Mar Mamm Sci 9:202–208

    Article  Google Scholar 

  • Castellote M, Fossa F (2006) Measuring acoustic activity as a method to evaluate welfare in captive beluga whales (Delphinapterus leucas). Aquat Mamm 32:325

    Article  Google Scholar 

  • Chilvers BL, Robertson BC, Wilkinson IS, Duignan PJ, Gemmell NJ (2005) Male harassment of female New Zealand Sea lions, Phocarctos hookeri: mortality, injury, and harassment avoidance. Can J Zool 83:642–648

    Article  Google Scholar 

  • Clark FE (2013) Marine mammal cognition and captive care: a proposal for cognitive enrichment in zoos and aquariums. J Zoo Wildl Med 1:1–6

    Google Scholar 

  • Clegg ILK, Borger-Turner JL, Eskelinen HC (2015) C-well: the development of a welfare assessment index for captive bottlenose dolphins (Tursiops truncatus). Anim Welf 24:267–282

    Article  Google Scholar 

  • Colitz CM, Saville WJ, Renner MS, McBain JF, Reidarson TH, Schmitt TL, Nolan EC, Dugan SJ, Knightly F, Rodriguez MM, Mejia-Fava JC (2010) Risk factors associated with cataracts and lens luxations in captive pinnipeds in the United States and the Bahamas. J Am Vet Med Assoc 237:429–436

    Article  PubMed  Google Scholar 

  • Dawkins MS (2006) A user’s guide to animal welfare science. Trends Ecol Evol 21:77–82

    Article  PubMed  Google Scholar 

  • DeVries AC, Glasper ER, Detillion CE (2003) Social modulation of stress responses. Physiol Behav 79:399–407

    Article  CAS  PubMed  Google Scholar 

  • Désiré L, Boissy A, Veissier I (2002) Emotions in farm animals: a new approach to animal welfare in applied ethology. Behav Process 60:165–180

    Article  Google Scholar 

  • Dierauf L, Gulland FM (eds) (2001) CRC handbook of marine mammal medicine, 2nd edn. CRC press, Boca Raton, FL

    Google Scholar 

  • Fitzgerald PL (2011) “morality” may not be enough to justify the EU seal products ban: animal welfare meets international trade law. J Int Wildl Law Pol 14:85–136

    Google Scholar 

  • Fraser D, Weary DM, Pajor EA, Milligan BN (1997) A scientific conception of animal welfare that reflects ethical concerns. Anim Welf 6:187–205

    Google Scholar 

  • Gage LJ (2011) Captive pinniped eye problems, we can do better. J Mar Anim Ecol 4:25–28

    Google Scholar 

  • Gonyou HW (1994) Why the study of animal behavior is associated with the animal welfare issue. J Anim Sci 72:2171–2177

    CAS  PubMed  Google Scholar 

  • Greig DJ, Gulland FM, Kreuder C (2005) A decade of live California Sea lion (Zalophus californianus) strandings along the Central California coast: causes and trends, 1991-2000. Aquat Mamm 31:11–22

    Article  Google Scholar 

  • Grindrod JAE, Cleaver JA (2001) Environmental enrichment reduces the performance of stereotypic circling behavior in captive common seals (Phoca vitulina). Anim Welf 10:53–63

    Google Scholar 

  • Guinet C, Roux JP, Bonnet M, Mison V (1998) Effect of body size, body mass, and body condition on reproduction of female south African fur seals (Arctocephalus pusillus) in Namibia. Can J Zool 76:1418–1424

    Article  Google Scholar 

  • Gulland FMD, Haulena M, Dierauf LA (2001) Seals and sea lions. In: FMD G, Dierauf LA (eds) CRC handbook of marine mammal medicine, 2nd edn. CRC Press, Boca Raton, FL, pp 907–926

    Chapter  Google Scholar 

  • Held SD, Špinka M (2011) Animal play and animal welfare. Anim Behav 81:891–899

    Article  Google Scholar 

  • Hocking DP, Salverson M, Evans AR (2015) Foraging-based enrichment promotes more varied behaviour in captive Australian fur feals (Arctocephalus pusillus doriferus). PLoS One 10:e0124615

    Article  PubMed  PubMed Central  CAS  Google Scholar 

  • Hopster H, de Jong IC (2014) Welfare of sea lions in travelling circuses, Research report, vol 770. Wageningen UR Livestock Research, Lelystad, The Netherlands, p 92

    Google Scholar 

  • Insley S, Phillips AV, Charrier I (2003) A review of social recognition in pinnipeds. Aquat Mamm 29:181–201

    Article  Google Scholar 

  • Jensen A-L, Delfour F, Carter T (2013) Anticipatory behaviour in captive bottlenose dolphins (Tursiops truncatus) – a preliminary study. Zoo Biol 32:436–444

    Article  PubMed  Google Scholar 

  • Joseph B, Antrim J (2010) Special considerations for the maintenance of marine mammals in captivity. In: Kleiman DG, Thompson KV, Kirk Baer C (eds) Wild mammals in captivity: principles and techniques for zoo management, 2nd edn. Chicago, The University of Chicago Press, pp 181–216

    Google Scholar 

  • Kastelein RA, Wiepkema PR (1988) The significance of training for the behaviour of Steller Sea lions (Eumetopias jubata) in human care. Aquat Mamm 14:39–41

    Google Scholar 

  • Kastelein RA, Wiepkema PR (1989) A digging trough as occupational therapy for Pacific walruses in human care. Aquat Mamm 15:9–17

    Google Scholar 

  • Kastelein RA, Kershaw J, Berghout E, Wiepkema PR (1995) The food consumption of south American sea lions (Otaria flaveseem). Aquat Mamm 21:43–53

    Google Scholar 

  • Kershaw JL, Hall AJ (2016) Seasonal variation in harbour seal (Phoca vitulina) blubber cortisol-a novel indicator of physiological state? Sci Rep 6:21889

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  • Le Boeuf BJ (1974) Male-male competition and reproductive success in elephant seals. Am Zool 14:163–176

    Article  Google Scholar 

  • Lefebvre L (2010) Taxonomic counts of cognition in the wild. Biol Lett. doi:10.1098/rsbl.2010.0556

    PubMed  PubMed Central  Google Scholar 

  • Leliveld LM, Langbein J, Puppe B (2013) The emergence of emotional lateralization: evidence in non-human vertebrates and implications for farm animals. Appl Anim Behav Sci 145:1–14

    Article  Google Scholar 

  • Levermann N, Galatius A, Ehlme G, Rysgaard S, Born EW (2003) Feeding behaviour of free-ranging walruses with notes on apparent dextrality of flipper use. BMC Ecol 3:1

    Article  Google Scholar 

  • Malassis R, Delfour F (2015) Sea lions’ (Zalophus californianus) use of human pointing gestures as referential cues. Learn Behav 43:101–112

    Article  PubMed  Google Scholar 

  • Manteuffel G, Puppe B, Schön PC (2004) Vocalization of farm animals as a measure of welfare. Appl Anim Behav Sci 88:163–182

    Article  Google Scholar 

  • Maple TL (2007) Toward a science of welfare for animals in the zoo. J Appl Anim Welf Sci 10:63–70

    Article  CAS  PubMed  Google Scholar 

  • Mason GJ (2010) Species differences in responses to captivity: stress, welfare and the comparative method. Trends Ecol Evol 25:713–721

    Article  PubMed  Google Scholar 

  • Mason GJ, Veasey JS (2010) How should the psychological well-being of zoo elephants be objectively investigated? Zoo Biol 29:237–255

    Article  PubMed  Google Scholar 

  • Mellish JAE, Tuomi PA, Horning M (2004) Assessment of ultrasound imaging as a noninvasive measure of blubber thickness in pinnipeds. J Zoo Wildl Med 35:116–118

    Article  PubMed  Google Scholar 

  • Mellish JAE, Calkins DG, Christen DR, Horning M, Rea LD, Atkinson SK (2006) Temporary captivity as a research tool: comprehensive study of wild pinnipeds under controlled conditions. Aquat Mamm 32:58–65

    Article  Google Scholar 

  • Mendl M, Paul ES (2004) Consciousness, emotion and animal welfare: insights from cognitive science. Anim Welf 13:17–25

    Google Scholar 

  • Mendl M, Burman OH, Parker RM, Paul ES (2009) Cognitive bias as an indicator of animal emotion and welfare: emerging evidence and underlying mechanisms. Appl Anim Behav Sci 118:161–181

    Article  Google Scholar 

  • Mendl M, Burman OH, Paul ES (2010) An integrative and functional framework for the study of animal emotion and mood. Proc R Soc Lond B Biol Sci 277:2895–2904

    Article  Google Scholar 

  • Miller EH (1975) A comparative study of facial expressions of two species of pinnipeds. Behaviour 53:268–284

    Article  Google Scholar 

  • Millman ST (2007) Sickness behavior, and its relevance to animal welfare assessment at the group level. Anim Welf 16:123–125

    CAS  Google Scholar 

  • Mononen J, Moller SH, Hansen SW, Hovland AL, Koistinen T, Lidfors L, Malkmvist J, Vinke CM, Ahola L (2012) The development of on-farm welfare assessment protocols for foxes and mink: the WelFur project. Anim Welf 21:363–371

    Article  CAS  Google Scholar 

  • Myers MJ, Litz B, Atkinson S (2010) The effects of age, sex, season and geographic region on circulating serum cortisol concentrations in threatened and endangered Steller Sea lions (Eumetopias jubatus). Gen Comp Endocrinol 165:72–77

    Article  CAS  PubMed  Google Scholar 

  • Nolen AL, Bishop LJ (2001) Animals in research and education: ethical issues. Kennedy Inst Ethics J 11:91–112

    Article  PubMed  Google Scholar 

  • Paul ES, Harding EJ, Mendl M (2005) Measuring emotional processes in animals: the utility of a cognitive approach. Neurosci Biobehav Rev 29:469–491

    Article  PubMed  Google Scholar 

  • Petrauskas LR, Atkinson SK (2006) Variation of fecal corticosterone concentrations in captive Steller Sea lions (Eumetopias jubatus) in relation to season and behavior. Aquat Mamm 32:168

    Article  Google Scholar 

  • Petrauskas L, Atkinson S, Gulland F, Mellish J, Horning M (2008) Monitoring glucocorticoid response to rehabilitation and research procedures in California and Steller Sea lions. J Exp Zool 309:73–82

    Article  CAS  Google Scholar 

  • Purser J, Radford AN (2011) Acoustic noise induces attention shifts and reduces foraging performance in three-spined sticklebacks (Gasterosteus aculeatus). PLoS One 6:e17478

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  • Pryaslova YP, Lyamin OI, Mukhametov LM (2009) Lateralized behavior in northern fur seals. Dokl Biol Sci 1:171–174

    Article  Google Scholar 

  • Renouf D, Lawson JW (1987) Quantitative aspects of harbour seal (Phoca vitulina) play. J Zool 212:267–273

    Article  Google Scholar 

  • Renouf D (1991) The behaviour of pinnipeds. Dordrecht, The Netherlands, Springer Science & Business Media

    Book  Google Scholar 

  • Reynolds JE, Rommel SA (eds) (1999) Biology of marine mammals. Smithsonian Institution Press, Washington, DC, p 578

    Google Scholar 

  • Riedman M (1990) The pinnipeds: seals, sea lions, and walruses. University of California Press, Berkeley, California, p 439

    Google Scholar 

  • Robeck TR, Atkinson AKC, Brook F (2001) Reproduction. In: FMD G, Dierauf LA (eds) CRC handbook of marine mammal medicine, 2nd edn. CRC Press, Boca Raton, FL, pp 193–236

    Chapter  Google Scholar 

  • Roberts SP, Demaster DP (2001) Pinniped survival in captivity: annual survival rates of six species. Mar Mamm Sci 17:381–387

    Article  Google Scholar 

  • Roche JR, Friggens NC, Kay JK, Fisher MW, Stafford KJ, Berry DP (2009) Invited review: body condition score and its association with dairy cow productivity, health, and welfare. J Dairy Sci 92:5769–5801

    Article  CAS  PubMed  Google Scholar 

  • Rogers LJ (2010) Relevance of brain and behavioural lateralization to animal welfare. Appl Anim Behav Sci 127:1–11

    Article  Google Scholar 

  • Roletto J (1993) Hematology and serum chemistry values for clinically healthy and sick pinnipeds. J Zoo Wildl Med 24:145–157

    Google Scholar 

  • Rosen DA (2009) Steller Sea lions Eumetopias jubatus and nutritional stress: evidence from captive studies. Mammal Rev 39:284–306

    Article  Google Scholar 

  • Rushen J, Mason G (2008) A decade-or-more’s progress in understanding stereotypic behavior. In: Mason G, Rushen J (eds) Stereotypic animal behavior: fundamentals and applications to welfare. CAB International, UK, pp 1–18

    Google Scholar 

  • Sapolsky RM (2005) The influence of social hierarchy on primate health. Science 308:648–652

    Article  CAS  PubMed  Google Scholar 

  • Schusterman RJ, Kastak D, Levenson DH, Reichmuth CJ, Southall BL (2000) Why pinnipeds don’t echolocate. J Acoust Soc Am 107:2256–2264

    Article  CAS  PubMed  Google Scholar 

  • Schusterman RJ, Southall BL, Kastak D, Reichmuth Kastak C (2001) Pinniped vocal communication: Form and function. In: Proceedings of the 17th International Congress on Acoustics, Rome, Italy, pp 1-2)

    Google Scholar 

  • Schusterman RJ, Kastak CR, Kastak D (2002) The cognitive sea lion: meaning and memory in the laboratory and in nature. The cognitive animal. Empirical and theoretical perspectives on animal cognition. The MIT Press, Cambridge, Massachusetts, pp 217–228

    Google Scholar 

  • Scott EM, Mann J, Watson-Capps JJ, Sargeant BL, Connor RC (2005) Aggression in bottlenose dolphins: evidence for sexual coercion, male-male competition, and female tolerance through analysis of tooth-rake marks and behaviour. Behaviour 142:21–44

    Article  Google Scholar 

  • Small RJ, Demaster DP (1995) Survival of five species of captive marine mammals. Mar Mamm Sci 11:209–226

    Article  Google Scholar 

  • Smith BP, Litchfield CA (2010) An empirical case study examining effectiveness of environmental enrichment in two captive Australian sea lions (Neophoca cinerea). J Appl Anim Welf Sci 13:103–122

    Article  CAS  PubMed  Google Scholar 

  • Sneddon LU, Elwood RW, Adamo SA, Leach MC (2014) Defining and assessing animal pain. Anim Behav 97:201–212

    Article  Google Scholar 

  • Spruijt BM, van den Bos R, Pijlman FT (2001) A concept of welfare based on reward evaluating mechanisms in the brain: anticipatory behaviour as an indicator for the state of reward systems. Appl Anim Behav Sci 72:145–171

    Article  PubMed  Google Scholar 

  • Swaisgood RR (2007) Current status and future directions of applied behavioral research for animal welfare and conservation. Appl Anim Behav Sci 102:139–162

    Article  Google Scholar 

  • Thompson PM, Miller D, Cooper R, Hammond PS (1994) Changes in the distribution and activity of female harbour seals during the breeding season: implications for their lactation strategy and mating patterns. J Anim Ecol 63:24–30

    Article  Google Scholar 

  • Trites AW, Donnelly CP (2003) The decline of Steller Sea lions Eumetopias jubatus in Alaska: a review of the nutritional stress hypothesis. Mammal Rev 33:3–28

    Article  Google Scholar 

  • Trumble SJ, Castellini MA, Mau TL, Castellini JM (2006) Dietary and seasonal influences on blood chemistry and hematology in captive harbor seals. Mar Mamm Sci 22:104–123

    Article  Google Scholar 

  • Twiss SD, Anderson SS, Monaghan P (1998) Limited intra-specific variation in male grey seal (Halichoerus grypus) dominance relationships in relation to variation in male mating success and female availability. J Zool 246:259–267

    Article  Google Scholar 

  • Veasey J (2006) Concepts in the care and welfare of captive elephants. International Zoo Yearbook 40:63–79

    Google Scholar 

  • Veissier I, Butterworth A, Bock B, Roe E (2008) European approaches to ensure good animal welfare. Appl Anim Behav Sci 113:279–297

    Article  Google Scholar 

  • Vicino GA, Marcacci ES (2015) Intensity of play behavior as a potential measure of welfare: a novel method for quantifying the integrated intensity of behavior in African elephants. Zoo Biol 34:492–496

    Article  PubMed  Google Scholar 

  • Waiblinger S, Boivin X, Pedersen V, Tosi MV, Janczak AM, Visser EK, Jones RB (2006) Assessing the human–animal relationship in farmed species: a critical review. Appl Anim Behav Sci 101:185–242

    Article  Google Scholar 

  • Waller BM, Micheletta J (2013) Facial expression in nonhuman animals. Emot Rev 5:54–59

    Article  Google Scholar 

  • Walsh MT, Andrews BF, Antrim J (2001) Walruses. In: FMD G, Dierauf LA (eds) CRC handbook of marine mammal medicine, 2nd edn. CRC Press, Boca Raton, FL, pp 927–937

    Chapter  Google Scholar 

  • Walsh MT, Gaynor EV (2001) Thermal imaging of marine mammals. In: FMD G, Dierauf LA (eds) CRC handbook of marine mammal medicine, 2nd edn. CRC Press, Boca Raton, FL, pp 643–652

    Chapter  Google Scholar 

  • Wartzok D (1991) Physiology of behaviour in pinnipeds. In: Renouf D (ed) The behaviour of pinnipeds. Springer Science & Business Media, Dordrecht, NE, pp 236–299

    Chapter  Google Scholar 

  • Webster J (2005) Animal welfare: limping towards Eden. Blackwell Publishing Ltd, Oxford, UK

    Book  Google Scholar 

  • Welfare Quality® (2009a) Welfare quality® assessment protocol for cattle (fattening cattle, dairy cows, veal calves). Welfare Quality® Consortium, Lelystad, The Netherlands

    Google Scholar 

  • Welfare Quality® (2009b) Welfare quality® assessment protocol for pigs. Welfare Quality® Consortium, Lelystad, The Netherlands

    Google Scholar 

  • Welfare Quality® (2009c) Welfare quality® assessment protocol for poultry. Welfare Quality® Consortium, Lelystad, The Netherlands

    Google Scholar 

  • Wells DL, Irwin RM, Hepper PG (2006) Lateralised swimming behaviour in the California Sea lion. Behav Process 73:121–123

    Article  Google Scholar 

  • Whitham JC, Wielebnowski N (2013) New directions for zoo animal welfare science. Appl Anim Behav Sci 147:247–260

    Article  Google Scholar 

  • Wierucka K, Siemianowska S, Woźniak M, Jasnosz K, Kieliszczyk M, Kozak P, Sergiel A (2016) Activity Budgets of Captive Cape Fur Seals (Arctocephalus pusillus) Under a Training Regime. Appl Anim Wel Sci 19:62–72

    Google Scholar 

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Clegg, I.L.K., Butterworth, A. (2017). Assessing the Welfare of Pinnipeds. In: Butterworth, A. (eds) Marine Mammal Welfare. Animal Welfare, vol 17. Springer, Cham. https://doi.org/10.1007/978-3-319-46994-2_16

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