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Welfare of fish

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Fish welfare and in general the welfare of animals is a term that declares a painless and not stressfull state of being. During the previous years this term has been questioned by the producers, however, nowadays, it is actually legally regulated in several countries. For fishes, few are the examples of such enforcement, such as in Norway and Germany where the killing of fish for human consumption bases on techniques compatible with their welfare. All the animals need a stable environment of being so that they can survive, develop and reproduce. The absence of such a stability is termed as stress. There are various causes of producing stress in fish. Firsdy, almost all management procedures that are practiced commercially result in stress (e.g. transport). Secondly, inadequate conditions of farming, such as the high stocking-density and an unbalanced food, place the welfare of fishes at risk. To the same result may also lead other factors, such as the unsuitable quality of the rearing water, the techniques that are used for the prevention and treatment of illnesses, the techniques of killing and also transport.


Welfare; fishes; stress

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AGRO 4-1 (2002). Σύστημα Διαχείρισης για τη Διασφάλιση Ποιότητας Προϊόντων Ιχθυοκαλλιέργειας-Προδιαγραφή Παραγωγής-Ποιοτικός Έλεγχος Προϊόντος. AGROCERT. Σύστημα Διαχείρισης για τη Διασφάλιση Ποιότητας Προϊόντων Ιχθυοκαλλιέργειας. ΟΠΕΓΕΠ

AGRO 4-2 (2002). Σύστημα Διαχείρισης για τη Διασφάλιση Ποιότητας Προϊόντων Ιχθυοκαλλιέργειας-Προδιαγραφή Λειτουργίας Εγκαταστάσεων Συσκευασίας. AGROCERT.

Σύστημα Διαχείρισης για τη Διασφάλιση Ποιότητας Προϊόντων Ιχθυοκαλλιέργειας. ΟΠΕΓΕΠ

Atay D, Olmez M, Gulen AS, Bekcan S (1988) The effects of different stocking rates on the growth of rainbow trout (Salmo gairdneri R.) in concrete canals at the Cifteler Sakaryabasi Production Station. J Aquat Prod 2: 23-33

Balm PHM (1997) Immune-endocrine interactions. In Fish Stress and Health in Aquaculture (Iwama, G.K., Pickering, A.D., Schreck, C.B. & Sumpter, J.P., eds), pp. 73-94. Society for Experimental Biology.Seminar Series: 62

Bandeen J, Leatherland JF (1997) Transportation and handling stress of white suckers raised in cages. Aquacult Int 5: 385-396

Barnett CW, Pankhurst NW (1998) The effects of common laboratory and husbandry practices on the stress response of greenback flounder (Rhombosolea tapirinia, Günther 1862). Aquaculture 162: 313-329

Barton ΒΑ, Iwama GK (1991) Physiological changes in fish from stress in aquaculture with emphasis on the response ands effects of corticosteroids. Annual Review of Fish Disease 13-26.

Barton BA, Schreck CB, Barton LD (1987) Effects of chronic Cortisol administration and daily acute stress on growth, physiological condition, and stress responses in juvenile rainbow trout. Dis Aquat Organ 2: 173-185.

Bateson Ρ (1991) Assessment of pain in animals. Anim. Behav. 42 (5), 827-839

Boglione C, Gagliardi F, Scardi M, Cataudella S (2001) Skeletal descriptors and quality assessment in larvae and post-larvae of wild and reared gilthead bream (Spams aurata L). Aquaculture 192:1-22.

BØgwald J, Stensvâg K, Stuge TB, Jorgensen Ø (1994) Tissue localisation and immune responses in Atlantic salmon (Salmo salar L.), after oral administration of Aeromonas salmonicida, Vibrio anguillarum and Vibrio salmonicida antigens. Fish Shellfish Immun 4: 353-368.

Brett JR (1979) Environmental factors and growth. In Rainbow trout growth in circular tanks. Consequences of different loading densities. US Department of the Interior, Fish and Wildlife

Technical Report 86: 16.

Brown RE (1994) An Introduction to Neuroendocrinology. Cambridge, Cambridge University Press

Butler AB (1994) The evolution of the dorsal pallium in the telencephalon of amniotes: cladistic analysis and a new hypothesis. Brain Research Reviews 19, 66-101.

Campbell PM, Pottinger TG, Sumpter JP (1992) Stress reduces the quality of gametes produced by rainbow trout. Biol Reprod 47:1140-1150.

Chandroo KP, Yue S, Moccia RD (2004) An evaluation of current perspectives on consciousness and pain in fishes. Fish and Fisheries, 5: 281-295

Chervova LS (1997) Pain sensivity and behaviour of fishes. J Ichth, 37: 106-111

Cottrell DF, Molony V (1995) Afferent activity in the superior spermatic nerve of lambs: The effects of application of rubber castration rings. Vet. Res. Comm. 19, 503-515

Council of Europe (2002) Standing committee of the European convention for the protection of animals kept for farming purposes (T-AP). 44th Meeting, Strasbourg, 3-6 December

Coves D (1999) Welfare assessment in reared fish. COST 827-5th FP, La Rochelle, CREMA de l'Houmeau (France), 4-6 th June 99

Davis SA, Schwedler TE, Tomasso JR, Collier JA (1991) Production characteristics of pansized channel catfish in cages and open ponds. J World Aquacult Soc 22(3): 183-186

De Tolla LJ, Srinivas S, Whitaker BR, AndrewsC, Hecker B, Kane A, Reimschuessel R (1995) Guidelines for the care and use of fish in research. ILAR Journal Online, 37(4)

EFSA (2004) The welfare of animals during tranport. The EFSA Journal

Ewing RD, Ewing SK (1995) Review of the effects of rearing density on the survival to adulthood for Pacific salmon. Prog Fish Cult 57: 1-25

Farbridge KJ, Leatherland JF (1992) Plasma growth hormone levels in fed and fasted rainbow trout (Oncorhynchus mykiss) are decreased following handling stress. Fish Physiol Biochem 10: 67-73

FAWC (1996) Report on the Welfare of Farmed Fish. Surrey:Farm Animal Welfare Council

Flajnik MF (1996) The immune system of ectothermic vertebrates. Vet Immunol Immunop 54: 145-150

Flodmark LEW, Urke HA, Halleraker JH, Arnekleiv JV, VJlestad LA, Poléo ABS (2002) Cortisol and glucose responses in juvenile brown trout subjected to a fluctuating flow regime in an artificial stream. J Fish Biol 60: 238-248

Fraser AF, Broom DM (1990) Farm animal behaviour and welfare. 3nd ed. London:Βailliere Tindall

Fromm PO (1980) A review of some physiological and toxicological responses of freshwater fish to acid stress. Environ Biol Fish 5:79-93

Gentle MJ, Hunter LN, Corr SA (1997) Effects of caudolateral neostriatal ablations on pain-related behaviour in the chicken. Physiol. Behav. 61 (4), 493-498

Gentle MJ, Tilston VL (2000) Nociceptors in the legs of poultry: implications for potential pain in pre-slaughter shackling. Anim. Welfare 9 (3), 227-236

Hardy RW (1989) Diet preparation. In:Halver JE, editor. Fish nutrition. London: Academic Press, 475-548

Http://europa.eu.int/comm/food/animal/welfare/farm/legislation en.htm


Kestin SC (1994) Pain and stress in fish. Royal Society for the prevention of cruelly to animals, Horsham

Kevetter AG, Willis WD (1984) Collateralization in the spinothalamic tract: new methodology to support or deny phylogenetic theories. Brain Research Reviews 7: 1-14

Klein J (1997) Origins of the anticipatory immune responses. 7th Congress of the International Society of Developmental and Comparative Immunology, July 21-25, Williamsburg, Virginia

Kramer DL (1987) Dissolved oxygen and fish behaviour. Environ Biol Fish 18: 81-92

Lambooij E, Van de Vis JW, Kloosterboer RJ, Pieterse C (2002) Welfare aspects of live chilling and freezing of farmed eel (Anguilla anguilla L.): neurological and behavioural assessment Aquaculture 210: 159-169

Lambooij E, Kloosterboer RJ, Gerritzen MA, Van de Vis JW (2005) Assessment of electrical stunning in fresh water of African Catfish (Clarias gariepinus) and chilling in ice water for loss of consciousness and sensibility. Aquaculture, In press

Li WH, Brocksen W (1977) Approaches to the analysis of energetic cost of intraspecific competition for space in rainbow trout (Salmo gairdneri) J Fish Biol 11: 329-341

Lymbery Ρ (1992) The welfare of Farmed Fish. Petersfield, Hampshire:Compassion in World Farming

Lymbery Ρ (2002) In too deep-the welfare of intensively farmed fish. Petersfield, Hampshire:Compassion in World Farming

Maule AG, Schreck CB (1990) Glucocorticoid receptors in the leucocytes and gill of juvenile coho salmon (Onchorhynchus kisutch). Gen Comp Endocr 77: 448-455

McGeown D, Danbury TC, Waterman-Pearson AE, Kestin SC (1999) Effect of carprofen on lameness in broiler chickens. Vet. Ree. 144 (24), 668-671

Midtlyng Ρ J (1997) Vaccinated fish welfare: protection versus sideeffects. Dev Biol Stand 90:371-379

Moe MA (1992) The marine aquarian reference: Systems and invertebrates. Plantation, FL: Green Turtle Publications

Nickum JG (1988) Guidelines for use of fishes in field research fisheries. American Fisheries Society 13(12): 16-22

Ong RM, Morris JP O'Dwyer JK, Barnett JL, Hemsworth PH, Clarke IJ (1997) Behavioural and EEG changes in sheep in response to painful acute electrical stimuli. Aust. Vet. J. 75 (3), 189-193

Ortuno J, Esteban MA, Meseguer J (2001) Effects of short-term crowding stress on the gilthead seabream (Sparus aurata L.) innate immune response. Fish Shellfish Immun 11: 187-197

Okawara Y, Ko D, Morely SD, Richter D, Lederis KP (1992) In situ hybridisation of corticopin-releasing factor encoding messenger RNA in the hypothalamus of the white sucker (Catostamus commersoni). Cell Tissue Res 267: 545-549

Pankhurst NW, Van der Kraak G (1997) Effects of stress on reproduction and growth of fish. In Fish Stress and Health in Aquaculture (Iwama, G.K., Pickering, A.D., Schreck, C.B. & Sumpter, J.P., eds), pp. 73-94. Society for Experimental Biology. Seminar Series: 62

Pickering AD, Pottinger TG, Sumpter JP, Carragher JF, LeBail PY (1991) Effects of acute and chronic stress on the levels of circulating growth hormone in the rainbow trout (Oncorhynchus mykiss). Gen Comp Endocr 83: 86-93

Pickering AD, Pottinger TG (1985) Acclimation of the brown trout (Salmo trutta L.) to the stress of daily exposure to malachite green. Aquaculture 44: 145-152

Pickering AD, Pottinger TG (1989) Stress response and disease resistance in salmonid fish: effects of chronic elevation of plasma Cortisol. Fish Physiol Biochem 7: 253-258

Pottinger TG, Moran TA (1993) Differences in plasma Cortisol and cortisone dynamics during stress in two strains of rainbow trout (Oncorhynchus mykiss). J Fish Biol 43: 121-130

Pottinger TG, Knudsen FR, Wilson J (1994) Stress-induced changes in the affinity and abundance of cytostolic cortisol-binding sites in the liver of rainbow trout (Oncorhynchus mykiss) Walbaum, are not accompanied by changes in measurable nuclear binding. Fish Physiol Biochem 12: 499-511

Press CMcL (1998) Immunology of fishes. In Handbook of vertebrate immunology (Pastoret, P.P., Griebel, P., Bazin H. & Govaerts, Α., eds.), pp. 3-61. Academic Press Ltd, London, UK

Puste AM, Das DK (2001) Impact of air pollutant emissions on the ecosystems in the vicinity of industrial areas of Indian subtropics. Water Air Soil Pollution 130: 843-848

Ring0 E, Gatesoupe FJ (1998) Lactic acid bacteria in fish: a review. Aquaculture 160: 177-203

Robb DH, Wotton SB, McKinstry JL (2000) Commercial slaughter methods used on Atlantic salmon : determination of the onset of brain failure by electroencephalography. Vet Ree, 147(11): 298-303

Rotllant J, Balm PHM, Pérez-S_nchez J, Wendelaar-Bonga SE, Tort L (2001) Pituitary and interrenal funcion in gilthead sea bream (Sparus aurata L., Teleostei) after handling and confinement stress. Gen Comp Endocr 121: 333-342

Rushen J, Foxcroft G, DePassille AM (1993) Nursing-induced changes in pain sensitivity, prolactin and somatotropin in the pig. Physiol. Behav. 53 (2), 265-270

Schreck CB (2000) Accumulation and long-term effects of stress in fish. Ppl47-158 in The Biology of animal Sress. Eds. G.P. Moberg & J.A. Mench. CABI Publishing

Schwedler TE, Johnson SK (Winter 1999/2000) Responsible care and health maintenance of fish in commercial aquaculture. Animal Welfare Information Center Bulletin, 10(3-4)

Sneddon LU (2003) The evidence for pain in fish: the use of morphine as an analgesic. Applied Animal Behaviour Science 83:153-162

Sneddon LU (2006) Ethics and welfare: Pain perception in fish. Bull Eur Assoc Fish Pathol 26(1): 6-10

Sneddon LU, Braithwaite VA, Gentle MJ (2003) Do fishes have nociceptors? Evidence for the evolution of a vertebrate sensory system. Proceedings of the Royal Society of London, Series Β 270: 1115-1121

Spotte S (1979) Fish and Invertebrate Culture: Water Management in Closed Systems. 2nd Edition, John Wiley&Sons, New York, 179

Sumpter JP (1997) The endocrinology of stress. Fish Stress and Health in Aquaculture (Iwama, G.K., Pickering, A.D., Sumpter, J.P. & Schreck, C.B., eds), pp. 95-118. (Society for Experimental Biology seminar series 62)

Sutanto W, de Kloet ER (1994) The use of various animals in the study of stress and stress-related phenomena. Laboratory Animals 28: 293-306

Thornton PD, Waterman-Pearson AE (1999) Quantification of the pain and distress responses to castration in young lambs. Res. Vet. Sci. 66 (2), 107-118

Thorpe JE, Mangel M, Metcalfe NB, Huntingford FA (1998) Modelling the proximate basis of salmonid life history variation, with application to Atlantic salmon, (Salmo salar L.) Evol Ecol 12: 581-598

Tomasso JR (1993) Environmental requirements and diseases of temperate freshwater and estuarine fishes. ImStoskopf MK, editor. Fish Medicine. Philadelphia:WB Saunders 240-246

Tsantilas H, Galatos AD, Athanassopoulou F (2005). Use of anaesthetic agents in farmed fish. ΠΕΚΕ 56(2): 130-137.

Tsigos C, Chrousos GP (1994) Physiology of the hypothalamicpiturity-adrenal axis in health and dysregulation in psychiatric and autoimmune disorders. Endocrin Metab Clin 23: 451-466

Tucker CS (1993) Water analysis. In: Stoskopf MK, editor. Fish Medicine. Philadelphia, PA:WB Saunders 166-197

Warr GW (1997) The adaptive immune system offish. Developments in Biological Standardization 90: 15-21

Waring CP, Stagg RM, Poxton MG (1992) The effect of handling on flounder (Platichthys flesus L.) and Atlantic salmon (Salmo salar L.). J Fish Biol 41: 131-144

Weary DM, Braithwaite LA, Fraser D (1998) Vocal responses to pain in piglets. App. Anim. Behav. Sci. 56 (2-4), 161-172

Weary DM, Fraser D (1995) Signalling need - costly signals and animal welfare assessment. App. Anim. Behav. Sci. 44 (2-4), 159-169

Wedemeyer GA, Barton BA, McLeay DJ (1990) Stress and acclimation. Methods for Fish Biology (Schreck, C.B. & Moyle, P.B.,eds), pp. 451-489. American Fisheries Society, Bethesda, Maryland

Weld MM, Fryer JN, Rivier J, Lederis Κ (1987) Inhibition of CRFand Urotensin I stimulated ACTH release from goldfish pituitary cell columns by the CRF analogue α-helical CRF-(9-41). Regulatory Peptides 19: 273-280

Wendelaar Bonga SE (1997) The stress response in fish. Physiology Review 77: 591-625


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