Light intensity and suppression of nocturnal plasma melatonin in Arctic charr (Salvelinus alpinus)

Aarseth, 2010, Melatonin implantation during spring and summer does not affect the seasonal rhythm of feeding in anadromous Arctic charr (Salvelinus alpinus), J. Polar Biol., 33, 379, 10.1007/s00300-009-0715-1 Alvarado, 2015, Melatonin induced changes in kiss/gnrh gene expression patterns in the brain of male sea bass during spermatogenesis, Comp. Biochem. Physiol. A, 185, 69, 10.1016/j.cbpa.2015.03.010 Aoki, 1998, Minimum light intensity required to suppress nocturnal melatonin concentration in human saliva, Neurosci. Lett., 91, 10.1016/S0304-3940(98)00548-5 Bayarri, 2010, Continuous light and melatonin: daily and seasonal variations of brain binding sites and plasma concentration during the first reproductive cycle of sea bass, Gen. Comp. Endocrinol., 169, 58, 10.1016/j.ygcen.2010.07.007 Boeuf, 1999, Does light have an influence on fish growth?, Aquaculture, 129, 10.1016/S0044-8486(99)00074-5 Bottengård, 2008, Elevated spring temperature stimulates growth, but not smolt development, in anadromous Arctic charr, (Salvelinus alpinus). Comp. Biochem. Physiol. A, 151, 596, 10.1016/j.cbpa.2008.07.019 Cowan, 2011, The effect of combining shading and continuous lighting on the suppression of sexual maturation in outdoor-reared Atlantic cod, Gadus morhua, Aquaculture, 320, 113, 10.1016/j.aquaculture.2011.07.019 Dempson, 1985, Life history of anadromous Arctic charr, Salvelinus alpinus, in the Fraser river, Northern Labrador, Can. J. Zool., 63, 315, 10.1139/z85-048 Falcón, 2011, Melatonin, the time keeper: biosynthesis and effects in fish, Cybium, 35, 3 Falcón, 1989, Regulation of melatonin secretion in a photoreceptive pineal organ: an in vitro study in the pike, J. Neurosci., 9, 1943, 10.1523/JNEUROSCI.09-06-01943.1989 Handeland, 2013, Low light intensity can reduce Atlantic salmon smolt quality, Aquaculture, 384–387, 19, 10.1016/j.aquaculture.2012.12.016 Hansen, 2017, Effects of light source and intensity on sexual maturation, growth and swimming behavior of Atlantic salmon in sea cages, Aquacult. Environ. Interactions, 9, 193, 10.3354/aei00224 Iigo, 2007, Lack of circadian regulation of in vitro melatonin release from the pineal organ of salmonid teleosts, Gen. Comp. Endocrinol., 154, 91, 10.1016/j.ygcen.2007.06.013 Iversen, 2016, Approaches for delaying sexual maturation in salmon and their possible ecological and ethical implications, J. Appl. Aquaculture, 28, 330, 10.1080/10454438.2016.1212756 Johnston, 2003, Plasticity of muscle fibre number in seawater stages of Atlantic salmon in response to photoperiod manipulation, J. Exp. Biol., 206, 3425, 10.1242/jeb.00577 Liu, 2016, Preventing sexual maturation in Arctic charr by 24h light overwinter and suppressing somatic growth, Aquaculture, 464, 537, 10.1016/j.aquaculture.2016.07.038 Liu, 2018, Efficacy of 24h light to reduce maturation in Arctic charr (Salvelinus alpinus) is dependent on both the start date and duration, Aquaculture, 484, 44, 10.1016/j.aquaculture.2017.10.039 Maiolo, 2015, Effects of photoperiod and melatonin implants on feed intake in Atlantic salmon (Salmo salar L.) postsmolts, Ital. J. Anim. Sci., 14, 664, 10.4081/ijas.2015.4098 Nakane, 2010, A mammalian neural tissue opsin (opsin 5) is a deep brain photoreceptor in birds, PNAS, 107, 15264, 10.1073/pnas.1006393107 Oppedal, 1997, Light intensity affects growth and sexual maturation of Atlantic salmon (Salmo salar) postsmolts in sea cages, Aquat. Living Resour., 10, 351, 10.1051/alr:1997038 Porter, 2001, Temperature, light intensity and plasma melatonin levels in juvenile Atlantic salmon, J. Fish Biol., 58, 431, 10.1111/j.1095-8649.2001.tb02262.x Porter, 1999, The use of cage lighting to reduce plasma melatonin in Atlantic salmon (Salmo salar) and its effects on the inhibition of grilsing, Aquaculture, 176, 237, 10.1016/S0044-8486(99)00113-1 Porter, 1998, The role of melatonin and the pineal gland on development and smoltification of Atlantic salmon (Salmo salar) parr, Aquaculture, 168, 139, 10.1016/S0044-8486(98)00345-7 Servili, 2013, Melatonin inhibits GnRH-1, GnRH-3 and GnRH receptor expression in the brain of the European sea bass, Dicentrarchus labrax, Int. J. Mol. Sci., 14, 7603, 10.3390/ijms14047603 Skulstad, 2013, Effects of light regime on diurnal plasma melatonin levels and vertical distribution in farmed Atlantic cod (Gadus morhua L.), Aquaculture, 414–415, 280, 10.1016/j.aquaculture.2013.08.007 Stefansson, 1993, Growth and parr-smolt transformation of Atlantic salmon (Salmo salar L.) under different light intensities and subsequent survival and growth in seawater, Aquac. Eng., 13, 231, 10.1016/0144-8609(93)90014-3 Strand, 2008, Keeping track of time under ice and snow in a sub-Arctic lake: plasma melatonin rhythms in Arctic charr overwintering under natural conditions, J. Pineal Res., 44, 227, 10.1111/j.1600-079X.2007.00511.x Taylor, 2006, Photoperiod can be used to enhance growth and improve feeding efficiency in farmed rainbow trout, Oncorhynchus mykiss, Aquaculture, 256, 216, 10.1016/j.aquaculture.2006.02.027 Thimijan, 1983, Photometric, radiometric, and quantum light units of measure: a review of procedures for interconversion, Hortscience, 18, 818, 10.21273/HORTSCI.18.6.818 Vera, 2010, Differential light intensity and spectral sensitivities of Atlantic salmon, European sea bass and Atlantic cod pineal glands ex vivo, Gen. Comp. Endocrinol., 165, 25, 10.1016/j.ygcen.2009.05.021 Zachmann, 1992, Effect of photoperiod and different intensities of light exposure on melatonin levels in the blood, pineal organ, and retina of the brook trout (Salvelinus fontinalis Mitchill), Can. J. Zool., 70, 25, 10.1139/z92-004