The Influence of Light Intensity on Growth of Larval Haddock

Effect of light intensity on growth, survival and skin color of juvenile Chinese longsnout catfish (Leiocassis longirostris Günther)

“…That the best growth was obtained at medium light intensities (74-312 lx) than at others was in accordance with better growth at 3.15 Amold s À 1 d m À 2 in haddock larvae (Downing and Litvak, 1999), 87 lx in plaice larvae (Huse, 1994), 100 lx in sea bass (Cuvier-Péres et al, 2001), and 300 lx in Asian sea bass fry (Fermin and Seronay, 1997). Some species can grow and develop at low light intensity, such as striped bass larvae at 1 lx (Chesney, 1989), larvae cod at 1 lx (Huse, 1994), juvenile halibut at 1-10 lx (Hole and Pittman, 1995), juvenile haddock at 30 lx (Trippel and Neil, 2003).…”

“…Gardner and Maguire (1998) used only two light intensity treatments and concluded that further research was required to clarify the effect of light intensity on survival and growth, especially with higher intensities. The effect of light intensity on the survival and growth of larvae or juveniles has been studied in flatfish larvae (Blaxter, 1986), cod larvae (Huse, 1994), Australian giant crab larvae (Gardner and Maguire, 1998), larval haddock (Downing and Litvak, 1999), Atlantic cod larvae (Puvanendran and Brown, 2000), sea bass post-lavae (Cuvier-Péres et al, 2001) and juvenile haddock (Trippel and Neil, 2003). Light intensity was also reported to affect swimming activity and feeding (Petrell and Ang, 2001;Almazán-Rueda et al, 2004), cannibalism (Hecht and Pienaar, 1993;Gardner and Maguire, 1998;Kestemont et al, 2003), skin color (Rotllant et al, 2003), physiological hormone (Boeuf and Le Bail, 1989), metabolism (Appelbaum and Kamler, 2000), initiation of ecdysis (Waddy and Aiken, 1991), and metamorphosis (Eagles et al, 1986;Puvanendran and Brown, 2002).…”

The effect of a 24-hour photoperiod on the survival, growth and swim bladder inflation of pre-flexion yellowfin tuna (Thunnus albacares) larvae

“…Downing and Litvak (2000) reported no benefit to haddock (Melanogrammus aeglefinus) larvae reared under continuous light, however their control photoperiod of 15L:9D was considerably longer than most other…”

Impact of Different Colors of Artificial Light on Pigmentation and Growth Performance of Hybrid Red Tilapia (Oreochromis mosambicus × O. hornorum) Reared in Saline Well Water

“…Also, at the end of the experimental period, ten fishes are randomly environmental colors are determining factors of skin color intensity and pattern overall the fish body. One of the environmental characteristic that affects the fish physiology is environmental color, which modulate several parameters such as; feeding [20], growth [21], reproduction [22], sex determination [23], aggression [24], larval jaw malformation [25], and stress response [26]. Moreover, fish can alter their color in response to environmental conditions, physiological challenges, stressful stimuli [27] and cultural condition (such as background color in red porgy, Pagrus pagrus tanks) [28].…”