Influence of light intensity and photoperiod on embryonic development, survival and growth of threatened catfish Ompok bimaculatus early larvae

2020 ◽  
Vol 97 (3) ◽  
pp. 740-752
Author(s):  
Kalpana Arambam ◽  
Soibam Khogen Singh ◽  
Pradyut Biswas ◽  
Arun Bhai Patel ◽  
Alok Kumar Jena ◽  
...  
Keyword(s):  
Light Intensity ◽  
Embryonic Development ◽  
Survival And Growth ◽  
Ompok Bimaculatus ◽  
Early Larvae

Effects of light intensity and photoperiod on survival and growth of walleye pollock (Gadus chalcogrammus) larvae

2021 ◽  
Vol 33 (4) ◽  
pp. 859-865
Author(s):  
Ki-Wook LEE ◽  
Gyeong-Sik HAN ◽  
Soon-Gyu BYUN ◽  
Woo-Jin KIM ◽  
Kyoung-Duck KIM ◽  
...  
Keyword(s):  
Light Intensity ◽  
Walleye Pollock ◽  
Survival And Growth

Does light intensity affect embryonic development of squid (Heterololigo bleekeri)?

2004 ◽  
Vol 84 (6) ◽  
pp. 1215-1219 ◽  
Author(s):  
Yuzuru Ikeda ◽  
Kingo Ito ◽  
Gen Matsumoto
Keyword(s):  
Body Size ◽  
Light Intensity ◽  
Embryonic Development ◽  
Early Stage ◽  
Constant Darkness ◽  
Light Intensities ◽  
Development Duration ◽  
Experimental Group ◽  
Effect Of Light

The effect of light intensity on the course of embryonic development of squid (Heterololigo bleekeri) was examined. Heterololigo bleekeri embryos at an early stage were incubated in the egg cases under six to seven gradients of light intensities which varied from constant darkness to intensive light >1000 lx (12L:12D for all experimental groups except for the constant darkness group). Duration of hatching in every experimental group ranged from seven to 15 days with a peak for ≈30–50% of total number of hatchlings. However, there were no particular relationships between light intensities and duration of embryonic development, duration of hatching, number of hatchlings at hatching peak, and body size of hatchlings. In all groups, body size of hatchlings increased up to seven days post-hatching and thereafter did not change remarkably. Just after hatching, strongly positive photo taxis was observed for H. bleekeri

Light intensity affects the survival and growth of matrinxã larvae, Brycon amazonicus (Spix & Agassiz, 1829)

2019 ◽  
Vol 50 (9) ◽  
pp. 2410-2418 ◽  
Author(s):  
Reinaldo Luzeiro Muller ◽  
Marle Angélica Villacorta‐Correa ◽  
Thaís Billalba Carvalho
Keyword(s):  
Light Intensity ◽  
Survival And Growth

scholarly journals Larval growth and survival in Indian Butter Catfish, Ompok bimaculatus (Bloch): effect of light intensity and photoperiod

2019 ◽  
Author(s):  
Kalpana Arambam ◽  
Pradyut Biswas ◽  
Soibam Khogen Singh ◽  
A. B. Patel ◽  
Alok Kumar Jena ◽  
...  
Keyword(s):  
Light Intensity ◽  
Larval Growth ◽  
Maximum Growth ◽  
Continuous Darkness ◽  
Growth And Survival ◽  
Light Intensities ◽  
Randomized Design ◽  
Significant Difference ◽  
Ompok Bimaculatus ◽  
Effect Of Light

AbstractTwo sequential indoor rearing trials each of 21 days duration were conducted to investigate the effect of light intensity and photoperiod respectively on the growth and survival of Ompok bimaculatus larvae. In first trial, five different light intensities viz. 0, 300, 500, 900, 1200 lx were applied randomly to 800 larvae (0.003 g; 0.51 cm) stocked in triplicate following a completely randomized design into aquarium (30.0 x 15.0 x 15.0 cm) tanks. Sequentially, in second trial, five photoperiod cycles (light: dark, L: D) namely, 24L: 0D, 16L: 8D, 12L: 12D, 8L: 16D and 0L: 24D in combination with the best performing light intensity (300 lx) as observed from the first trial were employed in triplicates in similar set up. From the first trial, significantly higher survival was observed in 0 and 300 lx, whereas growth was highest in 900 lx (P < 0.05). In the second trial, survival was higher in continuous darkness (0L: 24D), whereas, maximum growth was recorded in 24L: 0D and 16L: 8D groups (P < 0.05). Performance index (PI) showed no significant difference (P > 0.05) among 0 and 300 lx light intensities, but were reduced at higher light intensities. The lowest PI was found in 12L: 12D and 8L: 16D condition but did not have any effect in other photoperiod cycles. Overall, from the present study it can be concluded that growth of the larvae is found to be higher in higher light intensity (900lx) and longer photoperiodic cycles (24L: 0D and 16L: 8D), however, better survival was recorded in total dark conditions suggesting that continuous dark condition is recommended for better hatchery performance of the larvae.

Effects of salinity on embryonic development, survival, and growth of Crassostrea hongkongensis

2014 ◽  
Vol 13 (4) ◽  
pp. 666-670 ◽  
Author(s):  
Zhongming Huo ◽  
Zhaoping Wang ◽  
Jian Liang ◽  
Yuehuan Zhang ◽  
Jianping Shen ◽  
...  
Keyword(s):  
Embryonic Development ◽  
Crassostrea Hongkongensis ◽  
Survival And Growth

scholarly journals SURVIVAL AND GROWTH OF MILKFISH (Chanos chanos) LARVAE UNDER DIFFERENT COLOUR VALUES OF ORANGE

2017 ◽  
Vol 3 (1) ◽  
pp. 8
Author(s):  
Taufik Ahmad ◽  
Titiek Aslianti
Keyword(s):  
Light Intensity ◽  
Chanos Chanos ◽  
Survival And Growth

An orange painted tank was proved to be suitable for rearing milkfish larvae, However, light intensity was suspected to affect the suitability such tanks.

Effect of light intensity on embryonic development of the cuttlefish Sepia lycidas

2019 ◽  
Vol 27 (3) ◽  
pp. 807-816
Author(s):  
Ruibing Peng ◽  
Xia-Min Jiang ◽  
Maowang Jiang ◽  
Sihan Chen
Keyword(s):  
Light Intensity ◽  
Embryonic Development ◽  
Effect Of Light
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