Effects of salinity and temperature on the growth and survival of New Zealand shortfin,<i>Anguilla australis</i>, and longfin,<i>A. dieffenbachii</i>, glass eels

Kearney, Michael R.; Jeffs, Andrew G.; Lee, Peter

doi:10.1111/j.1365-2109.2008.02053.x

Cited by 10 publications

(6 citation statements)

References 35 publications

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“…The best and significant value (p < 0.050) recorded for survival rate was at 12 g/L (95.5 ± 3.1%) salinity, while that for weight gain was at 6 g/L (10.8 ± 4.3 g) and 12 g/L (10.4 ± 2.2 g) salinities. These findings support other studies that have found that fish do better in brackish water than in sea water or freshwater (Vonck et al, 1998;Imsland et al, 2001;Rubio et al, 2005;Resley et al, 2006;Arjona et al, 2009;Imsland et al, 2008;Kang'ombe & Brown, 2008;Kearney et al, 2008;Luz et al, 2008;Overton et al, 2008;Mylonas et al, 2009). Some of these reports have indicated that raising the level of salinity in freshwater increases the growth rate and survival of tilapia.…”

Section: Discussionsupporting

confidence: 90%

Metabolic cost of acute and chronic exposure of Nile tilapia (Oreochromis niloticus) to different levels of salinity

et al. 2021

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Tilapias are a prominent aquaculture fish species, placing second only to carps in terms of the world's fish production (FAO, 2018).According to FAO (2018), their production is predicted to increase from 58% in 2016 to about 62% in 2030, and is expected to surpass that of carp by the year 2025 (Ahmadi et al., 2016). This is because of their resilience to varied stress conditions and their characteristic fast growth rate, which make them a preferred aquaculture species in most places of the world, including Central America, Asia and Africa (Nitzan et al., 2017).Many species of tilapia are broadly euryhaline (Chervinski, 1961), while other species exhibit preference for fresh or lower salinity waters. The ability of these organisms to acclimate to various salinity conditions results in some corresponding changes in their osmoregulatory processes in order to ensure that maintenance of the internal

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Section: Discussionsupporting

confidence: 90%

Metabolic cost of acute and chronic exposure of Nile tilapia (Oreochromis niloticus) to different levels of salinity

et al. 2021

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“…Many authors found that fishes grew better in brackish water than fresh water and sea water (or salt water) (Vonck et al, 1998;Imsland et al, 2001;Rubio et al, 2005;Resley et al, 2006;Arjona et al, 2009;Imsland et al, 2008;Kangombe and Brown, 2008;Kearney et al, 2008;Luz et al, 2008;Overton et al, 2008;Mylonas et al, 2009). Two earlier studies showed that fishes growth rate was higher in fresh water than salt water (Wang et al, 1997;Altinok and Grizzle, 2001).…”

Section: Discussionmentioning

confidence: 99%

“…Turbot (Scophthalmus maximus) grew well at 18.5 ppt and 21.8°C (Imsland et al, 2001). Shortfin glass eels (Anguilla australis) were reared well at 17.5 ppt and 17.5 °C or 0 to 17.5 ppt and 26.5°C (Kearney et al, 2008). Eurasian perch (Perca fluviatilis) showed optimum of growth rate at 0 to 8 ppt salinities (Overton et al, 2008).…”

Section: Discussionmentioning

confidence: 99%

Effects of salinity on growth and metabolism in blue tilapia (Oreochromis aureus)

Küçük¹,

Karul²,

Yıldırım³

et al. 2013

Afr. J. Biotechnol.

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Tilapia were acclimated to the water source which had 8 precipitation (ppt) of salinity in the experimental unit before the experiment started and then, they were transfered to five different saltwater (SW) treatments: SW (8 ppt), 50% SW (12 ppt), 100% SW (16 ppt), 150% SW (20 ppt), and 200% SW (24 ppt). The objectives of this study were; to investigate the effects of five different salinities on specific growth rate (SGR), weight gain (WG), food intake (FI) and survival of tilapia in the long term trial (30 days) and find out how salinity affects muscle water content, hematosomatic index (HSI), and blood chemistry (sodium, chloride, potassium, glucose, total protein and triglycerides) in the short term trial (6 to 12 h). In the long-term trial, six fish were stocked in each aquarium. They were fed with commercial feed (Bagcı trout) to satiation twice a day and individually weighed at ten-days interval. Growth rate was highest in the 50% SW (SGR 0.95 ± 0.18% per day); there was no significant difference among the first three treatments. Growth rate was lowest in 200% SW (SGR 0.23 ± 0.08% per day). Weight gain and food intake showed identical results as SGR. Survival was high in the first three groups (72.2 ±1 9.2 to 100.0 ± 0.0) but it was lowest in the 200% SW treatment (22.2±19.2%). In the short-term trial, six tilapia were placed per aquarium. They were exposed to SW, 50, 100, 150 and 200% SW treatments and the fish were gradually acclimated to salt water. Blood samples were taken to analyse plasma sodium, chloride, potassium, total protein and triglycerides. Liver and muscle samples were collected for HSI and moisture values. Plasma sodium chloride increased in parallel with salinity rise. Total protein and triglycerides significantly reduced as salinity increased. Glucose and potassium were not altered significantly. HSI and muscle water content decreased when salinity concentration was elevated. Blood chemistry demonstrated that isosmotic water concentration was between 8 and 12 ppt. Salinity did not affect HSI and moisture until it reached as much as 16 ppt (100% SW). The results show that the optimum condition for farming blue tilapia, Oreochromis aureus, both with respect to growth rate and metabolic parameters is at salinities lower than 12 ppt. This is an important finding for the tilapia industry.

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“…There are various studies on the effects of these factors on growth (Clarke et al, 1981;Wang et al, 1997;Swanson, 1998;Altinok and Grizzle, 2001;Imsland et al, 2001;Moustakas et al, 2004;Wuenschel et al, 2004;Engstrom-Ost et al, 2005;Resley et al, 2006;Imsland et al, 2008;Kangombe and Brown, 2008;Kearney et al, 2008;Luz et al, 2008;Overton et al, 2008;Arjona et al, 2009). Nowadays, it is known that salinity affects fish growth rate but how it influences it is not totally understood.…”

Section: Introductionmentioning

confidence: 99%

The effects of salinity on growth of goldfish, Carassius auratus and crucian carp, Carassius carassius

Küçük¹

2013

Afr. J. Biotechnol.

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The effects of four different salinities (SW, 50% SW, 100% SW and 150% SW) on specific growth rate, weight gain, food intake and survival of goldfish and crucian carp were investigated for 20 days. Both species were respectively adapted to water source, which has salinity of 8 ppt in the experimental unit for one month and then transferred to SW (8 ppt), 50% SW (12 ppt), 100% SW (16 ppt) and 150% SW (20 ppt) experimental treatments. Four goldfish fish and three crucian carp fish were placed in each aquarium. They were fed with commercial feed (Tetra Pond) to satiation twice a day and individually weighed at weekly interval. The final weight of the goldfish reared in the SW (938 ± 486 mg) and 50% SW (723 ± 269 mg) was significantly larger than that of fish reared in the 100% SW (475 ± 114 mg) and 150% SW (106 ± 318 mg). The specific growth rate was the highest in the SW (SGR: 0.53 ± 0.270% day-1) and the lowest in the 150% SW (SGR: 0.06 ± 0.195% day-1). Food intake was higher in the first three treatment groups (10.33 ± 0.572; 10.86 ± 0.917; 10.17 ± 0.767 g, respectively) than in the 150% SW (7.75 ± 1.612 g). Survival was not significantly different in the four salinity treatments (81.20 ± 23.94 ton 100.00 ± 0.00%). The final weight of the crucian carp breeding in the SW (860 ± 220 mg) and 50% SW (848 ± 394 mg) were significantly higher than the other two treatment groups. It was the worst in the 150% SW (-15 ± 903 mg). Specific growth rate was higher in the SW (SGR: 0.22 ± 0.040% day-1) and 50% SW (SGR: 0.30 ± 0.103% day-1) than the other two treatment groups. It was the lowest in the 150% SW (-0.06 ± 0.300% day-1). Food intake was higher in the first three treatment groups (8.70 ± 1.352; 7.25 ± 0.540; 7.06 ± 0.647 g, respectively) than in the 150% SW (5.60 ± 1.875 g). Survival was significantly influenced in the 150% SW (83.33 ± 19.24%). In conclusion, both species can be transferred to brackish water having not more than 8 ppt salinity. The maximum salinity tolerances of goldfish and crucian carp were 20 ppt. These findings are important in aquarium fish industry.

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Effects of salinity and temperature on the growth and survival of New Zealand shortfin,Anguilla australis, and longfin,A. dieffenbachii, glass eels

Cited by 10 publications

References 35 publications

Metabolic cost of acute and chronic exposure of Nile tilapia (Oreochromis niloticus) to different levels of salinity

Metabolic cost of acute and chronic exposure of Nile tilapia (Oreochromis niloticus) to different levels of salinity

Effects of salinity on growth and metabolism in blue tilapia (Oreochromis aureus)

The effects of salinity on growth of goldfish, Carassius auratus and crucian carp, Carassius carassius

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