Influence of salinity on embryogenesis, survival, growth and oxygen consumption in embryos and yolk-sac larvae of the Nile tilapia

Fridman, Sophie; Bron, James E.; Rana, K.J.

doi:10.1016/j.aquaculture.2011.12.034

Cited by 41 publications

(43 citation statements)

References 50 publications

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“…In euryhaline fish, osmoregulatory patterns (OP) and osmoregulatory capacity (OC) during ontogeny (embryonic, larval development, juvenile and adult stages) are not equal, because the OP and OC depend on the use of different mechanisms to respond to salinity changes (Varsamos, Nebel & Charmantier ; Yang & Chen ; Bodinier, Sucré, Lecurieux‐Belfond, Blondeau‐Bidet & Charmantier ; Fridman, Bron & Rana ,b).…”

Section: Introductionmentioning

confidence: 99%

Effects of salinity on osmoregulation during the embryonic development of the bullseye puffer (Sphoeroides annulatusJenyns 1842)

Pérez‐Robles¹,

Dı́az²,

Ibarra‐Castro

et al. 2014

Aquac Res

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To evaluate the effect of salinity on the hatching rate, hatching time, survival percentage, osmoregulation pattern and the incidence of abnormalities in newly hatched larvae, embryos of Sphoeroides annulatus (Jenyns 1842) were exposed to 5, 12, 19, 26, 33, 35 and 40 psu. The hatching percentage (HP), survival percentage (PS), normal larvae (PN), deformed larvae (PD) and hatching time (HT) were significantly affected by salinity (P < 0.05). The embryos exposure to 5 psu caused that HP, PS, and PN had lower values (2.6 ± 0.32, 7.78 ± 0.88 and 70.37 ± 7.75% respectively), PD and HT had the highest values 26.67 ± 7.54% and 55.53 ± 0.59 h respectively. However, the survival of newly hatched larvae was not possible in 5 ups, though it was in 40 ups. Osmotic pressure (OP) remained constant in each salinity, whereas isosmotic points changed from 435.5 mOsm kg−1 in 21 h post fertilization to 342.8 mOsm kg−1 at 47 h post fertilization, obtaining a pattern of hyper‐osmoregulation at lower salinities and hypo‐osmoregulation in higher salinities. This study is the first carried out on embryos of this species; therefore, the obtained information is essential to improve strategies and growing conditions in their initial development.

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Section: Introductionmentioning

confidence: 99%

Effects of salinity on osmoregulation during the embryonic development of the bullseye puffer (Sphoeroides annulatusJenyns 1842)

Pérez‐Robles¹,

Dı́az²,

Ibarra‐Castro

et al. 2014

Aquac Res

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“…In this way, silver catfish presents sperm activation only in hyposmotic solutions in relation to seminal plasma, similar to most freshwater teleosts. The same was demonstrated for catfish Clarias batrachus (MORITA et al, 2006) and northern pike Esox lucius (ALAVI et al, 2009), where sperm motility Previous studies with silver catfish demonstrated that pH does not influence activation capacity and sperm motility time (FERREIRA et al, 2001). Therefore, increases in osmolality, in values below the isosmotic point of seminal plasma, could be the main responsible factor for sperm activation.…”

Section: Resultsmentioning

confidence: 61%

“…Studies demonstrated, for African catfish Heterobranchus longifilisi (FASHINA-BOMBATA & BUSARI, 2003) and Nile tilapia Oreochromis niloticus (FRIDMAN et al, 2012), that low salt concentrations have positive effect on egg hatching.…”

Section: Introductionmentioning

confidence: 99%

Salinity on artificial reproduction of silver catfish (Rhamdia quelen)

et al. 2015

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“…It may affect fi sh gametes (eggs and spermatozoa), developing embryos, as well as juveniles and adults (Swanson 1996, Vetemaa and Saat 1996, Fashina-Bombata and Busari 2003, Bonisławska 2009, Fridman et al 2012, Khatooni et al 2012.…”

Section: Introductionmentioning

confidence: 99%

The effect of water salinity on the motility of spermatozoa of the brook trout, Salvelinus fontinalis (Actinopterygii: Salmoniformes: Salmonidae)

Bonisławska¹

2015

Acta Ichthyol. Piscat.

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Bonisławska M., Szulc J., Formicki K. 2015. The effect of water salinity on the motility of spermatozoa of the brook trout, Salvelinus fontinalis (Actinopterygii: Salmoniformes: Salmonidae). Acta Ichthyol. Piscat. 45 (2): 143-151.Background. Salmonid spermatozoa are characterised by a very short time of activity in the water, therefore sudden water pollution in the form of increased salinity on the spawning grounds may have a negative effect on the sperm motility parameters, thus affecting the subsequent egg fertilisation and, consequently, the number of hatched individuals of the species. The aim of this study was to determine the effect of water salinity on the motility parameters of spermatozoa of brook trout, Salvelinus fontinalis (Mitchill, 1814). Material and methods. Sperm motility was monitored with a camera (Basler A312fc) coupled with Nikon Eclipse 50i light microscope from the moment of their activation (contact with water) until the cessation of movement. The following water-salinity treatments were tested: 1.0‰, 3.0‰, 5.0‰, and 10.0‰. The motility parameters: VCL, VSL, VAP, ALH, BCF, LIN, STR, WOB, and MOT, were analysed with Computer Assisted Sperm Analysis (CASA). Results.The mean values of the studied motility parameters of the brook trout spermatozoa (obtained within 30 s), whose activation took place in the water of 0.35‰ salinity and in water of 1.0‰ and 3.0‰ salinity, did not differ signifi cantly. The highest mean values of motility parameters were recorded for the water of 5.0‰ salinity. The 10.0‰ treatment caused a distinct decrease in the values of all the studied parameters. The percentage of MOT was the highest (37.5%) in the sample activated in the water used for fi sh rearing (0.35‰). In the remaining samples the MOT was lower, and in the water of 10.0‰ salinity it was only 9.1%. No spermatozoa movement of any kind was recorded in the 35th second of the experiment. Conclusion.The values of the motility parameters as well as the percentage of motile spermatozoa (MOT) in the semen decrease with increasing salinity of the water used for activation, and with increasing time of exposure.

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Influence of salinity on embryogenesis, survival, growth and oxygen consumption in embryos and yolk-sac larvae of the Nile tilapia

Cited by 41 publications

References 50 publications

Effects of salinity on osmoregulation during the embryonic development of the bullseye puffer (Sphoeroides annulatusJenyns 1842)

Effects of salinity on osmoregulation during the embryonic development of the bullseye puffer (Sphoeroides annulatusJenyns 1842)

Salinity on artificial reproduction of silver catfish (Rhamdia quelen)

The effect of water salinity on the motility of spermatozoa of the brook trout, Salvelinus fontinalis (Actinopterygii: Salmoniformes: Salmonidae)

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