The effect of salinity on growth rate, survival and swimbladder inflation in gilthead seabream, Sparus aurata, larvae

Tandler, A.; Anav, F. A.; Choshniak, I.

doi:10.1016/0044-8486(95)01029-7

Cited by 97 publications

(54 citation statements)

References 30 publications

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“…Like growth and survival, the effect of salinity on swimbladder inflation is species-specific, with some species, including gilthead seabream and European seabass, experiencing improved swimbladder inflation at salinities less than seawater (Tandler et al, 1995). Barramundi, on the other hand, appear similar to species such as Australian bass (Battaglene and Talbot, 1993) and snapper (Fielder et al, 2005) whose rate of swimbladder inflation is as high at 15‰ as it is in full-strength seawater.…”

Section: Resultsmentioning

confidence: 96%

“…Many, including gilthead seabream (Sparus aurata.) (Tandler et al, 1995), European seabass (Dicentrarchus labrax) (Johnson and Katavic, 1986), and spotted halibut (Verasper variegatus) (Wada et al, 2004) grow faster in such salinities, whereas others including snapper (Fielder et al, 2005), southern flounder, (Paralichthys lethostigma) (Moustakas et al, 2004) and black sea bass (Centropristis striata) (Berlinsky et al, 2004) grow either at the same rate or more slowly.…”

Section: Resultsmentioning

confidence: 99%

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Larval rearing of barramundi (Lates calcarifer) in saline groundwater

2008

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Barramundi (Lates calcarifer) larvae were reared from 2 to 25 days post hatch in 14‰ saline groundwater with either no potassium supplementation (38% K-equivalence) or full potassium supplementation (100% K-equivalence). Growth, survival and swimbladder inflation of these larvae were compared against those grown in control treatments of seawater (32‰) and seawater diluted to 14‰. Those reared in saline groundwater with 38% K-equivalence exhibited complete mortality within 2 days, while those held in groundwater with full supplementation survived at a rate equal to both control treatments (pooled average 51.1 ± 0.5%). At 25 days post hatch, there was no significant difference in larval length or dry weight between those grown in the 14‰ control treatment and those in the saline groundwater with full potassium supplementation. There were no significant differences in swim bladder inflation between any of the surviving treatments (average 93.3 ± 2.5%). This is the first description of rearing barramundi larvae both in low salinity seawater and in saline groundwater and demonstrates that the requirement for potassium by larval barramundi is higher than for juveniles of the same species.

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Section: Resultsmentioning

confidence: 96%

Section: Resultsmentioning

confidence: 99%

Larval rearing of barramundi (Lates calcarifer) in saline groundwater

2008

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“…Measurements of body length are taken with a slide calliper or with microscopes that may be directly connected to a computer yielding very accurate results (Karakatsouli et al, 2010;Kupren et al, 2011). Dry body weight is determined with one of several precisely described methods (Tandler et al, 1995;Steinarsson and Bjornsson, 1999;Fielder et al, 2005;Villalta et al, 2005;Cañavate et al, 2006;Wocher et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

Procedure for Harmless Estimation of Fish Larvae Weight

Krejszeff

Żarski

Palińska‐Żarska

et al. 2013

Italian Journal of Animal Science

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The aim of this study was to evaluate a procedure of weighing live fish larvae and to determine its impact on the survival and growth rates based on the example of ide Leuciscus idus (L.). A 14-day rearing was conducted. Larvae were randomly divided into two groups -control (C) and experimental (E). During the experiment, 10% of larvae from the E group were sampled and weighed (with experimental method) daily. An integral part of weighing method was to place the anaesthetized larvae onto a nylon net platform. The platform with larvae was then dried on the blotting paper and next weighed together with larvae. The weight of the larvae was calculated by deducting the weight of the platform from the total weight recorded. After weighing, the fish were returned to the rearing tank. Fish from the control group were not manipulated during the whole experiment. At the end of the experiment 90 randomly chosen fish from each group were measured and weighted. No significant differences were recorded in larvae survival, weight and length (91.33±4.73%; 41.69±10.70 mg; 17.56±1.44 mm and 94.00±4.00%; 49.40±10.79 mg; 18.41±1.24 mm in E group and C group, respectively). Significant differences were recorded in case of SGR that reached 15.80±0.29 in C group and 14.60±0.17 in E group. The described method may be a useful tool for determining fish larvae weight. Although it requires conducting further researches in order to establish the influence of accompanying factors such as e.g. kind and concentration of anaesthetic.

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“…The highest survival rates were reached at 17.5‰. The effects of different saline conditions on larvae of Sparus aurata was studied by Tandler et al (1995). The survival was 3.5 times higher at 25‰ than at 40‰.…”

Section: Effects Of Salinitymentioning

confidence: 99%

“…Fry exposed to different salinities had higher Body Weight (BW) between 0‰ and 2‰. The effect of high and low saline conditions on larvae of Sparus aurata was studied by Tandler et al (1995). BW was 16% higher at 25‰ than at 32.5‰.…”

Section: Effects Of Salinitymentioning

confidence: 99%

Study of requirements and design of sensors for monitoring water quality and feeding process in fish farms and other environments

Boronat¹

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There are many efforts done in the aquaculture to reach its sustainability, although in reality, it is far from being sustainable. Its negative impacts on the environment can be prevented and corrected by the use of sensors, developing precision aquaculture. The water quality affects to the fish performance. The temperature and salinity are some factors that affect to the fish growth. Nevertheless, other factors such as turbidity, photoperiod and dissolved oxygen among other can affect to the fish feeding needs. To adjust the amount of feed needed is crucial to ensure the sustainability of the aquaculture and to increase the economic profit of the facilities. Monitoring the water quality allows estimating the feed needs. However, it is not enough. To monitor the fish behavior, especially during the feeding period can help to adapt the provided feed. Then, if it is so clear that the monitoring can help to the aquaculture production, why we do not see this monitoring systems in the aquaculture facilities? Why in most of the facilities the feed is given manually without considering the fish feeding behavior?Nevertheless, the current price of the sensors for monitoring the fish farms is extremely high. The employed sensors are in most of the cases, the same that are used for oceanography. The proposed systems in the literature only cover some water quality parameters and usually do not consider fish feeding behavior. It is need low-cost sensors suitable for aquaculture monitoring. Those sensors must also be low-energy consumption, easy to use and with the option to include them in a network in order to send the data. Thus, we can use these sensors and sensors network to monitor the activity, to send alarms if it is necessary and to automatize processes. Moreover, including Internet, the data can be seen remotely. The use of those sensors can help to the aquaculture production.In this thesis, we show the study of requirements and design of sensors for monitoring water quality and feeding process in fish farms and other environments. First, we study in detail the requirements of sensors in aquaculture. Then, we show the state of the art of the current sensors for water quality monitoring and for aquaculture monitoring.Following, we present the design and development of some low-cost sensors and their applications in fish farm facilities with open system and recirculating system. Moreover we show a complete system which monitors up to 10 parameters including water quality (temperature, salinity, turbidity and presence of hydrocarbon/oil layer), tank environment (water level, illumination, presence of workers), and fish feeding behavior (shoal swimming depth, estimation of changes on shoal swimming velocity and feed falling). Moreover, it accomplishes the features of low-cost and low energy consumption. The estimated price for proposed system is less than 100€ per tank. In addition, we show the use of some of the aforementioned sensors for automatic adjustment of fish feeding process.Finally, some of the develop...

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The effect of salinity on growth rate, survival and swimbladder inflation in gilthead seabream, Sparus aurata, larvae

Cited by 97 publications

References 30 publications

Larval rearing of barramundi (Lates calcarifer) in saline groundwater

Larval rearing of barramundi (Lates calcarifer) in saline groundwater

Procedure for Harmless Estimation of Fish Larvae Weight

Study of requirements and design of sensors for monitoring water quality and feeding process in fish farms and other environments

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