Effects of salinity and nutritional status on growth and metabolism of Spams sarba in a closed seawater system

Woo, Norman Y.S.; Kelly, Scott P.

doi:10.1016/0044-8486(95)01003-3

Cited by 167 publications

(126 citation statements)

References 24 publications

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“…Therefore, energy supply during acclimation to environmental salinity can be fulfilled by other metabolic substrates than carbohydrates, such as proteins and lipids (Tseng & Hwang, 2008). Effectively, Woo & Kelly (1995) reported that the growth improvement observed in Sparus sarba (Forsskål) at the isosmotic salinity could be assigned to either a reduction in metabolism when fish is maintained under an isosmotic condition or a metabolic reorganization in order to prioritize the use of carbohydrates and lipids while proteins are spared and used for growth.…”

Section: Discussionmentioning

confidence: 99%

Effect of salinity on survival, growth and biochemical parameters in juvenile Lebranch mullet Mugil liza (Perciformes: Mugilidae)

et al. 2015

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Teleost fish growth may be improved under isosmotic condition. Growth and metabolic performance of juvenile Mugil liza (isosmotic point: 12‰) were evaluated after 40 days in different salinities (0, 6, 12 and 24‰). Tests were performed in quadruplicate (30 fish/tank; 0.48 ± 0.1 g body weight; 3.27 ± 0.1 cm total length) under controlled water temperature (28.2 ± 0.1°C) and oxygen content (>90% saturation). Fish were fed on artificial diet (50% crude protein) four times a day until apparent satiation. Results showed that salinity influenced juvenile mullet growth. Fish reared at salinity 24‰ grew better than those maintained in freshwater (salinity 0‰). Gill Na + ,K + -ATPase activity and whole body oxygen consumption showed an U-shape-type response over the range of salinities tested, with the lower values being observed at the intermediate salinities. Although no significant difference was observed in liver glycogen content at different salinities, it tended to augment with increasing salinity. These findings indicate that energy demand for osmorregulation in juvenile M. liza can be minimized under isosmotic condition. However, the amount of energy spared is not enough to improve fish growth. Results also suggest that M. liza is able to alternate between different energy-rich substrates during acclimation to environmental salinity.O crescimento de peixes teleósteos pode ser melhorado em condição isosmótica. O crescimento e o desempenho metabólico de juvenis da tainha Mugil liza (ponto isosmótico: salinidade de 12‰) foram avaliados após 40 dias de cultivo em diferentes salinidades (0, 6, 12 e 24‰). Os testes foram realizados em 4 réplicas (30 peixes/tanque; 0,48 ± 0,1 g de peso corporal; 3,27 ± 0,1 cm de comprimento total) em condições controladas de temperatura (28,2 ± 0,1°C) e conteúdo de oxigênio (>90% saturação). Os peixes foram alimentados quatro vezes ao dia com dieta artificial (50% de proteína bruta) até a saciedade aparente. Os resultados mostraram que a salinidade influenciou o crescimento dos juvenis da tainha. Os peixes cultivados na salinidade 24‰ cresceram melhor que aqueles mantidos na água doce (salinidade 0‰). A atividade da Na + ,K + -ATPase branquial e o consumo corporal de oxigênio mostraram uma resposta do tipo em forma de U, na faixa de salinidade testada, com os menores valores sendo observados nas salinidades intermediárias. Apesar de não ter sido observada diferença significativa no conteúdo de glicogênio entre os peixes mantidos nas diferentes salinidades, este parâmetro tendeu a aumentar com o incremento da salinidade. Estes achados indicam que a demanda energética para osmorregulação em juvenis de M. liza podem ser minimizados em condição isosmótica. Entretanto, a quantidade de energia poupada não é suficiente para melhorar o crescimento. Os resultados também sugerem que M. liza é capaz de alternar entre diferentes substratos ricos em energia durante a aclimatação à salinidade da água.

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Section: Discussionmentioning

confidence: 99%

Effect of salinity on survival, growth and biochemical parameters in juvenile Lebranch mullet Mugil liza (Perciformes: Mugilidae)

et al. 2015

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“…Fish were allowed to acclimate to laboratory conditions in seawater stock tanks for 2 wk prior to experimentation. Fish were separated into experimental tanks (500 l) equipped with a seawater recirculation and fed on a prepared diet (Woo & Kelly 1995). The temperature of the experimental tanks was maintained at 20 to 22°C throughout the experimental period.…”

Section: Methodsmentioning

confidence: 99%

Modulated heat shock protein expression during pathogenic Vibrio alginolyticus stress of sea bream

Deane

Li²,

Woo³

2004

Dis. Aquat. Org.

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The effects of infective Vibrio alginolyticus and its extracellular product (ECP) on host fish function are not well understood. In this study a partial biochemical characterization of the ECP from an infective strain of V. alginolyticus isolated from diseased silver sea bream Sparus sarba was achieved and the effects of live V. alginolyticus and ECP on hepatic heat shock protein (hsp) expression was compared. The ECP fraction was found to contain several hydrolytic enzymes including both haemolytic and proteolytic activities. Intramuscular administration of ECP to sea bream resulted in vibriosis with similar pathological signs as those observed with live V. alginolyticus administration. Using quantitative immunoassays we assessed the levels of the major hsp families, hsp90, hsp70 and hsp60, in hepatic tissue of diseased sea bream between 12 and 48 h post-infection. Throughout the infective period, live V. alginolyticus did not alter hsp90 whereas ECP significantly reduced hepatic hsp90 during the late stages of acute infection. The levels of hsp70 were found to be rapidly and drastically increased with both live V. alginolyticus and ECP. The transcript levels of both gene members of the hsp70 family (hsc70 and hsp70) were significantly increased with both live V. alginolyticus and ECP. The levels of hsp60 remained unchanged with both live V. alginolyticus and ECP. The data presented in this study is the first report describing an effect of both live V. alginolytus and ECP on hsp expression in diseased fish.KEY WORDS: Fish · Disease · Vibrio · Heat shock protein · hsp90 · hsp70 · hsp60 Resale or republication not permitted without written consent of the publisherDis Aquat Org 62: [205][206][207][208][209][210][211][212][213][214][215] 2004 When normal cellular processes are adversely affected the synthesis of a group of proteins belonging to the heat shock protein (hsp) families (hsp90, hsp70 and hsp60) are rapidly increased. Members of these different hsp families play different roles in the cell; for example, the hsp90 family is involved in steroid receptor formation and protein folding (Smith & Toft 1993, Pratt 1997, the hsp70 family is necessary for protein synthesis, translocation and protein folding (Gething & Sambrook 1992), and mitochon-drial bound hsp60 is defined as being involved in protein stability and folding (Cheng et al. 1989, Ostermann et al. 1989, Martin et al. 1992. Indeed all of these groups of hsps have been demonstrated to be upregulated in fish during abiotic stress (Iwama et al. 1998). Evidence from mammalian studies has suggested that hsps are important during disease as they may play critical roles in immune function and protection (Jacquier-Sarlin et al. 1994), antigen presentation (DeNagel & Pierce 1993) and non-specific immune responses (Guzik et al. 1999). Although strong evidence exists for an important role of hsps in disease responses for mammals, much less is known about pathogenic stress and its effect on hsp90, 70 and 60 expression in fish. A better understanding...

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“…The energetic cost of ionic and osmotic regulations seems to play a significant role in growth rates (Boeuf and Payan, 2001). Some studies support the idea of growth enhancement arising from reduced metabolic cost for osmoregulation (Febry and Lutz, 1987;Woo and Kelly, 1995). De Silva and Perera (1976) suggested higher energy/protein requirement in high salinities, an effect that possibly reflects an elevated metabolic cost of osmoregulation in such salinities (Johnson and Katavic, 1986).…”

Section: Introductionmentioning

confidence: 92%

“…Respiratory responses at different salinities seem to differ widely among teleost species. Low oxygen consumption rates were obtained at the isosmotic salinity with the nile tilapia Oreochromis niloticus acclimated to various salinities (Farmer and Beamish, 1969), rainbow trout Oncorhynchus mykiss (Walbaum), (Rao, 1968), and sea bream Sparus sarba (Woo and Kelly, 1995). On the other hand, Morgan and Iwama (1991) found low oxygen consumption rates in fresh water, and the consumption increased with the increase in salinity with juvenile rainbow and steelhead trout O. mykiss and fall chinook salmon O. tshawytscha.…”

Section: Introductionmentioning

confidence: 98%

Effect of salinity on the oxygen consumption of larvae of the silversides Odontesthes hatcheri and O. bonariensis (Osteichthyes, Atherinopsidae)

Tsuzuki¹,

Strüssmann

Takashima

2008

Braz. arch. biol. technol.

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Effects of salinity and nutritional status on growth and metabolism of Spams sarba in a closed seawater system

Cited by 167 publications

References 24 publications

Effect of salinity on survival, growth and biochemical parameters in juvenile Lebranch mullet Mugil liza (Perciformes: Mugilidae)

Effect of salinity on survival, growth and biochemical parameters in juvenile Lebranch mullet Mugil liza (Perciformes: Mugilidae)

Modulated heat shock protein expression during pathogenic Vibrio alginolyticus stress of sea bream

Effect of salinity on the oxygen consumption of larvae of the silversides Odontesthes hatcheri and O. bonariensis (Osteichthyes, Atherinopsidae)

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