Salinity tolerance of Mugil cephalus and Chelon labrosus (Pisces: Mugilidae) fry in experimental conditions

Hotos, George N.; Vlahos, Nikolaos

doi:10.1016/s0044-8486(98)00314-7

Cited by 52 publications

(44 citation statements)

References 9 publications

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“…Similar studies have been conducted by Hotos andVlahos (1998), Ben-Yami (1981) and Mires et al (1974). Results of experiments showed L. aurata can tolerate abrupt salinity changes from 12 ppt to saline water up to 40 g L −1…”

Section: Discussionsupporting

confidence: 81%

“…Hotos and Vlahos (1998) conducted direct transfers of two species of Grey Mullet Chelon labrosus (Risso, 1827) and Mugil cephalus (Linnaeus, 1758) Table I. from 20 ppt to different salinities (35, 40, 45, 50, 55, 60, 65, 70, 75 and 80 ppt) and found that LC 50 24-h values were 53.1 ppt for C. labrosus and 50.4 ppt for M. cephalus respectively. In both species, mortality occurred at salinities greater than 45 ppt.…”

Section: Discussionmentioning

confidence: 99%

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Salinity tolerance and gill histopathological alterations inLiza aurataRisso, 1810 (Actinopterygii: Mugilidae) fry

Moghadam

Behrouz

Khorjestan

et al. 2013

Italian Journal of Zoology

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Gill histopathological alterations in Golden Grey Mullet, Liza aurata, fry in acute salinity exposure were studied by light and scanning electron microscopy (SEM). The Golden Grey Mullet fry was obtained from the south of the Caspian Sea and acclimated to brackish water (12 ppt). Fry (adapted in 12 ppt salinity) were transferred directly to salinities of 40, 45, 50, 55, 60, 65 and 70 ppt. Mortality occurs more rapidly over a narrow range of salinity from 45 to 60 ppt. Mortality was 100% in salinity higher than 60 ppt. Histopathological gill alterations included edema of the epithelial cells with the breakdown of pillar cells, hypertrophy and hyperplasia of epithelial and chloride cells. According to SEM observation, two types of chloride cells were identified in gill of L. aurata fry. In Type I, crypts usually had large openings and were occasionally ornamented with short microvilli, and, in Type II, crypts resembled a narrow and deep hole. The number of Type II increased following elevated salinity. lethal concentration 50 (LC 50 ) 24-, 48-, 72-and 96-h values calculated with the probit method were 50.11, 49.91, 49.91 and 49.91 ppt, respectively. This study showed that the gill was the primary target organ for the acute effects of salinity. Moreover, the type of chloride cells and gill structure is affected by acute salinity such that these alterations must be one of the reasons for death in some treatments.

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Section: Discussionsupporting

confidence: 81%

Section: Discussionmentioning

confidence: 99%

Salinity tolerance and gill histopathological alterations inLiza aurataRisso, 1810 (Actinopterygii: Mugilidae) fry

Moghadam

Behrouz

Khorjestan

et al. 2013

Italian Journal of Zoology

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“…This could be directed to fish growth, as at this salinity probably the metabolic demand is reduced by the isosmotic medium. Usually, fish are not fed in 24-96 h salinity tolerance tests (Anyanwu, 1991;Hotos & Vlahos, 1998;Estudillo et al, 2000). Duenas & Young (1983) and Estudillo et al (2000) used 48 h as the maximum time to test for tolerance without non-salinity related complications such as starvation and poor water quality in milkfish Chanos chanos and mangrove red snapper Lutjanus argentimaculatus, respectively.…”

Section: Resultsmentioning

confidence: 99%

Salinity tolerance of laboratory reared juveniles of the fat snook centropomus parallelus

et al. 2007

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A B S T R A C TThe knowledge of salinity tolerance is essential for aquaculture production in different water sources, as well as for stocking enhancement programs. In the present experiment, salinity tolerance was investigated in laboratory reared juveniles of the fat snook Centropomus parallelus. Fish of 52 days (22.0 mm ± 0.4: mean total length ± SEM), 59 days (22.6 mm ± 0.5) and 73 days (25.8 mm ± 0.5) after hatching (DAH) were directly transferred from 35 to 0, 5, 15 and 35 ppt. Survival was checked every 24 h during a 96-h period. The experiment was carried out with fed (for all salinities) and unfed individuals (except for 5 ppt). Direct transfer resulted in less than 40% mortality in all treatments and ages tested. At the same salinity level, no difference in survival rates was found between fed and unfed juveniles, at the different ages and exposure time tested. Juveniles of 52 DAH presented lower tolerance to 0 ppt compared to other salinities. In older juveniles (59 and 73 DAH), mortality after 96 h was very low (≥ 95% survival), regardless the salinity treatment or feeding condition. Therefore, the present study showed that juveniles of 52 DAH are less tolerant to abrupt transfer to freshwater, indicating that a salinity acclimation procedure prior to release in freshwater areas would be necessary, and that tolerance increased with increasing age. R E S U M OO conhecimento da tolerância à salinidade é essencial para produção em aquacultura em diferentes ambientes aquáticos, bem como para programas de repovoamento. No presente experimento, a tolerância à salinidade foi investigada em juvenis de robalo-peva Centropomus parallelus. Peixes de 52 dias (22,0 mm ± 0,4: média comprimento total ± EP), 59 dias (22,6 mm ± 0,5) e 73 dias (25,8 mm ± 0,5) após eclosão (DAE) foram diretamente transferidos de 35 para 0, 5, 15 e 35 ppt. Sobrevivência foi monitorada a cada 24 h durante um período de 96 h. O experimento foi conduzido com animais alimentados (todas as salinidades) e em inanição (exceto para 5 ppt). Transferência direta resultou em menos de 40% de mortalidade em todos os tratamentos e idades testadas. No mesmo nível salino, não foram encontradas diferenças nas taxas de sobrevivência entre juvenis alimentados e em inanição nas diferentes idades e tempos de exposição testadas. Juvenis de 52 DAE apresentaram menor tolerância a 0 ppt em comparação as demais salinidades. Em animais mais velhos (59 e 73 DAE), mortalidade após 96 h foi muito baixa (≥ 95% sobrevivência), independentemente do tratamento salino ou condição de alimentação. Portanto, o presente estudo mostrou que juvenis de 52 DAE são menos tolerantes a transferências abruptas à água doce, indicando que procedimento de aclimatação à salinidade antes da liberação em áreas dulcícolas é necessário, e que a tolerância aumenta com o aumento da idade.

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“…There was not any food to the specimens during the assay. The time of mortality rates were recorded at 24, 48, 72 and 96 h. Acute toxicity experiments carried out according to Vlahos and Hotos [9]. The nominal concentration of butachlor and pretilachlor estimated to result in 50% mortality of Culex within 24 h (24-h LC 50 ), 48 h, 72 h, and 96 h was attained by probit analysis [10], and using the maximum-likelihood procedure (SPSS 2002, SPSS Inc., Chicago, Illinois, USA).…”

Section: Methodsmentioning

confidence: 99%

Toxic Response of Mosquito Culex Quinquefasciatus (Diptera: Culicidae) to some Agricultural Pesticides (Butachlor and Pertilachlor)

Hedayati

Darabitabar

Tarkhani

2017

IJT

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Salinity tolerance of Mugil cephalus and Chelon labrosus (Pisces: Mugilidae) fry in experimental conditions

Cited by 52 publications

References 9 publications

Salinity tolerance and gill histopathological alterations inLiza aurataRisso, 1810 (Actinopterygii: Mugilidae) fry

Salinity tolerance and gill histopathological alterations inLiza aurataRisso, 1810 (Actinopterygii: Mugilidae) fry

Salinity tolerance of laboratory reared juveniles of the fat snook centropomus parallelus

Toxic Response of Mosquito Culex Quinquefasciatus (Diptera: Culicidae) to some Agricultural Pesticides (Butachlor and Pertilachlor)

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