Salinity Adaptability and Tolerance of Hatchery Reared Comet Goldfish Carassius auratus (Linnaeus 1758)

Lawson, E. O.; Alake, S. A.

doi:10.3923/ijzr.2011.68.76

Cited by 10 publications

(9 citation statements)

References 3 publications

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“…Hart et al [64] suggested that freshwater fish can tolerate salinities of up to 10,000 mg/L (14,705 µS/cm). Other studies examined the salinity tolerances of various fish species, including yellow perch (Perca flavescens) [65], goldfish (C. auratus) [66] and carp (Cyprinus carpio) [67]. These studies were conducted under laboratory conditions and have not been compared with field data.…”

Section: Discussionmentioning

confidence: 99%

Threshold Responses in the Taxonomic and Functional Structure of Fish Assemblages to Land Use and Water Quality: A Case Study from the Taizi River

Zhang

Wang

Ding

et al. 2019

Water

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Biological functional traits help to understand specific stressors that are ignored intaxonomic data analysis. A combination of biological functional traits and taxonomic data ishelpful in determining specific stressors which are of significance for fish conservation and riverbasin management. In the current study, the Taizi River was used as a case study to understand therelationships between the taxonomic and functional structure of fish and land use and waterquality, in addition to determining the thresholds of these stressors. The results showed thattaxonomic structure was significantly affected by the proportion of urban land and specificconductivity levels, while functional metrics were influenced by the proportions of farmland andforest. Threshold indicator taxa analysis found that Phoxinus lagowskii, Barbatula barbatula nuda,Odontobutis obscura, and Cobitis granoei had negative threshold responses along the gradients ofurban developments and specific conductivity. There was a significant change in fish taxonomiccomposition when the proportion of urban land exceeded a threshold of 2.6–3.1%, or specificconductivity exceeded a threshold of 369.5–484.5 μS/cm. Three functional features—habitatpreference, tolerance to disturbances, and spawning traits—showed threshold responses to theproportion of farmland and forest. The abundance of sensitive species should be monitored as partof watershed management, as sensitive species exhibit an earlier and stronger response to stressorsthan other functional metrics. Sensitive species had a positive threshold response to the proportionof forest at 80.1%. These species exhibited a negative threshold response to the proportion offarmland at 13.3%. The results of the current study suggest that the taxonomic and functionalstructure of fish assemblages are affected by land use and water quality. These parameters shouldbe integrated into routine monitoring for fish conservation and river basin management in the TaiziRiver. In addition, corresponding measures for improving river habitat and water quality shouldbe implemented according to the thresholds of these parameters.

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Section: Discussionmentioning

confidence: 99%

Threshold Responses in the Taxonomic and Functional Structure of Fish Assemblages to Land Use and Water Quality: A Case Study from the Taizi River

Zhang

Wang

Ding

et al. 2019

Water

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show abstract

“…Also, erratic swimming behaviour might be because of the inability of fish to cope with sudden changes in their environmental condition occurred by the sudden increase in salinity. The fish's ability to maintain regular swimming indicated that their tolerance level was not exceeded (Lawson & Alake, 2011). Similar behavioural observations were stated by (Benli & Özkul, 2010; Lawson & Anetekhai, 2011).…”

Section: Discussionmentioning

confidence: 99%

Insight study on the impact of different salinity levels on behavioural responses, biochemical stress parameters and growth performance of African catfish ( Clarias gariepinus )

Zidan

Goma

Tohamy

et al. 2022

Aquaculture Research

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The limit of tolerance to salinity in freshwater fish has become an important environmental factor influencing growth performance. Therefore, this study aimed to explore the impact of different levels of salinity on behavioural responses, growth performance, haematological, oxidative and biochemical stress parameters, in addition to immune parameters of African catfish. Three‐hundred and Sixty juvenile African catfish were randomly distributed into six groups and exposed to different salinity levels (0, 4, 8, 12, 16 and 20 ppt) with three replicate tanks per treatment group; each tank contained 20 individuals for 42 days. Behavioural responses of fish were monitored during the experimental period. Growth performance, haematological, oxidative and biochemical stress parameters, in addition to immune parameters and osmotic pressure, were also determined at the end of the treatment period. Results revealed that the proportion of fish performing abnormal stress behavioural responses increased directly to the salinity level. In contrast, the survival rate and growth performance were decreased with high feed conversion at the higher salinities. Inconsistent, the haematological, oxidative, biochemical, immune and osmotic pressure parameters were altered gradually with the increase in the salinity level. Therefore, salinity level could influence the African catfish's behaviour, survival and growth when they exceed the tolerance limit.

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“…Most inhabitant freshwater fish are categorized as stenohaline fish as they cannot tolerate high salinity and witness enormous mortalities when salinity crosses the tolerable boundaries (100). However, several studies confirmed the potentiality of solving this issue and enhancing salinity acclimatization of fish via using salt feeding technique that refers to incorporating certain salt amounts in the food of those fish (101), given that local fish general exposure to high salinity in their natural environment is not confined to specified age, but all age groups from egg to adult.…”

Section: Salinitymentioning

confidence: 99%

Re Extrapolation For The Iraq Marshes Which Falling Within The World Heritage List (A Literature Review)

Zaidy¹,

Parisi²

2018

QJAS

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The Mesopotamian Marshlands or The Garden of Eden, lies in the southern part of Iraq with estimated area of 15000-20000 km 2 . Historically, the area had pioneering role in the human civilization for over 5000 years. The indigenous people of the area are called -Marsh Arabs‖ or -Ma'dan‖ who are the descendants of the Sumerians and Semitic people. The former Iraqi regime (Saddam Hussein) had violently led an aggressive campaign to drain the marshes in 1991. Only %7 of the total area survived this campaign, which caused a mass destruction of the ecosystem and dwellers' displacement. In 2003, water started to flow back to the area. Yet, the reflooding did not restore the whole former area of the wetlands. Moreover, the new ecosystem influenced the diversity and characteristics of the co-existing species in the area. In 2016, due to the importance of the Mesopotamian Marshlands, the International Union for Conservation of Nature (IUCN) listed three marshes from the area as World Heritage Sites requiring conservation, namely: Hammar, Hwezeh and Central Marshes. The aim of this study is to re-evaluate the ecosystem of those three sites from a biological perspective by examining some challenges that should be dealt with to restore stability to this multi-thousand-yearold system.

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Salinity Adaptability and Tolerance of Hatchery Reared Comet Goldfish Carassius auratus (Linnaeus 1758)

Cited by 10 publications

References 3 publications

Threshold Responses in the Taxonomic and Functional Structure of Fish Assemblages to Land Use and Water Quality: A Case Study from the Taizi River

Threshold Responses in the Taxonomic and Functional Structure of Fish Assemblages to Land Use and Water Quality: A Case Study from the Taizi River

Insight study on the impact of different salinity levels on behavioural responses, biochemical stress parameters and growth performance of African catfish ( Clarias gariepinus )

Re Extrapolation For The Iraq Marshes Which Falling Within The World Heritage List (A Literature Review)

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