Heavy metals burden of Keenjhar Lake, District Thatta, Sindh, Pakistan

Naqvi, Syed Habib Ahmed

doi:10.5897/ajb11.1840

Cited by 8 publications

(5 citation statements)

References 22 publications

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“…The TDS (total dissolved solids) values in the epilimnion were low compared with hypolimnion, which seems to be attributed to algae and other aquatic plants consuming salt and the rate of evaporation in the epilimnion. According to Lashari et al (2009), the number of dissolved salts and temperature greatly affects the water's ability to hold dissolved oxygen, and this fact supports the assumption that the hypolimnion has higher TDS values since the hypolimnion was anoxic during stagnation.…”

Section: Resultsmentioning

confidence: 64%

Study of vertical distribution dynamics of zooplankton in a thermally stratified warm monomictic lake of Kashmir Himalaya

Yaseen

Bhat

2022

Ecohydrology

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In the present study, we investigated how stratification patterns and the related physico-chemical characteristics impact the vertical distribution of zooplankton community during the two consecutive stratifications in a warm monomictic lake (Manasbal Lake) in the Ganderbal area of Central Kashmir. Two consecutive events of stratification and deepening of thermocline recorded during the sampling period led to significant changes in the vertical distribution of zooplankton community.Physico-chemical characteristics displayed significant changes with the stratification pattern. Temperature of the surface water (0 m) increased gradually from 13 C to 29 C, resulting in a higher thermal gradient. pH and dissolved oxygen (O 2 ) displayed clinograde curves with vertical depth. Keratella cochlearis and Polyarthra vulgaris (Rotifers) were most dominant in terms of density and abundance at the thermocline and significantly decreased at the hypolimnion. Cladocera with significant difference along the vertical column showed an epilimnetic distribution with Ceriodaphnia reticulata and Ceriodaphnia quadriangularis being the major contributors. Among copepods, Cyclops viridis was recorded at all depths in greater dominance.Acanthodiaptomus denticornis (Diaptomidae) showed higher abundance from epilimnion to thermocline but decreased at hypolimnion. The results showed that the strong vertical gradient of environmental factors occurs in the Manasbal lake. Among them, dissolved oxygen, water temperature, and nutrients controlled the zooplankton community with higher aggregation above the thermocline. Therefore, the present investigation regarding the dynamic patterns of zooplankton community along the vertical gradient in a stratified lake could be important in monitoring habitats and to understand the ecology of warm monomictic lakes.

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Section: Resultsmentioning

confidence: 64%

Study of vertical distribution dynamics of zooplankton in a thermally stratified warm monomictic lake of Kashmir Himalaya

Yaseen

Bhat

2022

Ecohydrology

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“…In contrast, aerobic respiration by the different organisms requires oxygen and thus reduces pH (Hamid et al, 2020). Additionally, the pH depends upon the presence and absence of carbon dioxide, carbonates, and periphytic algal density in the water (Lashari et al, 2009).…”

Section: Factors Affecting the Macro‐invertebrate Distribution In A S...mentioning

confidence: 99%

Differential distribution of macroinvertebrate associated with water quality

2023

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Streams and rivers are the major source of drinking water and irrigation in many developing countries. Stream health is a major criterion and regulator of the health of its dependents (invertebrates, aquatic flora, fishes, animals, and humans). For the sustenance of a balanced ecosystem, a mutual existence between flora and fauna along with other abiotic factors is a prerequisite. Benthic fauna lying on the riverbed serves as a food source for fish, larger insects, birds, etc. Nowadays, most freshwater bodies are getting polluted through various anthropogenic activities like mining, land‐use practices (fertilizers and insecticides), industrial effluent, and sewage inlet. Due to the water contamination, there have been observed changes in the physicochemical parameters of the water. The macroinvertebrate species being sensitive to these changes play an important role not only in determining the health of the water body but also in regulating the ecosystem. After review, it was observed that order like Diptera dominated in various locations, comprising of family Ceratopogonidae and Chironomidae, followed by order Trichoptera and Coleoptera. Species belonging to family Baetidae and Chironomidae possess pollution tolerance capabilities; additionally, these species can survive at a wide range of temperatures. Species from families such as Simuliidae showed their existence at varying water velocities. Families like Limnephilidae, Simuliidae, and Glossosomatidae exhibited their survival in fast moving water whereas Notonectidae, Hydrophilidae Gomphidae, Coenagrionidae, Libellulidae, Aeshnidae, and Dryopidae indicated species of low waterflow. Species of the family Tipulidae have been related to areas of high conductivity, whereas Gomphidae, Dryopidae, and Glossomatidae as species of low conductivity. Hydrophilidae and Notonectidae dominated high temperature areas. The present study will put forth before the government, current scenario of macroinvertebrate structure depending on the different characteristics of the water. This will help in regulating and controlling water pollution.

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“…Metal sheeting is a prevalent construction material in around half of the buildings built with an earthen floor. Seventeen fishermen's residents live on their boats, which lack basic electrical and gas amenities, therefore, kerosene lamps are used for illumination and charcoal is mostly used for cooking [ 29 ]. Only 19 % of the fishermen possessed home furnishings such as a TV, refrigerator, stove, or iron, and therefore only 5 % had a motorcycle, according to land acquisition data.…”

Section: Review Of the Literaturementioning

confidence: 99%

Availability and access to Livelihood capital assets for development of sustainable Livelihood strategies of fishermen: A case study of Manchar Lake Pakistan

Xu,

Qayum,

Afzal

et al. 2023

Heliyon

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Heavy metals burden of Keenjhar Lake, District Thatta, Sindh, Pakistan

Cited by 8 publications

References 22 publications

Study of vertical distribution dynamics of zooplankton in a thermally stratified warm monomictic lake of Kashmir Himalaya

Study of vertical distribution dynamics of zooplankton in a thermally stratified warm monomictic lake of Kashmir Himalaya

Differential distribution of macroinvertebrate associated with water quality

Availability and access to Livelihood capital assets for development of sustainable Livelihood strategies of fishermen: A case study of Manchar Lake Pakistan

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