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Jose A, Sukumaran S, Roul SK, Azeez PA, Kizhakudan SJ, Raj N, Nisha K, Gopalakrishnan A. Genetic analyses reveal panmixia in Indian waters and population subdivision across Indian Ocean and Indo-Malay Archipelago for Decapterus russelli. Sci Rep 2023; 13:22860. [PMID: 38129501 PMCID: PMC10739887 DOI: 10.1038/s41598-023-49805-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Accepted: 12/12/2023] [Indexed: 12/23/2023] Open
Abstract
The Indian Scad, Decapterus russelli is an important pelagic carangid widely distributed throughout the Indian Ocean and the Indo-West Pacific. Despite being widely distributed in the Indian Ocean, the information regarding genetic structuring and diversity has been lacking compared to its Indo Malay Archipelago counterparts. The present study was conducted to investigate the genetic stock structure of D. russelli based on mitochondrial (Cyt b) and nuclear (DrAldoB1) markers along Indian waters. The results indicated the presence of a single panmictic stock across the Indian Ocean region. High haplotype diversity associated with low nucleotide diversity suggested a population bottleneck followed by rapid population growth. Phylogenetic analysis revealed the absence of geographical clustering of lineages with the most common haplotype distributed globally. The pelagic life style, migratory capabilities, and larval dispersal may be the contributing factors to the observed spatial homogeneity of D. russelli. However, significant genetic differentiation was observed between the populations from Indian Ocean and Indo-Malay Archipelago. Hierarchical molecular variance analysis (AMOVA), pairwise FST comparisons and SAMOVA showed existence of two distinct genetic stocks of D. russelli in the Indian Ocean and IMA. The observed interpopulation genetic variation was high. A plausible explanation for the genetic differentiation observed between the Indo-Malay Archipelago and the Indian Ocean regions suggest the influence of historic isolation, ocean surface currents and biotic and abiotic features of the ocean. Also, there was a significant relationship between genetic distance and geographical distance between population pairs in a manner consistent with isolation-by-distance. These resulted in the evolution of a phylogeographic break for this species between these regions. The findings of these results suggest that D. russelli from the Indian Ocean shall be managed in its entire area of distribution as a single stock. Further, the Indian Ocean and Indo-Malayan stocks can be managed separately.
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Affiliation(s)
- Anjaly Jose
- Marine Biotechnology Fish Nutrition and Health Division, ICAR-Central Marine Fisheries Research Institute, Ernakulam North P O, Kochi, Kerala, 682018, India.
- Mangalore University, Mangalagangotri, Mangalore, Karnataka, 574199, India.
| | - Sandhya Sukumaran
- Marine Biotechnology Fish Nutrition and Health Division, ICAR-Central Marine Fisheries Research Institute, Ernakulam North P O, Kochi, Kerala, 682018, India
| | - Subal Kumar Roul
- Marine Biotechnology Fish Nutrition and Health Division, ICAR-Central Marine Fisheries Research Institute, Ernakulam North P O, Kochi, Kerala, 682018, India
| | - P Abdul Azeez
- Marine Biotechnology Fish Nutrition and Health Division, ICAR-Central Marine Fisheries Research Institute, Ernakulam North P O, Kochi, Kerala, 682018, India
| | - Shoba Joe Kizhakudan
- Marine Biotechnology Fish Nutrition and Health Division, ICAR-Central Marine Fisheries Research Institute, Ernakulam North P O, Kochi, Kerala, 682018, India
| | - Neenu Raj
- Marine Biotechnology Fish Nutrition and Health Division, ICAR-Central Marine Fisheries Research Institute, Ernakulam North P O, Kochi, Kerala, 682018, India
| | - K Nisha
- Marine Biotechnology Fish Nutrition and Health Division, ICAR-Central Marine Fisheries Research Institute, Ernakulam North P O, Kochi, Kerala, 682018, India
| | - A Gopalakrishnan
- Marine Biotechnology Fish Nutrition and Health Division, ICAR-Central Marine Fisheries Research Institute, Ernakulam North P O, Kochi, Kerala, 682018, India
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Azeez PA, Rohit P, Raman M, Shenoy L, Jaiswar AK, Koya KM, Mojjada SK, Damodaran D, Gopalakrishnan A. Exploring biophysical links of catch rate from mid-water trawl fishery in the north-west coast of India, Eastern Arabian Sea: A remote sensing approach. Sci Total Environ 2023; 886:163975. [PMID: 37164087 DOI: 10.1016/j.scitotenv.2023.163975] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2022] [Revised: 03/28/2023] [Accepted: 05/02/2023] [Indexed: 05/12/2023]
Abstract
Fish frequently shift their distribution ranges as a result of changes in preferred environmental factors. Knowledge on distribution of fish in relation to their environmental optima is crucial for improving the understanding of fishing grounds and planning sustainable exploitation. This study investigated the monthly variability in environmental factors impacting the catch rate and the spatio-temporal distribution patterns of fish along northwest coast of India (NWCI) from 2017 to 2019. The time series images of sea surface temperature (SST), sea surface height anomaly (SSHa), chlorophyll-a concentration (CHL), and euphotic depth (Zeu) indicate close coupling between bio-physical variables in the region. Generalized Additive Model (GAM) applied to the catch rate of mid-water trawlers found that CHL and Zeu were the most influential variables for ribbonfish distribution, while CHL and SST influence squid distribution and SST and SSHa influence cuttlefish distribution. The total deviation explained 37.70 %, 10.70 %, and 22.28 % in the final model for predicting the spatio-temporal distribution of ribbonfish, squid, and cuttlefish, respectively. Environmental factors were significant in the final GAM model (p < 0.05). Spatio-temporal distribution patterns of fishery resources from mid-water trawlers showed that they were related to biophysical changes in the northwest coast of India. The high catch rate was observed in the northern latitudes during the post-monsoon (October), the major fishing season in the region. However, it shrank and shifted to southern latitudes during the winter (January). This study could be adapted to nearby countries in the Arabian Sea region for an effective and useful tool to monitor and manage the fishery resources. Furthermore, it could aid in decision-making for policymakers and resource managers to formulate strategies for holistic marine fishery management and sustainable resource exploitation.
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Affiliation(s)
- P Abdul Azeez
- ICAR-Central Marine Fisheries Research Institute, Veraval Regional Station, Veraval 362269, Gujarat, India; ICAR-Central Institute of Fisheries Education, Fishery Resources Harvest and Post-harvest Division, Mumbai 400061, Maharashtra, India.
| | - Prathibha Rohit
- ICAR-Central Marine Fisheries Research Institute, Mangalore Regional Centre, Mangaluru 575001, Karnataka, India
| | - Mini Raman
- Space Applications Centre, Indian Space Research Organisation, Ahmedabad 380015, Gujarat, India
| | - Latha Shenoy
- ICAR-Central Institute of Fisheries Education, Fishery Resources Harvest and Post-harvest Division, Mumbai 400061, Maharashtra, India
| | - Ashok Kumar Jaiswar
- ICAR-Central Institute of Fisheries Education, Fishery Resources Harvest and Post-harvest Division, Mumbai 400061, Maharashtra, India
| | - K Mohammed Koya
- ICAR-Central Marine Fisheries Research Institute, Cochin 682018, Kerala, India
| | - Suresh K Mojjada
- ICAR-Central Marine Fisheries Research Institute, Veraval Regional Station, Veraval 362269, Gujarat, India
| | - Divu Damodaran
- ICAR-Central Marine Fisheries Research Institute, Veraval Regional Station, Veraval 362269, Gujarat, India
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Zeeshan M, Wenjun Z, Chuansheng W, Yan L, Azeez PA, Qinghai S, Yuntong L, Yiping Z, Zhiyun L, Liqing S. Soil heterotrophic respiration in response to rising temperature and moisture along an altitudinal gradient in a subtropical forest ecosystem, Southwest China. Sci Total Environ 2022; 816:151643. [PMID: 34780839 DOI: 10.1016/j.scitotenv.2021.151643] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Revised: 10/20/2021] [Accepted: 11/08/2021] [Indexed: 06/13/2023]
Abstract
Globally, one-third of the terrestrial carbon (C) is stored in tropical soils. The warming predicted for this century is expected to increase microbial decomposition in soil and escalate climate change potential by releasing more carbon dioxide (CO2) into the atmosphere. Understanding the response of soils to warming is a key challenge in predicting future climate change trajectories. Here we examined the combined effect of soil temperature (Ts) and soil water content (VWC) on soil heterotrophic respiration (Rsh) and its temperature sensitivity across different altitudes (2400, 1900, and 1450 m ASL) in the Ailaoshan subtropical forest ecosystem, Southwest China. Along the elevation gradient, soil C stocks in the top 10 cm soil layer increased significantly from 10.7 g/ kg at 1480 m ASL to 283.1 g/ kg at 2480 m ASL. Soil cores from various elevations were translocated to the same, and lower elevations and Rsh from those cores were measured every month from February 2010 to January 2014. Temperature sensitivity (Q10) of Rsh for the period was highest at the highest (H) elevation (Q10 = 5.3), decreased significantly towards the middle (M, Q10 = 3.1) and low (L, Q10 = 1.2) elevation. Q10 at M and L elevation did not differ between the place of origin and translocated cores. For the cores within each elevation, Q10 did not vary across the years. Our models suggest that Rsh increased significantly in response to an increase in Ts at each elevation under an intermediate VWC. Hence, the rate of emission was higher in lower elevations due to a higher Ts range. Our findings highlight that the predicted warming over the 21st century will have the greatest impact of Ts on Rsh, especially on the soils at the highest elevations, and will lead towards positive feedback to the climate system.
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Affiliation(s)
- Mohd Zeeshan
- CAS Key Laboratory of Tropical Forest Ecology, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Mengla, Yunnan 666303, China
| | - Zhou Wenjun
- CAS Key Laboratory of Tropical Forest Ecology, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Mengla, Yunnan 666303, China; Center for Plant Ecology, Core Botanical Gardens, Chinese Academy of Sciences, Mengla, Yunnan 666303, China.
| | - Wu Chuansheng
- Anhui Province Key Laboratory of Environmental Hormone and Reproduction, Fuyang Normal University, Fuyang, China, 100 Qinghe Rd, 236037 Fuyang, Anhui, China.
| | - Lin Yan
- Department of Environmental Science, Policy and Management, University of California, Berkeley, Berkeley, CA 94720-3114, USA
| | - P A Azeez
- Visiting Faculty, Department of Environmental Management, Bharathidasan University, Trichy 620024, Tamil Nadu, India
| | - Song Qinghai
- CAS Key Laboratory of Tropical Forest Ecology, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Mengla, Yunnan 666303, China; Center for Plant Ecology, Core Botanical Gardens, Chinese Academy of Sciences, Mengla, Yunnan 666303, China
| | - Liu Yuntong
- CAS Key Laboratory of Tropical Forest Ecology, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Mengla, Yunnan 666303, China; Center for Plant Ecology, Core Botanical Gardens, Chinese Academy of Sciences, Mengla, Yunnan 666303, China
| | - Zhang Yiping
- CAS Key Laboratory of Tropical Forest Ecology, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Mengla, Yunnan 666303, China; Center for Plant Ecology, Core Botanical Gardens, Chinese Academy of Sciences, Mengla, Yunnan 666303, China
| | - Lu Zhiyun
- CAS Key Laboratory of Tropical Forest Ecology, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Mengla, Yunnan 666303, China; Ailaoshan Station for Subtropical Forest Ecosystem Studies, Jingdong, Yunnan 676209, China
| | - Sha Liqing
- CAS Key Laboratory of Tropical Forest Ecology, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Mengla, Yunnan 666303, China; Center for Plant Ecology, Core Botanical Gardens, Chinese Academy of Sciences, Mengla, Yunnan 666303, China
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Prusty BAK, Chandra R, Azeez PA. Association of metals with geochemical phases in wetland soils of a Ramsar site in India. Environ Monit Assess 2019; 191:715. [PMID: 31677066 DOI: 10.1007/s10661-019-7913-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Accepted: 10/21/2019] [Indexed: 06/10/2023]
Abstract
Mobilization of metals in wetland ecosystems is a function of the behaviour of a specific metal species and is dependent largely on the prevailing micro-environmental conditions. Apparently, five different chemical forms of metals are known with varying affinity to binding sites, mobility, bioavailability and toxicity. Quantification of these forms of metals in the soils is imperative in predicting their biogeochemical fate and toxicity. In this context, we examined the association of Cu, Pb and Zn, with various geochemical phases in the soil profile of wetland system of Keoladeo National Park, a Ramsar site in India. The assessment covered the soil profile until 100 cm depth at every 25-cm intervals. Different operationally defined geochemical phases in the soil at different depths were examined during the study for respective metal concentrations. Hydrous oxides of Fe-Mn were the major carrier for all the three metals and the fraction associated with exchangeable phase was the least. The low organic matter content in the soil seems to be influencing the metal association with the organic matter (OM-S) phase, which was also a less preferred carrier for metals. For Cu (5.8-78.4%) and Pb (33.5-88.5%), Fe-Mn hydroxide phase was an important binding site and for Zn (31.02-79.03%), it was the silicate mineral matrix (RES phase). This suggests the importance of micro-environmental conditions in the wetland bed such as redox and pH in mobilization of metals. As metals such as Pb have high eco-toxicological potential, an assessment of fractional concentrations of metals provides insights into their mobility and bioavailability in aquatic ecosystems. This aids wetland managers to develop appropriate strategy to maintain quality of inflow water, the single most crucial factor for a wetland ecosystem, and thus controls the micro-environmental conditions.
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Affiliation(s)
- B Anjan Kumar Prusty
- Department of Natural Resources Management and Geoinformatics, Khallikote University, At G-Max Builiding on NH-16, Kanisi, Dist. Ganjam, Berhampur, Odisha, 761008, India.
| | - Rachna Chandra
- Gujarat Institute of Desert Ecology (GUIDE), P.O. # 83, Opp. Changleshwar Temple, Mundra Road, Bhuj, 370001, India
| | - P A Azeez
- Sálim Ali Centre for Ornithology and Natural History (SACON), Anaikatty (PO), Coimbatore, 641108, India
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Zeeshan M, Azeez PA. Hydro-chemical characterization and quality assessment of a Western Himalayan river, Munawar Tawi, flowing through Rajouri district, Jammu and Kashmir, India. Environ Monit Assess 2016; 188:520. [PMID: 27526045 DOI: 10.1007/s10661-016-5523-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2016] [Accepted: 08/01/2016] [Indexed: 06/06/2023]
Abstract
Studies on river water quality in the Indian Himalayas are limited to a few larger ones; the smaller ones, although vital for a large section of people, mostly remain untouched. Therefore, Munawar Tawi a tributary of Chenab flowing through Rajouri district of Jammu region, Western Himalayas was selected for the study. Fifty-four water samples from 27 sites from Rajouri town and its upstream and downstream locations were collected during January and June 2014. Fourteen water quality parameters that include major cations and anions were analyzed. Water quality indicators such as SAR, %Na, RSC, MAR, KI, and PI were also calculated to determine suitability of water for irrigation. Piper plots identified four water types, of which Ca(2+)-Mg(2+)-HCO(-) 3 was the dominant type in both the seasons. While in January, water samples varied across all the four types, in June only two types were seen (i.e. Ca(2+)-Mg(2+)-HCO(-) 3 and Ca(2+)-Mg(2+)-Na(+)-HCO(-) 3). Ludwig-Langelier plot also showed Ca(2+)-Mg(2+)-HCO(-) 3 type as the dominant water type. Wilcoxon signed-rank test showed most of the parameters, except TDS, significantly high in January than in June. Kruskal-Wallis test showed significant variation in concentration among most of the parameters from upstream to the town and towards downstream. The water, with respect to the set standards (WHO, ISI, UNESCO), in both January and June, is found suitable for drinking and irrigation.
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Affiliation(s)
- Mohd Zeeshan
- Environmental Impact Assessment Division, Sálim Ali Centre for Ornithology and Natural History (SACON), Coimbatore, Tamil Nadu, 641108, India.
| | - P A Azeez
- Environmental Impact Assessment Division, Sálim Ali Centre for Ornithology and Natural History (SACON), Coimbatore, Tamil Nadu, 641108, India
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6
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Singh RP, Shafeeque CM, Sharma SK, Singh R, Mohan J, Sastry KVH, Saxena VK, Azeez PA. Chicken sperm transcriptome profiling by microarray analysis. Genome 2015; 59:185-96. [PMID: 26868024 DOI: 10.1139/gen-2015-0106] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
It has been confirmed that mammalian sperm contain thousands of functional RNAs, and some of them have vital roles in fertilization and early embryonic development. Therefore, we attempted to characterize transcriptome of the sperm of fertile chickens using microarray analysis. Spermatozoal RNA was pooled from 10 fertile males and used for RNA preparation. Prior to performing the microarray, RNA quality was assessed using a bioanalyzer, and gDNA and somatic cell RNA contamination was assessed by CD4 and PTPRC gene amplification. The chicken sperm transcriptome was cross-examined by analysing sperm and testes RNA on a 4 × 44K chicken array, and results were verified by RT-PCR. Microarray analysis identified 21,639 predominantly nuclear-encoded transcripts in chicken sperm. The majority (66.55%) of the sperm transcripts were shared with the testes, while surprisingly, 33.45% transcripts were detected (raw signal intensity greater than 50) only in the sperm and not in the testes. The greatest proportion of up-regulated transcripts were responsible for signal transduction (63.20%) followed by embryonic development (56.76%) and cell structure (56.25%). Of the 20 most abundant transcripts, 18 remain uncharacterized, whereas the least abundant genes were mostly associated with the ribosome. These findings lay a foundation for more detailed investigations on sperm RNAs in chickens to identify sperm-based biomarkers for fertility.
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Affiliation(s)
- R P Singh
- a Avian Physiology and Genetics Division, Sálim Ali Centre for Ornithology and Natural History, Anaikatty-641108, Coimbatore, India
| | - C M Shafeeque
- a Avian Physiology and Genetics Division, Sálim Ali Centre for Ornithology and Natural History, Anaikatty-641108, Coimbatore, India
| | - S K Sharma
- b Central Avian Research Institute, Izatnagar, 243122, India
| | - R Singh
- c Indian Veterinary Research Institute, Izatnagar, 243122, India
| | - J Mohan
- b Central Avian Research Institute, Izatnagar, 243122, India
| | - K V H Sastry
- b Central Avian Research Institute, Izatnagar, 243122, India
| | - V K Saxena
- b Central Avian Research Institute, Izatnagar, 243122, India
| | - P A Azeez
- a Avian Physiology and Genetics Division, Sálim Ali Centre for Ornithology and Natural History, Anaikatty-641108, Coimbatore, India
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Chandra R, Prusty BAK, Azeez PA. Spatial variability and temporal changes in the trace metal content of soils: implications for mine restoration plan. Environ Monit Assess 2014; 186:3661-3671. [PMID: 24493264 DOI: 10.1007/s10661-014-3648-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2013] [Accepted: 01/20/2014] [Indexed: 06/03/2023]
Abstract
Trace metals in soils may be inherited from the parent materials or added to the system due to anthropogenic activities. In proposed mining areas, trace metals become an integral part of the soil system. Usually, researchers undertake experiments on plant species selection (for the restoration plan) only after the termination of mining activities, i.e. without any pre-mining information about the soil-plant interactions. Though not shown in studies, it is clear that several recovery plans remain unsuccessful while carrying out restoration experiments. Therefore, we hypothesize that to restore the area effectively, it is imperative to consider the pre-mining scenario of metal levels in parent material as well as the vegetation ecology of the region. With these specifics, we examined the concentrations of trace metals in parent soils at three proposed bauxite locations in the Eastern Ghats, India, and compared them at a spatio-temporal scale. Vegetation quantification and other basic soil parameters accounted for establishing the connection between soil and plants. The study recorded significant spatial heterogeneity in trace metal concentrations and the role of vegetation on metal availability. Oxidation reduction potential (ORP), pH and cation exchange capacity (CEC) directly influenced metal content, and Cu and Ni were lithogenic in origin. It implies that for effective restoration plant species varies for each geological location.
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Affiliation(s)
- Rachna Chandra
- Environmental Impact Assessment Division, Sálim Ali Centre for Ornithology and Natural History (SACON), Anaikatti (PO), Coimbatore, 641108, India,
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Chandra R, Nishadh KA, Azeez PA. Monitoring water quality of Coimbatore wetlands, Tamil Nadu, India. Environ Monit Assess 2010; 169:671-676. [PMID: 19902369 DOI: 10.1007/s10661-009-1206-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2009] [Accepted: 10/09/2009] [Indexed: 05/28/2023]
Abstract
Signs of wetland-water quality degradation have been apparent for decades, especially in those wetlands situated in the vicinity of cities and human habitations. Investigation on four urban wetlands of Coimbatore have been undertaken to assess the water quality with reference to pollution from various sources. The pH and total dissolved solids (TDS) values of the lakes were found to be different from those reported almost a decade back. The concentrations of phosphate and sulphate were much lower than the earlier reported values. The present scenario states that though the biochemical oxygen demand and chemical oxygen demand values were lower for the Ukkadam wetland, the values for Perur wetland have shown a gradual increase. Alkalinity and chloride concentrations were thrice higher than the previous findings. Electrical conductivity and TDS ranged from 303.67 to 4,456.7 muS/cm and from 169 to 2,079.3 mg/l, respectively, and were positively correlated with chloride and sulphate (P < 0.05). These changes are a reflection of the environmental changes happening in the cityscape of the Coimbatore, a fast-growing city in south India.
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Affiliation(s)
- Rachna Chandra
- Environmental Impact Assessment Division, Sálim Ali Center for Ornithology and Natural, History, Anaikatty (PO), Coimbatore, 641108, India.
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Prusty BAK, Azeez PA, Jagadeesh EP. Alkali and transition metals in macrophytes of a wetland system. Bull Environ Contam Toxicol 2007; 78:405-10. [PMID: 17541484 DOI: 10.1007/s00128-007-9107-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2007] [Accepted: 03/16/2007] [Indexed: 05/15/2023]
Affiliation(s)
- B Anjan Kumar Prusty
- Environmental Impact Assessment Division, Sálim Ali Center for Ornithology and Natural History, Anaikatty (PO), Coimbatore, 641 108, India.
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Prusty BAK, Mishra PC, Azeez PA. Dust accumulation and leaf pigment content in vegetation near the national highway at Sambalpur, Orissa, India. Ecotoxicol Environ Saf 2005; 60:228-35. [PMID: 15546639 DOI: 10.1016/j.ecoenv.2003.12.013] [Citation(s) in RCA: 88] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2003] [Revised: 11/07/2003] [Accepted: 12/09/2003] [Indexed: 05/23/2023]
Abstract
An investigation on the seasonal variation in dust accumulation on leaves and leaf pigment content of six plant species of mixed habits was carried out at the side of the National Highway (NH 6) at Sambalpur, Orissa, India. The plants selected for study were Pongamia pinnata, Tabernaemontana divaricata, Ipomea carnea, Ficus relogiosa, Ficus benghalensis, and Quisqualis indica. The observed trend of dust accumulation was in the order T. divaricata>I. carnea>P. pinnata>F. religiosa>F. benghalensis>Q. indica. One-way analysis of variance showed significant difference in dust accumulation among plant species (F1 = 4.674, P < 0.01) and between seasons (F2 = 9.240, P < 0.01). It was seen that dust load increases with increasing number of vehicles using the highway (major emission source). The result shows significant correlation (negative) between dust load and pigment content in summer and rainy season.
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Affiliation(s)
- B A K Prusty
- Department of Environmental Sciences, Sambalpur University, Jyoti Vihar 768019, Orissa, India
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Abstract
Exposures to airborne metals are known to cause physiological responses in organisms and wide-ranging health effects in humans. Hence determination of metals in particulate matter is important from a toxicological perspective. In the current study heavy metals associated with respirable (RSPM) and nonrespirable (NRSPM) fractions of suspended particulate matter were estimated in air samples from six stations in Coimbatore, India, during March 1999 to February 2001. The mean quantity of heavy metals in RSPM was in the order Zn > Cu > Pb > Ni > Cr > Cd. Concentrations of these heavy metals were in the range of BDL (below detectable level) to 2,147 ng/m3 in RSPM. The highest level of lead (2,147 ng/m(3)) was recorded at an industrial station. The station also had the highest mean value (481 +/- 544.3 ng/m(3)), suggesting the importance of industrial operations in determining the ambient concentrations of lead. Significant positive correlation among metals excepting lead and copper suggests that they originate mostly from a common source. Air samples of urban and industrial areas showed higher concentrations than residential (Urban) and suburban areas.
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Affiliation(s)
- R Mohanraj
- Environmental Impact Assessment Division, Salim Ali Centre for Ornithology and Natural History, Anaikatty, Coimbatore-641 108, India
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Mathew M, Mohanraj R, Azeez PA, Pattabhi S. Speciation of heavy metals in bed sediments of wetlands in urban Coimbatore, India. Bull Environ Contam Toxicol 2003; 70:800-808. [PMID: 12677394 DOI: 10.1007/s00128-003-0053-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Affiliation(s)
- M Mathew
- Department of Environmental Science, PSGCAS, Coimbatore 641 014, India
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Mathew M, Sathish Kumar M, Azeez PA, Sivakumar R, Pattabi S. Sediment quality of wetlands in Coimbatore, Tamilnadu, India. Bull Environ Contam Toxicol 2002; 68:389-393. [PMID: 11993814 DOI: 10.1007/s001280266] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Affiliation(s)
- M Mathew
- Department of Environmental Sciences, PSG CAS, Coimbatore, India
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Mohanraj R, Sathishkumar M, Azeez PA, Sivakumar R. Pollution status of wetlands in urban Coimbatore, Tamilnadu, India. Bull Environ Contam Toxicol 2000; 64:638-643. [PMID: 10857445 DOI: 10.1007/s001280000051] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Affiliation(s)
- R Mohanraj
- Environmental Impact Assessment Division, Salim Ali Centre for Ornithology and Natural History, Anaikatty, Coimbatore, India
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Senthilnathan S, Azeez PA. Influence of dyeing and bleaching industries on ground water of Tirupur, Tamilnadu, India. Bull Environ Contam Toxicol 1999; 62:330-335. [PMID: 10085177 DOI: 10.1007/s001289900878] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Affiliation(s)
- S Senthilnathan
- Environmental Impact Assessment Division, Sálim Ali Centre for Ornithology and Natural History, Annaikatti (PO), Coimbatore 641 108, Tamilnadu, India
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