Spatial distribution of benthic foraminifera in the Lagos Lagoon (Nigeria): Tracing the impact of environmental perturbations
Lagos Lagoon is among Africa's largest estuarine ecosystems, bordered by one of the fastest growing megacities in the world and the ultimate repository of contaminants carried in industrial, municipal and agricultural wastes. The high levels of pollutants have progressively deteriorated the wat...
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| description | Lagos Lagoon is among Africa's largest estuarine ecosystems, bordered by one of the fastest growing megacities in the world and the ultimate repository of contaminants carried in industrial, municipal and agricultural wastes. The high levels of pollutants have progressively deteriorated the water quality, adversely affected lagoon ecosystems, impacted the livelihood of the coastal population and pose serious risks to human health. Benthic foraminifera are excellent proxies and sensitive bioindicators of environmental disturbances but comprehensive studies on the structure, distribution, diversity and impact of pollution upon foraminiferal communities have not yet been conducted in the Lagos Lagoon. To demonstrate the potential of foraminifera as proxies of environmental perturbations, benthic foraminifera were investigated on a lagoon-wide basis. Lagos Lagoon comprises areas that range from low levels of direct impact to those of severely affected by various forms of anthropogenic disturbance. The goals of this study are to analyze patterns of distribution and species richness, to document foraminiferal community structures, and to identify taxa that track documented records of pollution in Lagos Lagoon sediments. Heat maps were generated from abundance records for selected species to illustrate environmental preferences and relative resistance levels to individual forms of anthropogenic disturbance. Sediments were analyzed for a range of physicochemical properties, via a multi-parameter sensor probe-device, including temperature, pH, depth and total dissolved solids (TDS). Quantitative analysis of 24 sediment samples yielded a total 3872 individuals of benthic foraminifera that belong to 42 species and 25 genera. They comprise 10 porcellaneous, 22 hyaline perforate and 10 agglutinated species. Ammobaculites exiguus, Ammotium salsum, Ammonia aoteana, Ammonia convexa and Trochammina sp. 1 have been found to be the most abundant species. For the first time, the complete present-day foraminifera fauna is illustrated here via scanning electron microscopy. The features recorded allow to assess the spatial effects of pollution upon foraminiferal assemblages on a lagoon-wide basis. The data generated may ultimately form the basis to assess the progressive deterioration of Lagos Lagoon ecosystems from cores by using benthic foraminifera as bioindicators of environmental perturbation. |
| doi_str_mv | 10.1371/journal.pone.0243481 |
| format | Article |
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The high levels of pollutants have progressively deteriorated the water quality, adversely affected lagoon ecosystems, impacted the livelihood of the coastal population and pose serious risks to human health. Benthic foraminifera are excellent proxies and sensitive bioindicators of environmental disturbances but comprehensive studies on the structure, distribution, diversity and impact of pollution upon foraminiferal communities have not yet been conducted in the Lagos Lagoon. To demonstrate the potential of foraminifera as proxies of environmental perturbations, benthic foraminifera were investigated on a lagoon-wide basis. Lagos Lagoon comprises areas that range from low levels of direct impact to those of severely affected by various forms of anthropogenic disturbance. The goals of this study are to analyze patterns of distribution and species richness, to document foraminiferal community structures, and to identify taxa that track documented records of pollution in Lagos Lagoon sediments. Heat maps were generated from abundance records for selected species to illustrate environmental preferences and relative resistance levels to individual forms of anthropogenic disturbance. Sediments were analyzed for a range of physicochemical properties, via a multi-parameter sensor probe-device, including temperature, pH, depth and total dissolved solids (TDS). Quantitative analysis of 24 sediment samples yielded a total 3872 individuals of benthic foraminifera that belong to 42 species and 25 genera. They comprise 10 porcellaneous, 22 hyaline perforate and 10 agglutinated species. Ammobaculites exiguus, Ammotium salsum, Ammonia aoteana, Ammonia convexa and Trochammina sp. 1 have been found to be the most abundant species. For the first time, the complete present-day foraminifera fauna is illustrated here via scanning electron microscopy. The features recorded allow to assess the spatial effects of pollution upon foraminiferal assemblages on a lagoon-wide basis. The data generated may ultimately form the basis to assess the progressive deterioration of Lagos Lagoon ecosystems from cores by using benthic foraminifera as bioindicators of environmental perturbation.</description><identifier>ISSN: 1932-6203</identifier><identifier>EISSN: 1932-6203</identifier><identifier>DOI: 10.1371/journal.pone.0243481</identifier><identifier>PMID: 33284843</identifier><language>eng</language><publisher>United States: Public Library of Science</publisher><subject>Agricultural wastes ; Ammonia ; Anthropogenic factors ; Benthos (Aquatic organisms) ; Bioindicators ; Biology and Life Sciences ; Biomonitoring ; Cluster Analysis ; Contaminants ; Distribution ; Disturbance ; Earth Sciences ; Ecology and Environmental Sciences ; Ecosystem ; Ecosystems ; Electron microscopy ; Environmental aspects ; Environmental health ; Environmental impact ; Environmental Monitoring ; Estuaries ; Estuarine ecosystems ; Foraminifera ; Foraminifera - growth & development ; Foraminifera - isolation & purification ; Fresh Water - analysis ; Fresh Water - microbiology ; Fresh Water - parasitology ; Geographical distribution ; Geologic Sediments - analysis ; Geologic Sediments - microbiology ; Geologic Sediments - parasitology ; Health risks ; Human influences ; Hydrogen-Ion Concentration ; Indicator species ; Industrial pollution ; Lagoons ; Megacities ; Nigeria ; Perturbation ; Physical Sciences ; Physicochemical properties ; Pollutants ; Pollution ; Pollution effects ; Pollution levels ; Principal Component Analysis ; Rivers ; Salinity ; Sand & gravel ; Scanning electron microscopy ; Seasons ; Sediment pollution ; Sediment samplers ; Sediments ; Spatial Analysis ; Spatial distribution ; Species richness ; Temperature ; Total dissolved solids ; Water pollution ; Water quality</subject><ispartof>PloS one, 2020-12, Vol.15 (12), p.e0243481</ispartof><rights>COPYRIGHT 2020 Public Library of Science</rights><rights>2020 Fajemila et al. This is an open access article distributed under the terms of the Creative Commons Attribution License: http://creativecommons.org/licenses/by/4.0/ (the “License”), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.</rights><rights>2020 Fajemila et al 2020 Fajemila et al</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c593t-211575b1fd84049f102f4fe88fca22f88314c2b8a4e0763fe78ae33b17124eca3</citedby><cites>FETCH-LOGICAL-c593t-211575b1fd84049f102f4fe88fca22f88314c2b8a4e0763fe78ae33b17124eca3</cites><orcidid>0000-0002-1091-1372</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC7721140/pdf/$$EPDF$$P50$$Gpubmedcentral$$Hfree_for_read</linktopdf><linktohtml>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC7721140/$$EHTML$$P50$$Gpubmedcentral$$Hfree_for_read</linktohtml><link.rule.ids>230,314,727,780,784,864,885,2102,2928,23866,27924,27925,53791,53793</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/33284843$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><contributor>Rubal García, Marcos</contributor><creatorcontrib>Fajemila, Olugbenga T</creatorcontrib><creatorcontrib>Sariaslan, Nisan</creatorcontrib><creatorcontrib>Langer, Martin R</creatorcontrib><title>Spatial distribution of benthic foraminifera in the Lagos Lagoon (Nigeria): Tracing the impact of environmental perturbations</title><title>PloS one</title><addtitle>PLoS One</addtitle><description>Lagos Lagoon is among Africa's largest estuarine ecosystems, bordered by one of the fastest growing megacities in the world and the ultimate repository of contaminants carried in industrial, municipal and agricultural wastes. 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For the first time, the complete present-day foraminifera fauna is illustrated here via scanning electron microscopy. The features recorded allow to assess the spatial effects of pollution upon foraminiferal assemblages on a lagoon-wide basis. The data generated may ultimately form the basis to assess the progressive deterioration of Lagos Lagoon ecosystems from cores by using benthic foraminifera as bioindicators of environmental perturbation.</description><subject>Agricultural wastes</subject><subject>Ammonia</subject><subject>Anthropogenic factors</subject><subject>Benthos (Aquatic organisms)</subject><subject>Bioindicators</subject><subject>Biology and Life Sciences</subject><subject>Biomonitoring</subject><subject>Cluster Analysis</subject><subject>Contaminants</subject><subject>Distribution</subject><subject>Disturbance</subject><subject>Earth Sciences</subject><subject>Ecology and Environmental Sciences</subject><subject>Ecosystem</subject><subject>Ecosystems</subject><subject>Electron microscopy</subject><subject>Environmental aspects</subject><subject>Environmental health</subject><subject>Environmental impact</subject><subject>Environmental Monitoring</subject><subject>Estuaries</subject><subject>Estuarine ecosystems</subject><subject>Foraminifera</subject><subject>Foraminifera - growth & development</subject><subject>Foraminifera - isolation & purification</subject><subject>Fresh Water - analysis</subject><subject>Fresh Water - microbiology</subject><subject>Fresh Water - parasitology</subject><subject>Geographical distribution</subject><subject>Geologic Sediments - analysis</subject><subject>Geologic Sediments - microbiology</subject><subject>Geologic Sediments - parasitology</subject><subject>Health risks</subject><subject>Human influences</subject><subject>Hydrogen-Ion Concentration</subject><subject>Indicator species</subject><subject>Industrial pollution</subject><subject>Lagoons</subject><subject>Megacities</subject><subject>Nigeria</subject><subject>Perturbation</subject><subject>Physical Sciences</subject><subject>Physicochemical properties</subject><subject>Pollutants</subject><subject>Pollution</subject><subject>Pollution effects</subject><subject>Pollution levels</subject><subject>Principal Component Analysis</subject><subject>Rivers</subject><subject>Salinity</subject><subject>Sand & gravel</subject><subject>Scanning electron microscopy</subject><subject>Seasons</subject><subject>Sediment pollution</subject><subject>Sediment samplers</subject><subject>Sediments</subject><subject>Spatial Analysis</subject><subject>Spatial distribution</subject><subject>Species richness</subject><subject>Temperature</subject><subject>Total dissolved solids</subject><subject>Water pollution</subject><subject>Water 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One</addtitle><date>2020-12-07</date><risdate>2020</risdate><volume>15</volume><issue>12</issue><spage>e0243481</spage><pages>e0243481-</pages><issn>1932-6203</issn><eissn>1932-6203</eissn><abstract>Lagos Lagoon is among Africa's largest estuarine ecosystems, bordered by one of the fastest growing megacities in the world and the ultimate repository of contaminants carried in industrial, municipal and agricultural wastes. The high levels of pollutants have progressively deteriorated the water quality, adversely affected lagoon ecosystems, impacted the livelihood of the coastal population and pose serious risks to human health. Benthic foraminifera are excellent proxies and sensitive bioindicators of environmental disturbances but comprehensive studies on the structure, distribution, diversity and impact of pollution upon foraminiferal communities have not yet been conducted in the Lagos Lagoon. To demonstrate the potential of foraminifera as proxies of environmental perturbations, benthic foraminifera were investigated on a lagoon-wide basis. Lagos Lagoon comprises areas that range from low levels of direct impact to those of severely affected by various forms of anthropogenic disturbance. The goals of this study are to analyze patterns of distribution and species richness, to document foraminiferal community structures, and to identify taxa that track documented records of pollution in Lagos Lagoon sediments. Heat maps were generated from abundance records for selected species to illustrate environmental preferences and relative resistance levels to individual forms of anthropogenic disturbance. Sediments were analyzed for a range of physicochemical properties, via a multi-parameter sensor probe-device, including temperature, pH, depth and total dissolved solids (TDS). Quantitative analysis of 24 sediment samples yielded a total 3872 individuals of benthic foraminifera that belong to 42 species and 25 genera. They comprise 10 porcellaneous, 22 hyaline perforate and 10 agglutinated species. Ammobaculites exiguus, Ammotium salsum, Ammonia aoteana, Ammonia convexa and Trochammina sp. 1 have been found to be the most abundant species. For the first time, the complete present-day foraminifera fauna is illustrated here via scanning electron microscopy. The features recorded allow to assess the spatial effects of pollution upon foraminiferal assemblages on a lagoon-wide basis. The data generated may ultimately form the basis to assess the progressive deterioration of Lagos Lagoon ecosystems from cores by using benthic foraminifera as bioindicators of environmental perturbation.</abstract><cop>United States</cop><pub>Public Library of Science</pub><pmid>33284843</pmid><doi>10.1371/journal.pone.0243481</doi><orcidid>https://orcid.org/0000-0002-1091-1372</orcidid><oa>free_for_read</oa></addata></record> |
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| issn | 1932-6203 1932-6203 |
| language | eng |
| recordid | cdi_plos_journals_2467831944 |
| source | MEDLINE; DOAJ Directory of Open Access Journals; Public Library of Science (PLoS) Journals Open Access; EZB-FREE-00999 freely available EZB journals; PubMed Central; Free Full-Text Journals in Chemistry |
| subjects | Agricultural wastes Ammonia Anthropogenic factors Benthos (Aquatic organisms) Bioindicators Biology and Life Sciences Biomonitoring Cluster Analysis Contaminants Distribution Disturbance Earth Sciences Ecology and Environmental Sciences Ecosystem Ecosystems Electron microscopy Environmental aspects Environmental health Environmental impact Environmental Monitoring Estuaries Estuarine ecosystems Foraminifera Foraminifera - growth & development Foraminifera - isolation & purification Fresh Water - analysis Fresh Water - microbiology Fresh Water - parasitology Geographical distribution Geologic Sediments - analysis Geologic Sediments - microbiology Geologic Sediments - parasitology Health risks Human influences Hydrogen-Ion Concentration Indicator species Industrial pollution Lagoons Megacities Nigeria Perturbation Physical Sciences Physicochemical properties Pollutants Pollution Pollution effects Pollution levels Principal Component Analysis Rivers Salinity Sand & gravel Scanning electron microscopy Seasons Sediment pollution Sediment samplers Sediments Spatial Analysis Spatial distribution Species richness Temperature Total dissolved solids Water pollution Water quality |
| title | Spatial distribution of benthic foraminifera in the Lagos Lagoon (Nigeria): Tracing the impact of environmental perturbations |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2024-12-21T09%3A46%3A56IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-gale_plos_&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Spatial%20distribution%20of%20benthic%20foraminifera%20in%20the%20Lagos%20Lagoon%20(Nigeria):%20Tracing%20the%20impact%20of%20environmental%20perturbations&rft.jtitle=PloS%20one&rft.au=Fajemila,%20Olugbenga%20T&rft.date=2020-12-07&rft.volume=15&rft.issue=12&rft.spage=e0243481&rft.pages=e0243481-&rft.issn=1932-6203&rft.eissn=1932-6203&rft_id=info:doi/10.1371/journal.pone.0243481&rft_dat=%3Cgale_plos_%3EA644109117%3C/gale_plos_%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=2467831944&rft_id=info:pmid/33284843&rft_galeid=A644109117&rft_doaj_id=oai_doaj_org_article_4c4daa6b314345669ba580f3bb9790b4&rfr_iscdi=true |