Ecological integrity and fisheries ecology of the Araguaia-Tocantins River Basin, Brazil
An attempt is made to evaluate the present environmental impacts of the Tucuruí dam on the fisheries and ecological integrity of the Araguaia—Tocantins basin. Management and research needs to minimize the impacts from future hydroprojects and increased human activities in the basin are also addresse...
Gespeichert in:
Veröffentlicht in: | Regulated rivers 1995-11, Vol.11 (3-4), p.325-350 |
---|---|
Hauptverfasser: | , , |
Format: | Artikel |
Sprache: | eng |
Schlagworte: | |
Online-Zugang: | Volltext |
Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
container_end_page | 350 |
---|---|
container_issue | 3-4 |
container_start_page | 325 |
container_title | Regulated rivers |
container_volume | 11 |
creator | Ribeiro, Mauro César Lambert de Brito Petrere Junior, Miguel Juras, Anastácio Affonso |
description | An attempt is made to evaluate the present environmental impacts of the Tucuruí dam on the fisheries and ecological integrity of the Araguaia—Tocantins basin. Management and research needs to minimize the impacts from future hydroprojects and increased human activities in the basin are also addressed. The Tocantins and Araguaia fish fauna is not especially rich by Amazonian standards (about 300 species). Total yields are also rather low (about 8800 t/y) in a river stretch of about 2500 km and unique for being concentrated (90%) in the main channel. Fisheries are heavily dependent on migratory fish and may be severely damaged as a consequence of river regulation. Downstream from the Tucurui Dam important fisheries have been drastically reduced (70%), probably by recruitment failure, lower productivity and overfishing. Upstream from the dam, however, fisheries have benefited from the higher productivity of the artificial lake, although this has not compensated for the regional economic shortages. Management based on ‘basinwise’ catch statistics and fish migration research should take account of likely future disruptions of commercial fisheries by the synergistic effects of other planned impoundments, mining, deforestation and uncontrolled sport fisheries in the middle and upper basins. |
doi_str_mv | 10.1002/rrr.3450110308 |
format | Article |
fullrecord | <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_miscellaneous_17024470</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>17024470</sourcerecordid><originalsourceid>FETCH-LOGICAL-c4168-5c9adf9b750efcccbb1511e2c7aa372eb0c8f9f14a54233ec78c64f55fe5223e3</originalsourceid><addsrcrecordid>eNqFkT1PHDEQhq0oSLkALbWLKFX24m-vS47wEYRItAJBZ82Z8eFk2SX2Hsnx61k4RESFppjmed-RniFkh7MpZ0x8zTlPpdKMcyZZ_Y5MOHOu4kaZ92TC6tpUTlr9gXws5RdjfBwxIZf7oW_7RQrQ0tQNuMhpWFHormhM5RpzwkLxCVnRPtLhGuluhsUSElRnfYBuSF2hTbrDTGdQUveFzjLcp3aLbERoC24_701yfrB_tndUnfw4_L63e1IFxU1d6eDgKrq51QxjCGE-55pzFMECSCtwzkIdXeQKtBJSYrB1MCpqHVELIVFuks_r3tvc_1liGfxNKgHbFjrsl8Vzy4RSlr0NSqNcbcwITtdgyH0pGaO_zekG8spz5h9N-9G0_296DHx6boYyeowZupDKS0o4yw23I-bW2N_U4uqNUt80zasT1TqbyoD_XrKQf3tjx6_6i9NDz-Txz-bbTPkj-QDyh56O</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>13649866</pqid></control><display><type>article</type><title>Ecological integrity and fisheries ecology of the Araguaia-Tocantins River Basin, Brazil</title><source>Access via Wiley Online Library</source><creator>Ribeiro, Mauro César Lambert de Brito ; Petrere Junior, Miguel ; Juras, Anastácio Affonso</creator><creatorcontrib>Ribeiro, Mauro César Lambert de Brito ; Petrere Junior, Miguel ; Juras, Anastácio Affonso</creatorcontrib><description>An attempt is made to evaluate the present environmental impacts of the Tucuruí dam on the fisheries and ecological integrity of the Araguaia—Tocantins basin. Management and research needs to minimize the impacts from future hydroprojects and increased human activities in the basin are also addressed. The Tocantins and Araguaia fish fauna is not especially rich by Amazonian standards (about 300 species). Total yields are also rather low (about 8800 t/y) in a river stretch of about 2500 km and unique for being concentrated (90%) in the main channel. Fisheries are heavily dependent on migratory fish and may be severely damaged as a consequence of river regulation. Downstream from the Tucurui Dam important fisheries have been drastically reduced (70%), probably by recruitment failure, lower productivity and overfishing. Upstream from the dam, however, fisheries have benefited from the higher productivity of the artificial lake, although this has not compensated for the regional economic shortages. Management based on ‘basinwise’ catch statistics and fish migration research should take account of likely future disruptions of commercial fisheries by the synergistic effects of other planned impoundments, mining, deforestation and uncontrolled sport fisheries in the middle and upper basins.</description><identifier>ISSN: 0886-9375</identifier><identifier>EISSN: 1099-1646</identifier><identifier>DOI: 10.1002/rrr.3450110308</identifier><language>eng</language><publisher>New York: John Wiley & Sons, Ltd</publisher><subject>Animal, plant and microbial ecology ; Applied ecology ; Araguaia-Tocantins River Basin ; Biological and medical sciences ; Brazil ; Conservation, protection and management of environment and wildlife ; Environmental degradation: ecosystems survey and restoration ; fisheries ecology ; Freshwater ; Fundamental and applied biological sciences. Psychology ; Pisces ; Tucuruí Dam</subject><ispartof>Regulated rivers, 1995-11, Vol.11 (3-4), p.325-350</ispartof><rights>Copyright © 1995 John Wiley & Sons, Ltd</rights><rights>1996 INIST-CNRS</rights><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c4168-5c9adf9b750efcccbb1511e2c7aa372eb0c8f9f14a54233ec78c64f55fe5223e3</citedby><cites>FETCH-LOGICAL-c4168-5c9adf9b750efcccbb1511e2c7aa372eb0c8f9f14a54233ec78c64f55fe5223e3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1002%2Frrr.3450110308$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1002%2Frrr.3450110308$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>309,310,314,780,784,789,790,1417,23930,23931,25140,27924,27925,45574,45575</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=2971617$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Ribeiro, Mauro César Lambert de Brito</creatorcontrib><creatorcontrib>Petrere Junior, Miguel</creatorcontrib><creatorcontrib>Juras, Anastácio Affonso</creatorcontrib><title>Ecological integrity and fisheries ecology of the Araguaia-Tocantins River Basin, Brazil</title><title>Regulated rivers</title><addtitle>Regul. Rivers: Res. Mgmt</addtitle><description>An attempt is made to evaluate the present environmental impacts of the Tucuruí dam on the fisheries and ecological integrity of the Araguaia—Tocantins basin. Management and research needs to minimize the impacts from future hydroprojects and increased human activities in the basin are also addressed. The Tocantins and Araguaia fish fauna is not especially rich by Amazonian standards (about 300 species). Total yields are also rather low (about 8800 t/y) in a river stretch of about 2500 km and unique for being concentrated (90%) in the main channel. Fisheries are heavily dependent on migratory fish and may be severely damaged as a consequence of river regulation. Downstream from the Tucurui Dam important fisheries have been drastically reduced (70%), probably by recruitment failure, lower productivity and overfishing. Upstream from the dam, however, fisheries have benefited from the higher productivity of the artificial lake, although this has not compensated for the regional economic shortages. Management based on ‘basinwise’ catch statistics and fish migration research should take account of likely future disruptions of commercial fisheries by the synergistic effects of other planned impoundments, mining, deforestation and uncontrolled sport fisheries in the middle and upper basins.</description><subject>Animal, plant and microbial ecology</subject><subject>Applied ecology</subject><subject>Araguaia-Tocantins River Basin</subject><subject>Biological and medical sciences</subject><subject>Brazil</subject><subject>Conservation, protection and management of environment and wildlife</subject><subject>Environmental degradation: ecosystems survey and restoration</subject><subject>fisheries ecology</subject><subject>Freshwater</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>Pisces</subject><subject>Tucuruí Dam</subject><issn>0886-9375</issn><issn>1099-1646</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1995</creationdate><recordtype>article</recordtype><recordid>eNqFkT1PHDEQhq0oSLkALbWLKFX24m-vS47wEYRItAJBZ82Z8eFk2SX2Hsnx61k4RESFppjmed-RniFkh7MpZ0x8zTlPpdKMcyZZ_Y5MOHOu4kaZ92TC6tpUTlr9gXws5RdjfBwxIZf7oW_7RQrQ0tQNuMhpWFHormhM5RpzwkLxCVnRPtLhGuluhsUSElRnfYBuSF2hTbrDTGdQUveFzjLcp3aLbERoC24_701yfrB_tndUnfw4_L63e1IFxU1d6eDgKrq51QxjCGE-55pzFMECSCtwzkIdXeQKtBJSYrB1MCpqHVELIVFuks_r3tvc_1liGfxNKgHbFjrsl8Vzy4RSlr0NSqNcbcwITtdgyH0pGaO_zekG8spz5h9N-9G0_296DHx6boYyeowZupDKS0o4yw23I-bW2N_U4uqNUt80zasT1TqbyoD_XrKQf3tjx6_6i9NDz-Txz-bbTPkj-QDyh56O</recordid><startdate>199511</startdate><enddate>199511</enddate><creator>Ribeiro, Mauro César Lambert de Brito</creator><creator>Petrere Junior, Miguel</creator><creator>Juras, Anastácio Affonso</creator><general>John Wiley & Sons, Ltd</general><general>Wiley</general><scope>BSCLL</scope><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7QH</scope><scope>7SN</scope><scope>7UA</scope><scope>C1K</scope><scope>F1W</scope><scope>H95</scope><scope>H97</scope><scope>L.G</scope></search><sort><creationdate>199511</creationdate><title>Ecological integrity and fisheries ecology of the Araguaia-Tocantins River Basin, Brazil</title><author>Ribeiro, Mauro César Lambert de Brito ; Petrere Junior, Miguel ; Juras, Anastácio Affonso</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c4168-5c9adf9b750efcccbb1511e2c7aa372eb0c8f9f14a54233ec78c64f55fe5223e3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1995</creationdate><topic>Animal, plant and microbial ecology</topic><topic>Applied ecology</topic><topic>Araguaia-Tocantins River Basin</topic><topic>Biological and medical sciences</topic><topic>Brazil</topic><topic>Conservation, protection and management of environment and wildlife</topic><topic>Environmental degradation: ecosystems survey and restoration</topic><topic>fisheries ecology</topic><topic>Freshwater</topic><topic>Fundamental and applied biological sciences. Psychology</topic><topic>Pisces</topic><topic>Tucuruí Dam</topic><toplevel>online_resources</toplevel><creatorcontrib>Ribeiro, Mauro César Lambert de Brito</creatorcontrib><creatorcontrib>Petrere Junior, Miguel</creatorcontrib><creatorcontrib>Juras, Anastácio Affonso</creatorcontrib><collection>Istex</collection><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Aqualine</collection><collection>Ecology Abstracts</collection><collection>Water Resources Abstracts</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 1: Biological Sciences & Living Resources</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 3: Aquatic Pollution & Environmental Quality</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><jtitle>Regulated rivers</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Ribeiro, Mauro César Lambert de Brito</au><au>Petrere Junior, Miguel</au><au>Juras, Anastácio Affonso</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Ecological integrity and fisheries ecology of the Araguaia-Tocantins River Basin, Brazil</atitle><jtitle>Regulated rivers</jtitle><addtitle>Regul. Rivers: Res. Mgmt</addtitle><date>1995-11</date><risdate>1995</risdate><volume>11</volume><issue>3-4</issue><spage>325</spage><epage>350</epage><pages>325-350</pages><issn>0886-9375</issn><eissn>1099-1646</eissn><abstract>An attempt is made to evaluate the present environmental impacts of the Tucuruí dam on the fisheries and ecological integrity of the Araguaia—Tocantins basin. Management and research needs to minimize the impacts from future hydroprojects and increased human activities in the basin are also addressed. The Tocantins and Araguaia fish fauna is not especially rich by Amazonian standards (about 300 species). Total yields are also rather low (about 8800 t/y) in a river stretch of about 2500 km and unique for being concentrated (90%) in the main channel. Fisheries are heavily dependent on migratory fish and may be severely damaged as a consequence of river regulation. Downstream from the Tucurui Dam important fisheries have been drastically reduced (70%), probably by recruitment failure, lower productivity and overfishing. Upstream from the dam, however, fisheries have benefited from the higher productivity of the artificial lake, although this has not compensated for the regional economic shortages. Management based on ‘basinwise’ catch statistics and fish migration research should take account of likely future disruptions of commercial fisheries by the synergistic effects of other planned impoundments, mining, deforestation and uncontrolled sport fisheries in the middle and upper basins.</abstract><cop>New York</cop><pub>John Wiley & Sons, Ltd</pub><doi>10.1002/rrr.3450110308</doi><tpages>26</tpages></addata></record> |
fulltext | fulltext |
identifier | ISSN: 0886-9375 |
ispartof | Regulated rivers, 1995-11, Vol.11 (3-4), p.325-350 |
issn | 0886-9375 1099-1646 |
language | eng |
recordid | cdi_proquest_miscellaneous_17024470 |
source | Access via Wiley Online Library |
subjects | Animal, plant and microbial ecology Applied ecology Araguaia-Tocantins River Basin Biological and medical sciences Brazil Conservation, protection and management of environment and wildlife Environmental degradation: ecosystems survey and restoration fisheries ecology Freshwater Fundamental and applied biological sciences. Psychology Pisces Tucuruí Dam |
title | Ecological integrity and fisheries ecology of the Araguaia-Tocantins River Basin, Brazil |
url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2024-12-23T08%3A40%3A29IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_cross&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Ecological%20integrity%20and%20fisheries%20ecology%20of%20the%20Araguaia-Tocantins%20River%20Basin,%20Brazil&rft.jtitle=Regulated%20rivers&rft.au=Ribeiro,%20Mauro%20C%C3%A9sar%20Lambert%20de%20Brito&rft.date=1995-11&rft.volume=11&rft.issue=3-4&rft.spage=325&rft.epage=350&rft.pages=325-350&rft.issn=0886-9375&rft.eissn=1099-1646&rft_id=info:doi/10.1002/rrr.3450110308&rft_dat=%3Cproquest_cross%3E17024470%3C/proquest_cross%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=13649866&rft_id=info:pmid/&rfr_iscdi=true |