Long-term variation of Ecotoxicological quality of sediment in an estuarine system with industrial and port activities

IF 4.9 3区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Marine pollution bulletin Pub Date : 2025-03-25 DOI:10.1016/j.marpolbul.2025.117854

Caroline Cavalcanti da Silva , Bruno Varella Motta da Costa , Cristiane Maria Varela de Araújo , Lília Pereira de Souza Santos

{"title":"Long-term variation of Ecotoxicological quality of sediment in an estuarine system with industrial and port activities","authors":"Caroline Cavalcanti da Silva , Bruno Varella Motta da Costa , Cristiane Maria Varela de Araújo , Lília Pereira de Souza Santos","doi":"10.1016/j.marpolbul.2025.117854","DOIUrl":null,"url":null,"abstract":"<div><div>This study assessed the long-term evolution, between 2003 and 2023, of sediment quality near the Industrial Port Complex of Suape in Northeast Brazil, using toxicity bioassays with the epibenthic copepod <em>Tisbe biminiensis</em>. Primary and secondary data were obtained, in addition to metal concentration data. Muddy sediment had a low impact on female copepod mortality but caused a reduction in fecundity. Between 2003 and 2008, there was an improvement in fecundity, but from 2009 onwards, sub-lethal toxicity returned to previous levels. From 2016 to 2023, toxic effects upon nauplii were observed, with a significant increase in mortality over time, especially during the rainy season. Regarding metal analysis, it was observed that most levels remained within acceptable limits. These results indicate that other contaminants must be involved in toxicity and need to be evaluated. Long-term studies are therefore recommended to improve the monitoring of sediment, insufficiently addressed by current Brazilian environmental legislation.</div></div>","PeriodicalId":18215,"journal":{"name":"Marine pollution bulletin","volume":"215 ","pages":"Article 117854"},"PeriodicalIF":4.9000,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Marine pollution bulletin","FirstCategoryId":"93","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0025326X25003297","RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENVIRONMENTAL SCIENCES","Score":null,"Total":0}

引用次数: 0

Abstract

This study assessed the long-term evolution, between 2003 and 2023, of sediment quality near the Industrial Port Complex of Suape in Northeast Brazil, using toxicity bioassays with the epibenthic copepod Tisbe biminiensis. Primary and secondary data were obtained, in addition to metal concentration data. Muddy sediment had a low impact on female copepod mortality but caused a reduction in fecundity. Between 2003 and 2008, there was an improvement in fecundity, but from 2009 onwards, sub-lethal toxicity returned to previous levels. From 2016 to 2023, toxic effects upon nauplii were observed, with a significant increase in mortality over time, especially during the rainy season. Regarding metal analysis, it was observed that most levels remained within acceptable limits. These results indicate that other contaminants must be involved in toxicity and need to be evaluated. Long-term studies are therefore recommended to improve the monitoring of sediment, insufficiently addressed by current Brazilian environmental legislation.

查看原文本刊更多论文

工业和港口活动对河口系统沉积物生态毒理质量的长期影响

本研究利用底栖桡足动物Tisbe biminiensis的毒性生物测定方法，评估了巴西东北部Suape工业港综合体附近沉积物质量在2003年至2023年间的长期演变。除了金属浓度数据外，还获得了一次和二次数据。浑浊沉积物对雌性桡足动物的死亡率影响不大，但会降低繁殖力。在2003年至2008年期间，繁殖力有所改善，但从2009年起，亚致死毒性恢复到以前的水平。从2016年到2023年，观察到对nauplii的毒性作用，随着时间的推移，死亡率显着增加，特别是在雨季。关于金属分析，有人指出，大多数水平仍在可接受的限度内。这些结果表明，其他污染物必须参与毒性，需要进行评估。因此，建议进行长期研究，以改善对沉积物的监测，巴西目前的环境立法没有充分解决这一问题。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Marine pollution bulletin 环境科学-海洋与淡水生物学

CiteScore

10.20

自引率

15.50%

发文量

1077

审稿时长

68 days

期刊介绍： Marine Pollution Bulletin is concerned with the rational use of maritime and marine resources in estuaries, the seas and oceans, as well as with documenting marine pollution and introducing new forms of measurement and analysis. A wide range of topics are discussed as news, comment, reviews and research reports, not only on effluent disposal and pollution control, but also on the management, economic aspects and protection of the marine environment in general.