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Souza-Santos LP, Carneiro YMM, da Silva ASX. Weekly variation of seawater ecotoxicity on marine sandy beaches in relation to coliform densities. MARINE POLLUTION BULLETIN 2025; 213:117694. [PMID: 39970796 DOI: 10.1016/j.marpolbul.2025.117694] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2024] [Revised: 11/18/2024] [Accepted: 02/12/2025] [Indexed: 02/21/2025]
Abstract
The hypothesis tested here is a direct relationship between microbiological and ecotoxicological quality on beaches. Seawater was collected weekly for one year in Northeast Brazil. The quantification of thermotolerant coliforms was obtained using the multiple tube technique. The ecotoxicological bioassay utilized the nauplii of the copepod Tisbe biminiensis. The percentage of development and survival was estimated after 72 h. Rainfall, salinity, tidal height and amplitude were analyzed. The results didn't demonstrate a relationship between the density of coliforms and lethal effects, thus rejecting the proposed hypothesis. This result suggested that sewage contamination passed through riverine plumes before arrives the beaches and coliforms died in this long way. Higher toxicity was observed during dry periods, probably due to high contaminant concentration due to lower river discharge. Other hypotheses are proposed to explain the data as higher rainfall observed in 2022 and the negative effect of population use.
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Affiliation(s)
- Lília P Souza-Santos
- Laboratório de Cultivo e Ecotoxicologia, Departamento de Oceanografia, Universidade Federal de Pernambuco, Av. Arquitetura s/n, Cidade Universitária, 50740-550 Recife, Pernambuco, Brazil.
| | - Yasmin M M Carneiro
- Laboratório de Cultivo e Ecotoxicologia, Departamento de Oceanografia, Universidade Federal de Pernambuco, Av. Arquitetura s/n, Cidade Universitária, 50740-550 Recife, Pernambuco, Brazil
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Araújo C, Carneiro P, Fidelis L, Nascimento B, Antunes M, Viana D, Oliveira P, Torres R, Hazin F, Adam M. Comparative genomic damage among three shark species with different habits: Sublethal impacts of human origin in a protected island environment in the South Atlantic. MARINE POLLUTION BULLETIN 2023; 191:114924. [PMID: 37058835 DOI: 10.1016/j.marpolbul.2023.114924] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Revised: 02/26/2023] [Accepted: 04/06/2023] [Indexed: 05/13/2023]
Abstract
Elasmobranchs can bioaccumulate and biomagnify pollutants. However, few studies are directed to the effects of pollutants on the health of these animals, and in most cases, are limited to the analysis of biochemical markers. Thus, the incidence of genomic damage among shark species inhabiting a protected ocean island in the South Atlantic was investigated in association with the analysis of pollutants in seawater sample. High levels of genomic damage were identified, especially in Negaprion brevirostris and Galeocerdo cuvier, in addition to interspecific variations that may be related to characteristics such as animal size, metabolism and habits. High concentrations of Surfactants were observed in seawater sample, in addition to low concentrations of Cadmium, Lead, Copper, Chromium, Zinc, Manganese, and Mercury. The results evidenced the potential of shark species as a bioindicator of environmental quality and allowed assessing the anthropic impact on the archipelago, which currently drives its economy through tourism.
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Affiliation(s)
- Camila Araújo
- Evolutionary and Environmental Genomics Laboratory, Department of Zoology, Center for Biological Sciences, Federal University of Pernambuco, Avenida Professor Moraes Rego, Cidade Universitária, 50.760-420 Recife, Pernambuco, Brazil; Laboratory of Fisheries Oceanography, Department of Fisheries and Aquaculture, Federal Rural University of Pernambuco, Rua Dom Manuel de Medeiros, Dois Irmãos, 52.171-030 Recife, Pernambuco, Brazil.
| | - Pedro Carneiro
- Laboratory of Fisheries Oceanography, Department of Fisheries and Aquaculture, Federal Rural University of Pernambuco, Rua Dom Manuel de Medeiros, Dois Irmãos, 52.171-030 Recife, Pernambuco, Brazil
| | - Leonardo Fidelis
- Laboratory of Fisheries Oceanography, Department of Fisheries and Aquaculture, Federal Rural University of Pernambuco, Rua Dom Manuel de Medeiros, Dois Irmãos, 52.171-030 Recife, Pernambuco, Brazil
| | - Bruna Nascimento
- Evolutionary and Environmental Genomics Laboratory, Department of Zoology, Center for Biological Sciences, Federal University of Pernambuco, Avenida Professor Moraes Rego, Cidade Universitária, 50.760-420 Recife, Pernambuco, Brazil; Laboratory of Fisheries Oceanography, Department of Fisheries and Aquaculture, Federal Rural University of Pernambuco, Rua Dom Manuel de Medeiros, Dois Irmãos, 52.171-030 Recife, Pernambuco, Brazil
| | - Marina Antunes
- Evolutionary and Environmental Genomics Laboratory, Department of Zoology, Center for Biological Sciences, Federal University of Pernambuco, Avenida Professor Moraes Rego, Cidade Universitária, 50.760-420 Recife, Pernambuco, Brazil; Laboratory of Fisheries Oceanography, Department of Fisheries and Aquaculture, Federal Rural University of Pernambuco, Rua Dom Manuel de Medeiros, Dois Irmãos, 52.171-030 Recife, Pernambuco, Brazil
| | - Danielle Viana
- Laboratory of Fisheries Oceanography, Department of Fisheries and Aquaculture, Federal Rural University of Pernambuco, Rua Dom Manuel de Medeiros, Dois Irmãos, 52.171-030 Recife, Pernambuco, Brazil
| | - Paulo Oliveira
- Laboratory of Fisheries Oceanography, Department of Fisheries and Aquaculture, Federal Rural University of Pernambuco, Rua Dom Manuel de Medeiros, Dois Irmãos, 52.171-030 Recife, Pernambuco, Brazil
| | - Rodrigo Torres
- Evolutionary and Environmental Genomics Laboratory, Department of Zoology, Center for Biological Sciences, Federal University of Pernambuco, Avenida Professor Moraes Rego, Cidade Universitária, 50.760-420 Recife, Pernambuco, Brazil.
| | - Fábio Hazin
- Laboratory of Fisheries Oceanography, Department of Fisheries and Aquaculture, Federal Rural University of Pernambuco, Rua Dom Manuel de Medeiros, Dois Irmãos, 52.171-030 Recife, Pernambuco, Brazil
| | - Mônica Adam
- Evolutionary and Environmental Genomics Laboratory, Department of Zoology, Center for Biological Sciences, Federal University of Pernambuco, Avenida Professor Moraes Rego, Cidade Universitária, 50.760-420 Recife, Pernambuco, Brazil
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