Acute Sensitivity to Nitokra sp Benthic Copepod to Potassium Dichromate and Ammonia Chloride

Sousa, Eduinetty Ceci Pereira Moreira de; Zaroni, Leticia Pires; Filho, Taki; Marconato, L.; Kirschbaum, Aline Alves; Gasparro, Marica

doi:10.5132/jbse.2012.01.011

Cited by 12 publications

(5 citation statements)

References 24 publications

(27 reference statements)

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The culture of Nitocra sp. is monospecific and was established in 1998 from organisms collected on the sediment surface from the intertidal zone in the Cananéia Estuary in the southern coast of the state of São Paulo (Lotufo & Abessa, 2002;Sousa et al, 2012). Nitocra sp.…”

Section: Nitocra Sp -Culture and Testing Conditionsmentioning

confidence: 99%

“…Another tropical and representative species is Nitocra sp., a harpacticoid copepod that inhabits region between mangrove swamps, and its culture was implemented in 1998 from organisms collected on sediment surface from intertidal zone of Spartina sp. banks in Cananéia Estuary, southern coast of the state of São Paulo (Lotufo & Abessa, 2002;Sousa et al, 2012), and it was chosen for being easy to handle and well established as a test organism.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Toxicity responses for marine invertebrate species of brazilian occurrence

Artal

Santos

Dornelas

et al. 2019

Ecotoxicol. Environ. Contam.

View full text Add to dashboard Cite

To assess the risk of chemical contaminants it is desirable to derive toxicity data from representative species of the ecosystem intended to be protected. However, species of occurrence in Brazil are rarely used in toxicity tests, especially for marine and estuarine environments. To address this need, we evaluated the toxicity of different toxicants such as metals and organic compounds to marine invertebrates of Brazilian occurrence, representative from tropical regions and cultivated in laboratory. We used two epibenthic test species of Brazilian occurrence, Parhyale hawaiensis, a deposit feeding amphipod and Nitocra sp, a harpacticoid copepod. Nitocra sp. was more sensitive than other copepods to zinc, and more sensitive than P. hawaiensis to disperse dyes. Sensitivity species distribution revealed that Nitocra sp. and P. hawaiensis were similarly responsive as other marine species to zinc, and Nitocra sp. was among of the most sensitive species. Moreover, our study highlighted that organic compounds are poorly explored in toxicity evaluation with marine organisms; therefore, more studies need to be carried out to assess the toxicity of different substances using marine and estuarine organisms representative of tropical ecosystems.

show abstract

Section: Nitocra Sp -Culture and Testing Conditionsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Toxicity responses for marine invertebrate species of brazilian occurrence

Artal

Santos

Dornelas

et al. 2019

Ecotoxicol. Environ. Contam.

View full text Add to dashboard Cite

show abstract

“…The amphipods Tiburonella viscana, Leptocheirus plumulosus, Grandidierella bonnieroides, Hyale nigra and H. youngi have been used to assess the acute toxicity of whole sediment samples (e.g., Abessa et al, 2005;ABNT, 2016;Buruaem et al, 2013;Dewitt et al, 1996;Maranho et al, 2009;Melo and Nipper, 2007;Molisani et al, 2013;Nilin et al, 2013), as well as the tannaidacea Kalliapseudes schubartii (e.g., Brendolan, 2004;Perina, 2009). In the same way, meiobenthic copepods Nitocra sp (e.g., Lotufo and Abessa, 2002;Nilin et al, 2013;Sousa et al, 2012) and Tisbe biminiensis (e.g., Araújo-Castro et al, 2009;Lavorante et al, 2013;Oliveira et al, 2014) have been used to test the chronic toxicity of sediments. However, given the continental scale of Brazilian coast, which presents different environments and high diversity of species, it is necessary to standardize new methods and organisms to be used as model in sediment toxicity tests.…”

Section: Introductionmentioning

confidence: 99%

Developing a protocol whole sediment toxicity testing with the polychaete Armandia agilis

Saes

Moreira

Davanso

et al. 2024

Ecotoxicol. Environ. Contam.

View full text Add to dashboard Cite

Sediments constitute a key compartment of coastal and marine ecosystems. They also constitute the ultimate sink for most of the chemical substances and a source of contamination to the benthic fauna. In this study, we aimed to develop a protocol for acute toxicity tests using the polychaete Armandia agilis as a model species. To achieve that, we evaluated the species tolerance to the salinity of overlying water (in the presence and absence of sediment), the tolerance to sediments with different particle sizes, the sensitivity to reference substances (potassium dichromate-K 2 Cr 2 O 7 , zinc sulfate-ZnSO 4 ; and Sodium Dodecyl Sulfate-SDS), and the responses to clean and contaminated sediments. The species survives in several latitudes on the American coast (North Carolina, Gulf of Mexico, and South-Southeast of Brazil) in different haline conditions (above 20) in typically sandy textures. In Ilhabela (SE Brazil), the species was available throughout the year. The LC 50-48h values calculated to the K 2 Cr 2 O 7 , ZnSO 4 , and SDS, were 20.94 (33.38-14.04); 4.25 (7.66-2.98); 4.90 (6.59-3.84) mg L-1 respectively; thus A. agilis can be considered as sensitive as other benthic organisms. The responses of A. agilis to environmental sediments were similar to those exhibited by the amphipod Tiburonella viscana, showing that this polychaete is responsive to contaminated sediments. Armandia agilis can be considered a promising organism to be used in sediment toxicity tests.

show abstract

“…Entre essas características destacam-se o enorme potencial para cultivo em condições laboratoriais, o seu caráter generalista quanto à granulometria do sedimento, constância na sua sensibilidade quanto à substância de referência (Dodecil Sulfato de Sódio-DSS), íntima associação com o ambiente sedimentar, alta abundância e curto ciclo de vida e importância ecológicas elevada. Além disso, representantes com estágios de vida variados podem ser obtidos de cultivos a qualquer época do ano, são fáceis de cultivar em laboratório e requerem espaço mínimo e poucos equipamentos para realização dos testes (Ferraz et al 2010;Furley et al 2010;Zaroni et al 2010;Sousa et al 2012).…”

Section: Introductionunclassified

Sensibilidade do copépode Nitokra sp. à exposição ao agregado óleo-material particulado em suspensão (OSA)

Silva¹,

Guimarães²,

de-Oliveira³

et al. 2018

Geochim. Bras.

View full text Add to dashboard Cite

Em um derramamento de petróleo em zonas de manguezal existe grande possibilidade da agregação do óleo com o material particulado em suspensão, o que poderá determinar o sedimento de fundo como destino final do OSA (Agregado Óleo-Material Particulado em Suspensão) representando um grande risco aos organismos bentônicos. Testes de ecotoxicidade com esses organismos têm sido amplamente utilizados como uma das formas mais precisas de monitoramento biológico aos impactos antrópicos nesse ecossistema. O presente trabalho avalia a ecotoxicidade da exposição ao OSA em sedimentos de manguezal, coletados ao longo do estuário do rio Pardo, município de Canavieiras, Bahia, por meio de ensaios em escala piloto (microescala). O procedimento foi realizado através dos testes toxicológicos de exposição aguda para determinar a CL 50 (concentração letal 50%) utilizando o copépode bentônico Nitokra sp. Para efeito de comparação, foram realizados dois cenários, o primeiro considera a fase aquosa do protocolo de simulação de formação do OSA em microescala, e o segundo, o elutriato a partir de sedimento e óleo homogeneizado em diferentes frações. Foi verificado que a formação do OSA tem potencial muito menos tóxico (CL 50 70,71) em relação ao elutriato formado a partir dos percentuais de sedimento homogeneizado com óleo cru (CL 50 5,59) confirmando seu potencial como efetiva forma de limpeza para tratamento de óleo na água.

show abstract

Acute Sensitivity to Nitokra sp Benthic Copepod to Potassium Dichromate and Ammonia Chloride

Cited by 12 publications

References 24 publications

Toxicity responses for marine invertebrate species of brazilian occurrence

Toxicity responses for marine invertebrate species of brazilian occurrence

Developing a protocol whole sediment toxicity testing with the polychaete Armandia agilis

Sensibilidade do copépode Nitokra sp. à exposição ao agregado óleo-material particulado em suspensão (OSA)

Contact Info

Product

Resources

About