Striped weakfish ( Cynoscion guatucupa): A biomonitor of organochlorine pesticides in estuarine and near-coastal zones

• Published in: Marine pollution bulletin Vol. 52; no. 1; pp. 74 - 80
• Main Authors: Lanfranchi, A.L., Menone, M.L., Miglioranza, K.S.B., Janiot, L.J., Aizpún, J.E., Moreno, V.J.
• Format: Journal Article
• Language: English
• Published: Oxford Elsevier Ltd 2006; Elsevier
• Subjects: Agnatha. Pisces; Animal Structures - chemistry; Animal, plant and microbial ecology; Animals; Applied ecology; Biological and medical sciences; Biomagnification; Body Size; Brackish; Cynoscion guatucupa; Ecotoxicology, biological effects of pollution; Environmental Monitoring - methods; Estuaries; Female; Fundamental and applied biological sciences. Psychology; Gastrointestinal Contents - chemistry; Geologic Sediments - analysis; Hydrocarbons, Chlorinated - analysis; Lipids - analysis; Male; Marine; Marine and brackish environment; Muscles - chemistry; Organochlorine pesticides; Perciformes - metabolism; Pesticide Residues - analysis; Seawater - analysis; Size-related bioaccumulation; Vertebrates: general zoology, morphology, phylogeny, systematics, cytogenetics, geographical distribution; Water Pollution, Chemical - analysis; South America; ASW, South America; ASW, Argentina, Buenos Aires, Blanca Bay; Argentina, Buenos Aires, Blanca Bay; Estuaries; Size-related bioaccumulation; Cynoscion guatucupa; Organochlorine pesticides; Biomagnification; Brackish water environment; Pesticides; Biological monitoring; Coastal zone; Marine environment; Aquatic environment; Vertebrata; Organochlorine compounds; Pisces; Chlorine Organic compounds; Water pollution; Biological accumulation; Teleostei; Organic compounds; Osteichthyes
• ISSN: 0025-326X; 1879-3363
• DOI: 10.1016/j.marpolbul.2005.08.008

The general goal of this study was to investigate the role of Cynoscion guatucupa as a biomonitor of organochlorine pesticides (OCP) contamination in Bahía Blanca estuary.Thus, we evaluated whether or not OCP fish distribution pattern reflects the OCP land sources, and if size-related bioaccumulation and biomagnification of these contaminants does occur by comparing different tissues of juvenile and adults of C. guatucupa (Cuvier, 1830). Size-related bioaccumulation in C. guatucupa was observed and it was more important for the more lipophilic and biomagnifying OCP, being determined over time by diet influence. Endosulfan sulfate, chlordanes, HCH isomers and DDT compounds predominated in tissues and ingested food of C. guatucupa, being α-chlordane, heptachlor and p, p′-DDE highly bioaccumulated and biomagnificated. Our findings also showed that male adults of C. guatucupa are biomonitors of OCP pollution so we propose this species for further investigations in other coastal zones of South America.