| dc.creator | Lane, Oksana P. | |
| dc.creator | Arendt, Wayne J. | |
| dc.creator | Tórrez, Marvin A. | |
| dc.creator | Gámez Castellón, Juan Cruz | |
| dc.date | 2013-08 | |
| dc.date.accessioned | 2023-03-22T17:58:09Z | |
| dc.date.available | 2023-03-22T17:58:09Z | |
| dc.identifier | http://repositorio.uca.edu.ni/2831/1/Pilot_Assessment...Lane_et.al%20_2013.pdf | |
| dc.identifier | Lane, Oksana P. and Arendt, Wayne J. and Tórrez, Marvin A. and Gámez Castellón, Juan Cruz (2013) Pilot Assessment of Mercury Exposure in Selected Biota from the Lowlands of Nicaragua = Evaluación Piloto de Exposición al Mercurio en Biota Selecta de las Tierras Bajas de Nicaragua. Mesoamericana, 17 (1). pp. 19-28. | |
| dc.identifier.uri | https://hdl.handle.net/20.500.12032/77268 | |
| dc.description | Abstract. Methylmercury, a potent neurotoxin, can damage health of humans and wildlife. In 2012, we collected 73
blood and feather samples from birds among diverse foraging guilds to assess mercury exposure in wetland habitats
associated with Lakes Managua and Nicaragua. Blood levels (0.72 parts per million) in a piscivorous Neotropic Cormorant Phalacrocorax brasilianus from Lake Managua exceeded the United States Environmental Protection Agency recommended screening value for fish consumption of 0.3 ppm. Cormorants should be considered as an upper trophic level bioindicator of aquatic Hg toxicity. Of all the wetland invectivorous birds sampled, Northern Jaçana Jacana spinosa had the highest blood mercury concentrations (0.42 ppm) and we consider it as a bioindicator of wetland contaminants. Four of five species exhibiting the highest levels of blood mercury were piscivores and ground foraging invertivores. Several neotropical migrants exceeded feather concentration of >3.0 ppm and are considered at greater risk to reduced reproductive success.--
Resumen. Los efectos del metilmercurio (MeHg) en seres humanos y vida silvestre a nivel neurológico y reproductivo
ha sido poco documentado en el neotrópico. En Febrero de 2012 se colectaron 73 muestras de sangre y plumas en 92
aves de distintos gremios alimenticios (piscívoros, omnívoros, insectívoros). Se encontraron niveles mayores (0.3 partes por millón) a los permitidos por la Agencia para la Protección Ambiental en Norteamérica en Phalacrocorax brasilianus (0.72 ppm). Esta ave puede considerarse un buen bioindicador del medio ambiente. De todas las especies muestreadas las concentraciones de mercurio más altas fueron de Jacana spinosa (0.42 ppm). Aves paserinas capturadas que registraron niveles de mercurio en los rectrices >3.0 ppm pueden mostrar bajo éxito reproductivo. | |
| dc.format | text | |
| dc.language | es | |
| dc.relation | http://repositorio.uca.edu.ni/2831/ | |
| dc.rights | cc_by_nc_nd | |
| dc.subject | 363 Otros problemas y servicios sociales | |
| dc.subject | 577 Ecología | |
| dc.title | Pilot Assessment of Mercury Exposure in Selected Biota from the Lowlands of Nicaragua = Evaluación Piloto de Exposición al Mercurio en Biota Selecta de las Tierras Bajas de Nicaragua | |
| dc.type | Article | |
| dc.type | PeerReviewed | |
