Appendix E: Field Scientist Report 



Concepci6n (04/20/92). The sampling site was located between the Bio-Bio river and San 



Vicente Bay. Duplicate samples (Perumytilus purpuratus) were collected from 3 different stations 



within this area. Station #1 was located at the mouth of the Bio-Bio river. Stations #2 and #3 



were located about 500 and 1000 meters from station #1, respectively. Access to the site is by car. 



Contamination:: Domestic and industrial effluents from Concepci6n are discharged through the 



river. Paper mills are located along the river. Chemical Industries. Shipping/receiving of oil. 



PERU 



Callao (04/24/92). Two samples were collected by hand from piers located in Callao near La 



Punta. Mussels were small and reduced in number. 



Contamination:: Domestic and industrial effluents. Navy and commercial ports. Cholera. 



Paracas (04/25/92). Two different species of mussels were collected from 2 stations in Paracas' 



Peninsula near Pisco. The stations, about 500 meters apart, are located in front of the El 



Candelabra formation. 



Contamination:: No sources of contamination were observed. Cholera. 



ECUADOR 



Guayaquil (04/29/92). Duplicate samples (Mytela guayanensis) were collected from the 



mangroves at 2 stations located in Estero Salado. Stations are located about 800 meters apart. 



Samples were collected by hand during low tide. Access to the site is by car. 



Contamination:: Domestic and industrial effluents. Technical DDT is sold in the street. 



Chone River (Bahfa de Caraquez) (04/30/92). This area, which replaced Esmeralda at the 



suggestion of local scientists, is an important shrimp production region. Duplicate (Prototaca sp.) 



and a single {Anadara tuberculosa) samples were collected at 1 station in this area. 



Contamination:: No sources of contamination were observed in the area. 



6th IMW Sampling Mission: El Salvador, Belize, Honduras and Guatemala 



Sixteen bivalve samples from 2 sites in El Salvador, 1 site in Belize and 2 sites in 

 Honduras were collected between June 28 and July 11, 1992. Samples were, in general, collected 

 at the pre-selected sites. Samples in El Salvador were collected near Puerto La Union on the Gulf 

 of Fonseca and Puerto La Libertad on the Pacific coast. La Libertad replaced a requested second 

 sampling site in the Gulf of Fonseca area from El Salvador. A second sampling site on the Gulf of 

 Fonseca (San Lorenzo) was accessed from Honduras. In that country, La Ceiba replaced Puerto 

 Trujillo on the Caribbean coast. Direct access to Puerto Trujillo was difficult. In Belize samples 

 were collected in front of Belize City. In Guatemala, no bivalves were found in Puerto Barrios. 

 Because of the lack of a local contact in Guatemala and die very unsafe conditions at the time of 

 sampling, no alternative sampling site was attempted. 



Sampling details are similar to the previous missions. 



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