Appendix E: Field Scientist Report 



100 km from the city of Bahfa Blanca. Mussels (Brachiodontes rodrigezii) were small. Only one 



duplicate sample was collected. Access to the site is by car from Bahfa Blanca. 



Contamination:: No sources of contamination were observed. 



Arroyo Parejas (1 1/26/91). This is the second site sampled in the Blanca Bay area. Arroyo 



Parejas is located midway into the bay near Puerto Belgrano, a navy base. Distances between 



Arroyo Parejas and Bahfa Blanca is about 35 km and between Arroyo Parejas and Pehuen-co is 



about 70 km. Because of the small size of the mussels (Brachiodontes rodrigezii), only one 



duplicate sample was collected by hand. Access to the site is by car from Bahfa Blanca. 



Contamination:: Navy base. 



Camarones Bay (1 1/27/91). Camarones is located 320 km to the south of Puerto Madryn. 



Duplicate samples (Aulacomya ater) were collected from 3 stations. A sample of a co-existing 



mussel (Mytilus platensis) was also collected at one station to compare contaminant concentrations. 



Access to the site is by car from Puerto Madryn. 



Contamination:: No sources of contamination were observed. 



Rawson (1 1/27/91). This site is located about 80 km to the south of Puerto Madryn and on the 



margins of the Chubut river. Samples (Mytilus platensis) were collected from 3 stations. Because 



of the small size of the mussels, only single samples at each station were collected. 



Contamination:: Chubut river. 



Ushuaia (1 1/28/91). Three duplicate samples (Mytilus edulis chilensis) were collected from 3 



stations located in front of the city of Ushuaia. This sampling site is located within city limits. 



Access to the area is by car. 



Contamination:: Domestic and industrial effluents. Navy port. 



Rio Gallegos (1 1/29/91). Samples were collected from 3 stations in Punta Loyola, located about 



40 km from Rio Gallegos. Access to the site is by car. 



Contamination:: No sources of contamination were observed. 



2nd IMW Sampling Mission: Panama 



Bivalve samples from Panama were collected between December 17 and December 19, 

 1991 at 3 pre-selected locations. A fourth site, Bocas del Toro, was left to be accessed from Costa 

 Rica. As with the previous sampling mission, duplicate samples were collected from 1 to 3 

 stations within each site; total wet weight tissue per station was between 200 to 300 grams and 

 photographs of the area were taken to document the area for further sampling efforts. Shell 

 samples from each station were kept for a later confirmation/identification of the species. Frozen 

 samples were transferred to San Jose, Costa Rica. 

 PANAMA 



Portobelo (12/18/91). Portobelo is located about 1 10 km from Panama city on the Caribbean 

 Sea. A "cayuco" (a one piece canoe made out of a tree trunk) was rented from native fishermen to 



