Appendix E: Field Scientist Report 



Contamination:: No sources of contamination were observed in the area other than domestic 



effluents. 



GUATEMALA 



Puerto Barrios (07/09/92-07/10/92). No bivalves were found at this location. Because of the 



unsafe situation in Guatemala at the time of sampling, no alternative site was attempted. 



7th IMW Sampling Mission: Jamaica, Mexico and Cuba 



Sampling missions to Jamaica, Mexico and Cuba were divided into two phases. During 

 the first one, samples were collected from 2 sites in Jamaica. The second sampling mission 

 involved sampling 13 sites in Mexico and 1 in Cuba. At the end of each sampling trip, the frozen 

 samples were transferred directly to College Station, Texas. 



A total of 53 bivalve samples were collected between September 7 and October 21, 1992. 

 Samples were, in general, collected at the pre-selected sites. Samples in Jamaica were collected 

 near Bowden and Port Royal. In Mexico, sampling operations were mainly based in Merida, 

 Tampico, Mazatlan and Ensenada. Samples from Laguna de Terminos (Ciudad del Carmen), 

 Laguna del Ostion (Coatzacoalcos), Bahia Ventosa (Salina Cruz), Puerto Escondido and Puerto 

 Madero were collected using Merida as the base laboratory. Laguna Madre (Matamoros) and 

 Tampico were sampled from Tampico. Mazatlan was used as the base laboratory for the sampling 

 in Mazatlan and Altata-El Pabellon. Ensenada served as the base of operations for the sampling in 

 Punta Banderas (Tijuana), San Felipe and Ensenada. No bivalves were found in the area of 

 Cancun. Sampling at one site on the Pacific coast near Lazaro Cardenas, Punta Mangrove, has to 

 be canceled because of unsafe weather conditions. The area was reached by a powerful tropical 

 storm and most routes to Lazaro Cardenas were closed. 

 JAMAICA 



Bowden (09/10/92). This site is located about 60 km from Kingston, between Port Morant and 

 Bowden. Replicate samples (Isognomon alatus) were collected from the roots of mangroves at 2 

 stations. Station 1 and 2 are located 200 and 500 meters, respectively toward die center of the 

 small bay in front of Bowden Marina. Access to the sampling site is by car from Kingston and by 

 boat from Bowden marina. 



Contamination:: This site can be considered a clean area and is used for commercial oystering. No 

 obvious sources of contaminants other than a limited boating activities were observed. 

 Port Royal (09/10/92). Port Royal is located about 15-20 km from downtown Kingston. At this 

 site, replicate samples (Isognomon alatus) attached to the roots of the mangroves were collected at 

 2 stations. The stations face Kingston Harbor between the International Airport and Port Royal. 

 Access to the sampling site is by car from Kingston and by boat from Port Royal. 

 Contamination:: Domestic effluents. Commercial fishing. Airport. Industries. Main navigational 

 access to Kingston. 



18 



