Accession Number : ADA192119

Title :   A Portable Environment Test System: A Field Assessment of Organotin Leachates--Test and Evaluation.

Descriptive Note : Final rept. May-Dec 86,

Corporate Author : NAVAL OCEAN SYSTEMS CENTER SAN DIEGO CA

Personal Author(s) : Salazar, S M ; Salazar, M H ; Davidson, B M ; Stang, P M ; Meyers-Schulte, K

PDF Url : ADA192119

Report Date : Nov 1987

Pagination or Media Count : 36

Abstract : A Portable Environmental Test System (PETS) was evaluated with tributyltin (TBT) antifouling leachates in San Diego Bay over a 7-month period. Overall mean test concentrations were 0.065, 0.077 and 0.193 micro gram per liter TBT. Treatments were tested against ambient seawater controls with three replicates of each using 340-l tanks. Unfiltered seawater was pumped over a TBT coated panel, creating a TBT leachate diluted with ambient seawater in dilution/mixing units and distributed to test tanks. The following parameters were measured: abundance and species diversity on fouling panels; condition and gonad indices, and bioaccumulation in adult mussels (Mytilus edulis); condition indices and bioaccumulation in clams (Macoma nasuta); and growth rates in juvenile mussels and juvenile oysters. At all TBT concentrations, adult mussels and clams accumulated TBT and juvenile mussel growth was reduced. However, growth of juvenile mussels and oysters in PETS results suggest test animals in PETS tanks may have been under stress from the test system.

Descriptors :   *ANTIFOULING, *COATINGS, *LEACHING, *TIN COMPOUNDS, ADULTS, ANIMALS, CONTROL, DILUTION, DISTRIBUTION, ENVIRONMENTAL TESTS, FIELD TESTS, FOULING, GROWTH(GENERAL), INDEXES, LIQUIDS, MIXING, MUSSELS, OYSTERS, PANELS, RATES, SAN DIEGO BAY, SEA WATER, TANKS(CONTAINERS), TEST EQUIPMENT

Subject Categories : Water Pollution and Control

Distribution Statement : APPROVED FOR PUBLIC RELEASE