Mortality and quantitative aspects of storage cell utilization in mussels, Mytilus edulis, following exposure to diesel oil hydrocarbons

These investigations assess the consequences of a resistance strategy for the nutrient storage matrix in mussels involving the reallocation of reserves previously directed towards gamete production, on exposure to low-level, chronic diesel oil hydrocarbons using stereological techniques. In addition, the extent to which survival is dependent upon the levels of these reserves at the moment of hydrocarbon insult is also investigated. The results indicate that hydrocarbon exposure leads to a reduction in the levels of storage reserves, an increase in gamete atresia (degeneration) and resorption but, as a result of this, the storage pool is partially replenished and, in the short term, the animals are better able to tolerate the hydrocarbon insult.