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Vol. 53 - Alaska Resources Library and Information Services

Vol. 53 - Alaska Resources Library and Information Services

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of oil rapidly over the surface (Leendertse <strong>and</strong> Liu 1981) <strong>and</strong> only<br />

to a depth of 20 m to derive area affected.<br />

4. The model of Sonntag et al. (1980) did not consider any direct<br />

toxic effects of oil to benthic crab <strong>and</strong> shrimp but only indirect<br />

effects through losses of food.<br />

Curl <strong>and</strong> Manen (1982) discuss the<br />

possibility of some adult mortality in heavily impacted areas, but<br />

neither model considers toxicity of oil-contaminated sediments to<br />

developing eggs <strong>and</strong> embryos of benthic crustaceans.<br />

Armstrong et<br />

al. (1983) reviewed literature on oil impact <strong>and</strong> recovery of marine<br />

benthic communities <strong>and</strong> highlighted evidence of great perturbations<br />

to crustacean populations exposed to oil spills (Le Moal <strong>and</strong><br />

Quillien-Monot 1981; Krebs <strong>and</strong> Burns 1978).<br />

Maurin (1981) reported<br />

that a year following the AMOCO CADIZ spill there were reduced crab<br />

catches, implying mortality of benthic stages, <strong>and</strong> fewer ovigerous<br />

female lobster suggesting effects on reproduction.<br />

We could find<br />

no literature reporting systematic studies of oil toxicity to early<br />

developmental stages of crustacean eggs, yet if hydrocarbons pass<br />

egg membranes <strong>and</strong> are sequestered in the lipid-rich yolk then the<br />

risk to rapidly cleaving embryos is probably high.<br />

Armstrong <strong>and</strong><br />

Millemann (1974) found that embryos of the mussel Mytilus edulis<br />

are most sensitive to an insecticide during early cleavage stages,<br />

<strong>and</strong> they reviewed literature on protein <strong>and</strong> spindle apparatus<br />

poisons that affect both nucleic acid synthesis <strong>and</strong> normal blastomere<br />

division [it is possible that certain oil hydrocarbons act in<br />

a similar manner <strong>and</strong> Malins (1977) reviews literature on toxic derivatives<br />

of hydrocarbon metabolism that affect DNA structures <strong>and</strong><br />

813

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