Scientists have called for urgent funding for recovery measures for species affected by a catastrophic algal bloom off South Australia as images emerged of a dead dolphin that washed up on a beach in Adelaide.

The call comes in response to an Albanese government announcement that it would fast-track an expert assessment of the impact of the crisis on marine life, similar to a step taken after the black summer bushfire crisis.

The South Australian National Parks and Wildlife Service collected the deceased adult common dolphin on Wednesday morning from Henley beach, with a necropsy to determine the cause of death – including any potential links to the toxic algal bloom that has killed tens of thousands of marine animals.

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But experts have told Guardian Australia that while the effects of the algae were not fully understood, mammals were not believed to be at immediate risk of death from the algal bloom because they do not have gills.