Did algal toxins cause monk seal mortality?

@article{Hernndez1998DidAT,
  title={Did algal toxins cause monk seal mortality?},
  author={Mauro Hern{\'a}ndez and Ian Robinson and Alex Aguilar and Luis Mariano Gonz{\'a}lez and Luis Felipe L{\'o}pez-Jurado and Mar{\'i}a I. Reyero and Emiliano Cacho and Jos{\'e} Mariano Franco and Victoria L{\'o}pez-Rodas and Eduardo Costas},
  journal={Nature},
  year={1998},
  volume={393},
  pages={28-29}
}
The population of Mediterranean monk seals off the coast of the western Sahara has recently suffered a sudden mortality. A morbillivirus was isolated post-mortem from the tissues of three seals, and it has been proposed that the virus was the agent responsible. This conclusion is called into question by epidemiological, clinical, pathological and toxicological considerations. We suggest here that intoxication by algal toxins is a more likely cause of the deaths. 
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References

Morbillivirus in monk seal mass mortality
TLDR
A morbillivirus in organs of Mediterranean monk seals (Monachus monachus) lost during a recent mass die-off is identified, reminiscent of several recent morbillvirus outbreaks in aquatic mammals.