"The Tories will try to tell you that the Labour Welsh Government has done nothing to try to understand the cause of the high cockle mortality in Penclawdd and the surrounding areas," says Welsh Labour's Assembly candidate for Gower, Rebecca Evans.
This, she says, is not the case.
Rebecca Evans reports that the cockle stocks in the Burry Inlet have actually been systematically surveyed since at least 2003. Researchers, supported by the Welsh Government, have ruled out as single causes of mortality a raft of potential factors - including stock density, food limitation, chemical pollutants, sediment movement and temperature variations.
Rebecca Evans said: "As a regional Assembly Member I have been making representations on behalf of the cockle industry in South West Wales as far back as May 2012. I know how important the industry is to our communities.
"The latest evidence suggests that remaining causes might include naturally occurring parasites and pathogens, or natural 'boom and bust' population dynamics, but there is no conclusive evidence.
"If elected to represent Gower I will continue to support efforts to seek scientific answers, and will continue to work on behalf of the cockle industry."