My Lords, I have been up, and indeed in, many African rivers, but not the Zambezi, like the noble Lord, Lord Moylan. So, I will try to be as brief as he has been, but I want to make two comments: one about Amendment 39 and one about Amendment 42.
The inclusion of decapod crustaceans and cephalopods within the remit of this Bill is warranted, evidence based and consistent with current legislation with regard to cephalopods, in that they are protected under the Animals (Scientific Procedures) Act, so I support this amendment. However, currently in the Bill, it appears that larval forms of decapod crustacea would also be included. These can be microscopic; they are the fauna of plankton, and then they grow up into shrimps and prawns and so on. I ask the Minister: at what point does a larval decapod crustacean become sentient? A briefing from the Marine Biological Association and the National Oceanography Centre expresses concerns particularly that, if larval forms of crustacea are included, it might compromise their environmental monitoring and research functions. I ask the Minister if consideration has been given to an amendment along the lines of Amendment 41, in the names of the noble Lords, Lord Mancroft and Lord Marland, that excludes embryonic forms.
Amendment 42, in the names of the noble Lord, Lord Moylan, the noble Earl, Lord Kinnoull, myself, and the noble Lord, Lord Forsyth, removes the possibility,
currently in the Bill, for the Secretary of State by regulation to extend the list of animals covered in the Bill. This would still be possible but would be subject to full parliamentary scrutiny through primary legislation. This would recognise that, as scientific research continues, evidence may accrue from which it might be argued that other invertebrates may have some degree of sentience. Crustacea are but one group within a vast taxon of arthropods that includes many thousands of species including the insects.
In the excellent LSE report that reported on the sentience in decapod crustaceans and cephalopods, there is a matrix of criteria—eight in that report—in which evidence of varying strengths may be aggregated in varying levels of confidence to arrive at an overall judgment whether a particular group may be considered sentient. There is not a clear demarcation between sentient and non-sentient.
The inclusion of further groups of invertebrates as sentient merits very thorough and balanced political, economic and societal—as well as scientific—consideration, and should ultimately be a parliamentary decision in primary legislation.