Mr Speaker, Sir, I rise to vote against this Head. It is regrettable that I have to revert once more to the subject of prawn ponds. If I do so, the Minister has only himself to blame. He held back his information and arguments when he spoke in reply to his motion on 4th December. It is generally agreed on this side of the House that if there is the remotest possibility that the supply of prawns will drop with the cutting down of 1,000 acres of mangroves and replacing the breeding area by similar trapping areas, then the Government should not proceed. Now, Sir, the Minister admitted, a little late, that he had to reply on his Fisheries Officer. He said: "If the House feels that the opinion of the Fisheries Officer is wrong, then the House can vote against the motion." The Minister then read out the Fisheries Officer's expert opinion, rather rapidly, I thought, for it was not easy to follow; in any case, I had no opportunity to reply. The expert opinion on which the Minister solely relies - he is not prepared to listen to any other expert opinion - is to be found in column 2884 of volume 2, No. 40 of the Official Report. Perhaps I may read it just a little more slowly? The second sentence is: "No conclusive research work on the breeding of Peneids in Malayan waters has been carried out." That is a significant point - the Chief Fisheries Officer has no conclusive evidence. So we will, according to the Minister, cut down 1,000 acres of trees first and then come to conclusions later. To go on, the third sentence reads: "The present state of knowledge based on the research work done in the United States of America and elsewhere on this group of prawns indicates that they breed fairly far out to sea in clear water. A review of this work by three U.S.A. experts on prawns, namely, W. N. Anderson, J. E. King and M. J. Linder, may be found in the Biological Bulletin of 1949, and this work has been accepted by biologists all over the world as accurately representing the position, so that we may until such time as proof to the contrary is available, assume that our Peneid prawns spawn fairly far out to sea and that their larval stages are brought into the ponds by the tide from spawning grounds which may be ten miles or more from the Ulu Pandan area ...". Now I looked up this work which actually is in volume 96, on page 168 and the following pages - I have it with me here. The actual title of the paper is "Early stages of the life history of the common marine shrimp Penaeus Setiferus (Linnaeus)", and this edible prawn is to be found in the South Atlantic and the Gulf of Mexico region of the United States. So that when we are told that this paper refers to the group of Peneids, it is not in fact the case; it refers to a single species in the family of Peneids - and I have it on other expert authority that this prawn is not to be found in Malayan waters. And even if it does, perhaps the Minister will ask the Fisheries Officer whether he can state positively that Penaeus Setiferus (Linnaeus) is to be found here. That is the reason why I asked what research had been done by the Fisheries Department. The following are nevertheless conclusions made by the three Americans:- "The relationship of nursery grounds to commercial catch [which is the summary of the paper]: We conclude that the number of openings to the outside waters and the extent of favourable nursery grounds are two of the major physical factors influencing production of shrimps. Secondly, in addition to the number of passes to the area of the nursery grounds, coastal or nearby offshore areas with relatively shallow water, high salinity and mud also seems to be a requisite." 3.45 p.m. And if you were to search these four pages, you will not find a reference anywhere to the breeding of prawns 10 miles out to sea. There is no mention about any distance whatever. In fact, if anything, the reverse is hinted at, and this work also does not pretend to be conclusive even about the movements of this particular South Atlantic and Gulf of Mexico prawn. "The factors responsible for the inshore movement of larval and post-larval Penaeus Setiferus have not been determined. We believe, however, that for the young to reach the nursery grounds, they must encounter a favourable incoming current." That was the point which I did refer to very briefly the other day in this House, that the question of currents was a most important one with regard to the movement of prawns to or from the breeding areas, wherever these may be, and to the feeding grounds in mangrove, and quite clearly I think the House will agree that the currents around these islands are pretty tricky ones and I think it is quite true to say that not enough is known about them to make it quite clear what the movements would in fact be. And so, as there is not a shred of evidence in this paper in support of what the Minister said was in it, I cannot but come to the conclusion that the Minister has not, in fact, read the paper himself. So, Sir, we are satisfied that the Minister has not proved his case from the biological point of view. If he will only look at the evidence with a little less prejudice, he must come to the conclusion that the action he proposes to take may do more harm than good. I say 'may do more harm than good': it is open to doubt. Now let us turn to two other points. Firstly, I have a written answer to my question regarding the extent of other areas of mangrove suitable for the development of prawn ponds. The estimated present acreage of prawn ponds is 1,883 acres, and there are still 5,945 acres approximately of Crown land suitable for production. Why cannot these be used instead of the area in question? The only argument against the development of prawn ponds in the Johore Straits, which comprises the bulk of 5,945 acres given by the Minister, is because of the curfew and the restriction on fishermen to fish there at night. This argument, Sir, does not seem to me to make sense. Prawn ponds are on land and not out at sea. If fishermen are restricted from fishing out to sea, there is all the more reason for developing prawn ponds as an alternative or additional livelihood. Why not make a start of increasing the prawn catch on this West Coast instead of at Ulu Pandan? And there are other factors which should make us hesitate before changing conditions at Pandan because two other big changes are already being made. I refer to the affluent of the new sewerage purification plant being built in Ulu Pandan which would discharge into the Sungei Jurong and which could possibly upset salinity; and there is the new Caltex oil depot and jetty being built at the Southern extremity of the Nature Reserve, with the danger of oil discharge - two factors above and below the Nature Reserve. Why add a third and possibly fatal disturbance when there is other land available? Sir, the Minister has told us it has not yet been decided by what method the 800 acres are to be let out for development as prawn ponds. That is all to the good and gives a further chance to the Minister to pause and think again. But I would say this, that if he persists in going on with the scheme, will he give an undertaking to this House that he will invite applications to operate the scheme by public advertisement and public tender? I mention this because I and my colleagues have heard rumours - and rumours should be scotched quickly if untrue, as I am sure they are untrue - that applications for these acres were made in January and February of this year, and that promises were made. In conclusion, will the Minister and the Government agree to review this whole matter again? In view of the evidence, it is their plain duty in the public interest to do so.