| 词汇 | smolt |
| 释义 | BETA Examples of smoltsmolt isn’t in the Cambridge Dictionary yet. You can help! Vertical transmission of the parasite may be facilitated by the relative timing of smolt migration and adult lice-infected salmon returning to the coast. Technically, the terms "parr" and "smolt" are used to describe pre- and post-migratory stages of anadromous salmonids, respectively. The number of fish returning to the coast prior to or during the smolt migration as opposed to later in the year varies regionally however. Typically, smolt populations are infested with a range of parasitic stages whereas adult salmon returning from the ocean tend to be infested with adult lice. Gene expression during natural development was investigated in retinae from fish at both parr and smolt stages. Starting this year, artificially reared smolts have been introduced and this will continue for a period of years. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 No salmon smolts have been found affected, and careful checks have been made into this. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 The only research carried out into the number of smolt lost to cormorants occurred in 1986. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 However, it is important to get the maximum number of smolts down the river and out to sea. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 However, what about the smolts running down and going into mill lades? From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 Others may be missing a key window for bringing in smolts, and that problem will increase if the ban is maintained for some time. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 I have seen them sitting at vantage points taking smolts and so on when the smolts were running. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 I understand that a reliable assessment cannot be made until four or five years after the smolts have migrated to the sea. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 There is then the equally serious problem of the downstream passage of salmon kelts, smolts and other migratory fish species, especially shad. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 These conditions provide an impenetrable barrier for fish that want to go up the river as well as for smolts on their way down. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 He has already held several meetings on the matter with representatives of the fish farming industry, including smolt producers. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 It is indeed appropriate that smolts be protected from being drawn into water-works, fish farms etc. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 We must seriously consider putting grids on sluices to ensure that the smolts are not passing through to the fish farms. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 Smolts are sensitive and delicate creatures and tagging requires very skilled operators. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 More normal is the practice to use seawater cages for ongrowing salmon smolts to market size. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 |
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