. Report for ... on the Lancashire Sea-Fisheries Laboratory at the University of Liverpool, and the Sea-Fish Hatchery at Piel. Fig. 12. SjTioptic chart showing the migrations of marked plaice inNovember. 121 The December Migrations. Clearly there were three main regions where the fish wererecaught in November : (1) In Liverpool Bay, that is, fromabout the Liverpool Bar Light Vessel up to near Blackpooland mostly within the five-fathom contour line; (2) InMorecambe Bay, and (3) OfTshore and mainly between the. Fig. 13. Synoptic chart showing the migrations of marked plaice inDecember. 122 ten-
. Report for ... on the Lancashire Sea-Fisheries Laboratory at the University of Liverpool, and the Sea-Fish Hatchery at Piel. Fig. 12. SjTioptic chart showing the migrations of marked plaice inNovember. 121 The December Migrations. Clearly there were three main regions where the fish wererecaught in November : (1) In Liverpool Bay, that is, fromabout the Liverpool Bar Light Vessel up to near Blackpooland mostly within the five-fathom contour line; (2) InMorecambe Bay, and (3) OfTshore and mainly between the. Fig. 13. Synoptic chart showing the migrations of marked plaice inDecember. 122 ten- and twenty-fathoms contour lines. From regions (1)and (2) the plaice are still moving closer inshore, and from(3) they are moving dowai into the Eed Wharf-Beaumaris Bayarea. A new path is clearly indicated—that from the groundsjust offshore from the original area of liberation up to thebanks offshore from Ramsey Bay, in Isle of Man. The Autumn and Winter Migrations. We may now summarise the results obtained so far : theseare represented in Fig. 14 in a very general way. Each arrow,tipped with a black dot, represents the approximate positionof an actually-recaptured marked plaice, while some other,untipped arrows on the chart merely suggest the generaldirections of the migrations. All the marked fish recorded asrecaptured in this chart were liberated in the region indicatedas the area of liberation in Figs. 8 to 13 : this is theregion in Fig. 14 where the tipped arrows are most denselycrowded. First,
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectfisheries, bookyear18
