Treasurer, Jim (1998) Life-history strategies of pike in a high-altitude loch in Scotland. Freshwater Forum, 11, pp. 59-68.
|PDF - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader |
Download (246Kb) | Preview
Pike, Esox lucius, are present in Loch Callater at their highest altitude and most extreme habitat in the British Isles, with subarctic winter conditions and extended winter ice-cover. The response of pike in this environment is slower growth, due to a shorter growing season and the low availability of forage fish, giving the poorest reported length-at-age for pike in the British Isles. All pike were mature or had spawned in the same year, with gravid ovaries in April and normal recovering ovaries in June-July. As in other lochs with few prey fishes, the larger pike ate small items such as invertebrates.
|Title:||Life-history strategies of pike in a high-altitude loch in Scotland|
|Journal or Publication Title:||Freshwater Forum|
|Page Range:||pp. 59-68|
|Issuing Agency:||Freshwater Biological Association|
|Uncontrolled Keywords:||Diets; Feeding behaviour; Freshwater fish; Lakes; Life history; Sexual reproduction; Stomach content; Scotland; Loch Callater|
|Depositing User:||Hardy B Schwamm|
|Date Deposited:||26 Nov 2010 13:40|
|Last Modified:||29 Sep 2011 18:12|
Actions (login required)