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Effects of lure type, fish size and water temperature on hooking location and bleeding in northern pike (Esox lucius) angled in the Baltic Sea

Stålhammar, Martin LU ; Franstam, T.; Lindstrom, J.; Hojesjo, J.; Arlinghaus, R. and Nilsson, Anders LU (2014) In Fisheries Research 157. p.164-169
Abstract
In recreational fishing, catch and release (C&R), where fish are released alive after capture, is commonly adopted to minimize fishing mortality. Injuries from hooking and the mode of de-hooking can affect survival probability, and the choice of angling gear can affect injury severity. We show for C&R angling for northern pike (Esox lucius) in the Baltic Sea that hooking location and size of fish captured vary among lure types. Hooking in gills and aorta increased bleeding severity, which was generally expressed more strongly in larger pike. Our results supported the notion that anglers can minimize injury in northern pike angling by the choice of appropriate gear. In addition, our study is one of the first to show that hooking... (More)
In recreational fishing, catch and release (C&R), where fish are released alive after capture, is commonly adopted to minimize fishing mortality. Injuries from hooking and the mode of de-hooking can affect survival probability, and the choice of angling gear can affect injury severity. We show for C&R angling for northern pike (Esox lucius) in the Baltic Sea that hooking location and size of fish captured vary among lure types. Hooking in gills and aorta increased bleeding severity, which was generally expressed more strongly in larger pike. Our results supported the notion that anglers can minimize injury in northern pike angling by the choice of appropriate gear. In addition, our study is one of the first to show that hooking location is also affected by water temperature; low temperatures tended to result in deeper hooking. Despite this, water temperature did not affect level of bleeding in pike, and low water temperatures may be beneficial as they likely reduce the overall stress response in released pike. (C) 2014 Elsevier B.V. All rights reserved. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Fisheries Research
volume
157
pages
164 - 169
publisher
Elsevier
external identifiers
  • wos:000338819600019
  • scopus:84900811427
ISSN
0165-7836
DOI
10.1016/j.fishres.2014.04.002
language
English
LU publication?
yes
id
a3c01dc0-2329-4a5a-8fc8-11cd214dcdf8 (old id 4598886)
date added to LUP
2014-09-05 09:32:50
date last changed
2017-05-21 03:15:41
@article{a3c01dc0-2329-4a5a-8fc8-11cd214dcdf8,
  abstract     = {In recreational fishing, catch and release (C&R), where fish are released alive after capture, is commonly adopted to minimize fishing mortality. Injuries from hooking and the mode of de-hooking can affect survival probability, and the choice of angling gear can affect injury severity. We show for C&R angling for northern pike (Esox lucius) in the Baltic Sea that hooking location and size of fish captured vary among lure types. Hooking in gills and aorta increased bleeding severity, which was generally expressed more strongly in larger pike. Our results supported the notion that anglers can minimize injury in northern pike angling by the choice of appropriate gear. In addition, our study is one of the first to show that hooking location is also affected by water temperature; low temperatures tended to result in deeper hooking. Despite this, water temperature did not affect level of bleeding in pike, and low water temperatures may be beneficial as they likely reduce the overall stress response in released pike. (C) 2014 Elsevier B.V. All rights reserved.},
  author       = {Stålhammar, Martin and Franstam, T. and Lindstrom, J. and Hojesjo, J. and Arlinghaus, R. and Nilsson, Anders},
  issn         = {0165-7836},
  language     = {eng},
  pages        = {164--169},
  publisher    = {Elsevier},
  series       = {Fisheries Research},
  title        = {Effects of lure type, fish size and water temperature on hooking location and bleeding in northern pike (Esox lucius) angled in the Baltic Sea},
  url          = {http://dx.doi.org/10.1016/j.fishres.2014.04.002},
  volume       = {157},
  year         = {2014},
}