Abstract
Pikeperch Sander lucioperca is an economically important fish which depleted populations need intensive management and supplemental stocking. We aimed to assess the relative influence of various pikeperch stocking strategies in Lake Balaton, Hungary, and tested 60 stocking set-ups (two seasons × three lake areas × shore vs. offshore release × five size groups) by releasing 3000 tagged yearlings. Anglers reported data of 522 recaptures within four years after stocking. Recapture rate was highest in stocking of the most productive lake area, increased with fish size, was higher in shore than offshore releases, but did not differed between stocking seasons. Fish stocked to oligotrophic areas travelled longer distances and dispersed more than those stocked to the mesotrophic area. Fish size had little effect, whereas season and method of stocking had no effect on dispersal of fish. To conclude, in pikeperch, autumn stocking with large yearlings released directly from the shore is recommended over other set-ups. Stocking quotas may be concentrated in space in low productivity areas, but should be dispersed between multiple sites in food rich areas to attain complete dispersal. This study provides a framework for testing fisheries management alternatives and behaviour of stocked fish in intensively utilized habitats.
| Original language | English |
|---|---|
| Article number | 418 |
| Journal | Knowledge and Management of Aquatic Ecosystems |
| Volume | 2017-January |
| Issue number | 418 |
| DOIs | |
| Publication status | Published - Jan 1 2017 |
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Keywords
- Angling
- Fisheries management
- Mark and recapture
- Sander lucioperca
- Stocking strategy
ASJC Scopus subject areas
- Aquatic Science
- Ecology
- Water Science and Technology
- Nature and Landscape Conservation
- Management, Monitoring, Policy and Law
Cite this
Management of pikeperch stocking in Lake Balaton : Effect of season, area, fish size and method of release on the rate and distribution of recaptures. / Specziár, A.; Turcsányi, Béla.
In: Knowledge and Management of Aquatic Ecosystems, Vol. 2017-January, No. 418, 418, 01.01.2017.Research output: Contribution to journal › Article
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TY - JOUR
T1 - Management of pikeperch stocking in Lake Balaton
T2 - Effect of season, area, fish size and method of release on the rate and distribution of recaptures
AU - Specziár, A.
AU - Turcsányi, Béla
PY - 2017/1/1
Y1 - 2017/1/1
N2 - Pikeperch Sander lucioperca is an economically important fish which depleted populations need intensive management and supplemental stocking. We aimed to assess the relative influence of various pikeperch stocking strategies in Lake Balaton, Hungary, and tested 60 stocking set-ups (two seasons × three lake areas × shore vs. offshore release × five size groups) by releasing 3000 tagged yearlings. Anglers reported data of 522 recaptures within four years after stocking. Recapture rate was highest in stocking of the most productive lake area, increased with fish size, was higher in shore than offshore releases, but did not differed between stocking seasons. Fish stocked to oligotrophic areas travelled longer distances and dispersed more than those stocked to the mesotrophic area. Fish size had little effect, whereas season and method of stocking had no effect on dispersal of fish. To conclude, in pikeperch, autumn stocking with large yearlings released directly from the shore is recommended over other set-ups. Stocking quotas may be concentrated in space in low productivity areas, but should be dispersed between multiple sites in food rich areas to attain complete dispersal. This study provides a framework for testing fisheries management alternatives and behaviour of stocked fish in intensively utilized habitats.
AB - Pikeperch Sander lucioperca is an economically important fish which depleted populations need intensive management and supplemental stocking. We aimed to assess the relative influence of various pikeperch stocking strategies in Lake Balaton, Hungary, and tested 60 stocking set-ups (two seasons × three lake areas × shore vs. offshore release × five size groups) by releasing 3000 tagged yearlings. Anglers reported data of 522 recaptures within four years after stocking. Recapture rate was highest in stocking of the most productive lake area, increased with fish size, was higher in shore than offshore releases, but did not differed between stocking seasons. Fish stocked to oligotrophic areas travelled longer distances and dispersed more than those stocked to the mesotrophic area. Fish size had little effect, whereas season and method of stocking had no effect on dispersal of fish. To conclude, in pikeperch, autumn stocking with large yearlings released directly from the shore is recommended over other set-ups. Stocking quotas may be concentrated in space in low productivity areas, but should be dispersed between multiple sites in food rich areas to attain complete dispersal. This study provides a framework for testing fisheries management alternatives and behaviour of stocked fish in intensively utilized habitats.
KW - Angling
KW - Fisheries management
KW - Mark and recapture
KW - Sander lucioperca
KW - Stocking strategy
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UR - http://www.scopus.com/inward/citedby.url?scp=85034104436&partnerID=8YFLogxK
U2 - 10.1051/kmae/2017047
DO - 10.1051/kmae/2017047
M3 - Article
AN - SCOPUS:85034104436
VL - 2017-January
JO - Knowledge and Management of Aquatic Ecosystems
JF - Knowledge and Management of Aquatic Ecosystems
SN - 1961-9502
IS - 418
M1 - 418
ER -