scholarly journals Recreational anglers as citizen scientists can provide data to estimate population size of pike, Esox lucius

2020 ◽  
Vol 27 (4) ◽  
pp. 367-380
Author(s):  
Konrad Karlsson ◽  
Elina Kari
Keyword(s):  
Population Size ◽  
Esox Lucius ◽  
Pike Esox Lucius ◽  
Estimate Population Size

Temporal changes and effective population size of an Italian isolated and supportive-breeding managed northern pike (Esox lucius) population

2009 ◽  
Vol 96 (2-3) ◽  
pp. 139-147 ◽  
Author(s):  
L. Lucentini ◽  
A. Palomba ◽  
L. Gigliarelli ◽  
G. Sgaravizzi ◽  
H. Lancioni ◽  
...  
Keyword(s):  
Population Size ◽  
Effective Population Size ◽  
Northern Pike ◽  
Esox Lucius ◽  
Temporal Changes ◽  
Effective Population ◽  
Supportive Breeding ◽  
Pike Esox Lucius

Northern pike (Esox lucius) in a warming lake: changes in population size and individual condition in relation to prey abundance

Hydrobiologia ◽  
2008 ◽  
Vol 601 (1) ◽  
pp. 29-40 ◽  
Author(s):  
Ian J. Winfield ◽  
J. Ben James ◽  
Janice M. Fletcher
Keyword(s):  
Population Size ◽  
Northern Pike ◽  
Esox Lucius ◽  
Prey Abundance ◽  
Pike Esox Lucius ◽  
Individual Condition

Phospholipid Composition of Mitochondria of Gills of Pike (Esox lucius) under the Zinc Ions Impact

2013 ◽  
Vol 49 (6) ◽  
pp. 98-101
Author(s):  
Yu. I. Senyk ◽  
V. O. Khomenchuk ◽  
V. Z. Kurant ◽  
V. V. Grubinko
Keyword(s):  
Phospholipid Composition ◽  
Esox Lucius ◽  
Zinc Ions ◽  
Pike Esox Lucius

Catchments affect growth rate of Northern Pike, Esox lucius, in subarctic lakes

2021 ◽  
Vol 83 (3) ◽  
Author(s):  
Mehdi Moslemi-Aqdam ◽  
George Low ◽  
Mike Low ◽  
Brian A. Branfireun ◽  
Heidi K. Swanson
Keyword(s):  
Growth Rate ◽  
Northern Pike ◽  
Esox Lucius ◽  
Subarctic Lakes ◽  
Pike Esox Lucius

scholarly journals The wildcat Felis silvestris in northern Turkey: assessment of status using camera trapping

Oryx ◽  
2011 ◽  
Vol 45 (1) ◽  
pp. 112-118 ◽  
Author(s):  
Özgün Emre Can ◽  
İrfan Kandemi̇r ◽  
İnci̇ Togan
Keyword(s):  
Population Size ◽  
Camera Traps ◽  
Sampling Effort ◽  
Felis Silvestris ◽  
Forest Patch ◽  
Western Turkey ◽  
Lack Of Information ◽  
The Status ◽  
Capture Recapture ◽  
Estimate Population Size

AbstractThe wildcat Felis silvestris is a protected species in Turkey but the lack of information on its status is an obstacle to conservation initiatives. To assess the status of the species we interviewed local forestry and wildlife personnel and conducted field surveys in selected sites in northern, eastern and western Turkey during 2000–2007. In January–May 2006 we surveyed for the wildcat using 16 passive infrared-trigged camera traps in Yaylacı k Research Forest, a 50-km2 forest patch in Yenice Forest in northern Turkey. A total sampling effort of 1,200 camera trap days over 40 km2 yielded photo-captures of eight individual wildcats over five sampling occasions. Using the software MARK to estimate population size the closed capture–recapture model M0, which assumes a constant capture probability among all occasions and individuals, best fitted the capture history data. The wildcat population size in Yaylacı k Research Forest was estimated to be 11 (confidence interval 9–23). Yenice Forest is probably one of the most important areas for the long-term conservation of the wildcat as it is the largest intact forest habitat in Turkey with little human presence, and without human settlements, and with a high diversity of prey species. However, it has been a major logging area and is not protected. The future of Yenice Forest and its wildcat population could be secured by granting this region a protection status and enforcing environmental legislation.

Estimation of Catchabilities and Population Sizes of Lobsters

1963 ◽  
Vol 20 (1) ◽  
pp. 59-88 ◽  
Author(s):  
J. E. Paloheimo
Keyword(s):  
Environmental Factors ◽  
Population Size ◽  
Atlantic Coast ◽  
Temperature Data ◽  
New Method ◽  
Bottom Temperature ◽  
Population Size Estimates ◽  
Population Sizes ◽  
Estimate Population Size ◽  
Size Estimates

Techniques of estimating population size, level of fishing, and the degree of dependence of fishing success on environmental factors are examined on the basis of tagging, catch and effort data. A new method is developed to estimate population size from catch, effort, and temperature data when the catchability varies with temperature.The methods of estimation discussed are applied to data collected from a number of lobster fisheries on Canada's Atlantic coast. Analysis confirms a relationship between the catchability of lobsters and bottom temperature. Differences in this relationship are found between areas and between tagged and untagged lobsters within areas. It is suggested that these differences are attributable to the differences in densities as well as to aggregations of lobsters and fishing. The effect of these aggregations on population size estimates is considered.Calculated average catchabilities at comparable temperatures are different for different areas. These differences are correlated with the numbers of trap hauls per day per square miles fished. It is suggested that the differences in the catchabilities might be due to interactions between units of gear not predicted by the customary relationship between catch and effort.

The variability of the catch from gill nets set for pike Esox lucius L.

1972 ◽  
Vol 2 (1) ◽  
pp. 77-82 ◽  
Author(s):  
T. B. BAGENAL
Keyword(s):  
Esox Lucius ◽  
Gill Nets ◽  
Pike Esox Lucius
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