Data on estimated back-calculated body growth from both harvested and non-harvested populations of northern pike over 50 years along the Baltic Sea coast and in Lake Mälaren, Sweden. The aim is to study spatial and temporal variation in body growth, and especially how body growth relates to variation in water temperature. Data on surface water temperature from Kvädöfjärden (Batltic Sea) and Lake Mälaren during the study period. See detailed description of methods and analyses in the original article.

Length and age of pike from monitoring and commercial fisheries. Data include estimated length at age of individuals from backcalculations of wingbones.

Time series of monthly average surface water temperature during summer at Kvädöfjärden (Baltic Sea) and Lake Mälaren.

Data contains personal data

Language

English

Method and outcome

Time period(s) investigated

1963 – 2019

Biobank is connected to the study

This study has used existing samples from a scientific collection or biobank

Scientific collection or biobank name: Vävnad för åldersanalys på fisk (Databas Oden, SLU Akvatiska resurser)

Type(s) of sample: Wingbones from pike (Esox lucius)

Variables

Data format / data structure

Numeric

Text

Data collection

Data collection 1

Mode of collection: Biological tests
Description of the mode of collection: Aga determination and backcalculation of length at age from the wingbone of pikes collected from commercial fisheries during spawning.
Time period(s) for data collection: 1963 – 2019
Temporal resolution: 1 year

Data collection 2

Mode of collection: Physical measurements and tests
Description of the mode of collection: Manual measurment of surface water (0.5 m depth) with water thermometer, rounded to nearest decimal.
Time period(s) for data collection: 1964 – 2018
Temporal resolution: 1 month

Geographic coverage

Geographic spread

Geographic location: Stockholm County, Östergötland County

Geographic description: Lake Mälaren and coastal area of Östergötland county

Administrative information

Responsible department/unit

Aquatic resources

Funding

Funding agency: Swedish Agency for Marine and Water Management
Funding agency's reference number: 4637-18
Funding information: Decision Dnr 4637-18

Topic and keywords

Research area

Ecology (Standard för svensk indelning av forskningsämnen 2011)

Evolutionary biology (Standard för svensk indelning av forskningsämnen 2011)

Biota (INSPIRE topic categories)

Keywords

Water temperature, Climate change adaptation, Fisheries management, Fishing, Water protection area, Biodiversity protection, Climate change impact

Publications

Berggren, T., Sundblad, G., Bergström, U., Östman, Ö. 2022. Warmer water increases early body growth of northern pike (Esox lucius), but mortality has larger impact on decreasing body sizes. Canadian Journal of Fisheries and Aquatic Science, 79(5):771-781.
DOI: https://doi.org/10.1139/cjfas-2020-0386
SwePub: oai:slubar.slu.se:117106

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Published: 2024-11-04

Last updated: 2024-11-04