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Is the body condition of the three-spined stickleback (Gasterosteus aculeatus) determined by the type of food consumed? Cover

Is the body condition of the three-spined stickleback (Gasterosteus aculeatus) determined by the type of food consumed?

Oceanological and Hydrobiological Studies
Volume 45 (2016): Issue 4 (December 2016)
By: Anna J. Pawelec,  Mariusz R. Sapota and  Michał E. Skóra  
Open Access
|Dec 2016

Figures & Tables

Figure 1

Location of the study area and sampling sites in the western part of the Gulf of Gdańsk
Location of the study area and sampling sites in the western part of the Gulf of Gdańsk

Figure 2

Total length of G. aculeatus individuals and the Shapiro-Wilk test for normality
Total length of G. aculeatus individuals and the Shapiro-Wilk test for normality

Figure 3

Percentage of food items in stomachs of three-spined sticklebacks. In brackets – the average number of specimens per stomach. The grey color graph shows the composition of Copepoda divided into orders: 1 – Harpacticoida, 2 – Copepoda undet., 3 – Calanoida, 4 – Cyclopoida
Percentage of food items in stomachs of three-spined sticklebacks. In brackets – the average number of specimens per stomach. The grey color graph shows the composition of Copepoda divided into orders: 1 – Harpacticoida, 2 – Copepoda undet., 3 – Calanoida, 4 – Cyclopoida

Figure 4

G. aculeatus stomach fullness index
G. aculeatus stomach fullness index

Figure 5

Body condition index of fish caught during sampling (figures – sampling sites; colors – seasons: green – spring, blue – summer; * – group of smaller fish from Chałupy site); average and standard deviation of the Fulton index for fish from sampling sites
Body condition index of fish caught during sampling (figures – sampling sites; colors – seasons: green – spring, blue – summer; * – group of smaller fish from Chałupy site); average and standard deviation of the Fulton index for fish from sampling sites

Food selectivity indices (Ivlev 1955) for fish caught in the region of Hel (spring, summer) and Sopot (spring)

SopotHelHel
springsummer
Copepoda0.000-0.074-0.041
Cladocera 0.9510.205
Nematoda -0.650
Crustacea
Mysidacea
Amphipoda
Insecta
HydrozoaNo data on specimens in the environmental samples from a similar time of the year
Annelida
Polychaeta
Bryozoa
Pisces
Arthropoda eggs
Fish eggs

Food items and frequency of their occurrence in the guts of three-spined sticklebacks

Food itemsecological formationSampling sites and seasons
HelSopotChalupy
springsummerspringsummersummer
Crustacea undet. 3 5073
Copepoda undet.p10037417869
Calanoidap94426 80
Cyclopoidap74213 17
Harpacticoidab97216 34
Cladocerap9447 1014
Evadne sp.p6521
Podon sp.p4226
Bosmina sp.p 42
Mysidacea undet.p 19
Mysis sp.p3
Neomysis integerp 65
Ostracodab 2
Amphipoda undet.b163228
Gammarus sp.b 173
Batyporeia sp.b 422827
Pontoporeia sp.b6113 3
Idotea sp.b 23
Bryozoab 3 6
Chirodomidae larvab 299
Gonothyrea sp.b26 32
Nematodab74 17
Annelida undet.b13 6 3
Hediste diversicolorb16 14
Insecta undet. 2337632214
Pisces undet. 3 3
Copepoda eggsp9432412414
fish eggs 195844717
plants 265 4614
sand* 2637318020
p – planktonic, b – benthic, * – non-organic food item but frequently observed
DOI: https://doi.org/10.1515/ohs-2016-0048 | Journal eISSN: 1897-3191 | Journal ISSN: 1730-413X
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Language: English
Page range: 588 - 599
Submitted on: Jan 12, 2016
|
Accepted on: May 11, 2016
|
Published on: Dec 12, 2016
Published by: University of Gdańsk
In partnership with: Paradigm Publishing Services
Publication frequency: 4 issues per year
Keywords:
fish,
Baltic Sea,
Gulf of Gdańsk,
food,
body condition
Related subjects:
Chemistry,
Chemistry, other,
Geosciences,
Geosciences, other,
Life sciences,
Life sciences, other

© 2016 Anna J. Pawelec, Mariusz R. Sapota, Michał E. Skóra, published by University of Gdańsk
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

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