Habitat preference of three-spined stickleback juveniles in experimental conditions and in wild eelgrass
| Autor: | T.S. Ivanova, Dmitry Lajus, M. V. Ivanov, A. V. Kucheryavyy, E.V. Rybkina |
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| Rok vydání: | 2016 |
| Předmět: |
0106 biological sciences
education.field_of_study biology Three-spined stickleback Ecology 010604 marine biology & hydrobiology Population Stickleback Gasterosteus Aquatic Science biology.organism_classification 010603 evolutionary biology 01 natural sciences Fucus Zostera marina Juvenile education Bay |
| Zdroj: | Journal of the Marine Biological Association of the United Kingdom. 97:1437-1445 |
| ISSN: | 1469-7769 0025-3154 |
| DOI: | 10.1017/s0025315416000825 |
| Popis: | Long-term population dynamics of three-spined stickleback Gasterosteus aculeatus in the White Sea during the 20th century has patterns similar to that of eelgrass Zostera marina. In this study we address possible mechanisms of such association through analysis of spatial distribution of juvenile stickleback in the wild and their substrate preferences in experimental conditions. Samples from different habitats (Z. marina, Fucus spp.) in 13 localities of Kandalaksha Bay have shown that the juvenile sticklebacks occurred mainly in the eelgrass beds. Their density was significantly lower in fucoids. In the experiments, carried out in August 2008–2009, the juveniles were offered the following types of substrates: brown macroalgae (dense and scarce), eelgrass and control (no substrate). In the experiments sticklebacks also showed a tendency to prefer eelgrass to fucoids, even if the density of the latter was higher. This may explain their higher densities associated with eelgrass in the wild. |
| Databáze: | OpenAIRE |
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