<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>The present study investigated the trophic ecology of two species living in an alluvial lake ecosystem in terms of season, length groups, sex, and mouth morphology. The fish were caught in a coastal lake area between December 2014 and March 2016 using a seine. In general, <italic>C. aquaedulcis</italic> was the most important prey for <italic>S. abaster</italic>, accounting for 10.99% of all prey, while amphipods accounted for 54.04% of the <italic>S. acus</italic> diet. Amphipods were the most frequently consumed prey in autumn, while <italic>C. aquaedulcis</italic> was the most important prey in spring. This result indicates that the species preferred similar prey groups and generated food competition depending on the season. The short-length group contained samples of <italic>S. abaster</italic> with empty guts, whereas <italic>S. acus</italic> in the same group consumed <italic>C. aquaedulcis</italic>. Length group II and III of individuals indicated that both species consumed amphipods and juvenile <italic>Syngnathus</italic> sp. Thus, the two species had statistically different preferences in terms of prey length. The mouth width of <italic>S. abaster</italic> was larger than that of <italic>S. acus</italic>. In conclusion, zooplankton constituted the main prey for both species in the lake and the morphological differences between the mouth apparatus of the species were due to the differences in feeding habits.</p>
</abstract>

The present study investigated the trophic ecology of two species living in an alluvial lake ecosystem in terms of season, length groups, sex, and mouth morphology. The fish were caught in a coastal lake area between December 2014 and March 2016 using a seine. In general, C. aquaedulcis was the most important prey for S. abaster, accounting for 10.99% of all prey, while amphipods accounted for 54.04% of the S. acus diet. Amphipods were the most frequently consumed prey in autumn, while C. aquaedulcis was the most important prey in spring. This result indicates that the species preferred similar prey groups and generated food competition depending on the season. The short-length group contained samples of S. abaster with empty guts, whereas S. acus in the same group consumed C. aquaedulcis. Length group II and III of individuals indicated that both species consumed amphipods and juvenile Syngnathus sp. Thus, the two species had statistically different preferences in terms of prey length. The mouth width of S. abaster was larger than that of S. acus. In conclusion, zooplankton constituted the main prey for both species in the lake and the morphological differences between the mouth apparatus of the species were due to the differences in feeding habits.

Monitoring of the trophic ecology of pipefish species (<italic>Syngnathus abaster, Syngnathus acus</italic>) in an alluvial lake habitat (Lake Bafa, Turkey)

Faculty of Fisheries Department of Hydrobiology

Science and Art Faculty, Department of Biology

Oceanological and Hydrobiological Studies

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Monitoring of the trophic ecology of pipefish species () in an alluvial lake habitat (Lake Bafa, Turkey)

The present study investigated the trophic ecology of two species living in an alluvial lake ecosystem in terms of season, length groups, sex, and mouth...

Monitoring of the trophic ecology of pipefish species (Syngnathus abaster, Syngnathus acus) in an alluvial lake habitat (Lake Bafa, Turkey)

Article Category: Original research paper

Publié en ligne: 21 mars 2021

Pages: 24 - 32

Reçu: 20 juil. 2020

Accepté: 31 août 2020

DOI: https://doi.org/10.2478/oandhs-2021-0003

Mots clés
pipefish, feeding habits, prey partition, trophic relations

© 2021 Sule Gurkan et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Monitoring of the trophic ecology of pipefish species (Syngnathus abaster, Syngnathus acus) in an alluvial lake habitat (Lake Bafa, Turkey)

Article Category: Original research paper

Publié en ligne: 21 mars 2021

Pages: 24 - 32

Reçu: 20 juil. 2020

Accepté: 31 août 2020

DOI: https://doi.org/10.2478/oandhs-2021-0003

Mots cléspipefish, feeding habits, prey partition, trophic relations

© 2021 Sule Gurkan et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Mots clés
pipefish, feeding habits, prey partition, trophic relations