The Low Ontogenetic Diet Diversity and Flexibility of the Pike-Perch, <i>Sander lucioperca</i> (Linnaeus, 1758) (Osteichthyes, Percidae): A Case Study
This study reveals the diet of pike-perch from two habitats within the Tersko-Caspian region. The feeding habits of pike-perch in the Sulak and Terek rivers and Tersko-Caspian region were investigated based on 354 specimens sampled monthly from a commercial catch in 2019. Their diet consisted of dif...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-07-01
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| Series: | Fishes |
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| Online Access: | https://www.mdpi.com/2410-3888/8/8/395 |
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| author | Aminat K. Alieva Botagoz M. Nasibulina Shima Bakhshalizadeh Tatyana F. Kurochkina Nikolai N. Popov Bekzhan I. Barbol Doru Bănăduc Nurgul M. Jussupbekova Gulnur A. Kuanysheva Attaala M. Ali |
| author_facet | Aminat K. Alieva Botagoz M. Nasibulina Shima Bakhshalizadeh Tatyana F. Kurochkina Nikolai N. Popov Bekzhan I. Barbol Doru Bănăduc Nurgul M. Jussupbekova Gulnur A. Kuanysheva Attaala M. Ali |
| author_sort | Aminat K. Alieva |
| collection | DOAJ |
| description | This study reveals the diet of pike-perch from two habitats within the Tersko-Caspian region. The feeding habits of pike-perch in the Sulak and Terek rivers and Tersko-Caspian region were investigated based on 354 specimens sampled monthly from a commercial catch in 2019. Their diet consisted of different prey, with fish representing the most important prey group (up to 90%). <i>Rutilus caspicus</i> dominated with a frequency of occurrence of 20.5, and <i>Aspius aspius</i>, <i>Perca fluviatilis</i>, and <i>Chondrostoma oxyrhynchum</i>, had 13, 9.5, and 8.3%. In the earlier ages 1+ and 2+, zooplankton dominated, followed by mysids and chironomids, which continues into the older ages but at decreasing rates. Analysis of monthly variations in stomach fullness indicated that feeding intensity fluctuated in time, with the highest values in March–April, and lowest in September and November. It was found that the diet of pike-perch in the western Caspian changed considerably from season to season. They begin to actively feed after wintering and before, or even during, spawning period. The spectrum of the diet of <i>Sander lucioperca</i> includes more than 20 elements, mainly juveniles of commercially valuable fish. This fish is characterized by a relatively low ontogenetic diet diversity and flexibility, which makes it sensitive to environmental changes, including anthropogenically induced ones. This fish partially compensates for this disadvantage with its lifestyle, namely, its active foraging movements and migrations from fresh water to salt water and back, following its prey species. |
| first_indexed | 2024-03-10T23:56:53Z |
| format | Article |
| id | doaj.art-07b68ee9e0fb4843a30401d5709e08bf |
| institution | Directory Open Access Journal |
| issn | 2410-3888 |
| language | English |
| last_indexed | 2024-03-10T23:56:53Z |
| publishDate | 2023-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Fishes |
| spelling | doaj.art-07b68ee9e0fb4843a30401d5709e08bf2023-11-19T01:03:58ZengMDPI AGFishes2410-38882023-07-018839510.3390/fishes8080395The Low Ontogenetic Diet Diversity and Flexibility of the Pike-Perch, <i>Sander lucioperca</i> (Linnaeus, 1758) (Osteichthyes, Percidae): A Case StudyAminat K. Alieva0Botagoz M. Nasibulina1Shima Bakhshalizadeh2Tatyana F. Kurochkina3Nikolai N. Popov4Bekzhan I. Barbol5Doru Bănăduc6Nurgul M. Jussupbekova7Gulnur A. Kuanysheva8Attaala M. Ali9West Caspian Department of the Volga-Caspian Branch of the VNIRO FSBI (KaspNIRKh), Makhachkala 367000, RussiaFaculty of Geology & Geography, Innovative Natural Institute, Astrakhan State University, Shaumyana Square 1, Astrakhan 414000, RussiaDepartment of Marine Sciences, Caspian Sea Basin Research Center, University of Guilan, Rasht 41996-13776, IranFaculty of Geology & Geography, Innovative Natural Institute, Astrakhan State University, Shaumyana Square 1, Astrakhan 414000, RussiaKazakh Research Institute of Fisheries, Atyrau 060027, KazakhstanFaculty of Biology and Biotechnology, Al-Farabi Kazakh National University, Almaty 050040, KazakhstanApplied Ecology Research Center, Lucian Blaga University of Sibiu, 550024 Sibiu, RomaniaInstitute of Zoology, Almaty 050060, KazakhstanDepartment of Ecology, Safi Utebayev Atyrau Oil and Gas University, Musa Baymukhanov Str. 45A, Atyrau 060027, KazakhstanIndependent Researcher, Krasnoarmeeskaya 29, Astrakhan 414000, RussiaThis study reveals the diet of pike-perch from two habitats within the Tersko-Caspian region. The feeding habits of pike-perch in the Sulak and Terek rivers and Tersko-Caspian region were investigated based on 354 specimens sampled monthly from a commercial catch in 2019. Their diet consisted of different prey, with fish representing the most important prey group (up to 90%). <i>Rutilus caspicus</i> dominated with a frequency of occurrence of 20.5, and <i>Aspius aspius</i>, <i>Perca fluviatilis</i>, and <i>Chondrostoma oxyrhynchum</i>, had 13, 9.5, and 8.3%. In the earlier ages 1+ and 2+, zooplankton dominated, followed by mysids and chironomids, which continues into the older ages but at decreasing rates. Analysis of monthly variations in stomach fullness indicated that feeding intensity fluctuated in time, with the highest values in March–April, and lowest in September and November. It was found that the diet of pike-perch in the western Caspian changed considerably from season to season. They begin to actively feed after wintering and before, or even during, spawning period. The spectrum of the diet of <i>Sander lucioperca</i> includes more than 20 elements, mainly juveniles of commercially valuable fish. This fish is characterized by a relatively low ontogenetic diet diversity and flexibility, which makes it sensitive to environmental changes, including anthropogenically induced ones. This fish partially compensates for this disadvantage with its lifestyle, namely, its active foraging movements and migrations from fresh water to salt water and back, following its prey species.https://www.mdpi.com/2410-3888/8/8/395Caspian Sea basinfishfeeding habitsstomach fullnesspredator–prey interactions |
| spellingShingle | Aminat K. Alieva Botagoz M. Nasibulina Shima Bakhshalizadeh Tatyana F. Kurochkina Nikolai N. Popov Bekzhan I. Barbol Doru Bănăduc Nurgul M. Jussupbekova Gulnur A. Kuanysheva Attaala M. Ali The Low Ontogenetic Diet Diversity and Flexibility of the Pike-Perch, <i>Sander lucioperca</i> (Linnaeus, 1758) (Osteichthyes, Percidae): A Case Study Fishes Caspian Sea basin fish feeding habits stomach fullness predator–prey interactions |
| title | The Low Ontogenetic Diet Diversity and Flexibility of the Pike-Perch, <i>Sander lucioperca</i> (Linnaeus, 1758) (Osteichthyes, Percidae): A Case Study |
| title_full | The Low Ontogenetic Diet Diversity and Flexibility of the Pike-Perch, <i>Sander lucioperca</i> (Linnaeus, 1758) (Osteichthyes, Percidae): A Case Study |
| title_fullStr | The Low Ontogenetic Diet Diversity and Flexibility of the Pike-Perch, <i>Sander lucioperca</i> (Linnaeus, 1758) (Osteichthyes, Percidae): A Case Study |
| title_full_unstemmed | The Low Ontogenetic Diet Diversity and Flexibility of the Pike-Perch, <i>Sander lucioperca</i> (Linnaeus, 1758) (Osteichthyes, Percidae): A Case Study |
| title_short | The Low Ontogenetic Diet Diversity and Flexibility of the Pike-Perch, <i>Sander lucioperca</i> (Linnaeus, 1758) (Osteichthyes, Percidae): A Case Study |
| title_sort | low ontogenetic diet diversity and flexibility of the pike perch i sander lucioperca i linnaeus 1758 osteichthyes percidae a case study |
| topic | Caspian Sea basin fish feeding habits stomach fullness predator–prey interactions |
| url | https://www.mdpi.com/2410-3888/8/8/395 |
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