Effects of Total Suspended Solids at Different Levels on the Eggs and Larvae of Endemic Fish, Tarek (Alburnus tarichi Güldenstädt, 1814) in the Karasu River (Van, Turkey)

The Karasu River (Van, Turkey) is one of the most important sources of intensive reproduction for Tarek (Alburnus tarichi Güldenstädt, 1814) in the Van Lake basin. However, sand pits and sand extraction activities in the Karasu River threaten the spawning areas of A. tarichi. This study aimed to inv...

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Main Authors: Ataman Altuğ Atıcı, Mahmut Elp, Fazıl Şen
Format: Article
Language:English
Published: Istanbul University Press 2023-07-01
Series:Aquatic Sciences and Engineering
Subjects:
Online Access:https://cdn.istanbul.edu.tr/file/JTA6CLJ8T5/CE3658C27DAB44729EAA7FB4A59B0933
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author Ataman Altuğ Atıcı
Mahmut Elp
Fazıl Şen
author_facet Ataman Altuğ Atıcı
Mahmut Elp
Fazıl Şen
author_sort Ataman Altuğ Atıcı
collection DOAJ
description The Karasu River (Van, Turkey) is one of the most important sources of intensive reproduction for Tarek (Alburnus tarichi Güldenstädt, 1814) in the Van Lake basin. However, sand pits and sand extraction activities in the Karasu River threaten the spawning areas of A. tarichi. This study aimed to investigate how increased sediment concentration in the Karasu River affects the eggs and larvae of A. tarichi during the reproductive period. The study in the laboratory was designed by measuring total suspended solids and turbidity associated with the river over two years for five different experimental groups (corresponding to 0, 10, 50, 100, and 600 mg L-1, and associated groups: control group, Group 1, Group 2, Group 3, and Group 4, respectively). The percentage of hatched out larvae was statistically different between the groups (p<0.05). The highest percentages of hatched out larvae were found in the control group (73.98±5.89%) and Group 1 (68.05±2.96%). The highest survival rates in larvae were determined in the control group (53.35±5.62%) and Group 1 (44.98±4.41%). These results demonstrate that A. tarichi is sensitive to suspended solid concentrations that are very common in the natural environment. In conclusion, sand pits and sand extraction activities must be stopped completely during the reproductive period of A. tarichi between May and July and strict controls should be put in place during this time. These measures will provide an important contribution to ensuring the continuity of this species.
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institution Kabale University
issn 2602-473X
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publishDate 2023-07-01
publisher Istanbul University Press
record_format Article
series Aquatic Sciences and Engineering
spelling doaj-art-5a4aee5c2e3e40a3827b9c4bebf696042025-08-20T03:52:52ZengIstanbul University PressAquatic Sciences and Engineering2602-473X2023-07-0138314515010.26650/ASE20231264370123456Effects of Total Suspended Solids at Different Levels on the Eggs and Larvae of Endemic Fish, Tarek (Alburnus tarichi Güldenstädt, 1814) in the Karasu River (Van, Turkey)Ataman Altuğ Atıcı0https://orcid.org/0000-0001-8700-8969Mahmut Elp1https://orcid.org/0000-0001-6811-5048Fazıl Şen2https://orcid.org/0000-0003-4242-3813Van Yüzüncü Yıl Üniversitesi, Van, TurkiyeKastamonu Üniversitesi, Kastamonu, TurkiyeVan Yüzüncü Yıl Üniversitesi, Van, TurkiyeThe Karasu River (Van, Turkey) is one of the most important sources of intensive reproduction for Tarek (Alburnus tarichi Güldenstädt, 1814) in the Van Lake basin. However, sand pits and sand extraction activities in the Karasu River threaten the spawning areas of A. tarichi. This study aimed to investigate how increased sediment concentration in the Karasu River affects the eggs and larvae of A. tarichi during the reproductive period. The study in the laboratory was designed by measuring total suspended solids and turbidity associated with the river over two years for five different experimental groups (corresponding to 0, 10, 50, 100, and 600 mg L-1, and associated groups: control group, Group 1, Group 2, Group 3, and Group 4, respectively). The percentage of hatched out larvae was statistically different between the groups (p<0.05). The highest percentages of hatched out larvae were found in the control group (73.98±5.89%) and Group 1 (68.05±2.96%). The highest survival rates in larvae were determined in the control group (53.35±5.62%) and Group 1 (44.98±4.41%). These results demonstrate that A. tarichi is sensitive to suspended solid concentrations that are very common in the natural environment. In conclusion, sand pits and sand extraction activities must be stopped completely during the reproductive period of A. tarichi between May and July and strict controls should be put in place during this time. These measures will provide an important contribution to ensuring the continuity of this species.https://cdn.istanbul.edu.tr/file/JTA6CLJ8T5/CE3658C27DAB44729EAA7FB4A59B0933destruction zonessand extraction activitiessand pitssediment effectsturbidity
spellingShingle Ataman Altuğ Atıcı
Mahmut Elp
Fazıl Şen
Effects of Total Suspended Solids at Different Levels on the Eggs and Larvae of Endemic Fish, Tarek (Alburnus tarichi Güldenstädt, 1814) in the Karasu River (Van, Turkey)
Aquatic Sciences and Engineering
destruction zones
sand extraction activities
sand pits
sediment effects
turbidity
title Effects of Total Suspended Solids at Different Levels on the Eggs and Larvae of Endemic Fish, Tarek (Alburnus tarichi Güldenstädt, 1814) in the Karasu River (Van, Turkey)
title_full Effects of Total Suspended Solids at Different Levels on the Eggs and Larvae of Endemic Fish, Tarek (Alburnus tarichi Güldenstädt, 1814) in the Karasu River (Van, Turkey)
title_fullStr Effects of Total Suspended Solids at Different Levels on the Eggs and Larvae of Endemic Fish, Tarek (Alburnus tarichi Güldenstädt, 1814) in the Karasu River (Van, Turkey)
title_full_unstemmed Effects of Total Suspended Solids at Different Levels on the Eggs and Larvae of Endemic Fish, Tarek (Alburnus tarichi Güldenstädt, 1814) in the Karasu River (Van, Turkey)
title_short Effects of Total Suspended Solids at Different Levels on the Eggs and Larvae of Endemic Fish, Tarek (Alburnus tarichi Güldenstädt, 1814) in the Karasu River (Van, Turkey)
title_sort effects of total suspended solids at different levels on the eggs and larvae of endemic fish tarek alburnus tarichi guldenstadt 1814 in the karasu river van turkey
topic destruction zones
sand extraction activities
sand pits
sediment effects
turbidity
url https://cdn.istanbul.edu.tr/file/JTA6CLJ8T5/CE3658C27DAB44729EAA7FB4A59B0933
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AT mahmutelp effectsoftotalsuspendedsolidsatdifferentlevelsontheeggsandlarvaeofendemicfishtarekalburnustarichiguldenstadt1814inthekarasurivervanturkey
AT fazılsen effectsoftotalsuspendedsolidsatdifferentlevelsontheeggsandlarvaeofendemicfishtarekalburnustarichiguldenstadt1814inthekarasurivervanturkey