Do cage fish farms interfere with the food aspects of the wild species Metynnis lippincottianus (Characiformes, Serrasalmidae)?
We evaluated the differences in the diet and trophic guild of Metynnis lippincottianus under the influence of cage fish farms in the Neotropical reservoir. We collected samples from two areas (cage farm and control) in March and June 2019. Stomach contents were examined, and food items were identif...
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Instituto de Pesca
2022-12-01
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| Series: | Boletim do Instituto de Pesca |
| Online Access: | https://institutodepesca.org/index.php/bip/article/view/1755 |
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| author | Julia Kaori Kuriyama Ramos Vinicius Cesar do Bonfim Bruna Caroline Kotz Kliemann José Daniel Soler Garves Rosilene Luciana Delariva Igor Paiva Ramos |
| author_facet | Julia Kaori Kuriyama Ramos Vinicius Cesar do Bonfim Bruna Caroline Kotz Kliemann José Daniel Soler Garves Rosilene Luciana Delariva Igor Paiva Ramos |
| author_sort | Julia Kaori Kuriyama Ramos |
| collection | DOAJ |
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We evaluated the differences in the diet and trophic guild of Metynnis lippincottianus under the influence of cage fish farms in the Neotropical reservoir. We collected samples from two areas (cage farm and control) in March and June 2019. Stomach contents were examined, and food items were identified and quantified using the volumetric method. Differences in diet composition were evaluated using PERMANOVA and SIMPER analyses, while trophic niche breadth was determined using PERMDISP. The trophic guild for each area was also determined. Significant differences in diet between cage farm and control areas were observed, due to consumption of pelleted feed, microcrustaceans, Egeria sp., and filamentous algae. In both sampling areas, M. lippincottianus was classified as algivorous. Despite the pelleted feed consumption in the cage farm area, no differences were observed in trophic niche breadth and the trophic guild. In addition, algae and macrophytes still accounted for the majority of this species' diet in both areas, indicating partitioning of resources. This resource partitioning may favor coexistence, but it is worth mentioning that pelleted feed consumption still indicates the influence of cage fish farms on the diet of wild fish.
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| format | Article |
| id | doaj-art-ce03e40dfcdf4b8e8bf184869761671d |
| institution | OA Journals |
| issn | 1678-2305 |
| language | English |
| publishDate | 2022-12-01 |
| publisher | Instituto de Pesca |
| record_format | Article |
| series | Boletim do Instituto de Pesca |
| spelling | doaj-art-ce03e40dfcdf4b8e8bf184869761671d2025-08-20T02:03:47ZengInstituto de PescaBoletim do Instituto de Pesca1678-23052022-12-014810.20950/1678-2305/bip.2022.48.e722Do cage fish farms interfere with the food aspects of the wild species Metynnis lippincottianus (Characiformes, Serrasalmidae)?Julia Kaori Kuriyama Ramos0Vinicius Cesar do Bonfim1Bruna Caroline Kotz Kliemann2José Daniel Soler Garves3Rosilene Luciana Delariva4Igor Paiva Ramos5Universidade Estadual Paulista (UNESP), Faculdade de Engenharia, Ilha Solteira – Ilha Solteira (SP), BrazilUniversidade Estadual Paulista (UNESP), Faculdade de Engenharia, Ilha Solteira – Ilha Solteira (SP), BrazilUniversidade Estadual Paulista (UNESP), Instituto de Biociências – Botucatu (SP), BrazilUniversidade Estadual Paulista (UNESP), Instituto de Biociências – Botucatu (SP), BrazilUniversidade Estadual do Oeste do Paraná, Centro de Ciências Biológicas e da Saúde – Cascavel (PR), BrazilUniversidade Estadual Paulista (UNESP), Faculdade de Engenharia, Ilha Solteira – Ilha Solteira (SP), Brazil We evaluated the differences in the diet and trophic guild of Metynnis lippincottianus under the influence of cage fish farms in the Neotropical reservoir. We collected samples from two areas (cage farm and control) in March and June 2019. Stomach contents were examined, and food items were identified and quantified using the volumetric method. Differences in diet composition were evaluated using PERMANOVA and SIMPER analyses, while trophic niche breadth was determined using PERMDISP. The trophic guild for each area was also determined. Significant differences in diet between cage farm and control areas were observed, due to consumption of pelleted feed, microcrustaceans, Egeria sp., and filamentous algae. In both sampling areas, M. lippincottianus was classified as algivorous. Despite the pelleted feed consumption in the cage farm area, no differences were observed in trophic niche breadth and the trophic guild. In addition, algae and macrophytes still accounted for the majority of this species' diet in both areas, indicating partitioning of resources. This resource partitioning may favor coexistence, but it is worth mentioning that pelleted feed consumption still indicates the influence of cage fish farms on the diet of wild fish. https://institutodepesca.org/index.php/bip/article/view/1755 |
| spellingShingle | Julia Kaori Kuriyama Ramos Vinicius Cesar do Bonfim Bruna Caroline Kotz Kliemann José Daniel Soler Garves Rosilene Luciana Delariva Igor Paiva Ramos Do cage fish farms interfere with the food aspects of the wild species Metynnis lippincottianus (Characiformes, Serrasalmidae)? Boletim do Instituto de Pesca |
| title | Do cage fish farms interfere with the food aspects of the wild species Metynnis lippincottianus (Characiformes, Serrasalmidae)? |
| title_full | Do cage fish farms interfere with the food aspects of the wild species Metynnis lippincottianus (Characiformes, Serrasalmidae)? |
| title_fullStr | Do cage fish farms interfere with the food aspects of the wild species Metynnis lippincottianus (Characiformes, Serrasalmidae)? |
| title_full_unstemmed | Do cage fish farms interfere with the food aspects of the wild species Metynnis lippincottianus (Characiformes, Serrasalmidae)? |
| title_short | Do cage fish farms interfere with the food aspects of the wild species Metynnis lippincottianus (Characiformes, Serrasalmidae)? |
| title_sort | do cage fish farms interfere with the food aspects of the wild species metynnis lippincottianus characiformes serrasalmidae |
| url | https://institutodepesca.org/index.php/bip/article/view/1755 |
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