Do cage fish farms promote interference in the trophic niche of wild fish in neotropical reservoir?

Kliemann, Bruna Caroline Kotz; Delariva, Rosilene Luciana; Manoel, Letícia de Oliveira; Silva, Amanda Pereira dos Santos; Veríssimo‐Silveira, Rosicleire; Ramos, Igor Paiva

doi:10.1016/j.fishres.2021.106198

Cited by 8 publications

(7 citation statements)

References 43 publications

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“…Generally, the niche overlap characterizes the solidity of the interactions among the species in an ecosystem (MacArthur and Levins 1967; Abrams 1980; Badali and Zilman 2020). Eventually, the food availability effects these interactions (both the inter and intra species) in a greater way (Kliemann et al 2022).…”

Section: Discussionmentioning

confidence: 99%

Insights of under-water trophic interaction: A scenario in Chilika through the lens of Ecopath

Behera

Parida

Das

et al. 2022

Preprint

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Tropical ecosystems show tortuous trophic interaction/network for the ease flow of energy or matter among its components. Being one of the fundamental principles of ecology, the trophic interaction narrates the overview of feeding strategies, food habits of inhabitants or feeding patterns, food items of predators, and the ecological roles of the organisms in a particular ecosystem in terms of the prey-predator relationship. Ecological concepts like “keystone species”, “niche overlap” and “electivity or selection of diet” are part of it. In this investigation, the feeding interaction of the Chilika lagoon ecosystem has been appraised. Chilika lagoon is a well-known tropical ecosystem having a complex food network system of various flora and fauna including more than 200 species of finfish and shellfish. In this study, the “keystone species of the Chilika lagoon ecosystem”, “niche overlap pattern” and the “electivity” through the mass balanced ecopath model were investigated. In the keystone analysis, three keystone indices (KS1, KS2 and KS3) were applied and the groups like Irrawaddy dolphin, croakers and perches were identified as keystone species by more than two keystone indices. Based on the niche overlap study, 108 pairs were identified. Groups like prawns and crabs were found as the most niche overlapping group among all the organisms and contributed about 13 and 11 number pairs among the 108 niche sharing pairs. Similarly, the electivity of the ecological groups was analysed, and interestingly, almost all groups were showing negative index values for detritus and macrophytes. Benthic groups like prawns and crabs play a crucial ecological role in the food web dynamics of Chilika lagoon. This study will be helpful to understand the complex interaction among different trophic groups of Chilika.

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Section: Discussionmentioning

confidence: 99%

Insights of under-water trophic interaction: A scenario in Chilika through the lens of Ecopath

Behera

Parida

Das

et al. 2022

Preprint

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“…According to Nobile et al (2020), eutrophication can occur increasing in primary production and consequently reducing oxygen concentration and causing an of parasitic diseases in farmed and wild fish. In addition, there are reports of that the presence of cage fish farms interfere with community structure (Nobile et al, 2018), histopathological changes (Kliemann et al, 2018), reproductive influences (Brandão et al, 2014;Nobile et al, 2020), and changes in dietary aspects of wild fish (Barrett et al, 2018;Nobile et al, 2020;Kliemann et al, 2018Kliemann et al, , 2022.…”

Section: Introductionmentioning

confidence: 99%

“…Changes in wild fish feeding associated with cage fish farming are mainly reported for fish with opportunistic/generalist feeding behavior (Brandão et al, 2012(Brandão et al, , 2013(Brandão et al, , 2014Demétrio et al, 2012;Ramos et al, 2008Ramos et al, , 2013Kliemann et al, 2018Kliemann et al, , 2022. Species with opportunistic/generalist behavior use the most available food resources, regardless of the origin (plant, animal, autochthonous, and/or allochthonous) (Gerking, 1994;Abelha et al, 2001).…”

Section: Introductionmentioning

confidence: 99%

“…Species with opportunistic/generalist behavior use the most available food resources, regardless of the origin (plant, animal, autochthonous, and/or allochthonous) (Gerking, 1994;Abelha et al, 2001). Therefore, the presence of food items from cultivation cages, such as pelleted feed, may cause a decrease in the consumption of natural foods, affecting other trophic levels of the food chain (Demétrio et al, 2012;Ramos et al, 2013;Kliemann et al, 2018Kliemann et al, , 2022.…”

Section: Introductionmentioning

confidence: 99%

“…This species is native to the Amazon River, but its distribution covers South America (Froese and Pauly, 2019). According to studies carried out in Upper Paraná River basin the diet of M. lippincottianus is composed mainly of filamentous algae, terrestrial and aquatic plants, items of animal origin, and detritus (Ramos et al, 2008;Kliemann et al, 2022). Furthermore, depending in food availability, species of the genus Metynnis may use various tactics for feeding and exploring other trophic levels, demonstrating high trophic plasticity (Ramos et al, 2008;Kliemann et al, 2022).…”

Section: Introductionmentioning

confidence: 99%

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Do cage fish farms interfere with the food aspects of the wild species Metynnis lippincottianus (Characiformes, Serrasalmidae)?

et al. 2022

Self Cite

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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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Cage fish farming as a driver of changes in the functional diversity and structure of ichthyofauna in a Neotropical reservoir

Parra

Dias

Marques³

et al. 2023

Aquacult Int

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Do cage fish farms promote interference in the trophic niche of wild fish in neotropical reservoir?

Cited by 8 publications

References 43 publications

Insights of under-water trophic interaction: A scenario in Chilika through the lens of Ecopath

Insights of under-water trophic interaction: A scenario in Chilika through the lens of Ecopath

Do cage fish farms interfere with the food aspects of the wild species Metynnis lippincottianus (Characiformes, Serrasalmidae)?

Cage fish farming as a driver of changes in the functional diversity and structure of ichthyofauna in a Neotropical reservoir

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