Illegal unregulated and unreported fishing: Methods and increasing trends in Lake Naivasha, Kenya

Morara, George N.; Njiru, James; Getabu, Albert; Omondi, Reuben; Lewo, Ruth M.; Obegi, Beatrice; Mwangata, Raymond

doi:10.1111/lre.12341

Cited by 3 publications

(2 citation statements)

References 18 publications

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“…Additionally, the introduction of non‐native fish species and other aquatic organisms disrupted native communities and led to the displacement or extinction of native species (Bissattini et al, 2021; Haubrock, Balzani, et al, 2020; Haubrock, Pilotto, & Haase, 2020; Roseman et al, 2009). These factors collectively can lead to the collapse of entire fisheries and the loss of important ecosystem services (Gherardi et al, 2011; Morara et al, 2021), underlining the urgent need to investigate how freshwater communities have changed over time.…”

Section: Introductionmentioning

confidence: 99%

How fish populations in Lake Bafa (Western Anatolia) respond to ecological shifts

Kurtul,

Kaya,

Kaykaç

et al. 2024

Aquatic Conservation

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Long‐term biodiversity monitoring is crucial for freshwater ecosystems as it enables the detection of even subtle changes and biodiversity trends, guiding conservation efforts and ensuring the sustainability of these vital habitats. Despite becoming more commonly considered in the field of freshwater ecology and biological invasions, studies using long‐term time series from Türkiye's freshwater resources have remained scarce. To assess the availability of data and ultimately present a baseline for future efforts, we combined published museum records and samples from recent field studies from the highly anthropogenically‐altered Lake Bafa in Western Anatolia covering the period 1958–2019. Lake Bafa has a very diverse aquatic ecosystem, providing habitat for both freshwater and saltwater species, and is one of the allottees in Türkiye's inland fish production. In the current study, we investigated how fish populations in Lake Bafa were affected by environmental changes and examined changes in taxonomic and functional diversity of non‐native species over time. The analyses revealed—concomitant to an increase in native marine and freshwater species richness—an increase in non‐native species richness over time. Non‐native species did not interfere with native species' niche space, whereas applied models indicate that in this highly altered ecosystem, foremost temperature and salinity shaped the fish community over time, limiting the impacts of non‐native species. These results have implications for the fishery of the lake, which includes highly valuable catadromous fish species, highlighting the value and importance of collecting long‐term data in Türkiye to better understand both invasion dynamics and changes in the naturality of Turkish ecosystems. These findings further underline the importance of long‐term data to create new management strategies for the lake and to start restoration processes, thus improving fisheries management.

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Section: Introductionmentioning

confidence: 99%

How fish populations in Lake Bafa (Western Anatolia) respond to ecological shifts

Kurtul,

Kaya,

Kaykaç

et al. 2024

Aquatic Conservation

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show abstract

“…These factors collectively can lead to the collapse of entire sheries and the loss of important ecosystem services 10,11 , underlining the urgent need to investigate how freshwater communities have changed over time.…”

Section: Introductionmentioning

confidence: 99%

Adapting to Change: How Fish Populations Responds to Ecological Shifts

Kurtul

Haubrock

Kaya

et al. 2023

Preprint

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Invasive species are a significant threat to natural biodiversity and human well-being. Despite becoming more commonly considered in the field of biological invasion, studies using long-term time series from Türkiye`s freshwater resources have remained scarce. To fill this gap, we used nine time series from the highly anthropogenically-altered Lake Bafa in Western Anatolia sampled between 1958 and 2019. We investigate how fish populations in Lake Bafa were affected by environmental changes and examined changes in taxonomic and functional diversity of non-native species over time. The analyses revealed an increase in non-native species richness over time. Non-native species did not interfere with native species' niche space, whereas applied models indicate that in this highly altered ecosystem, foremost temperature and salinity shaped the fish community over time, limiting the impacts of non-native species. These results have implications for the fishery of the lake, which include highly valuable catadromous fish species, highlighting the value and importance of long-term data for the study of freshwater ecology to better understand both invasion dynamics and changes in the naturality of ecosystems. These findings further underline the importance of long-term data to create new management strategies for the lake and start restoration processes, thus improving fisheries management.

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Determinants of access to marine cultural heritage assets for poverty alleviation in the coastal communities of Kilwa and Bagamoyo in Tanzania

Kabyemela,

Mugobi,

Mjema

2024

Journal of Community Archaeology & Heritage

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Illegal unregulated and unreported fishing: Methods and increasing trends in Lake Naivasha, Kenya

Cited by 3 publications

References 18 publications

How fish populations in Lake Bafa (Western Anatolia) respond to ecological shifts

How fish populations in Lake Bafa (Western Anatolia) respond to ecological shifts

Adapting to Change: How Fish Populations Responds to Ecological Shifts

Determinants of access to marine cultural heritage assets for poverty alleviation in the coastal communities of Kilwa and Bagamoyo in Tanzania

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