Fishing historical sources: a snapshot of 19th-century freshwater fauna in Spain

Reviews in Fish Biology and Fisheries, Journal Year: 2023, Volume and Issue: 33(4), P. 1353 - 1369

Published: Jan. 3, 2023

Abstract Historical information is needed to describe in a robust manner long-term changes the distribution of organisms, although it general scarce or contained non-scientific sources. Gazetteers (or geographical dictionaries) constitute potential source historical species records, which has not been accurately explored yet. The dictionary edited by Pascual Madoz between 1845 and 1850 extensively described geography, population socioeconomic aspects Spain. included abundant on wild animals plants, with special focus socioeconomically relevant species. Here, we present database generated collecting georeferencing mentions freshwater fauna records Madoz, includes 10,750 occurrence 39 freshwater-associated taxa from 5,472 localities. This made public usable (following FAIR criteria) GBIF. Most correspond fish (10,201 94.9% total; 33 taxa), followed crayfish (418 3.9% one species). Annelids (one taxon), amphibians reptiles taxon) mammals (three species) sum up 132 (1.2% total). presented here can be used estimate baseline ranges many species, should inform present-day management for conservation recovery endangered communities. Graphical abstract

Language: Английский

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Bioecological Attributes as Predictors of Global Extinction Risk for Marine Chondrichthyans (Chondrichthyes, Huxley, 1880)

Aquatic Conservation Marine and Freshwater Ecosystems, Journal Year: 2024, Volume and Issue: 34(8)

Published: Aug. 1, 2024

ABSTRACT Marine chondrichthyans are experiencing a global decline, but identifying appropriate conservation actions is challenging due to the lack of basic biological information, such as growth parameters and reproduction. In this study, we identify ecological attributes that can be both easily obtainable effective predictors extinction threat. A bioecological attribute database was constructed for marine chondrichthyan species, including information on maximum length, habitat, reproductive mode, trophic level status, among others. Data sources included Shark‐References, IUCN FishBase databases. Following this, generalized linear model built with status response variable explanatory variables, model's accuracy tested each group. Then, applied species not yet classified (data deficient [DD] or evaluated [NE]) determine their probability risk. total, data were compiled 1225 Chondrichthyes (537 sharks, 636 rays 52 chimaeras); approximately 20% these DD NE. The demonstrated high overall: 95% chimaeras, 77% 72% sharks. Our analysis indicates that, NE, 58% rays, 44% sharks 66% chimaeras may at risk extinction. These results clearly demonstrate how serve proxies in provide solid foundation planning prioritization ecologically important poor taxon.

Language: Английский

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Global Warming and Fish Diversity Changes in the Po River (Northern Italy)

Environments, Journal Year: 2024, Volume and Issue: 11(10), P. 226 - 226

Published: Oct. 17, 2024

In the context of climate change, current rise in temperature, changes precipitation, and extreme weather events are exceptional impact biodiversity. Using Mann–Kendall trend test, change-point analysis, linear mixed models, we investigated long-term trends (1978–2022) water temperature flow Po River, Italy’s largest river, examined fish community over same period. Our findings indicate that daily River increased by ~4 °C from 1978 to 2022, with a significant starting 2005. The river’s discharge showed higher variability decreased 2003 onwards. number days per year temperatures above summer average steadily 1 day year, resulting 40 additional above-average last four decades. seasonal was most influential factor affecting diversity. Total species richness native significantly between 2022 increasing while non-native increased. results demonstrate is experiencing impacts global warming, freshwater communities.

Language: Английский

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Assessing scientific knowledge on Ecuadorian bony fishes from a scientometric perspective

Journal of Fish Biology, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 9, 2024

Abstract Bony fishes play a pivotal role in Ecuador's social, economic, and ecological aspects. However, the current state of scientific knowledge on this group remains poorly understood. This study aims to assess output related Ecuadorian bony fishes, identifying both well‐researched understudied areas. A scientometric analysis was conducted using Scopus database, evaluating 265 peer‐reviewed publications marine freshwater fishes. The results revealed that 55.5% studies focused environments, 41.9% ecosystems, 2.6% mixed environments. earliest published more than 130 years ago, with marked increase research since 2018. Geographic regional disparities efforts were evident, Galapagos Islands hosting highest number at provincial level coastal region leading publications. Additionally, there has been notable participation women over time; however, it significantly below parity. English dominant language these On average, delay between data collection publication 8.43 years, which may lead outdated or ineffective management decisions. underscores importance continually updating ensure accuracy conservation status assessments. Both species endemic have less studied compared non‐endemic species. Most categorized as “least concern,” although significant proportion classified “data deficient” started be investigated by researchers. categories “endangered” “near threatened” least studied, highlighting urgent need for initiatives targeting vulnerable taxa. Biases among families, species, geographic distribution indicate expand underrepresented taxa regions. necessity diversifying methodologies broadening focus comprehensively address challenges associated Ecuador.

Language: Английский

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A review on comparative analysis of marine and freshwater fish gut microbiomes: insights into environmental impact on gut microbiota

FEMS Microbiology Ecology, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 24, 2024

Abstract The gut microbiota, which includes prokaryotes, archaea, and eukaryotes like yeasts, some protozoa, fungi, significantly impact fish by affecting digestion, metabolism, the immune system. In this research, we combine various tasks carried out bacteria in of fish. This study also examines microbiome composition marine freshwater fish, identifying important bacterial species linked to different biological functions. diversity within highlights importance considering nutrition, habitat, environmental factors microbiological research on ever-changing indicates that microbial communities are specifically adapted meet needs both host its environment. can adjust a specific environment with help microbiota. is crucial for comprehending complex relationships between their aquatic environments. These discoveries have implications aquaculture practices, fisheries administration, broader ecological processes With further progress area study, knowledge acquired would offer valuable standpoint enhance our comprehension microbiology sustainability nutrition resources.

Language: Английский

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