Designing a global assessment of climate change on inland fishes and fisheries: knowns and needs

Paukert, Craig P.; Lynch, Abigail J.; Beard, T. Douglas; Chen, Yushun; Cooke, Steven J.; Cooperman, Michael S.; Cowx, I. G.; Ibengwe, Lilian J.; Infante, Dana M.; Myers, Bonnie J. E.; Nguyễn, Hòa Phú; Winfield, Ian J.

doi:10.1007/s11160-017-9477-y

Cited by 26 publications

(13 citation statements)

References 93 publications

(123 reference statements)

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“…Our study also revealed that annual mean temperature and rainfall are important in structuring fish assemblage patterns, showing that Chinese freshwater fish assemblages may be particularly vulnerable to climate change (Buisson, Thuiller, Lek, Lim, & Grenouillet, ; Poesch, Chavarie, Chu, Pandit, & Tonn, ). In effect, a change in the patterns of these climatic factors could alter fish assemblage structure, growth and recruitment (Lynch et al, ; Paukert et al, ).…”

Section: Discussionmentioning

confidence: 99%

Biogeographic freshwater fish pattern legacy revealed despite rapid socio‐economic changes in China

et al. 2019

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Understanding drivers of freshwater fish assemblages is critically important for biodiversity conservation strategies, especially in rapidly developing countries, which often have environmental protections lagging behind economic development. The influences of natural and human factors in structuring fish assemblages and their relative contributions are likely to change given the increasing magnitude of human activities. To discriminate natural and human drivers of fish diversity and assemblage patterns in developing countries with rapid socio‐economic development, a dataset of 908 freshwater fish species and 13 metrics including three categories of both natural (i.e., biogeographic) and human drivers (i.e., economic growth, inland fisheries) in China were analysed with machine learning algorithms (i.e., self‐organizing map, random forest). Here, we found that biogeographic drivers explained 21.8% of the observed fish assemblage patterns in China and remained stronger predictors when compared to human drivers (i.e., 15.6%, respectively). Freshwater fish species richness was positively correlated to rainfall, air temperature, surface water area and inland fisheries production but negatively correlated with urbanization. In addition, the strong structuring effects of climatic variables on Chinese fish richness patterns suggested that the fish assemblages could be particularly vulnerable to climate change. Our results showed that natural biogeographic factors still dominate in driving freshwater fish assemblage patterns despite increased human disturbances on aquatic ecosystems in a rapidly developing country. These findings consequently suggested that we should consider both natural (e.g., climate) and human (e.g., urbanization, inland fisheries) factors when establishing aquatic conservation strategies and priorities for developing countries that are experiencing rapid socio‐economic changes.

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Section: Discussionmentioning

confidence: 99%

Biogeographic freshwater fish pattern legacy revealed despite rapid socio‐economic changes in China

et al. 2019

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“…In order to improve the sustainability of the European seafood production, it is necessary to identify the potential challenges and opportunities caused by climate change for each of the producing nations within the three production sectors. A vulnerability assessment at regional and sectorial level is recommended in this context (Paukert et al, 2017). We explore and discuss the vulnerability of seafood production volume to climate warming within three production sectors in each European country, by combining information on the seafood's affinity to temperature, its life history characteristics, and production volumes of the main species.…”

Section: Introductionmentioning

confidence: 99%

How vulnerable is the European seafood production to climate warming?

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The main challenge for the European seafood industry is to ensure sustainable production volume while adapting to climate warming. Marine fisheries mainly target 41 species which account for 80% of the seafood production in Europe. The remaining 20% comes from marine and freshwater aquaculture, which harvest mainly 5 and 11 species, respectively. European seafood production volume (2004-2014) recorded by FAO was combined with indices of temperature sensitivity and biological sensitivity (BS) based on the life histories of the main exploited species. We found that the marine sectors are more vulnerable to global warming than the freshwater sector. The vulnerability to warming of a country's production is defined by the temperature sensitivity and the BS of the main exploited seafood species, weighted by their production volume. Production vulnerability in the marine sector increases with latitude due to the temperature sensitivity of the harvested species and their high production volume. No such gradient is found in the freshwater sector because most of the production is based on two species with opposite temperature sensitivity. To ensure a sustainable European seafood production, national climate strategies and action plans should include both fisheries and aquaculture and be integrated at a regional level.

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“…Many fishes targeted by anglers face various threats, resulting in reduced populations (e.g. Forseth et al, ; Kerr et al, ; Lucas & Baras, ; Paukert et al, ), and thereby a reduced harvestable surplus available for fisheries. Catch and release (C&R), which refers to live fish being released to the waters where they were captured after being angled, is a conservation practice that has been adopted by fishers and managers to reduce the potential effects of angling on fish populations while still maintaining recreational fisheries (Arlinghaus et al, ).…”

Section: Introductionmentioning

confidence: 99%

The risk of individual fish being captured multiple times in a catch and release fishery

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et al. 2019

Fisheries Management Eco

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The proportion of angled Atlantic salmon Salmo salar L. being caught and released has increased. If individuals are repeatedly captured, this may have fish welfare consequences. Of 995 Atlantic salmon tagged during catch and release in eight Norwegian rivers, 10% were captured twice, while 3% were captured three times within the same fishing season. The probability that released salmon were captured again decreased with decreasing time left of the fishing season, decreased for larger‐sized fish and varied among rivers/years. Increased exploitation rates within the river, indicating an increased fishing pressure, strongly increased the probability that fish would be recaptured. However, the proportion of salmon caught a second time was much lower than the total exploitation rates in the same rivers (which was on average 46%). For fish tagged in the sea, the likelihood of being angled decreased with time since entering the river, which may explain why the recapture rates of caught and released fish were lower than the total exploitation rates.

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Designing a global assessment of climate change on inland fishes and fisheries: knowns and needs

Cited by 26 publications

References 93 publications

Biogeographic freshwater fish pattern legacy revealed despite rapid socio‐economic changes in China

Biogeographic freshwater fish pattern legacy revealed despite rapid socio‐economic changes in China

How vulnerable is the European seafood production to climate warming?

The risk of individual fish being captured multiple times in a catch and release fishery

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