Over-fishing in the Great Lakes: the context and history of the controversy

Regier, Henry A.; Whillans, Thomas H.; Christie, W. J.; Bocking, Stephen

doi:10.1080/14634989908656959

Cited by 9 publications

(7 citation statements)

References 29 publications

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“…During the 20th century, human-mediated effects such as overfishing, pollution, habitat degradation and invasive species directly affected the Great Lakes (Mills et al, 1994;Regier et al, 1999). These changes led to population declines and extinctions of many coregonines (Smith, 1968).…”

mentioning

confidence: 99%

Concordant patterns of morphological, stable isotope and genetic variation in a recent ecological radiation (Salmonidae: Coregonus spp.)

et al. 2022

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Groups of sympatric taxa with low interspecific genetic differentiation, but considerable ecological differences, offer great opportunities to study the dynamics of divergence and speciation. This is the case of ciscoes (Coregonus spp.) in the Laurentian Great Lakes, which are characterized by a complex evolutionary history and are commonly described as having undergone an adaptive radiation. In this study, morphometrics, stable isotopes and transcriptome sequencing were used to study the relationships within the Coregonus artedi complex in western Lake Superior. We observed general concordance for morphological, ecological and genomic variation, but the last was more taxonomically informative as it showed less overlap among species in multivariate space. Low levels of genetic differentiation were observed between individuals morphologically identified as Coregonus hoyi and C. zenithicus, which could be evidence of incomplete lineage sorting or recent hybridization between the two groups. Transcriptome‐based single nucleotide polymorphisms exhibited significant divergence for genes associated with vision, development, metabolism and immunity among species that occupy different habitats. This study highlights the importance of using an integrative approach when studying groups of taxa with a complex evolutionary history, as individual‐level analyses of multiple independent data sets can provide a clearer picture of the patterns and processes associated with the origins of biodiversity.

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confidence: 99%

Concordant patterns of morphological, stable isotope and genetic variation in a recent ecological radiation (Salmonidae: Coregonus spp.)

et al. 2022

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“…Several studies have been carried out on the impact of tourism based recreational fisheries worldwide (Coleman et al 2004;Steven and Cowx 2006;Cowx et al 2010) suggesting that tourism fishing is detrimental for fish conservation approaches (Regier et al,1999;Westera et al 2003). This fact, in general, has been acceptable.…”

Section: Possible Impacts Of Recreational Fishing Tourism On Fishers mentioning

confidence: 99%

Fishing Tourism can Support Fisher’s Livelihood and Fish Conservation in Nepal: A Value Chain Analysis

Gurung¹,

Thing²

2016

Hydro Nepal

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Fishing tourism of recreational fisheries is a multibillion dollar outdoor activity. The fishing tourism in Nepal is yet to be systematized. Focusing on this need, the present paper attempts to pioneer how recreational fisheries in Nepal could be useful having commendable world renounced fish resources, luring pristine and suitable scenic landscapes for promoting fishing tourism. It is argued that fishing tourism should be systematically regularized and practised in close collaboration with traditional ethnic fisher communities. Considering the potentiality, we elucidate the result of value chain analysis, arguing that promotion and streamlining of fishing tourism along with the traditional fishers could generate immense livelihood opportunities for resilience along with fish conservation. The value chain analysis showed that livelihood of fishers communities are likely to be enhanced by involving in fishing based tourism support services with fewer fishing activities, which in turn could be supportive to fish conservation. The present modality of promoting and systematizing fishing tourism might have implication to address the issues of poverty alleviation and resilience to fish conservation in many developing countries having similar socio-economic and agroecological setups in Nepal.

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“…), and passenger pigeon ( Ectopistes migratorius ), lesser known are the many examples of fish, where 57 taxa have become extinct between 1898 and 2006 (Burkhead 2012 ). As described by Regier et al ( 1999 ), fish communities near larger settled areas in the Laurentian Great Lakes “hit the wall” ecologically beginning in the late 1800s as a result of over-fishing. Although overfishing remains near all-time lows in the USA at present (NOAA 2021 ), the historical impact has been significant (Smith 1968 ; Regier et al 1999 ; Jackson et al 2001 ).…”

Section: Introductionmentioning

confidence: 98%

“…As described by Regier et al ( 1999 ), fish communities near larger settled areas in the Laurentian Great Lakes “hit the wall” ecologically beginning in the late 1800s as a result of over-fishing. Although overfishing remains near all-time lows in the USA at present (NOAA 2021 ), the historical impact has been significant (Smith 1968 ; Regier et al 1999 ; Jackson et al 2001 ). The first population of fish to disappear from North America was the Atlantic salmon ( Salmo salar ) of Lake Ontario (Burkhead 2012 ).…”

Section: Introductionmentioning

confidence: 98%

Human induced fish declines in North America, how do agricultural pesticides compare to other drivers?

Brain

Prosser

2022

Environ Sci Pollut Res

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Numerous anthropogenic factors, historical and contemporary, have contributed to declines in the abundance and diversity of freshwater fishes in North America. When Europeans first set foot on this continent some five hundred years ago, the environment was ineradicably changed. Settlers brought with them diseases, animals, and plants via the Columbian Exchange, from the old world to the new, facilitating a process of biological globalization. Invasive species were thus introduced into the Americas, displacing native inhabitants. Timber was felled for ship building and provisioning for agriculture, resulting in a mass land conversion for the purposes of crop cultivation. As European colonization expanded, landscapes were further modified to mitigate against floods and droughts via the building of dams and levees. Resources have been exploited, and native populations have been overfished to the point of collapse. The resultant population explosion has also resulted in wide-spread pollution of aquatic resources, particularly following the industrial and agricultural revolutions. Collectively, these activities have influenced the climate and the climate, in turn, has exacerbated the effects of these activities. Thus, the anthropogenic fingerprints are undeniable, but relatively speaking, which of these transformative factors has contributed most significantly to the decline of freshwater fishes in North America? This manuscript attempts to address this question by comparing and contrasting the preeminent drivers contributing to freshwater fish declines in this region in order to provide context and perspective. Ultimately, an evaluation of the available data makes clear that habitat loss, obstruction of streams and rivers, invasive species, overexploitation, and eutrophication are the most important drivers contributing to freshwater fish declines in North America. However, pesticides remain a dominant causal narrative in the popular media, despite technological advancements in pesticide development and regulation. Transitioning from organochlorines to organophosphates/carbamates, to pyrethroids and ultimately to the neonicotinoids, toxicity and bioaccumulation potential of pesticides have all steadily decreased over time. Concomitantly, regulatory frameworks designed to assess corresponding pesticide risks in Canada and the USA have become increasingly more stringent and intensive. Yet, comparatively, habitat loss continues unabated as agricultural land is ceded to the frontier of urban development, globalized commerce continues to introduce invasive species into North America, permanent barriers in the form of dams and levees remain intact, fish are still being extracted from native habitats (commercially and otherwise), and the climate continues to change. How then should we make sense of all these contributing factors? Here, we attempt to address this issue.

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Over-fishing in the Great Lakes: the context and history of the controversy

Cited by 9 publications

References 29 publications

Concordant patterns of morphological, stable isotope and genetic variation in a recent ecological radiation (Salmonidae: Coregonus spp.)

Concordant patterns of morphological, stable isotope and genetic variation in a recent ecological radiation (Salmonidae: Coregonus spp.)

Fishing Tourism can Support Fisher’s Livelihood and Fish Conservation in Nepal: A Value Chain Analysis

Human induced fish declines in North America, how do agricultural pesticides compare to other drivers?

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