Worldwide freshwater fish homogenization is driven by a few widespread non-native species

Toussaint, Aurèle; Beauchard, Olivier; Oberdorff, Thierry; Brosse, Sébastien; Villéger, Sébastien

doi:10.1007/s10530-016-1067-8

Cited by 74 publications

(61 citation statements)

References 41 publications

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“…These factors are significantly altered to food security policy [47,48] and abundance [49][50][51][52]. Non-native fishes are also changed selectivity of gear due to nature, dwelling behaviour and ecological condition [53][54][55].…”

Section: Malementioning

confidence: 99%

Size Selectivity of Active Fishing Gear: Changes in Size, Age and Growth of Cirrhinus Mrigala from the Ganga River, India

Ch¹,

Dwivedi²,

Mayank³

et al. 2017

Fish Aquac J

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Good knowledge of netting approach is essential for scientific and sustainable based fisheries management in lotic water bodies. The large sizes of fishes are more attract to fishers compared to small fishes. This type of fishing is very harmful for future stock and recruitment. 1.5 inch to 3.5 inch mesh size cast net was used in the Ganga River at Allahabad. Cirrhinus mrigala is mainly captured by drag net from the Ganga River, India. Studies were undertaken during March 2014 to February 2015 from the middle stretch of the Ganga River, India. 423 fish specimens (206 males and 217 females) were examined of Cirrhinus mrigala. An over-all picture of age, growth increment and age composition of C. mrigala has been obtained by the study of its scales. The age composition of C. mrigala varied from 0+ to 10+. On the basis of pooled sampled specimen in the total length ranges varied from 16.8 cm to 92.4 cm showed that the fish attained the mean length 30.24 cm, 48.02 cm, 61.50 cm, 70.31, 77.63, 81.84 cm, 85.30 cm, 88.57 cm, 90.15 cm, 91.8 cm in 1+, 2+, 3+, 4+, 5+, 6+, 7+, 8+, 9+ and 10+ age groups respectively. The growth increments in C. mrigala was recorded as 30.24 cm, 17.78 cm, 13.48 cm, 8.81 cm, 7.32 cm, 4.21 cm, 3.46 cm, 3.27 cm, 1.58 cm and 1.65 cm for 1+ to 10+ age groups, respectively. The maximum growth increment was recorded in 1st year and minimum in 9th year of life. The slow growth increment observed after third year may be attributed to the maturity attained after second year of life. It is well known that the growth potential is used for the gonad development. Drag netting is reducing the size of C. mrigala in the Ganga River.

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Section: Malementioning

confidence: 99%

Size Selectivity of Active Fishing Gear: Changes in Size, Age and Growth of Cirrhinus Mrigala from the Ganga River, India

Ch¹,

Dwivedi²,

Mayank³

et al. 2017

Fish Aquac J

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“…Today, more than 600 freshwater fish species have been introduced into areas outside their native range globally [16], which resulted in that more than half of the river basins across the world host at least one alien fish species [17]. Among these 600 species, Toussaint et al [18] found that 14 are present into at least one of the 1054 river basins studied in the 6 biogeographic realms defined by [19]: Afrotropical, Australian, Nearctic, Neotropical, Oriental, and Paleartic. Three species are present in all six realms: rainbow trout (Oncorhynchus mykiss), common carp (Cyprinus carpio), mosquitofish (Gambusia affinis), and three more, goldfish (Carassius auratus), sea trout (Salmo trutta), and Eastern mosquitofish (Gambusia holbrooki) in five realms [18].…”

Section: Introductionmentioning

confidence: 99%

“…Among these 600 species, Toussaint et al [18] found that 14 are present into at least one of the 1054 river basins studied in the 6 biogeographic realms defined by [19]: Afrotropical, Australian, Nearctic, Neotropical, Oriental, and Paleartic. Three species are present in all six realms: rainbow trout (Oncorhynchus mykiss), common carp (Cyprinus carpio), mosquitofish (Gambusia affinis), and three more, goldfish (Carassius auratus), sea trout (Salmo trutta), and Eastern mosquitofish (Gambusia holbrooki) in five realms [18]. These few alien species contribute the most to the global homogenization pattern, whereas most introduced species have low impact on the global change in dissimilarity, i.e., beta-diversity [18].…”

Section: Introductionmentioning

confidence: 99%

“…Three species are present in all six realms: rainbow trout (Oncorhynchus mykiss), common carp (Cyprinus carpio), mosquitofish (Gambusia affinis), and three more, goldfish (Carassius auratus), sea trout (Salmo trutta), and Eastern mosquitofish (Gambusia holbrooki) in five realms [18]. These few alien species contribute the most to the global homogenization pattern, whereas most introduced species have low impact on the global change in dissimilarity, i.e., beta-diversity [18]. The authors thus concluded that focusing conservation efforts in controlling the spread of these few species may be more relevant to counteract the global homogenization trend [18].…”

Section: Introductionmentioning

confidence: 99%

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Alien Fish Species in France with Emphasis on the Recent Invasion of Gobies

Teletchea¹,

Jean-Nicolas²

2018

Biological Resources of Water

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Introduction of alien species constitutes worldwide one of the major threats to biodiversity, particularly in freshwater ecosystems. In France, the number of alien aquatic plant and animal species has increased exponentially over time in freshwater ecosystems and shows no sign of decreasing. For fish only, more than 40 alien species have been either voluntary or involuntary introduced in the past decades. About two-thirds are still present today and at least 26 are naturalized. As in many European countries, the fish introduction history in France switched from voluntary introduction in the nineteenth century (aquaculture, sport fishing, and management of ecosystems) to unintentional but humanaided introductions (aquarium trade and global ship transport). The negative impacts of alien species on native species and ecosystems are most often unknown in France and needs further studies to develop a functional policy on alien species introductions and the protection of aquatic ecosystems integrity. The information gathered allow discussing the possible reasons explaining whether an alien species is able or not to establish sustainable populations in France and thereafter became invasive, such as gobies recently arrived.

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“…Freshwater fish introduction is a major issue for aquatic biodiversity and environmental conservation in continents all over the world, with at least 624 species introduced so far in the six biogeographic realms (Fuller et al, 1999;Toussaint et al, 2016). In Brazil, since the beginning of the last century, more than 150 non-native species have been introduced from other continents and other regions of the country, either intentionally or unintentionally, mainly due to aquaculture, fishery improvement and ornamental trade (Welcomme, 1988;Alves et al, 2007;Vitule, 2009;Magalhães et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

Novelty on the market, novelty in the environment: The invasion of non-native fish jaguar guapote (Perciformes) in northeastern Brazil

França

Almeida

Neto

et al. 2017

Neotropical Biology and Conservation

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In Brazil, more than 150 non-native fish species have been introduced either intentionally or unintentionally, mainly due to aquaculture, fishery improvement and ornamental trade. The non-native jaguar guapote Parachromis managuensis was recorded in two artificial ponds, four rivers, one stream and two reservoirs, ecosystems belonging to the Una, Ipojuca, Capibaribe and Pajeú River basins, Pernambuco, northeastern Brazil. The sampling period was between October 2006 and July 2015. A total of 376 individuals of P. managuensis was captured by seines, casting nets and gillnets. This species may have been introduced in the study sites by accidental release during pond drainage in fish farms, stocking for the purpose of animal protein production or by aquarium dumping. The presence of various ontogenetic life stages in all studied environments is a strong evidence that the species is established. Seven management actions are proposed to prevent further introductions of P. managuensis in other environments of the region.

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Worldwide freshwater fish homogenization is driven by a few widespread non-native species

Cited by 74 publications

References 41 publications

Size Selectivity of Active Fishing Gear: Changes in Size, Age and Growth of Cirrhinus Mrigala from the Ganga River, India

Size Selectivity of Active Fishing Gear: Changes in Size, Age and Growth of Cirrhinus Mrigala from the Ganga River, India

Alien Fish Species in France with Emphasis on the Recent Invasion of Gobies

Novelty on the market, novelty in the environment: The invasion of non-native fish jaguar guapote (Perciformes) in northeastern Brazil

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