Growth and length-weight relationships of Gambusia affinis (Baird et Girard, 1853) population in Algeria (Cyprinodontiformes Poeciliidae)

Sellaoui, Naima; Bounaceur, Farid

doi:10.31396/biodiv.jour.2020.11.4.951.959

Cited by 3 publications

(3 citation statements)

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“…The maximum length of females (4.8 cm) observed in the present study was similar or close to the length of 4.91 cm reported by Sellaoui and Bounaceur (2020) for Gambusia of Abadla dam and inferior to the other Gambusia populations of Oued Sebaine (6.02 cm), Gazelle fountain dam (6.402 cm) and Timimoune's foggara (5.9 cm). However, the maximum length obtained of males (6.4 cm) in the present study was slightly more than the length of Gambusia of Abadla dam (3.805 cm), Oued Sebaine (4.307 cm), Gazelle fountain dam (4.507 cm) and Timimoune's foggara (4.3 cm) reported by Sellaoui and Bounaceur (2020). The proportion of males increased in the large length classes oppositely to females.…”

Section: Malesupporting

confidence: 89%

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Eco-biological Study of the Mosquitofish Gambusia affinis from Oubeira lake

dis¹,

Kara

Bouamama

et al. 2022

JAFH

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Gambusia was studied in Oubeira lake in spring 2016. A total of 100 specimens were collected in the lake. The sex ratio was F:M = 5.12: 1. The length-weight relationship was estimated for the population, with Wt = 0.0197Lt2.4451. The condition factor was calculated C=1±0.2 (for population) and a significant difference was observed between males and females. For 100 examined stomachs, the diet mainly consists of algae (N=54.96%, Pi= 166%, O=91%), followed by the mosquito larvae (N=21.52%, Pi= 65%, O=49%), detritus (N=19.2%, Pi= 58%, O=46%) and arthropods (N=4.3%, Pi= 13%, O=13%). For mosquitoes, two genus were recorded: Culiseta and Culex with 4 species: Culex pipiens, Culex theileri, Culex laticinctus and Culex antennatus. The culture experiments confirmed the important predation on mosquito larvae was observed with feeding intensity for females and males of 86 ± 12.28 % and 92 ± 8 % for the Culex larvae and 91 ± 7 and 93.66 ± 5.68 for the Culiseta larvae, respectively. No significant difference was observed between the sexes or for mosquito larvae. Our data support the idea that the introduction of mosquitofish has both negative and positive effects since this fish feeds on the most abundant food and not only on mosquitoes.

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Section: Malesupporting

confidence: 89%

“…The proportion of males increased in the large length classes oppositely to females. This result was different and opposite from the values found by Sellaoui and Bounaceur (2020). Vargas and de Sostoa (1996) noted that females take more time to mature and continue to grow throughout their life.…”

Section: Malecontrasting

confidence: 74%

Eco-biological Study of the Mosquitofish Gambusia affinis from Oubeira lake

dis¹,

Kara

Bouamama

et al. 2022

JAFH

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“…In 2016, established G. a nis populations were studied in Oubeira lake (Chabet Dis, et al, 2022). Established G. a nis have been con rmed by sampling of multiple specimens at the Gazelle fountain dam in Biskra in 2007, Timimoune's foggara between 2010-11, wadi Sebaine in Tiaret between 2017-2018, and at a small dam in Bechar in 2018 (Sellaoui and Bounaceur, 2020). Gambusia spp.…”

Section: Algeriamentioning

confidence: 99%

A systematic review of poecilid fish invasions in Africa

Cairns,

de Bragança,

South

2024

Preprint

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Background. This review compiles and synthesises the existing information concerning non-native poecillid introductions to Africa. The recent upsurge in research on invasive poeciliids has revealed their widespread occurrence in Africa. Results. Within the 87 relevant articles, 74% reported on the presence Gambusia spp., 33% on P. reticulata, 19% on X. hellerii, 11% on X. maculatus, and 5% on other ornamental poeciliids. Overall, poeciliids have been introduced to 25 different countries in Africa, with Gambusia spp. being introduced to 16 countries and P. reticulata to 19 countries. Our results are representative of the current state of research on invasive poecilids in Africa. In particular there was a concentration of studies in South Africa, with limited research elsewhere. Current distribution data is relatively patchy, although widespread surveys of multiple river systems in Morocco and South Africa, confirmed widespread and abundant established poeciliid populations. The ecological impacts of invasive poeciliids in Africa remain understudied but evidence indicates deleterious effects on native fish, invertebrates, and amphibians, many of which are critically endangered or endemic species. Conclusion. An increased effort to monitor species composition in vulnerable waterbodies, especially in the many African countries where invasive poeciliids are reported should be completed and to reveal further established populations. Future research should prioritise quantifying the ecological impacts of invasive poeciliids in the field and identifying both vulnerable and resistant native ecosystems to guide future management decisions.

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A systematic review of poeciliid fish invasions in Africa

Pritchard Cairns,

de Bragança,

South

2024

BMC Ecol Evo

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Background This review compiles and synthesises the existing information concerning non-native poeciliid introductions to Africa. The recent upsurge in research on invasive poeciliids has revealed their widespread occurrence in Africa. Results Within the 87 relevant articles, 74% reported on the presence of Gambusia spp., 33% on P. reticulata, 19% on X. hellerii, 11% on X. maculatus, and 5% on other ornamental poeciliids. Overall, poeciliids have been documented as introduced to 25 different countries in Africa. With Gambusia spp. being introduced to 16 countries and P. reticulata to 19 countries. Our results are representative of the current state of research on invasive poeciliids in Africa. There was a concentration of studies in South Africa, with limited research elsewhere. Current distribution data is relatively patchy, although widespread surveys of multiple river systems in Morocco and South Africa, confirmed widespread and abundant established poeciliid populations. The ecological impacts of invasive poeciliids in Africa remain understudied but evidence indicates deleterious effects on native fish, invertebrates, and amphibians, many of which are critically endangered or endemic. Conclusion Current research is limited in reporting from certain countries and ecological impacts. An increased effort to monitor species composition in vulnerable waterbodies, especially in the many African countries where invasive poeciliids are reported, should be completed to reveal further established populations. Future research should prioritise quantifying the ecological impacts of invasive poeciliids in the field and identifying both vulnerable and resistant native ecosystems to guide future management decisions.

show abstract

Growth and length-weight relationships of Gambusia affinis (Baird et Girard, 1853) population in Algeria (Cyprinodontiformes Poeciliidae)

Cited by 3 publications

References 0 publications

Eco-biological Study of the Mosquitofish Gambusia affinis from Oubeira lake

Eco-biological Study of the Mosquitofish Gambusia affinis from Oubeira lake

A systematic review of poecilid fish invasions in Africa

A systematic review of poeciliid fish invasions in Africa

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