Factors resulting in decline of the endangered Sonoran topminnow Poeciliopsis occidentalis (Atheriniformes: Poeciliidae) in the United States

Meffe, Gary K.; Hendrickson, Dean A.; Minckley, W. L.; Rinne, John N.

doi:10.1016/0006-3207(83)90057-5

Cited by 78 publications

(55 citation statements)

References 26 publications

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“…Barrington (1957) y Meffe y Snelson (1989 mencionan que la dieta de los poecilidos es comúnmente reflejada por su morfología, dado que los dientes y la estructura del intestino son indicadores de las preferencias de la dieta. De esta manera, los dientes fuertes y cónicos, asociados a pequeños intestinos son típicos de especies depredadoras, características que en el presente estudio corresponden a H. bimaculata, las mismas peculiaridades han sido registradas en B. belizanus, G. affinis (Meffe et al 1983, Turner y Snelson 1984. En cambio las especies omnívoras-detritívoras presentan un intestino largo y dientes espatulados, rasgos que fueron observados en P. sphenops en el presente estudio, y que han sido encontradas también en Poeciliopsis sp., reportada como especie detritívora (Vrijenhoek y Schultz 1974, Schoener 1981) y en Poeciliopsis occidentalis que es ramoneadora (Meffe 1984).…”

Section: Discussionunclassified

Alimentación de los peces dulceacuícolas tropicales Heterandria bimaculata y Poecilia sphenops (Cyprinidontiformes: Poeciliidae)

Trujillo-Jiménez¹,

Beto²

2007

RBT

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Section: Discussionunclassified

Alimentación de los peces dulceacuícolas tropicales Heterandria bimaculata y Poecilia sphenops (Cyprinidontiformes: Poeciliidae)

Trujillo-Jiménez¹,

Beto²

2007

RBT

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“…Various field studies in the United States (Rinne et al 1981;Meffe 1983;Meffe et al 1983) have illustrated the difficulties involved in completely removing introduced fish species from a habitat using piscicides. Meffe (1983) suggests that repeated applications over several months or years may be the only reliable method of managing a habitat through chemical treatment.…”

Section: Management Of Mosquitofish In Wetlands Using Rotenonementioning

confidence: 99%

Sensitivities of mosquitofish and black mudfish to a piscicide: Could rotenone be used to control mosquitofish in New Zealand wetlands?

Willis

Ling²

2000

New Zealand Journal of Zoology

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The comparative sensitivities of mosquitofish (Gambusia affinis) and black mudfish (Neochanna diversus) to the piscicide rotenone were investigated to determine whether it is feasible to use rotenone to control mosquitofish in wetlands inhabited by mudfish. Mosquitofish were exposed to four nominal rotenone concentrations (56, 79, 112, 158 µg.L -1 ) and the time taken for 50% (ET50) and 90% (ET90) of individuals to gasp at the water surface was recorded. Fish were removed from the rotenone at this stage and placed in rotenone-free water to recover. Mudfish were exposed to a single nominal rotenone concentration (100 µg.L -1 ), and removed when hanging at the surface and gulping air. The response time of mosquitofish decreased with concentration. Mean ET50 values were 158 and 26 min for 56 and 158 µg.L -1 rotenone, respectively. Mean ET90 values were 246 and 36 min, respectively. Mudfish were approximately twice as sensitive as mosquitofish to 100 µg.L -1 rotenone. All mudfish recovered following exposure to rotenone. The management implications of the findings are discussed. We suggest that if rotenone were to be used to control mosquitofish in wetlands, it could be applied in summer to remnant standing water as repeated doses of 100-200 µg.L -1 .

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“…Approximately 69% of Sonoran topminnows exhibited caudal fin damage in systems with western mosquitofish, while individuals collected prior to mosquitofish introductions had no fin damage (Meffe 1985). Similar results were found in laboratory experiments; within one hour of exposure to mosquitofish, most Sonoran topminnows had damaged fins from attacks, which led to mortality for some individuals (Schoenherr 1981;Meffe et al 1983). In our study, one northern starhead topminnow had all its fins bitten off by western mosquitofish and was unable to escape subsequent attacks.…”

Section: Discussionmentioning

confidence: 65%

“…Agonistic behaviors, such as chasing and nipping, can negatively impact less aggressive fishes. Nipping causes fin damage, which may lead to secondary infection, reduce the ability to forage effectively or escape predators, and cause mortality (Meffe et al 1983;Abbott and Dill 1985). In laboratory studies, more than half of Sonoran topminnows Poeciliopsis occidentalis sonoriensis had fin damage in the presence of western mosquitofish; however, no fish had fin damage in aquaria without mosquitofish (Meffe 1985).…”

Section: Introductionmentioning

confidence: 99%

Agonistic behavioral interactions between introduced western mosquitofish and native topminnows

Sutton

Zeiber

Fisher

2013

Journal of Freshwater Ecology

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The stocking of western mosquitofish Gambusia affinis for mosquito control negatively impacts native fishes with similar ecological requirements. In this study, a series of laboratory microcosm experiments was used to examine intra and interspecific agonistic behavioral interactions (e.g., chases and nips) between western mosquitofish and northern starhead topminnow Fundulus dispar, northern studfish F. catenatus, blackstripe topminnow F. notatus, and banded killifish F. diaphanous at three fish densities and in the presence/absence of vegetation. Western mosquitofish exhibited more agonistic behaviors than the four topminnow species and caused a change in topminnow behavior in mixed-species microcosms. Mosquitofish were aggressive toward conspecifics, with most of the chases and nips occurring at the highest densities and when vegetation was absent. Topminnows exhibited few agonistic behaviors toward conspecifics, but intraspecific chasing and nipping did occur when exposed to mosquitofish. Agonistic behaviors by topminnows toward mosquitofish occurred infrequently, and mosquitofish initiated almost all of the chases and nips. While all four topminnow species were attacked by mosquitofish, northern starhead topminnow and banded killifish were chased and nipped more frequently than the other topminnow species. These two topminnows exhibited the most behavioral changes and fin damage and one northern starhead topminnow died following mosquitofish attacks. Based on these results, it appears that the stocking of western mosquitofish into primary and connecting waterways could have negative impacts on native topminnow species that occur in these systems.

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Factors resulting in decline of the endangered Sonoran topminnow Poeciliopsis occidentalis (Atheriniformes: Poeciliidae) in the United States

Cited by 78 publications

References 26 publications

Alimentación de los peces dulceacuícolas tropicales Heterandria bimaculata y Poecilia sphenops (Cyprinidontiformes: Poeciliidae)

Alimentación de los peces dulceacuícolas tropicales Heterandria bimaculata y Poecilia sphenops (Cyprinidontiformes: Poeciliidae)

Sensitivities of mosquitofish and black mudfish to a piscicide: Could rotenone be used to control mosquitofish in New Zealand wetlands?

Agonistic behavioral interactions between introduced western mosquitofish and native topminnows

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