Prey fish selection by Far Eastern catfish Silurus asotus and largemouth bass Micropterus salmoides

Katano, Osamu; Nakamura, Tomoyuki; Yamamoto, Shoichiro

doi:10.1111/j.1444-2906.2005.01038.x

Cited by 13 publications

(4 citation statements)

References 8 publications

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“…This is contrary to all other case studies on invasive M. salmoides populations around the world which have shown significant top-down effects on their prey fish populations, especially when the prey fishes comprise cyprinid species (e.g. Cambray and Stuart 1985;Azuma and Motomura 1998;Yonekura et al 2004;Katano et al 2005;Jang et al 2006;Sammons and Maceina 2006;Takamura 2007). For example, in other African countries, B. paludinosus populations have been heavily impacted by M. salmoides predation, with Gratwicke and Marshall (2001) revealing that the population densities of small Barbus species, including B. paludinosus, were reduced by up to 99% in their presence across 42 lakes in Harare, Zimbabwe.…”

Section: Discussionmentioning

confidence: 58%

The introduced Micropterus salmoides in an equatorial lake: a paradoxical loser in an invasion meltdown scenario?

et al. 2010

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Micropterus salmoides is a North American piscivorous fish on the IUCN list of 100 of the world's worst invasive alien species. Introduced into Lake Naivasha (Kenya) in 1929, their current population abundance is significantly depressed in a lake that has recently become dominated by fishes of the Cyprinidae family; the introduced cyprinid Cyprinus carpio now dominates catches in the commercial fishery and Barbus paludinous is now numerically dominant in the fish community. Long-term diet studies of M. salmoides based on gut contents analysis (GCA) have defined their diet spectrum, feeding preferences and ontogenetic dietary shifts. Between 1987 and 1991, diet was size-structured; fish \260 mm were mainly insectivorous and fish [260 mm fed mainly on invasive crayfish Procambarus clarkia with B. paludinosus rarely taken. More recent GCA data revealed that up to 2003, these sizestructured trophic relationships were still evident, but there has been a subsequent shift to their feeding almost exclusively on small (\100 mm) B. paludinosus, coincident with a size-related functional switch whereby M. salmoides [120 mm were now piscivorous. However, a Bayesian stable isotope mixing model (SIAR) suggested M. salmoides diet actually remained relatively varied in 2006 and 2007; it indicated P. clarkii were still contributing more to their diet than B. paludinosus in fish \260 mm and provided only partial support for the functional shift. The consequence of the M. salmoides depressed population abundance is their predation pressure on prey fishes is limited and preventing top-down effects. This is in contrast to their invasive populations elsewhere in the world and the likely result of invasion meltdown processes in Naivasha involving the introduced C. carpio and P. clarkii that have produced sub-optimal foraging conditions for M. salmoides.

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Section: Discussionmentioning

confidence: 58%

The introduced Micropterus salmoides in an equatorial lake: a paradoxical loser in an invasion meltdown scenario?

et al. 2010

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“…The decreased feeding resulted in lower gains in L t and weight. Decreased feeding and growth rate may compound the problem of stocking catfish grown in aquaculture ponds into water bodies with predators (Katano et al. 2005).…”

Section: Discussionmentioning

confidence: 99%

Largemouth bass predators reduce growth, feeding and movement in juvenile channel catfish

Fine

Mayo

Newton

et al. 2010

Ecology of Freshwater Fish

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Fine ML, Mayo MS, Newton SH, Sismour EN. Largemouth bass predators reduce growth, feeding and movement in juvenile channel catfish. Ecology of Freshwater Fish 2011: 20: 114–119. © 2010 John Wiley & Sons A/S Abstract – Animals utilise sensory cues to make decisions that will decrease their vulnerability to predation. With a well‐developed olfactory system and taste buds located inside the mouth and on the external body surface, catfishes are excellent subjects to investigate nonconsumptive predator effects. Juvenile channel catfish Ictalurus punctatus are often eaten by largemouth bass Micropterus salmoides, and we tested the hypothesis that largemouth bass fed catfish would adversely affect foraging and growth in channel catfish. Groups of catfish were placed in tanks partitioned by a mesh screen: experimental tanks had a largemouth bass on the other half of the tank, and control tanks had an empty chamber. Experimental catfish exhibited a long‐term decrease in spontaneous motion, feeding and growth. Feeding catfish to the bass caused the experimental catfish to freeze after a multi‐second latency suggesting transport of an alarm cue. Thus, there were long‐term effects from the continuous presence of the bass and additional short‐term cues from the bass consuming a catfish.

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“…Sometimes, the negative correlation between abundance of M. salmoides and other fish has been attributed to similar food preference, as in the case of native carnivorous Korean fish [127,145,154]. This may even be the cause of species extinction, as in the case of the waterbird Podilymbus gigas, the Atitlán grebe [123].…”

Section: Negative Associations With Native Fish Species: Predation An...mentioning

confidence: 99%

Biological Invasions in Fresh Waters: Micropterus salmoides, an American Fish Conquering the World

Costantini,

Kabala,

Sporta Caputi

et al. 2023

Water

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Biological invasions in fresh waters cause biodiversity loss and impairment of ecosystem functioning. Many freshwater invasive species are fish, including the largemouth bass Micropterus salmoides, which is considered one of the 100 worst invasive species in the world. Fast individual growth rates, high dispersal ability, ecological tolerance, and trophic plasticity are among the characteristics contributing to its success. The negative impact of M. salmoides on littoral fish communities is believed to be mitigated by habitat structural complexity resulting from aquatic vegetation and coarse woody debris, while the main limits on its spread seem to be strong water flows and high turbidity, which impairs visual predation. Together with the human overexploitation of its potential fish antagonists, habitat alteration could result in M. salmoides having seriously detrimental effects on native biodiversity. The purpose of this study is to critically review the life history and ecology of M. salmoides, its impact on ecosystems outside North America, and the effects of anthropogenic activities on its spread. This will highlight environmental factors that favor or limit its invasive success, helping to identify management measures that might mitigate its negative effects on freshwater biodiversity.

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Prey fish selection by Far Eastern catfish Silurus asotus and largemouth bass Micropterus salmoides

Cited by 13 publications

References 8 publications

The introduced Micropterus salmoides in an equatorial lake: a paradoxical loser in an invasion meltdown scenario?

The introduced Micropterus salmoides in an equatorial lake: a paradoxical loser in an invasion meltdown scenario?

Largemouth bass predators reduce growth, feeding and movement in juvenile channel catfish

Biological Invasions in Fresh Waters: Micropterus salmoides, an American Fish Conquering the World

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