Predation of Japanese dace, Tribolodon hakonensis, by largemouth bass, Micropterus salmoides, in experimental aquaria

Katano, Osamu; Yamamoto, Shoichiro; Nakamura, Tomoyuki

doi:10.1007/s102280200060

Cited by 10 publications

(6 citation statements)

References 8 publications

(12 reference statements)

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“…One bass frequently attacked intact fish to the point of death without ingesting them. Such behavior has been previously reported in largemouth bass used in experiments with channel catfish (Krummrich & Heidiger 1973) and Japanese dace ( Tribolodon hakonensis ) (Katano et al. 2002).…”

Section: Discussionsupporting

confidence: 70%

The Spines of the Channel Catfish, Ictalurus punctatus, as an Anti‐Predator Adaptation: an Experimental Study

2006

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Although experimental evidence is lacking, the stout pectoral spine of catfishes has been interpreted as a defensive adaptation. The spine can be rigidly locked and abducted to produce stridulation sounds, which have been hypothesized to serve a warning function. We studied spine function in channel catfish (Ictalurus punctatus) as a deterrent to predation by largemouth bass (Micropterus salmoides) by presenting individuals with pairs of catfish, one with its pectoral spines clipped and the other intact. The number of initial attacks on clipped and intact fish was similar, suggesting that bass do not recognize the spine visually. Bass showed evidence of learning across trials, striking clipped fish fewer times and consuming them. Conversely, intact fish were attacked more than clipped ones because intact fish were repeatedly disgorged and attacked again, suggesting that bass become sensitized to the spine. Ingestion times were longer for intact than clipped fish, and fewer intact fish were eaten. Eighty‐eight percent of intact fish survived in the mouth of a bass one or more times. Catfish did not stridulate or use their spines to deter initial attacks, refuting the warning hypothesis. Locking and stridulation motions, only observed when catfish were held inside the mouth of a bass, did not deter subsequent attacks indicating that neither the spine nor stridulation carry a warning function. It is possible, therefore, that stridulation sounds function as a distress call. The spine functions against a gape‐limited predator by increasing the difficulty of ingestion but not capture.

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Section: Discussionsupporting

confidence: 70%

The Spines of the Channel Catfish, Ictalurus punctatus, as an Anti‐Predator Adaptation: an Experimental Study

2006

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“…We considered that bluegill can be consumed by catfish and largemouth bass if the body height and width of bluegill are shorter than the vertical and horizontal mouth lengths of the predators. Largemouth bass have been reported not to be able to consume very long prey fish, the limit being 46–69% of the bass length 16 . However, bluegill has a flat body with a large body height and, therefore, body height may limit predation by largemouth bass.…”

Section: Methodsmentioning

confidence: 99%

“…Largemouth bass have been reported not to be able to consume very long prey fish, the limit being 46-69% of the bass length. 16 However, bluegill has a flat body with a large body height and, therefore, body height may limit predation by largemouth bass.…”

Section: Supplementary Measurements and Data Analysesmentioning

confidence: 99%

Comparison of consumption of bluegill by Far Eastern catfish and largemouth bass

Katano¹,

Nakamura²,

Yamamoto³

2003

Fisheries Sci

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The consumption of bluegill by Far Eastern catfish and largemouth bass was examined in aquaria. Twenty or more live bluegill were introduced into each aquarium with one catfish or largemouth bass. Bluegill were captured in Lake Sugawa, Nagano Prefecture, and almost all of them could be preyed upon by the catfish and bass. The consumption of bluegill was correlated with the body weight of catfish and bass except for the very large predator individuals. Far Eastern catfish consumed comparatively more bluegill (9.4% of the catfish body weight per day) than largemouth bass (4.5%). Stocking Far Eastern catfish is potentially an effective method for reducing bluegill, although prey‐selection experiments using bluegill, native Japanese prey fish and the catfish are required before actively advocating the biological control of bluegill using Far Eastern catfish.

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“…All these fishes were stocked in indoor (bluegill) and outdoor (dace and crucian carp) ponds and were given pellets and dried krill. The body length of prey fish used in the experiments (Table 1) was within the range that can be preyed on by catfish or bass based on the data by Tabata and Shibata 10 and Katano et al 12,17 …”

Section: Methodsmentioning

confidence: 99%

“…The body length of prey fish used in the experiments ( Table 1) was within the range that can be preyed on by catfish or bass based on the data by Tabata and Shibata 10 and Katano et al . 12,17…”

Section: Fishmentioning

confidence: 99%

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

2005

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Prey fish selection by Far Eastern catfish and largemouth bass were examined using bluegill, Japanese dace and crucian carp as food fish. In both aquaria (1.2 m ¥ 0.45 m) and ponds (2.8 m ¥ 1.2 m), bluegill was not preyed on by catfish and bass more than dace and crucian carp. In aquaria, there was no significant difference in the consumption of dace and crucian carp between catfish and bass, but in ponds, catfish preyed on dace and crucian carp more and less than bass, respectively. In the case that only bluegill and catfish were introduced in ponds, catfish consumed 4-15 g of bluegill per day. The introduction of catfish into ponds and lakes for the purpose of eradicating bluegill is considered appropriate for areas with few native fish species.

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Predation of Japanese dace, Tribolodon hakonensis, by largemouth bass, Micropterus salmoides, in experimental aquaria

Cited by 10 publications

References 8 publications

The Spines of the Channel Catfish, Ictalurus punctatus, as an Anti‐Predator Adaptation: an Experimental Study

The Spines of the Channel Catfish, Ictalurus punctatus, as an Anti‐Predator Adaptation: an Experimental Study

Comparison of consumption of bluegill by Far Eastern catfish and largemouth bass

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

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