Observations on the Reproductive Ecology of Pirate Perch<i>Aphredoderus sayanus</i>

Fontenot, Quenton; Rutherford, D. Allen

doi:10.1080/02705060.1999.9663712

Cited by 6 publications

(6 citation statements)

References 12 publications

(8 reference statements)

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“…Twenty-three of the 57 eggs were within the nest depression, and all were within 13 cm; eggs were then left unguarded. Others also have suggested that, despite the nest building activity, female A. savanus releases eggs over the substrate in a random manner and leaves them to develop unguarded (Brill 1977, Katula 1992, Fontenot and Rutherford 1999; however, these accounts reported that the female does not extrude all of her eggs in a single occasion. Prior to Poly and Wetzel(2003).…”

Section: Reproductive Observationsmentioning

confidence: 93%

“…Shortly after the spawning of the female in the 38 L aquarium, the female in the 50 L aquarium had a noticeable decrease in her girth and appeared to have reabsorbed her eggs. Previous successful A. savanus captive spawning involved a simulated over-wintering period (Brill 1977, Katula 1992, Fontenot and Rutherford 1999. Understanding such environmental cues might increase captive breeding success (Bulger et al 2002).…”

Section: Reproductive Observationsmentioning

confidence: 99%

“…Abbot (1861) and Katula (1992) reported that A. savanus builds nests that are guarded by both parents. Fontenot and Rutherford (1999) suggested that A. sayanus releases adhesive eggs over leaf litter and woody debris that are left unguarded. Hemdal (2003) stated that A. sayanus scatters non-adhesive eggs that are left to develop unguarded.…”

Section: Introductionmentioning

confidence: 98%

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Observations of the Pirate Perch,Aphredoderus sayanus(Gilliams), with Comments on Sexual Dimorphism, Reproduction, and Unique Defecation Behavior

Tiemann¹

2004

Journal of Freshwater Ecology

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Analysis of variance results showed significant differences in measurements on 71 specimens of Aphredoderus sayanus comparing standard length (F = 2 1.9 1, P < 0.000 l), maximum depth (F = 8.44, P = 0.006), and standard length to body depth ratio (F = 9.1 1, P = 0.004), indicating that this fish is sexually dimorphic with females being larger and more full-bodied than males. In laboratory observations, a pair of A. sayanus created a nest and successfully spawned, which strengthens the argument that this fish might not be a branchial brooder but instead might be a nest builder with the female releasing adhesive eggs in the proximity of the nest. On three separate daytime occasions, A. sayanus ventured outside its refuge approximately to the point that only its head and anus were exposed, defecated, and then backed into its refuge. The jugular position of the anus might allow adult A. sayanus to partially leave its refuges to defecate to avoid altering water quality and without fully exposing itself to predators. This unique defecation behavior might explain the evolutionary reason for the position of the anus in adult 8.

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Section: Reproductive Observationsmentioning

confidence: 93%

Section: Reproductive Observationsmentioning

confidence: 99%

See 1 more Smart Citation

Observations of the Pirate Perch,Aphredoderus sayanus(Gilliams), with Comments on Sexual Dimorphism, Reproduction, and Unique Defecation Behavior

Tiemann¹

2004

Journal of Freshwater Ecology

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“…Other naturalists have speculated that Pirate Perch are substrate spawners (although the relevance, if any, of the anterior urogenital pore to this reproductive mode remains unclear). In aquarium observations, Brill (1977) and Fontenot and Rutherford (1999) noticed that Pirate Perch broadcast apparently aborted eggs on tank bottoms, and Katula (1987Katula ( , 1992 described the deposition of viable eggs in or near a shallow depression swept by a female in the streambed. From field observations, Abbott (1861Abbott ( , 1868 also posited that Pirate Perch construct saucer-shaped nests but later reinterpreted this as possible spawning in abandoned sunfish nests (Abbott, 1870).…”

mentioning

confidence: 96%

“…From field observations, Abbott (1861Abbott ( , 1868 also posited that Pirate Perch construct saucer-shaped nests but later reinterpreted this as possible spawning in abandoned sunfish nests (Abbott, 1870). Based on their aquarium observations Fontenot and Rutherford (1999) suggested that Pirate Perch may broadcast eggs over leaf litter and woody debris.…”

mentioning

confidence: 99%