Spawning Behavior and Genetic Parentage in the Pirate Perch (Aphredoderus sayanus), a Fish with an Enigmatic Reproductive Morphology

Fletcher, Dean E.; Dakin, Elizabeth E.; Porter, Brady A.; Avise, John C.

doi:10.1643/ce-03-160r

Cited by 11 publications

(4 citation statements)

References 20 publications

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“…We also found a general reduction of red shiner and an absence of Topeka shiner Notropis topeka in fragmented streams, two species known to be extirpated from fragmented streams because of reduced dispersal (Adams et al 2000, Matthews and Marsh-Matthews 2007, Franssen 2011. Spatial extent over which stream fish complete their life history varies (Schlosser 1991), and can range from dispersal on scales ranging from 10-100 m (Fletcher et al 2004) to hundreds of kilometers (Perkin and Gido 2011). Although existence of obligate potamodromy among many Great Plains small-bodied fishes is poorly studied, thwarted dispersal and attenuated mass effects caused by instream obstructions generally explain reduced alpha diversity and increased beta diversity among fragmented communities in prairie streams (Winston et al 1991, Perkin andGido 2011).…”

Section: Metacommunity Response To Fragmentation In Dendritic Ecologimentioning

confidence: 54%

Fragmentation alters stream fish community structure in dendritic ecological networks

Perkin¹,

Gido²

2012

Ecological Applications

194

128

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Effects of fragmentation on the ecology of organisms occupying dendritic ecological networks (DENs) have recently been described through both conceptual and mathematical models, but few hypotheses have been tested in complex, real-world ecosystems. Stream fishes provide a model system for assessing effects of fragmentation on the structure of communities occurring within DENs, including how fragmentation alters metacommunity dynamics and biodiversity. A recently developed habitat-availability measure, the "dendritic connectivity index" (DCI), allows for assigning quantitative measures of connectivity in DENs regardless of network extent or complexity, and might be used to predict fish community response to fragmentation. We characterized stream fish community structure in 12 DENs in the Great Plains, USA, during periods of dynamic (summer) and muted (fall) discharge regimes to test the DCI as a predictive model of fish community response to fragmentation imposed by road crossings. Results indicated that fish communities in stream segments isolated by road crossings had reduced species richness (alpha diversity) relative to communities that maintained connectivity with the surrounding DEN during summer and fall. Furthermore, isolated communities had greater dissimilarity (beta diversity) to downstream sites notisolated by road crossings during summer and fall. Finally, dissimilarity among communities within DENs decreased as a function of increased habitat connectivity (measured using the DCI) for summer and fall, suggesting that communities within highly connected DENs tend to be more homogeneous. Our results indicate that the DCI is sensitive to community effects of fragmentation in riverscapes and might be used by managers to predict ecological responses to changes in habitat connectivity. Moreover, our findings illustrate that relating structural connectivity of riverscapes to functional connectivity among communities might aid in maintaining metacommunity dynamics and biodiversity in complex dendritic ecosystems.

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Section: Metacommunity Response To Fragmentation In Dendritic Ecologimentioning

confidence: 54%

Fragmentation alters stream fish community structure in dendritic ecological networks

Perkin¹,

Gido²

2012

Ecological Applications

194

128

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“…Disruption of the monophyly of Aphredoderus + Amblyopsidae, as in Murray & Wilson (1999), is highly intriguing. All adult members of these groups share the apomorphic condition of the urogenital pore located in the throat region, due to a migration anteriorly during ontogeny (Ross & Rohde 2003; Fletcher et al. 2004).…”

Section: Discussionmentioning

confidence: 99%

“…Spawning behaviour of A . sayanus was thoroughly investigated and while shown to be quite novel (Poly & Wetzel 2003; Fletcher et al. 2004) the branchial brooding hypothesis was rejected.…”

Section: Discussionmentioning

confidence: 99%

Regressive progression, progressive regression or neither? Phylogeny and evolution of the Percopsiformes (Teleostei, Paracanthopterygii)

Dillman

Bergstrom

Noltie³

et al. 2010

Zoologica Scripta

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Dillman, C.B., Bergstrom, D.E., Noltie, D.B., Holtsford, T.P. & Mayden, R.L. (2010). Regressive progression, progressive regression or neither? Phylogeny and evolution of the Percopsiformes (Teleostei, Paracanthopterygii). —Zoologica Scripta, 40, 45–60. Cave animals have fascinated scientists for centuries, and clades consisting primarily of cave‐adapted species are even more intriguing. The percopsiforms are an enigmatic group of fishes comprised of nine species in seven genera, with four species in three genera exhibiting characteristic troglomorphic features, such as a lack of pigmentation and eyes. Nucleotide characters presented here provide the first test of monophyly for both the Percopsiformes and Amblyopsidae with this character type and taxonomic completeness. Characters of ND2 support a monophyletic Percopsiformes and Amblyopsidae and further document phylogeographic subdivision in two stygobitic genera, Amblyopsis and Typhlichthys, in Amblyopsidae. Age estimates from time‐calibrated branch lengths utilizing two independent intra‐lineage fossils indicate that the ancestor to amblyopsids is Eocene in age, and that phylogeographic subdivision in both Amblyopsis and Typhlichthys occurred primarily in the Miocene. Interestingly, ancestral character state reconstruction for the amblyopsids strongly supports the re‐evolution of eyes and body pigment. While certainly unconventional, but supported with this character set, the hypothesis provides continued challenge to Dollo’s Law.

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“…Certain brood parasites such as cuckoo catfishes of the genus Synodontis (family Mochokidae) are evolutionary mouthbrooders and their eggs and offspring can be affected by social deprivation even if incubated by females of different fish taxa 45 . Indeed, gill chamber brooder cavefishes (family Amblyopsidae) can also be considered from this perspective 46 . Further research focused on this issue is recommended to ascertain the importance of mouthbrooding care in mentioned taxa.…”

Section: Discussionmentioning

confidence: 99%

Social deprivation in maternal mouthbrooders Tropheus sp. “Caramba” (Teleostei: Cichlidae) decreases the success rate of reproduction and survival rate of fish fry

Novák

Frynta

Nováková

et al. 2023

Sci Rep

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Early offspring separation from mothers causes social deprivation. Mouthbrooding, when eggs and fry are incubated in the buccal cavity of the parent, is one of the reproductive strategies in fish. The mother is the incubating parent in African lake cichlids from the genus Tropheus. Many of these are produced in captivity and some producers use artificial incubators in which eggs are incubated separately from the mother. We hypothesized that this practice may dramatically modify the reproduction rate of fish individuals produced by the method of artificial incubation. The long-term experiment focused on Tropheus sp. “Caramba” had been carried out for 10 years when maternally incubated and separated individuals were compared. We found a negative effect of artificial egg and offspring incubation out of the mother’s buccal cavity. The deprived females laid the same number of eggs as maternally incubated females, but most eggs were lost during the incubation. Moreover, the reproduction frequency was significantly lower in deprived females in comparison with those maternally incubated. This study should be perceived as preliminary. For this reason and with respect to welfare principles, we strongly recommend similarly designed experiments focused on other potentially sensitive fish mouthbrooders. Once the syndrome would be confirmed, we recommend avoiding artificial incubation of mouthbrooding fish in general.

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Spawning Behavior and Genetic Parentage in the Pirate Perch (Aphredoderus sayanus), a Fish with an Enigmatic Reproductive Morphology

Cited by 11 publications

References 20 publications

Fragmentation alters stream fish community structure in dendritic ecological networks

Fragmentation alters stream fish community structure in dendritic ecological networks

Regressive progression, progressive regression or neither? Phylogeny and evolution of the Percopsiformes (Teleostei, Paracanthopterygii)

Social deprivation in maternal mouthbrooders Tropheus sp. “Caramba” (Teleostei: Cichlidae) decreases the success rate of reproduction and survival rate of fish fry

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