The reproductive seasonality and fecundity of yellowtail clownfish (<i>Amphiprion clarkii</i>) in the Philippines

Holtswarth, Jordan N; Jose, Shem B San; Montes, Humberto R.; Morley, James William; Pinsky, Malin L.

doi:10.5343/bms.2017.1010

Cited by 8 publications

(8 citation statements)

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“…Dispersal occurs during the pelagic larval stage for 8–10 days before settlement to an anemone (Thresher et al., 1989). Amphiprion clarkii spawn on a lunar cycle year round and produce the most eggs from November to May (Holtswarth et al., 2017). Our annual sampling therefore captured connectivity averaged across several spawning events within a year.…”

Section: Methodsmentioning

confidence: 99%

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Quantifying dispersal variability among nearshore marine populations

et al. 2020

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Dispersal drives diverse processes from population persistence to community dynamics. However, the amount of temporal variation in dispersal and its consequences for metapopulation dynamics is largely unknown for organisms with environmentally driven dispersal (e.g., many marine larvae, arthropods and plant seeds). Here, we used genetic parentage analysis to detect larval dispersal events in a common coral reef fish, Amphiprion clarkii, along 30 km of coastline consisting of 19 reef patches in Ormoc Bay, Leyte, Philippines. We quantified variation in the dispersal kernel across seven years (2012–2018) and monsoon seasons with 71 parentage assignments from 791 recruits and 1,729 adults. Connectivity patterns differed significantly among years and seasons in the scale and shape but not in the direction of dispersal. This interannual variation in dispersal kernels introduced positive temporal covariance among dispersal routes that theory predicts is likely to reduce stochastic metapopulation growth rates below the growth rates expected from only a single or a time‐averaged connectivity estimate. The extent of variation in mean dispersal distance observed here among years is comparable in magnitude to the differences across reef fish species. Considering dispersal variation will be an important avenue for further metapopulation and metacommunity research across diverse taxa.

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Section: Methodsmentioning

confidence: 99%

“…Sex can be determined by caudal tail colour and shape (Ochi, 1989). Benthic eggs develop for 6 days before hatching into the water column (Holtswarth et al, 2017). Dispersal occurs during the pelagic larval stage for 8-10 days before settlement to an anemone (Thresher et al, 1989).…”

Section: Study Systemmentioning

confidence: 99%

Quantifying dispersal variability among nearshore marine populations

et al. 2020

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“…The fish move up in rank after a larger fish has died. They lay clutches of benthic eggs and primarily spawn from November to May in this location (Holtswarth et al 2017). Larvae hatch after six days and spend 7-10 days in the water column before returning to the reef to settle on an anemone (Fautin & Allen 1992).…”

Section: Study Speciesmentioning

confidence: 99%

Persistence of a reef fish metapopulation via network connectivity: theory and data

et al. 2021

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Determining metapopulation persistence requires understanding both demographic rates and patch connectivity. Persistence is well understood in theory but has proved challenging to test empirically for marine and other species with high connectivity that precludes classic colonisation-extinction dynamics. Here, we assessed persistence for a yellowtail anemonefish (Amphiprion clarkii) metapopulation using 7 years of annual sampling data along 30 km of coastline. We carefully accounted for uncertainty in demographic rates. Despite stable population abundances through time and sufficient production of surviving offspring for replacement, the pattern of connectivity made the metapopulation unlikely to persist in isolation and reliant on immigrants from outside habitat. To persist in isolation, the metapopulation would need higher fecundity or to retain essentially all recruits produced. This assessment of persistence in a marine metapopulation shows that stable abundance alone does not indicate persistence, emphasising the necessity of assessing both demographic and connectivity processes to understand metapopulation dynamics.

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“…They are protandrous hermaphrodites, and the largest two adults in an anemone breed (Haruki Ochi, 1989). Benthic eggs develop for six days before hatching into the water column (Holtswarth, Jose, Montes, Morley, & Pinsky, 2017). Dispersal occurs during the pelagic larval stage for 8-10 days before settlement to an anemone (Thresher, Colin, & Bell, 1989).…”

Section: Study Systemmentioning

confidence: 99%

“…Dispersal occurs during the pelagic larval stage for 8-10 days before settlement to an anemone (Thresher, Colin, & Bell, 1989). A. clarkii spawn on a lunar cycle all year long, but produce the most eggs from November to May (Holtswarth et al, 2017). Generation time is likely to be around five years based on growth and maturity in this species (Moyer, 1986;H.…”

Section: Study Systemmentioning

confidence: 99%

Quantifying dispersal variability among nearshore marine populations

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Dedrick

Stuart

et al. 2020

Preprint

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Dispersal drives diverse processes from population persistence to community dynamics. However, the amount of temporal variation in dispersal and its consequences for metapopulation dynamics is largely unknown for organisms with environmentally driven dispersal (e.g., many marine larvae, arthropods, and plant seeds). Here, we quantify variation in the dispersal kernel across seven years and monsoon seasons for a common coral reef fish, Amphiprion clarkii, using genetic parentage assignments. Connectivity patterns varied strongly among years and seasons in the scale and shape but not in the direction of dispersal. This interannual variation in dispersal kernels introduced temporal covariance among dispersal routes with overall positive correlations in connections across the metapopulation that may reduce stochastic metapopulation growth rates. The extent of variation in mean dispersal distance observed here among years is comparable in magnitude to the differences across reef fish species. Considering dispersal variability will be an important avenue for further metapopulation and metacommunity research across diverse taxa.

show abstract

The reproductive seasonality and fecundity of yellowtail clownfish (Amphiprion clarkii) in the Philippines

Cited by 8 publications

References 0 publications

Quantifying dispersal variability among nearshore marine populations

Quantifying dispersal variability among nearshore marine populations

Persistence of a reef fish metapopulation via network connectivity: theory and data

Quantifying dispersal variability among nearshore marine populations

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