Spawning seasonality and body sizes at sexual maturity in the bluespine unicornfish, Naso unicornis (Acanthuridae)
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Cites background or methods or result from "Spawning seasonality and body sizes..."
...It is not unusual for surgeonfishes to differ sexually in body size (Robertson 1985) or size at maturity (DeMartini et al. 2014), but bluespine unicornfish, unlike most other long-lived bony fishes (Froese and Binohlan 2000), mature at a relatively young age....
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...for bluespine unicornfish in Hawaii (DeMartini et al. 2014) and at...
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...Growth differed between females and males in typical fashion, with males exhibiting slower growth following an earlier maturity at smaller body size (DeMartini et al. 2014) and consequently a smaller average maximum size....
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...The sex of all LRG fish was identified in a prior study of sex-specific length at maturity (DeMartini et al. 2014); identical histology methods were unsuccessful at identifying the sex of late YOY....
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...inset of zoomed growth curves illustrates estimated ages at median sexual maturity (AM50) for females and males with reference to the respective body lengths at median maturity (35.5 cm FL for females, 30.1 cm FL for males; DeMartini et al. 2014)....
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24 citations
Additional excerpts
...…market biosampling 28.640 0.064 230 Taylor, Rhodes, et al. (2014) Oahu, Hawaii 533 67–596 0–52 Fishery-dependent, market biosampling 23.726 0.081 2,923 Andrews et al. (2016), DeMartini, Langston, and Eble (2014) Tutuila, American Samoa 328 124–535 1–19 Fishery-dependent, market biosampling…...
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17 citations
References
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"Spawning seasonality and body sizes..." refers methods in this paper
...The 2-parameter logistic equation used was Px ¼ 100 = ð1 þ exp ½ a (Lx b)]); where a and b are fitted constants; and Px = percent mature at Lx. Akaike’s Information Criterion (AIC; Quinn and Keough 2002) was used to evaluate whether L50’s differed between the sexes....
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...A 1-way ANCOVA [proc GLM in PC SAS v 9.1.3 (SAS 2006)], followed by Ryan–Einot–Gabriel–Welsch (REGW) a posteriori multiple-comparison test (Quinn and Keough 2002), was used to evaluate mean GSIs among months of collection (years pooled) for each sex of fish, with body length (FL) as covariate....
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...3 (SAS 2006)], followed by Ryan–Einot–Gabriel–Welsch (REGW) a posteriori multiple-comparison test (Quinn and Keough 2002), was used to evaluate mean GSIs among months of collection (years pooled) for each sex of fish, with body length (FL) as covariate....
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...Akaike’s Information Criterion (AIC; Quinn and Keough 2002) was used to evaluate whether L50’s differed between the sexes....
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1,270 citations
"Spawning seasonality and body sizes..." refers background in this paper
...5c; also Wallace and Selman 1981)....
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...In many resting-mature female unicornfish, many or most of the oocytes destined for future spawning appear to be maintained as primary growth (PG, Phase 1) oocytes rather than as cortical alveolar (CA, Phase 2) oocytes (see Wallace and Selman 1981)....
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846 citations
"Spawning seasonality and body sizes..." refers methods in this paper
...2a, 2c of Brown-Peterson et al. 2011)....
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...Sexual identity and reproductive maturity (either immature or adult) were assigned to individual fish based on the histological criteria listed for males and females in Table 1, using scores based on the terminology of Brown-Peterson et al. (2011)....
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671 citations
"Spawning seasonality and body sizes..." refers background in this paper
...…size limit for a species like this in which size is decoupled from age after a brief period of fast early growth (Choat and Axe 1996) should further consider the likely disproportionate contribution of old females to population replenishment (Berkeley et al. 2004; Birkeland and Dayton 2005)....
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...Of course, setting a minimum size limit for a species like this in which size is decoupled from age after a brief period of fast early growth (Choat and Axe 1996) should further consider the likely disproportionate contribution of old females to population replenishment (Berkeley et al. 2004; Birkeland and Dayton 2005)....
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