Inter-oceanic analysis of demographic variation in a widely distributed Indo-Pacific coral reef fish

Trip, Elizabeth L.; Choat, J. Howard; Wilson, David T.; Robertson, D. Ross

doi:10.3354/meps07755

Cited by 85 publications

(96 citation statements)

References 49 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…We also used the reparameterized version of the VBGF (rVBGF) (Francis 1988a, Moulton et al 1992, Welsford & Lyle 2005, Trip et al 2008:…”

Section: Methodsmentioning

confidence: 99%

“…The macroandric sister species of yellow tang, Zebrasoma scopas, had a similar T max 25% of 29 to 34 yr among different locations on the Great Barrier Reef, but sexual differences in longevity were not investigated (Choat & Robertson 2002, Trip et al 2008). While survival rates of juveniles in the deeper coral-rich habitat appear to be independent of size ), the presence of size-and sex-dependent survival rates of yellow tang adults, either of which could lead to the slightly higher male longevity, has not been empirically tested.…”

Section: Sexual Differences In Age Size and Growthmentioning

confidence: 99%

“…Mean length (L T , in mm) at age (T, in years) was modeled using the standard von Bertalanffy growth function (VBGF): (2) where l ∞ is the mean asymptotic maximum length, k describes the rate at which L T reaches l ∞ (with units of yr -1 ) and t 0 is the theoretical age at which the fish would have a length of 0 assuming that the larval fish followed the post-settlement growth pattern. This assumption is crude at best, and t 0 is essentially an arbitrary constant (Beverton & Holt 1957).We also used the reparameterized version of the VBGF (rVBGF) (Francis 1988a, Moulton et al 1992, Welsford & Lyle 2005, Trip et al 2008:The rVBGF is defined by 3 mean lengths, l y , l v and l w at ages y, v and w = (y + v)/2, respectively. Ages 2, 12 and 7, respectively, were chosen because they are well represented in our data and are dispersed throughout the period of growth (Francis 1988a).…”

mentioning

confidence: 99%

See 2 more Smart Citations

Habitat- and sex-specific life history patterns of yellow tang Zebrasoma flavescens in Hawaii, USA

Claisse

Kienzle²,

Bushnell³

et al. 2009

Mar. Ecol. Prog. Ser.

View full text Add to dashboard Cite

Yellow tang Zebrasoma flavescens is the primary coral reef fish species taken in Hawaii for the aquarium trade. As part of an extensive adaptive management effort that included a network of marine protected areas that prohibited commercial aquarium fishing, an emphasis was placed on obtaining habitat-and sex-specific life history information for this valuable species. Using otolith and capture-mark-recapture methods we examined sexual differences in ontogenetic patterns of habitat use, growth rate, size dimorphism and longevity. Age validation using tetracycline to mark otoliths provided evidence that a single annulus formed each year. Yellow tang are a long-lived species (the oldest individual collected was 41 yr old) and display an asymptotic growth pattern typical of the family Acanthuridae. Median size and age at the transition between deeper coral-rich and shallow turfdominated habitat use were about 20 mm longer and about 2 yr older for males than females and coincided with an increase in reproductive output. The sexual difference in size at habitat transition, combined with sexual size dimorphism (mean asymptotic maximum length -male: 179 mm; female 156 mm) results in differences in the size distributions of both sexes in the 2 habitats. Sexual size dimorphism resulted from a higher growth rate for males through the juvenile period.KEY WORDS: Ontogenetic habitat use · Hawaiian aquarium fishery · Acanthuridae · Model selection · Otolith · Capture-mark-recapture · Growth · Coral reef fish Resale or republication not permitted without written consent of the publisherMar Ecol Prog Ser 389: [245][246][247][248][249][250][251][252][253][254][255] 2009 information is combined with ontogenetic patterns of habitat use. Most studies on ontogenetic variation of habitat use have compared size distributions between habitats (Gillanders et al. 2003), and therefore have not considered age structure, sex-specific habitat use patterns or the duration of the lifespan spent in each habitat. When available, information about age-based habitat use can improve conservation planning and design of MPAs (Mumby 2006, Parnell et al. 2006) and lead to an understanding of how the amount of available juvenile and adult habitat may influence population size -a potential key to conservation and area-based fisheries management (Halpern et al. 2005).Many species of coral reef fish, including several species of surgeonfish, make ontogenetic shifts in habitat use-an important factor in the organization of fish communities (Robertson 1988, Lawson et al. 1999, Lecchini & Galzin 2005, Robertson et al. 2005, Pratchett et al. 2008. Yellow tang in West Hawaii settle primarily into middepth (10 to 25 m) reef habitat with a high percentage of coral cover (hereafter deeper coral-rich habitat). At some as yet undetermined point in their lifespan, larger individuals shift to spending daytime foraging in adjacent, shallow, complex habitats (reef flats and boulders) characterized by a high percentage of exposed rock covered by turf algae (h...

show abstract

“…We also used the reparameterized version of the VBGF (rVBGF) (Francis 1988a, Moulton et al 1992, Welsford & Lyle 2005, Trip et al 2008:…”

Section: Methodsmentioning

confidence: 99%

Section: Sexual Differences In Age Size and Growthmentioning

confidence: 99%

mentioning

confidence: 99%

See 1 more Smart Citation

Habitat- and sex-specific life history patterns of yellow tang Zebrasoma flavescens in Hawaii, USA

Claisse

Kienzle²,

Bushnell³

et al. 2009

Mar. Ecol. Prog. Ser.

View full text Add to dashboard Cite

show abstract

“…A substantial number of studies have demonstrated latitudinal and temperature effects on patterns of life-history variation [35][36][37]. On smaller spatial scales, sexual demography and the timing of sex change have been shown to vary in coral reef fishes across different reef configurations and reef sizes [4,6,18].…”

Section: Discussionmentioning

confidence: 99%

Drivers of protogynous sex change differ across spatial scales

Taylor

2014

Proc. R. Soc. B.

View full text Add to dashboard Cite

The influence of social demography on sex change schedules in protogynous reef fishes is well established, yet effects across spatial scales (in particular, the magnitude of natural variation relative to size-selective fishing effects) are poorly understood. Here, I examine variation in timing of sex change for exploited parrotfishes across a range of environmental, anthropogenic and geographical factors. Results were highly dependent on spatial scale. Fishing pressure was the most influential factor determining length at sex change at the withinisland scale where a wide range of anthropogenic pressure existed. Sex transition occurred at smaller sizes where fishing pressure was high. Among islands, however, differences were overwhelmingly predicted by reefal-scale structural features, a pattern evident for all species examined. For the most abundant species, Chlorurus spilurus, length at sex change increased at higher overall densities and greater female-to-male sex ratios at all islands except where targeted by fishermen; here the trend was reversed. This implies differing selective pressures on adult individuals can significantly alter sex change dynamics, highlighting the importance of social structure, demography and the selective forces structuring populations. Considerable life-history responses to exploitation were observed, but results suggest potential fishing effects on demography may be obscured by natural variation at biogeographic scales.

show abstract

“…Spatial variation in biological characteristics is a common feature of tropical shallow-water reef fish (Gust et al, 2002;Williams et al, 2003;Carter et al, 2014a,b), including species of lutjanids (Newman et al, 1996a;Kritzer, 2002;Cappo et al, 2013), and has been observed at multiple scales ranging from patch reefs on the same reef system (<1 km) (Pitcher, 1992;Gust et al, 2002) to thousands of kilometers across an ocean basin (Choat et al, 2003;Robertson et al, 2005) as well as between oceans (Trip et al, 2008). Many shallow-water species display a metapopulation structure (Kritzer and Sale, 2006), with spatial separation of adult sub-populations linked to varying degrees by a pelagic larval stage.…”

Section: Introductionmentioning

confidence: 99%

Oceanic, Latitudinal, and Sex-Specific Variation in Demography of a Tropical Deepwater Snapper across the Indo-Pacific Region

et al. 2017

View full text Add to dashboard Cite

Deepwater tropical fisheries provide an important source of income and protein to Pacific and Indian Ocean coastal communities who are highly dependent on fish for food security. The development of quantitative assessments and management strategies for these deepwater fisheries has been hindered by insufficient biological and fisheries data. We examine the age-specific demography of the pygmy ruby snapper Etelis carbunculus, an important target species in tropical deepwater fisheries, across 90 • of longitude and 20 • of latitude in the Pacific and Indian Oceans. Our results show that growth of E. carbunculus varies significantly between oceans and sexes and across latitudes in both oceans. Estimates of natural and fishing mortality were similar between oceans, but higher for females than males in both oceans. Evidence of greater fishing pressure on females than males is likely due to the larger size-at-age of females compared to males, assuming that selectivity of the fishing gear is related directly to fish size. Sex ratios were significantly female biased in both oceans despite this species being gonochoristic, and maturity schedules were similar between sexes in the Pacific Ocean. This species exhibits a protracted spawning season from mid-spring to autumn (i.e., October to May) in the Pacific Ocean. These results represent the first estimates of age-specific demographic parameters for E. carbunculus, and provide the foundation for the development of the first species-specific assessment models and harvest strategies for the species. Future stock assessment models for E. carbunculus should consider sex-specific demographic parameters and spatial variation in demography. Our results reveal substantial differences in biology between E. carbunculus and the giant ruby snapper E. sp., a cryptic congeneric species, and thus contribute to greater clarity in managing fisheries that are dependent on these two species. Furthermore, the improved information on the life history of E. carbunculus contributes to the broader sustainable management and improved food security for deepwater snapper fisheries in the Indo-Pacific region.

show abstract

Inter-oceanic analysis of demographic variation in a widely distributed Indo-Pacific coral reef fish

Cited by 85 publications

References 49 publications

Habitat- and sex-specific life history patterns of yellow tang Zebrasoma flavescens in Hawaii, USA

Habitat- and sex-specific life history patterns of yellow tang Zebrasoma flavescens in Hawaii, USA

Drivers of protogynous sex change differ across spatial scales

Oceanic, Latitudinal, and Sex-Specific Variation in Demography of a Tropical Deepwater Snapper across the Indo-Pacific Region

Contact Info

Product

Resources

About