Age, growth, mortality and reproductive seasonality of jolthead porgy, <i>Calamus bajonado</i>, from Florida waters

Burton, Michael L.; Potts, Jennifer C.; Page, Jordan; Poholek, Ariel

doi:10.7717/peerj.3774

Cited by 8 publications

(20 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Tomtate Manooch and Barans (1982) (2) Bohnsack and Harper (1988) (2) Manooch and Barans (1982) (1) White Murphy, Murie, and Muller (1999) (2) Murie and Parkyn (2005) (2) Murphy et al (1999) (2) Porgies Jolthead Burton, Potts, Page, and Poholek (2017) (2) (2) Liubimova and Capote (1971) (2015) (2) Tyler and Torres (2015) (2) Tyler and Torres (2015) (2) Pluma (0) Claro and Garcia (1994) (2)…”

Section: Species Length-age Weight-length Maturitymentioning

confidence: 99%

Life history demographic parameter synthesis for exploited Florida and Caribbean coral reef fishes

2019

View full text Add to dashboard Cite

Age‐ or length‐structured stock assessments require reliable life history demographic parameters (growth, mortality, reproduction) to model population dynamics, potential yields and stock sustainability. This study synthesized life history information for 84 commercially exploited tropical reef fish species from Florida and the U.S. Caribbean (Puerto Rico and the U.S. Virgin Islands). We attempted to identify a useable set of life history parameters for each species that included lifespan, length at age, weight at length and maturity at length. Key aspects of the life history synthesis were development of: (a) a database that characterized study details including sampling region, biological and statistical methods, length range of sampled individuals, sample size, capture gears and sampling time frame; (b) reproducible procedural criteria for parameter identification for a given species; and (c) a reliability metric for each parameter type. Complete life history parameter sets were available for 46 species analysed. Of these, only 16 species had parameter sets meeting the highest standards for reliability, highlighting future research needs.

show abstract

Section: Species Length-age Weight-length Maturitymentioning

confidence: 99%

Life history demographic parameter synthesis for exploited Florida and Caribbean coral reef fishes

2019

View full text Add to dashboard Cite

show abstract

“…with extensive experience in interpreting otolith sections (Burton ; Burton et al. ). Age determinations were made with no knowledge of the date of capture or fish size for each sample.…”

Section: Methodsmentioning

confidence: 99%

“…Growth of Knobbed Porgy was estimated as previously described by Burton et al. (). Specifically, we used the von Bertalanffy () growth model,

L_{t} = L_{\infty} false[1 - e^{- k false(t - t_{0} false)} false],

where

L_{\infty}

= the theoretical maximum length, k = the Brody growth coefficient (rate at which maximum size is attained), and t 0 = the theoretical age at a length of zero.…”

Section: Methodsmentioning

confidence: 99%

“…The species is included in a complex of reef fishes managed with a recreational 20‐fish daily aggregate bag limit and annual catch limits (ACLs), or quotas, applied to a multispecies porgy complex (Burton et al. ). The 2017 recreational and commercial ACLs for the porgy complex are 48,495 and 16,487 kg, respectively (SAFMC ).…”

mentioning

confidence: 99%

“…Burton et al. () documented the initial porgy complex closure on September 17, 2014, due to the quota being reached. The fishery closed again on September 3, 2016, when 131% of the recreational ACL was estimated to have been landed.…”

mentioning

confidence: 99%

See 2 more Smart Citations

Age, Growth, Natural Mortality, and Reproductive Seasonality of Knobbed Porgy from Southeastern United States Waters

et al. 2019

Self Cite

View full text Add to dashboard Cite

The Knobbed Porgy Calamus nodosus, an important secondary species in reef fish catches of the southeastern United States, was recently the subject of a fishery closure due to the porgy complex quota being exceeded. Knobbed Porgy (n = 448) were aged using sectioned sagittal otoliths. Opaque zones on otolith sections were annular, forming in March–July (peaking in May). Knobbed Porgy ranged from 1 to 21 years, and the largest fish measured 507 mm TL. Body size relationships relating TL, FL, and total body weight (W) for Knobbed Porgy were TL = 1.07·FL + 22.93 (n = 3,173; r2 = 0.97), FL = 0.91·TL − 12.54 (n = 3,173; r2 = 0.97), W = (1.38 × 10−5)TL3.03 (n = 12,732; r2 = 0.92), and W = (7.99 × 10−5)FL2.79 (n = 3,199; r2 = 0.90). Mean length at age was significantly different between Knobbed Porgy collected in North Carolina through southeast Florida (northern region) and those collected in the Florida Keys (southern region). The von Bertalanffy growth equations for Knobbed Porgy were Lt = 412[1 − e−0.20(t + 1.97)] (n = 448) for all regions combined, Lt = 403[1 − e−0.38(t + 0.0001)] (n = 117) for northern region fish, and Lt = 326[1 − e−0.42(t + 1.61)] (n = 331) for southern region fish. Age‐varying estimates of natural mortality were 0.36–0.79 year−1 (ages 2–21) for the northern region and 0.42–0.67 year−1 (ages 1–12) for fish from the Florida Keys. Hydrated oocytes were present during February–April in macroscopically staged ovaries (n = 148) for fish from the Florida Keys, and gonadosomatic index data indicated that the month of peak spawning in females was April. The updated life history information should be useful to fishery managers in formulating effective management strategies.

show abstract

Age-based life history traits of two endemic Labeobarbus species, L. tsanensis and L. platydorsus, from Lake Tana, Ethiopia

Gebremedhin

Bruneel

Getahun

et al. 2021

Mar. Freshwater Res.

View full text Add to dashboard Cite

The migratory and endemic Labeobarbus platydorsus and Labeobarbus tsanensis are threatened by extinction. This study is the first to use otolith microstructural analyses to infer life history traits of these species to assist in future conservation. We examined whole asterisci otoliths from 750 L. tsanensis and 542 L. platydorsus collected monthly between May 2016 and April 2017. The size of the L. tsanensis and L. platydorsus individuals collected was in the range 123–363- and 115–630-mm fork length respectively. For both species, 4- and 5-year-old individuals were dominant, whereas specimens older than 6 years were rarely recorded. The maximum ages recorded for L. tsanensis and L. platydorsus were 11 and 17 years respectively. Of the different growth models evaluated, the logistic growth model yielded the best fit to age-at-length data. For both species, growth parameters differed significantly between males and females, and sexual maturation proceeded faster in males than in females. Natural mortality estimates based on longevity were higher than the estimates based on growth parameters. For both species, females were predominant over males and the length–weight relationships were curvilinear. The estimated life history traits are important input parameters in further stock assessment evaluation of the species and should allow fisheries managers to optimise future conservation strategies.

show abstract

Age, growth, mortality and reproductive seasonality of jolthead porgy, Calamus bajonado, from Florida waters

Cited by 8 publications

References 12 publications

Life history demographic parameter synthesis for exploited Florida and Caribbean coral reef fishes

Life history demographic parameter synthesis for exploited Florida and Caribbean coral reef fishes

Age, Growth, Natural Mortality, and Reproductive Seasonality of Knobbed Porgy from Southeastern United States Waters

Age-based life history traits of two endemic Labeobarbus species, L. tsanensis and L. platydorsus, from Lake Tana, Ethiopia

Contact Info

Product

Resources

About