A temperature compensated von bertalanffy growth model for tagged red drum and black drum in Texas bays

Doerzbacher, Jeff F.; Green, A.W.; Matlock, Gary C.; Osburn, H.R.

doi:10.1016/0165-7836(88)90033-1

Cited by 7 publications

(7 citation statements)

References 17 publications

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“…Sectioned otoliths from fish older than 18 months at capture were measured as follows: At 63× under white ligh, the distance to the nearest ocular micrometer unit (16.26 μm) was measured from the core to the distal edge of the first annulus, taken proximally along the ventral side of the sulcus acousticus. Distances recorded were used as a surrogate for estimating size at age (Doersbacher et al 1988). Using this technique, we could infer relative size at age 18 months (February) for wild year‐classes that had recruited to the population before we had initiated the stocking, regardless of time of capture (e.g., first annulus location for a fish from the 1993 YC collected in fall 1997 could be pooled with that of a fish from the same year‐class collected in summer 1995).…”

Section: Methodsmentioning

confidence: 99%

Year‐Class Component, Growth, and Movement of Juvenile Red Drum Stocked Seasonally in a South Carolina Estuary

Denson

Bridgham

Collins

et al. 2004

N American J Fish Manag

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Red drum Sciaenops ocellatus have been classified by the Atlantic States Marine Fisheries Commission as overfished in the Atlantic off the southeastern USA. A study was conducted to evaluate stocking hatchery‐reared fish as a management tool to increase abundance of red drum in South Carolina estuaries. Multiple groups of juveniles, at mean sizes of 22–56 mm total length, were released after being marked by immersion in 15 g/L salinity brackish water containing oxytetracycline HCl (500 mg/L active). Fish were released into a small (535‐ha) part of the available nursery habitat (total = 25,000 ha) in the Port Royal Sound estuary each fall and spring from fall 1995 through spring 1997. During fall 1995 and spring 1996, 347,000 fish were stocked; during fall 1996 and spring 1997, the number was 1,228,000. Movement of hatchery fish from the release site was monitored for at least 2 years after release. Overall, hatchery fish accounted for 19.0% of the 627 fish (age 0 to age 2) captured from the 1995 year‐class and 19.4% of the 687 fish (age 0 to age 2) captured from the 1996 year‐class. The portion of each year‐class that was of hatchery origin was greatest at the release site (1995 year‐class = 58.6%; 1996 year‐class = 77.3%). However, marked hatchery fish from the 1996 year‐class (range, 8–38%) were also captured after more than 2 years at large and as far as 35 km from the release site. The presence of hatchery fish did not appear to reduce the growth of wild fish even at the higher stocking density tested (2,295 fish/ha). Sex ratios of hatchery and wild fish were not significantly different. Hatchery fish released in the fall were captured 1.5 times more often than fish released in the spring. Additional studies are necessary to determine whether hatchery releases can be used to increase overall abundance.

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Section: Methodsmentioning

confidence: 99%

Year‐Class Component, Growth, and Movement of Juvenile Red Drum Stocked Seasonally in a South Carolina Estuary

Denson

Bridgham

Collins

et al. 2004

N American J Fish Manag

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“…() found a significantly better fit ( P < 0.001) when growth was modeled for each sex separately than when sexes were aggregated in the analysis, whereas other studies aggregated the sexes (Rohr ; Wakefield and Colura ; Doerzbacher et al. ; Murphy and Taylor ; Matlock ; Porch ). From a model specification perspective, the von Bertalanffy growth function (VBGF) is commonly used to describe the length‐at‐age relationship (Beckman et al.…”

mentioning

confidence: 94%

“…There is broad variation in reported age-growth models for Red Drum because of disagreement on the presence of sexually dimorphic growth and because there remains some question about which models best describe individual growth dynamics. Beckman et al (1989) found a significantly better fit (P < 0.001) when growth was modeled for each sex separately than when sexes were aggregated in the analysis, whereas other studies aggregated the sexes (Rohr 1980;Wakefield and Colura 1983;Doerzbacher et al 1988;Murphy and Taylor 1990;Matlock 1992;Porch 2000). From a model specification perspective, the von Bertalanffy growth function (VBGF) is commonly used to describe the length-at-age relationship (Beckman et al 1989;Murphy and Taylor 1990;Ross et al 1995).…”

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confidence: 99%

Sex‐Specific Growth and Reproductive Dynamics of Red Drum in the Northern Gulf of Mexico

2019

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The Red Drum Sciaenops ocellatus stock is heavily targeted in the Gulf of Mexico (GOM) by recreational fishers and supports a small commercial fishery in Mississippi. Despite their popularity, little recent work has been done to describe their life history. In this work, we describe sex‐specific growth and reproductive dynamics of Red Drum collected from the northern GOM from September 2016 through October 2017. We evaluated seven candidate growth models and found that the three‐parameter von Bertalanffy growth function (VBGF) was the best candidate length‐at‐age model. No significant difference in growth between sexes was observed with the three‐parameter VBGF, despite the female‐specific curve having a larger mean asymptotic length than the male‐specific curve. All seven candidate growth models predicted similar mean length‐at‐age estimates, and four of them exhibited significant differences in sex‐specific mean length at age, with females reaching a larger length at age than males after age 5. There was no significant difference between the sex‐specific weight‐at‐length relationships. Red Drum are batch spawners that spawn in northern GOM coastal waters during August and September. We estimated 3.7 d between spawns and 10.5 spawning events per female in 2017. Nearly 20% of fish collected during the spawning season were sexually mature but reproductively inactive, indicating the possibility of skipped spawning. The age at 50% maturity was around 3 years (length at 50% maturity = 670 mm TL) in both sexes, but fish were not spawning capable until age 4.5 (703 mm TL) in males and age 5.8 (840 mm TL) in females. Furthermore, elevated gonadosomatic indices were not observed until around age 5–6. The updated life history information presented in this work helps to address current data limitations and provides critical information for future assessments of Red Drum stocks in the northern GOM.

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“…The growth rates of juvenile black drum in Texas have been determined by ana· lyzing length-frequency modes (Pearson, 1929;Simmons and Breuer, 1962). Tagging programs have also provided information on drum growth in Texas bays (Doerzbacher, 1988).…”

mentioning

confidence: 99%

Reproduction and Growth of Black Drum, Pogonias cromis, in Northeast Florida

Murphy¹,

Taylor²

1989

negs

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A temperature compensated von bertalanffy growth model for tagged red drum and black drum in Texas bays

Cited by 7 publications

References 17 publications

Year‐Class Component, Growth, and Movement of Juvenile Red Drum Stocked Seasonally in a South Carolina Estuary

Year‐Class Component, Growth, and Movement of Juvenile Red Drum Stocked Seasonally in a South Carolina Estuary

Sex‐Specific Growth and Reproductive Dynamics of Red Drum in the Northern Gulf of Mexico

Reproduction and Growth of Black Drum, Pogonias cromis, in Northeast Florida

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