Erratum: Lead–radium dating of orange roughy (Hoplostethus atlanticus): validation of a centenarian life span

2009 ◽  
Vol 66 (9) ◽  
pp. 1632-1633 ◽  
Author(s):  
Allen H. Andrews ◽  
Dianne M. Tracey ◽  
Matthew R. Dunne
Keyword(s):  
Life Span ◽  
Orange Roughy ◽  
Hoplostethus Atlanticus

Lead–radium dating of orange roughy (Hoplostethus atlanticus): validation of a centenarian life span

2009 ◽  
Vol 66 (7) ◽  
pp. 1130-1140 ◽  
Author(s):  
Allen H. Andrews ◽  
Dianne M. Tracey ◽  
Matthew R. Dunn
Keyword(s):  
Life Span ◽  
Age Groups ◽  
Growth Zone ◽  
Age Validation ◽  
Orange Roughy ◽  
Thin Sections ◽  
Lead 210 ◽  
High Degree ◽  
Hoplostethus Atlanticus ◽  
Age Estimates

Life-span estimates for orange roughy ( Hoplostethus atlanticus ) range from ~20 years to well over 100 years. In this study, an improved lead–radium dating technique provided independent age estimates from sagittal otoliths. This technique used the known properties of radioactivity for lead-210 and radium-226 to determine the validity of fish age estimates. An improvement to lead–radium dating using mass spectrometry allowed the use of smaller samples than previously possible; therefore, an application was made to otolith cores, the first few years of otolith growth. This approach circumvented the use of whole otoliths and alleviated many of the assumptions that were necessary in previous lead–radium dating applications. Hence, it was possible to critically evaluate lead–radium dating as a tool in fish age validation. The measurement of lead–radium ratios for a series of age groups that consisted of otolith cores, grouped based on growth-zone counts from thin sections, showed a high degree of correlation to the expected lead–radium ingrowth curve. This finding provided support for age estimation procedures using thin otolith sectioning. As independent estimates of age, the results indicated that fish in the oldest age group were at least 93 years old, providing robust support for a centenarian life span.

scholarly journals Size‐fecundity relationships in the orange roughy,Hoplostethus atlanticus

1987 ◽  
Vol 21 (2) ◽  
pp. 295-299 ◽  
Author(s):  
N. W. Pankhurst ◽  
A. M. Conroy
Keyword(s):  
Orange Roughy ◽  
Hoplostethus Atlanticus

Avoidance of a camera system by a deepwater fish, the orange roughy (Hoplostethus atlanticus)

1995 ◽  
Vol 42 (2) ◽  
pp. 233-244 ◽  
Author(s):  
J.Anthony Koslow ◽  
R. Kloser ◽  
C.A. Stanley
Keyword(s):  
Orange Roughy ◽  
Camera System ◽  
Hoplostethus Atlanticus

Age determination and growth of orange roughy (Hoplostethus atlanticus): a comparison of annulus counts with radiometric ageing

1995 ◽  
Vol 52 (2) ◽  
pp. 391-401 ◽  
Author(s):  
David C. Smith ◽  
Simon G. Robertson ◽  
Gwen E. Fenton ◽  
Stephen A. Short
Keyword(s):  
Age Determination ◽  
Percentage Reduction ◽  
Age At Maturity ◽  
Otolith Growth ◽  
Two Stage ◽  
Orange Roughy ◽  
Mass Growth ◽  
Hoplostethus Atlanticus ◽  
Age Estimates ◽  
Radiometric Data

Ages of orange roughy (Hoplostethus atlanticus) determined by two methods (counting annuli on the surface of whole and in longitudinally sectioned otoliths) were similar up to maturity. Beyond maturity, age estimates from sectioned otoliths exceeded those from whole otoliths. Maximum recorded age was 125 years for an individual 41 cm standard length (SL), and age at maturity was estimated to be 25 years (30–32 cm SL). These are consistent with ages estimated previously by radiometric methods. Results demonstrated a two-stage linear relationship between otolith weight and age that confirmed the two-stage otolith mass growth model previously used in radiometric ageing. However, in the radiometric analyses the reduction in otolith growth was arbitrarily estimated at 45% of the immature rate whereas annuli data demonstrated a reduction after maturity to 62% of the immature rate. The new estimates of otolith mass growth rate were incorporated into the radiometric data and ages recalculated, which reduced age estimates for 38–40 cm SL fish from 77–149 to 59–101 years. The radiometric data were also recalculated using only the percentage reduction in otolith growth after maturity, giving the radiometric age of 125 ± 9 years for the oldest fish.

Spatial variation in reproduction, and occurrence of non-reproductive adults, in orange roughy, Hoplostethus atlanticus Collett (Trachichthyidae), from south-eastern Australia

1992 ◽  
Vol 40 (1) ◽  
pp. 107-122 ◽  
Author(s):  
J. D. Bell ◽  
J. M. Lyle ◽  
C. M. Bulman ◽  
K. J. Graham ◽  
G. M. Newton ◽  
...  
Keyword(s):  
Spatial Variation ◽  
Orange Roughy ◽  
South Eastern ◽  
Eastern Australia ◽  
Hoplostethus Atlanticus ◽  
South Eastern Australia

scholarly journals Genomic data suggest environmental drivers of fish population structure in the deep sea: A case study for the orange roughy ( Hoplostethus atlanticus )

2019 ◽  
Vol 57 (2) ◽  
pp. 296-306 ◽  
Author(s):  
Anders Gonçalves da Silva ◽  
William Barendse ◽  
James Kijas ◽  
Phillip R. England ◽  
A. Rus Hoelzel
Keyword(s):  
Population Structure ◽  
Deep Sea ◽  
Genomic Data ◽  
Fish Population ◽  
Environmental Drivers ◽  
Orange Roughy ◽  
Hoplostethus Atlanticus ◽  
Fish Population Structure

Diets of deepwater oreos (Oreosomatidae) and orange roughy Hoplostethus atlanticus

2016 ◽  
Vol 88 (6) ◽  
pp. 2275-2302 ◽  
Author(s):  
J. S. Forman ◽  
P. L. Horn ◽  
D. W. Stevens
Keyword(s):  
Orange Roughy ◽  
Hoplostethus Atlanticus
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