SpotVA1: Age and length of spot.
In FSA: Simple Fisheries Stock Assessment Methods
SpotVA1 R Documentation
Age and length of spot.
Description
Ages (from otoliths) and lengths of Virginia Spot (Leiostomus xanthurus).
Format
A data frame of 403 observations on the following 2 variables:
- tl
Measured total lengths (in inches)
- age
Ages assigned from examination of otoliths
Details
Final length measurements were simulated by adding a uniform error to the value at the beginning of the length category.
Topic(s)
Growth
von Bertalanffy
Source
Extracted from Table 1 in Chapter 8 (Spot) of the VMRC Final Report on Finfish Ageing, 2002 by the Center for Quantitative Fisheries Ecology at Old Dominion University. CSV file
See Also
Used in vbFuns, vbStarts, and nlsTracePlot examples. Also see SpotVA2 in FSAdata for related data.
Examples
str(SpotVA1)
head(SpotVA1)
plot(tl~age,data=SpotVA1)
FSA documentation built on June 8, 2025, 11:56 a.m.
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| SpotVA1 | R Documentation |
Age and length of spot.
Description
Ages (from otoliths) and lengths of Virginia Spot (Leiostomus xanthurus).
Format
A data frame of 403 observations on the following 2 variables:
- tl
Measured total lengths (in inches)
- age
Ages assigned from examination of otoliths
Details
Final length measurements were simulated by adding a uniform error to the value at the beginning of the length category.
Topic(s)
Growth
von Bertalanffy
Source
Extracted from Table 1 in Chapter 8 (Spot) of the VMRC Final Report on Finfish Ageing, 2002 by the Center for Quantitative Fisheries Ecology at Old Dominion University. CSV file
See Also
Used in vbFuns, vbStarts, and nlsTracePlot examples. Also see SpotVA2 in FSAdata for related data.
Examples
str(SpotVA1)
head(SpotVA1)
plot(tl~age,data=SpotVA1)
R Package Documentation
Browse R Packages
We want your feedback!
Note that we can't provide technical support on individual packages. You should contact the package authors for that.
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