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fishmethods (version 1.12-1)

Fishery Science Methods and Models

Description

Functions for applying a wide range of fisheries stock assessment methods.

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Version

Install

install.packages('fishmethods')

Monthly Downloads

966

Version

1.12-1

License

GPL (>= 2)

Maintainer

Gary Nelson

Last Published

April 27th, 2023

Functions in fishmethods (1.12-1)

bheq

Length-based Beverton-Holt Equilibrium Total Instantaneous Mortality Estimator
bhnoneq

Length-based Beverton-Holt Nonequilibrium Z Estimator
agesurv

Age-based Survival Estimators
alkD

Sample Size Determination for Age Subsampling Using the D statistic
alkss

Sample Size Determination for Age Subsampling
alkdata

Age-Length Key for Gulf of Hauraki snapper, 1992-1993
agesurvcl

Age-Based Survival and Mortality Estimators for Cluster Sampling
alkprop

Age-Length Key Proportions-At-Age
alk

Create An Age-Length Key
astrocalc4r

Solar zenith angles for biological research
bonito

Data from an age and growth study of the pacific bonito.
buffalo

Life Table Data for African Buffalo
catch.select

Selectivity Ogive from a Catch Curve
clus.rho

Intracluster Correlation Coefficients for Clustered Data
clus.mean

Estimation of Population Attributes and Effective Sample Size for Fishes Collected Via Cluster Sampling
catch

Number of cod captured in 10 standardized bottom trawl hauls from Massachusetts, 1985
clus.lf

Statistical Comparison of Length Frequencies from Simple Random Cluster Sampling
bt.log

Back-transformation of log-transformed mean and variance
catchsurvey

Catch-Survey Analysis
catchmsy

Estimating MSY from catch and resilience
clus.t.test

Correcting a Two-Sample Test for Clustering
compare2

Comparisons of two age readers or two aging methods
codcluslen

Lengths of Atlantic cod caught during Massachusetts Division of Marine Fisheries bottom trawl survey, spring 1985.
clus.rho.g

Calculate A Common Intracluster Correlation Coefficient Among Groups
combinevar

Combining Mean and Variances from Multiple Samples
clus.str.lf

Statistical Comparison of Length Frequencies from Stratified Random Cluster Sampling
compare.lrt.plus

Comparison of growthlrt.plus model objects
clus.vb.fit

Fit a Von Bertalanffy growth equation to clustered data via bootstrapping
deltadist

Delta Distribution Mean and Variance Estimators
codstrcluslen

Lengths of Atlantic cod caught during Massachusetts Division of Marine Fisheries stratified random bottom trawl survey, spring 1985.
ep.data

A sub-sample of data from a simulated population collected via length-stratified age sampling
ep_growth

Fitting the von Bertalanffy growth model to length-stratified age samples
dbsra

Depletion-Based Stock Reduction Analysis
deplet

Catch-Effort Depletion Methods For a Closed Population
dlproj

This function performs projections for dbsra and catchmsy objects
cpuekapp

Trawl survey based abundance estimation using data sets with unusually large catches
darter

Catch Removal Data For Fantail Darter
counts

Run size data for alewife (Alosa pseudoharengus)
cowcod

Catch data (metric tons) for cowcod Sebastes levis 1900 to 2008
fm_model_avg

Model Averaging for the Telemetry Method of Hightower et al. (2001)
goosefish

Mean Length and Numbers of Lengths for Northern Goosefish, 1963-2002
grotagplus

Flexible maximum likelihood estimation of growth from multiple tagging datasets.
fpc

Fishing Power Correction Factor from Experimental Fishing
epr

Eggs-Per-Recruit Analysis
convmort

Conversion of Mortality Rates
gap

Tukey's Gapping
grotag

Maximum likelihood estimation of growth and growth variability from tagging data - Francis (1988)
growhamp

von Bertalanffy Growth Models for Tagging Data Incorporating Individual Variation
fm_telemetry

Estimation of Fishing and Natural Mortality from Telemetry Data
growth_sel

Fitting a von Bertalanffy curve to length and age data biased by gear selectivity
growthResid

Plot residuals of growth model fitted to tag data
growthTraject

Plot growth trajectories obtained from tagging data
growth

Fitting Growth Curves to Length- or Weight-at-Age Data
growthlrt.plus

Likelihood Methods for Comparing Multiple Growth Curves
fm_checkdesign

Check parameter structure of Hightower et al. (2001) models
menhaden

Biological data for menhaden (Brevoortia tyrannus)
growthmultifit

Fit a Multi-Group Growth Model
growtrans

Growth Transition Matrix for a Size-Structured Population Dynamics Model
growthlrt

Likelihood Ratio Tests for Comparing Multiple Growth Curves
kappenman

Pacific cod catch per effort from Table 1 in Kappenman (1999)
lifetable

Life Table Construction
irm_h

Age-Independent Instantaneous Rates Tag Return Model of Hoenig et al. (1998)
maki

Data from Maki et al. 2001
haddock

Biological data for haddock (Melanogrammus aeglefinus)
irm_cr

Age-Independent Instantaneous Rates Model of Jiang et al. (2007) Incorporating Catch and Release Tag Returns
mort.al

Estimation of Mortality using Times-At-Large Data from Tagging
mature

Estimation of proportion mature at age when immature fish are unavailable
pgen

Probability of a Management Parameter Exceeding a Reference Point
remp

Random Number Generation from an Empirical Distribution
nshrimp

Data for Gulf of Maine northern shrimp
rig

Tagging data from a growth study of rig
mrN.single

Estimate of Population Size from a Single Mark-Recapture Experiment
pwpop

Estimate Net Reproductive Rates Over Multiple Periods Of An Abundance Time Series Using Piecewise Regression
print.grotagplus

Printing Tagging-Growth Objects
simulus

Age and size data for the growth_sel function
schnabel

Population Size Estimates from Repeated Mark-Recapture Experiments
sr

Estimation and Model Comparison of Stock-Recruitment Relationships
rockbass

Age Frequency Data for Rock Bass
sblen

Total length (inches) of striped bass collected by Massachusetts volunteer anglers in 2014
vbfr

Francis' re-parameterization of the von Bertalanffy growth equation for length-age data
striper

Recruitment Numbers and Female Spawning Stock Biomass for Striped Bass
trout

Mark-recapture data for Kenai River trout trout
pinfish

Length, age and sex data for pinfish (Lagodon rhomboides) from Tampa Bay, Florida
ypr

Yield-Per-Recruit Analysis
surveyref

Quantitative reference points from stock abundance indices based on research surveys
zt

Z-transform or center a time series
surveyfit

Estimating the Relative Abundance of Fish From a Trawl Survey
lingcod

Catch data (metric tons) for lingcod 1889 to 2001
slca

A Weakly Parametric Method for the Analysis of Length Composition Data
opt_slot

Optimum Slot and Trophy Size Limits for Recreational Fisheries
opt_trophy

Optimum Trophy Size Limits for Recreational Fisheries
wolffish

Spring untransformed mean catch per tow for wolffish (Anarhichas lupus)
yellowtail

Fall average catch per tow for southern New England yellowtail flounder
powertrend

Power Analysis For Detecting Trends
sole

Flathead sole CPUEs
plot.grotagplus

Plotting Tagging-Growth Objects
tanaka

Simulated alfonsino data for Tanaka (2006
tag_model_avg

Model Averaging for Instantaneous Rates Tag Return Models
sbotos

Otolith ages of striped bass made by two age readers
sbpr

Spawning Stock Biomass-Per-Recruit Analysis
Hightower

Original data used in Hightower et al. (2001)
Jiang

Tag Data from Jiang (2005)
Shepherd

Seasonal Length Frequencies for Raja clavata
Gerking

Mark-Recapture Data for Sunfish in an Indiana Lake
AtkaMack

Length and Age Data For Male and Female Atka Mackerel
Hoenig

Tag Data from Hoenig et al. (1998)
P.donacina

Data from a growth study of New Zealand intertidal clams.
Jensen

Age Frequency Data for Lake Whitefish By Individual Haul
Kimura

Length and Age Data For Male and Female Pacific Hake
M.empirical

Estimation of Natural Mortality Rates from Life History Parameters