| Name : R-aLBI
| |
| Version : 0.1.5
| Vendor : obs://build_opensuse_org/devel:languages:R
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| Release : lp154.1.1
| Date : 2024-07-29 09:53:52
|
| Group : Development/Libraries/Other
| Source RPM : R-aLBI-0.1.5-lp154.1.1.src.rpm
|
| Size : 0.67 MB
| |
| Packager : https://www_suse_com/
| |
| Summary : Estimating Length-Based Indicators for Fish Stock
|
Description :
Provides tools for estimating length-based indicators from length
frequency data to assess fish stock status and manage fisheries
sustainably. Implements methods from Cope and Punt (2009)
< doi:10.1577/C08-025.1> for data-limited stock assessment and Froese
(2004) < doi:10.1111/j.1467-2979.2004.00144.x> for detecting overfishing
using simple indicators. Key functions include: CalPar(): Calculates
various lengths used in fish stock assessment as biological length
indicators such as asymptotic length (Linf), maximum length (Lmax),
length at sexual maturity (Lm), and optimal length (Lopt). FishPar():
Calculates length-based indicators (LBIs) proposed by Froese (2004)
< doi:10.1111/j.1467-2979.2004.00144.x> such as the percentage of mature
fish (Pmat), percentage of optimal length fish (Popt), percentage of
mega spawners (Pmega), and the sum of these as Pobj. This function also
estimates confidence intervals for different lengths, visualizes length
frequency distributions, and provides data frames containing calculated
values. FishSS(): Makes decisions based on input from Cope and Punt
(2009) < doi:10.1577/C08-025.1> and parameters calculated by FishPar()
(e.g., Pobj, Pmat, Popt, LM_ratio) to determine stock status as target
spawning biomass (TSB40) and limit spawning biomass (LSB25). These
tools support fisheries management decisions by providing robust,
data-driven insights.
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RPM found in directory: /packages/linux-pbone/ftp5.gwdg.de/pub/opensuse/repositories/devel:/languages:/R:/autoCRAN/15.4/x86_64 |
