1: Introduction | 2: Installation | 2.1: Installation From CRAN | 2.2: Installation of Development Version From GitHub | 3: Using AnnotationBustR | 3.1:(Optional Step) Finding the Longest Available | 3.2: Load a Data Frame of Search Terms of Gene Synonyms to Search With: | 3.3:(Optional Step) Merge Search Terms If Neccessary | 3.4 Extract sequences with AnnotationBust | 3.5 Troubleshooting | 4: Final Comments

1: Introduction | 2: Installation | 2.1: Installation From CRAN | 2.2: Installation of Development Version From GitHub | 2.3 Installation Requirements for Windows OS users | 3: Using rcatfish | 3.1: Basic data necessary to run rcatfish | 3.2: Using rcatfish to Search for Species and Genera in Eschmeyer's Catalog of Fishes (rcatfish_search) | 3.2.1 The type Parameter in rcatfish_search | 3.2.2 The query, phrase, unavailable, and resolve Parameters in rcatfish_search | 3.2.3 The common.name Parameter in rcatfish_search | 3.2.4 The taxon.history Parameter in rcatfish_search | 3.2.5 Other Parameters in rcatfish_search | 3.3: Using rcatfish to Search for References in Eschmeyer's Catalog of Fishes (rcatfish_references) | 3.4: Using rcatfish to See Recent Catalog Updates | 3.5: Using rcatfish to Obtain the Number of Species and Genera Described Per Taxonomic Entity | 3.6: Browsing the Eschmeyer's Catalog of Fishes Classification | 3.7: Accessing Eschmeyer's Catalog of Fishes Glossary | 3.8: Using rcatfish to Obtain Information on the Journals Cited in the Catalog of Fishes | 3.9: Using rcatfish to Search the Eschmeyer's Catalog of Fishes Guide to Fish Collection | 4.0: Troubleshooting | 5.0: Final Comments | References:

1: Introduction | 2: Installation | 2.1: Installation From CRAN | 2.2: Installation of Development Version From GitHub | 3: Using dietr | 3.0: Basic Data Necessary to Run dietr for Trophic level Calculations | 3.1: Using dietr to Calculate Trophic Levels From FishBase Diet Data | 3.2: Using dietr to Calculate Trophic Levels from FishBase Food Item Data | 3.3: Using dietr to Calculate Trophic Levels From Your Own Data | 3.4: Using dietr to Calculate Electivity Indices | 3.5: Using dietr to Calculate Composite Diet Indices | 3.5: Using dietr to Calculate the Gastro-somatic Index and Vacuity Index | 4: Final Comments | 5: References