The BLAGRRA Line Transects protocol is designed for rapidly assessing changes in total live stony coral color and cover during, and following, severe ecological perturbations like mass bleaching events, outbreaks of disease, oil spills or hurricanes. Relevance to Managers: Post-bleaching mortality can exceed that incurred during an actual bleaching event, especially when large, framebuilding species are affected. Being able to quickly survey many sites with easily trained staff or volunteers permits repeated sampling of large areas.

The BLAGRRA Belt Transects (which is equivalent to the AGRRA Coral Surveys) protocol is an optional supplement in which more experienced surveyors survey the population-level effects of an ecological emergency. It is available in two versions: basic and (more) detailed. Relevance to Researchers: Species composition and size are known to affect the responses of stony corals to severe perturbations.

Needed for all Surveys

BLAGRRA Surveys & Gear-V2.0

download as Acrobat (PDF) 

Needed for Line Transects

BLAGRRA Line Introduction

download as PowerPoint (PPT) 

BLAGRRA Line Instructions & Underwater Datasheet

download as Excel Worksheet (XLS) 

BLAGRRA Line Data Entry Instruction & Spreadsheet

download as Excel Worksheet (XLS) 

Needed for Belt Transects

BLAGRRA Belt Introduction

download as PowerPoint (PPT) 

BLAGRRA Basic Belt Instructions & Underwater Datasheet

download as Excel Worksheet (XLS) 

BLAGRRA Basic Belt Data Entry Instruction & Spreadsheet

download as Excel Worksheet (XLS) 

BLAGRRA Detailed Belt Instructions & Underwater Datasheet

download as Excel Worksheet (XLS) 

BLAGRRA Detailed Belt Data Entry Instruction & Spreadsheet

download as Excel Worksheet (XLS) 

From BLAGRRA Version 1

BLAGRRA-ITMENS Abstract

download as Adobe (PDF) 

BLAGRRA Database (09-2006 Version)

download as WinZip (ZIP) 

BLAGRRA Products (09-2006 Version)

download as WinZip (ZIP) 

Send questions to info@agrra.org and completed data spreadsheets to data@agrra.org.