NOAA National Marine Fisheries Service
Bycatch regulations, research, monitoring, and engineering carried out by the National Marine Fisheries Service of the United States. 

NOAA's Bycatch Reduction Engineering Program   

Food and Agriculture Organization of the United Nations
A global assessment of fisheries bycatch and discards  

The IUCN Red List of Threatened Species
Information on the status of animal species world-wide, including information about the bycatch threat to marine animals from the International Union for Conservation of Nature

Cetacean Bycatch Resource Center
Sponsored by WWF, the Cetacean Bycatch Resource Center serves as an online clearinghouse for information, statistics, news, inquiries, scientific papers, technological advances and the latest developments in cetacean bycatch mitigation

Bird Life International Global Seabird Program  

Seabird Maps and Information for Fisheries
A web-based tool to identify the seabirds that may occur in a fishery area, and provide information about the seabirds useful to fishery evaluators, FIP managers, and anyone interested in reducing seabird bycatch.