Dear list-members: We are writing a review of fixed passive acoustic monitoring (PAM) technologies for marine mammals and automated detection and classification methods that can be used to process the large amounts of data collected from these systems. The review will consist of the following topics: 1. Fixed Autonomous Underwater Recorders 2. Fixed cabled and radio-linked hydrophones (and hydrophone arrays) 3. Automated detection & classifications methods (e.g. computer algorithms). We are requesting information from list-members on these technologies and techniques, particularly those that may not be published in the peer-reviewed literature and/or products or efforts that are not otherwise easily available. In return we would be willing to provide anyone with information an extensive bibliography on these topics as an endnote (bibliographic database) or text file. We have provided some additional details on each of these 3 topics below. 1. Fixed Autonomous Underwater Recorders Please include information about the development of the device; capability to record other types of data besides sounds; ability to automatically detect/classify/localize sounds; depth rating including maximum deployment depth (m), instrument retrieval and deployment configuration; maximum deployment time; maximum sampling frequency; type of power supply and energy capacity; type of data storage; data format; microprocessor used; custom software used, if any; examples of species studied; number of channels; system configuration, including dimensions and weight, deployment, and other retrieval issues; any known noise issues; availability; and potential areas for further development. 2. Fixed-cabled and radio-lined hydrophone systems We are interested in information about commercial, non-profit and academic efforts to develop, operate, and use fixed cabled hydrophones and radio-linked hydrophones for monitoring marine mammal sounds. We are especially interested in reports and unpublished information about the design and application of these technologies for marine mammal studies. Information about commercial products and services are welcome if they are relevant to the topics listed above. 3. Automated detection & classifications methods (e.g. computer algorithms). We are looking for information regarding software or algorithms that can be used for the automatic detection and classification of marine mammal sounds (ie whale calls, dolphin whistles, echolocation, etc). Although any details would be helpful, we are specifically interested in detailed information about methods used and the success rate/false positive rate of detection and classification algorithms, audio formats supported user-friendliness of the software, whether the software can be used in real-time, for post-processing or both, and availability and cost of the software. Also, any references or reports either describing the software or studies in which it has been used would be greatly appreciated. Please respond to: fixed.pam@gmail.com We appreciate any replies. Cheers, Tom Norris Bio-Waves Inc Julie Oswald University of Hawaii Renata S. Sousa-Lima Cornell BRP