1-yr battery life – scheduled turn on/off Time-series data 30 kHz analog bandwidth Shallow water version a b c d Deep water version Acoustic Release EAR in alum housing Syntatic foam float hydrophone BACKGROUND Ecological Acoustic Recorder (EAR) Developed jointly – HIMB & NOAA (CRED)

OBJECTIVE: HiOOS Environmental Acoustics 1.Install a real-time acoustic monitoring system at the Kilo Nalu Ocean Near Shore Reef Observatory 2.Collect and analyze acoustic signals from a near shore reef environment

The Wet End Underwater Connector Hydrophone Modify EAR Ethernet ready (Jim Jolly & Dave Harris) Aluminum housing

(snapping shrimp) WHAT TO EXPECT FRENCH FRIGATE SHOALS Noon sunset sunrise

Dolphins WHAT TO EXPECT FRENCH FRIGATE SHOALS N = 133 Detections over deployment 4 consecutive nights

WHAT TO EXPECT Humpback whale FRENCH FRIGATE SHOALS First 12/06/06 Last 4/10/06 59 days French Frigate Shoal DecemberJanuaryFebruaryMarchAprilMay Triggered whale song detections

FRENCH FRIGATE SHOALS  FFS2 Type 4  FFS2 Type 6  9 distinct fish sounds WHAT TO EXPECT Fish

FRENCH FRIGATE SHOALS WHAT TO EXPECT Boats

THE BIGGER PICTURE 1. One acoustic observatory is great! 2. Two acoustic observatory is even better – Station Aloha

DOLPHIN WHISTLES FROM STATION ALOHA KHZ SEC HYDROPHONE AT 5 km depth  3 miles Dolphin whistles

THE BIGGER PICTURE 1. One acoustic observatory is great! 2. Two acoustic observatory is even better – Station Aloha 3. Many – multiple – EAR – simultaneous acoustic observatory is the best Have had a number of EARs on the Waianae coast to study spinner Dolphin utilization of the coast line 4.HIMB Teaming with NOAA – CRED NWHI Monument ONR 4 in NWHI & 4 more to be deployed this summer 3 in a array on a slokum glider – this summer feasibility test with OASIS PERHAPS WITH NOAA-PSD IN THE FUTURE 30 DEPLOYED WORLD-WIDE 13 for CRED

ONR Program – Fiscal Yr 2009 EARs simultaneously recording for dolphin & whale sounds

Kilo Nalu EAR FUTURE SPINNER DOLPHIN DISTRIBUTION PROJECT

CONCLUSIONS 1.Kilo-Nalu acoustics will be unique – like Station Aloha - provides real-time data 2.Good & important data can be obtained for scientific & management purposes 3.Still an emerging technology – hardware & data analysis 4. Future – web-based satellite links