1. Feeding performance of piscivorous gobioid predator, Eleotris sandwicensis (O’opuAkupa) Takashi Maie Clemson University

2. Hawaiian Freshwater Stream Fauna Goby species – Sicyopterus stimpsoni, O’opuNopili – Lentipes concolor, O’opuAlamo’o – Awaous guamensis, O’opuNakea – Stenogobius hawaiiensis, O’opuNaniha Piscivorous gobioid predator – Eleotrissandwicensis, O’opuAkupa Entry to streams = Predation risk by Eleotris

3. Hawaiian Freshwater StreamFauna Goby species – Sicyopterus stimpsoni, O’opuNopili – Lentipes concolor, O’opuAlamo’o – Awaous guamensis, O’opuNakea – Stenogobius hawaiiensis, O’opuNaniha Piscivorous gobioid predator – Eleotrissandwicensis, O’opuAkupa Does Eleotris predation have similar impacts across goby populations? Entry to streams = Predation risk by Eleotris

4. Eleotrid Feeding SicyoperusvsAwaous as prey fish (Captured/Escaped) Contingency Table (one-tail)

5. Result (preliminary) P = 0.0426Captured (Eaten)Escaped (Not eaten) Awaous guamensis29 (76.3%)9 (23.1%) Sicyopterus stimpsoni54 (58.7%)38 (41.3%)

6. Result (preliminary) P = 0.0426Captured (Eaten)Escaped (Not eaten) Awaous guamensis29 (76.3%)9 (23.1%) Sicyopterus stimpsoni54 (58.7%)38 (41.3%) Does Eleotris predation have similar impacts across goby populations?

7. Result (preliminary) P = 0.0426Captured (Eaten)Escaped (Not eaten) Awaous guamensis29 (76.3%)9 (23.1%) Sicyopterus stimpsoni54 (58.7%)38 (41.3%) NO!! Does Eleotris predation have similar impacts across goby populations?

8. Result (preliminary) P = 0.0426Captured (Eaten)Escaped (Not eaten) Awaous guamensis29 (76.3%)9 (23.1%) Sicyopterus stimpsoni54 (58.7%)38 (41.3%) NO!! Sicyopterus – Retention time (36 hrs for metamorphosis) in stream mouths prior to upstream migration Predation Pressure by Eleotris – A driving force for morphological change in Sicyopterus for better predator evasion performance Does Eleotris predation have similar impacts across goby populations?

9. Mahalo! Bob Nishimoto, Darrel Kuamo’o, Lance Nishiura, Tim Shindo, Troy Shimoda, Troy Sakihara&Alysha Cabral (Hawai’i DAR, Hilo) Blob lab, Kristine Moody (Clemson) Schoenfuss lab (St. Cloud State) NSF