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Open Access Content loaded within last 14 days Comparing mesophotic and shallow reef fish assemblages in the 'Au'au Channel, Hawaii: fish size, feeding guild composition, species richness, and endemism

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Mesophotic (30–150 m) reef fish assemblages in the 'Au'au Channel, between the Hawaiian Islands of Maui and Lanai, were compared visually with neighboring shallow (<30 m depth) reef fish assemblages for differences in structure. Between 2007 and 2011, approximately 7000 mesophotic and 4000 shallow reef fishes were identified, sized (standard length), and assigned to seven foraging guilds. The shallow water zone had more species than the mesophotic zone (99 vs 80, respectively). Mesophotic planktivores and two herbivore species were significantly larger than their shallow reef counterparts. Shallow reef fish assemblages had a higher Chao1 estimated species richness for herbivores and corallivores but not the other five foraging guilds. The differences between mesophotic and shallow fish assemblages indicate that both have unique communities of high conservation importance.
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Document Type: Research Article

Affiliations: 1: NOAA NMFS Pacific Islands Fisheries Science Center 1845 Wasp Blvd. Building 176, Honolulu, Hawaii, 96818-5007;, Email: [email protected] 2: Hawai'i Pacific University, 41-202 Kalaniana'ole Highway, Waimanalo, Hawaii, 96795 3: NOAA NMFS Pacific Islands Fisheries Science Center 1845 Wasp Blvd. Building 176, Honolulu, Hawaii, 96818-5007

Publication date: October 1, 2020

This article was made available online on April 21, 2020 as a Fast Track article with title: "Comparing mesophotic and shallow reef fish assemblages in the ‘Au‘au Channel, Hawai‘i: fish size, feeding guild composition, species richness, and endemism".

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  • The Bulletin of Marine Science is dedicated to the dissemination of high quality research from the world's oceans. All aspects of marine science are treated by the Bulletin of Marine Science, including papers in marine biology, biological oceanography, fisheries, marine affairs, applied marine physics, marine geology and geophysics, marine and atmospheric chemistry, and meteorology and physical oceanography.
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