Publications

Kane et al. 2014


scientific article | Bull Mar Sci | open access Open access small aa108fa7f478951c693af64a05bc4b46e6711dbb69a20809512a129d4d6b870f

High levels of mesophotic reef fish endemism in the Northwestern Hawaiian Islands

Kane C, Kosaki RK, Wagner D

Adobe pdf ff6e8bea21f0598930b59d2452bacbad49a13eb0fa773865059b4c2ed088a358
Www fec836ca290318f37dc3ecd481f22b98faf488d5ddef687807ca6b76d8e893ed
Gscholar 58dd9f05df3b8d1811d087e8507325500777053d6677b471fd75373a30a4cee1
Abstract

The Papahānaumokuākea Marine National Monument surrounding the Northwestern Hawaiian Islands (NWHI) is the largest marine protected area in the United States and among the largest on Earth. The geographic isolation of this region has produced a unique biodiversity that is marked by particularly high levels of endemism. Previous surveys have revealed that on average 21% of reef fish species in the NWHI are endemic to the Hawaiian Archipelago. However, these endemism estimates are based on scuba surveys in shallow waters (<30 m). In areas with high water clarity like Hawaii, coral reefs can extend to depths exceeding 150 m. We conducted 52 mixed-gas dives and recorded a total of 179 reef fish species at mesophotic coral reef depths (30–90 m) across the NWHI. About 46% of encountered reef fishes in the NWHI are endemic to Hawaii, a value that is 16%–24% higher than previous shallow-water (<30 m) surveys in the NWHI, as well as nearly two-fold higher than in any other tropical region. As noted previously for shallow reefs in the NWHI, endemism appears to increase with latitude, as relative abundances of endemic reef fishes on mesophotic reefs ranged from 16% at the southernmost end of the NWHI, to upwards of 92% at the northernmost end of the NWHI. This unprecedented rate of endemism indicates that mesophotic reefs in the NWHI are reservoirs of biodiversity, and further underscores the need for protection of this area.

Research sites

10.5343   bms.2013.1053
Keywords
Meta-data
Depth range
30- 90 m

Mesophotic “mentions”
40 x (total of 3202 words)

Fields
Ecology Biodiversity Management and Conservation

Research focus
Fishes

Locations
USA - Hawaii

Research platforms
Diving - Technical Open-Circuit
Author profiles
Corinne Kane ( 5 pubs)
Randall Kosaki ( 10 pubs)
Daniel Wagner ( 20 pubs)