A Method for Quantifying Biogenic Habitat from Stationary Underwater Video, Information Report 2016-04

Identification Information

Citation

Originator: Lawrence, Kelly A., Jessica L. Watson, and Brittany E. Huntington

Publish Date: 2016

Online Link: None

BPA Project #:

Contact Information

Agency: Oregon Department of Fish and Wildlife

Name: Cedric Cooney

Job Position: Natural Resources Data and Systems Manager

Telephone: 503-947-6094

E-Mail Address: cedric.x.cooney@odfw.oregon.gov

Description

Abstract: Benthic habitat structure is an important predicator of species distribution, diversity, and abundance, for marine fishes (Jennings et al. 1996; Friedlander and Parrish 1998; Hallenbeck et al. 2012). Habitat structure is often described by the type of geologic substrate (i.e. bedrock, sand, etc.), the structural relief (i.e., rugosity), and the diversity of substratum within a given area. Yet, habitat structure is not exclusively comprised of geologic substrates, but also by the sessile, biogenic life inhabiting these geologic substrates (Gratwicke and Speight 2005; Reed and Hovel 2006). The composition and diversity of both geologic and biogenic habitat structure can be described as habitat complexity. Moreover, fish species richness and abundance has been shown to increase with increasing habitat complexity (Gratwicke and Speight 2005), where complexity was scored based on both geological characteristics (i.e., substratum, rugosity) as well as biogenic characteristics (i.e., biogenic growth form diversity, height, size, and cover). Many of the studies evaluating both geologic and biogenic habitat metrics occur in shallow systems such as coral reefs (Friedlander and Parrish 1998), seagrass beds (Reed and Hovel 2006), and kelp forests (Bodkin 1988) or in deep-water, soft bottom habitats (Du Preez and Tunnicliffe 2011). Species-habitat correlations in temperate, rocky reef habitats of the Northeast Pacific, relating specifically to biogenic structure, are much less common (but see Holbrook et al. 1990; Hartney and Grorud 2002).

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Geographic Extent: Oregon

Status: Final

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Format: PDF

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