Table · dataset · 2019

ROV Surveys of the Mid-depth and Deep Subtidal Ecosystems, California North Coast MPA Baseline Study, 2014 to 2015

Listed in California Open Data

Description

Marine Applied Research and Exploration (MARE) preformed quantitative baseline surveys within the NCSR in 2014 and 2015 with the overall goal to describe the condition of three distinctive priority ecosystem features within four MPAs and their adjacent reference study areas: a) mid-depth rock ecosystems, b) softbottom subtidal ecosystems, and c) deep ecosystems (including canyons). Long-term monitoring trends within these habitats will be compared to baseline conditions, assisting in evaluating MPA effectiveness.

The four MPAs chosen for evaluation include: Point St. George Reef Offshore SMCA, Reading Rock State Marine Reserve, Mattole Canyon State Marine Reserve and Ten Mile State Marine Reserve. Outside reference areas with similar habitats and depths were also surveyed for comparison.

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During the first two years following implementation, benthic visual surveys were conducted using a remotely operated vehicle (ROV) to assess initial changes in fishes, macro-invertebrates and associated seafloor habitats. The ROV collected video and still imagery while moving along a fixed path (transect) along the sea floor. Video imagery collected was analyzed to characterize substrate, habitat types, habitat complexity (rugosity), and estimate finfish and macro-invertebrate distribution, relative abundance and density.

In total, 60 ROV dives were completed surveying more than 106 km (19 ha) between 13 and 421 m deep. In addition, over 16,500 still photos were taken.

Topics

Stated by source: Natural Resources · Water
From keywords: Earth & Environmental Science · Engineering · Life Sciences · Ocean & Atmospheric Science
Inferred from text: Oceanography 72% · Video 75%

Provenance · 1 source records, 15 field assertions

Source	Key	Last seen	Raw
California Open Data	19e0ebcb-d2e8-4959-97e5-da019344b5bd	13 d ago	JSON v1

Field	Assertion	Extractor	Evidence
access_level	source · data ca gov	connector:data_ca_gov@1.0.0
concepts[field].anzsrc:group:3708	enrichment · data ca gov	taxonomy-embedding@1.1.0	title+keywords+description (72%)
concepts[field].local:field:earth-environmental	mapping · data ca gov	connector:data_ca_gov@1.0.0
concepts[field].local:field:engineering	mapping · data ca gov	connector:data_ca_gov@1.0.0
concepts[field].local:field:life-sciences	mapping · data ca gov	connector:data_ca_gov@1.0.0
concepts[field].local:field:ocean-atmospheric	mapping · data ca gov	connector:data_ca_gov@1.0.0
concepts[modality].local:modality:video	enrichment · data ca gov	keyword-concept-rules@1.0.0	title+description (75%)
concepts[topic].ckan_group:data_ca_gov:natural-resources	source · data ca gov	connector:data_ca_gov@1.0.0
concepts[topic].ckan_group:data_ca_gov:water	source · data ca gov	connector:data_ca_gov@1.0.0
created_date	source · data ca gov	connector:data_ca_gov@1.0.0
description	source · data ca gov	connector:data_ca_gov@1.0.0	/notes
license_text	source · data ca gov	connector:data_ca_gov@1.0.0
publication_date	source · data ca gov	connector:data_ca_gov@1.0.0
title	source · data ca gov	connector:data_ca_gov@1.0.0	/title
updated_date	source · data ca gov	connector:data_ca_gov@1.0.0

ROV Surveys of the Mid-depth and Deep Subtidal Ecosystems, California North Coast MPA Baseline Study, 2014 to 2015

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