The shorezone coastal dataset as a research tool
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The ShoreZone Coastal Dataset as a Research Tool. John Harper, Coastal & Ocean Resources Inc. Jodi Harney, “ Neil Borecky, “ Mary Morris, Archipelago Marine Research Ltd. Susan Saupe , Cook Inlet RCAC Mandy Lindeberg , NOAA.NMFS, Auke Bay Lab K Koski, The Nature Conservancy.

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The ShoreZone Coastal Dataset as a Research Tool

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The ShoreZone Coastal Dataset as a Research Tool

John Harper, Coastal & Ocean Resources Inc.

Jodi Harney, “

Neil Borecky, “

Mary Morris, Archipelago Marine Research Ltd.

Susan Saupe, Cook Inlet RCAC

Mandy Lindeberg, NOAA.NMFS, Auke Bay Lab

K Koski, The Nature Conservancy


Acknowledgements

Funding Partners:

Alaska Department of Natural Resources Cook Inlet RCAC

Exxon Valdez Oil Spill Trustee Council National Park Service

NOAA/NMFS

Prince William Sound RCAC

The Nature Conservancy


Research Highlights

  • BC province-wide dataset

    • 37,000 km of ShoreZone

  • Queen Charlotte Islands Herring Spawn

    • 27 years of herring spawn data

    • 4,660 km of ShoreZone

  • Sitka Sound Sand Lance Spawn Model


173 second Introduction to ShoreZone Mapping Method


  • Flight-path (Prince of Wales Is)

  • lowest tides of the year

  • shoreline videography and photos


688

690

687

689


Upper Beachface

Cobble-pebble over sand

Beach Berm

Pebble over sand

Lower Beachface

Boulder-cobble-pebble over sand

Low-tide Terrace

Sand-mud


dune grass

rockweed

eelgrass

soft browns


Research Highlights

  • BC province-wide dataset

    • 37,000 km of ShoreZone

  • Queen Charlotte Islands Herring Spawn

    • 27 years of herring spawn data

    • 4,660 km of ShoreZone

  • Sitka Sound Sand Lance Spawn Model


Eelgrass Distribution

(5,183 km; 16%)

“old data”


Macrocystis Distribution

(Giant Kelp)

“old data”


Nereocystis Distribution

(Bull Kelp)

“old data”


Urchin Barren BioBand

(Strongylocentrotus franciscanus)

Areas of intensive urchin grazing, leaving only a white, calcareous algae

Ground photo Gwaii Haanas National Park, 1992


Aerial view of Urchin Barren


Fisheries and Oceans Canada using kelp and urchin barren biobands to represent urchin habitat capability. Model complements fishers’ log-book data and DFO dive site data to establish catch quota.

Urchin Barren Distribution

Dan Leus, Fisheries and Oceans Canada, Urchin Fishery Manager

“Personally, I see the future of the [ShoreZone] database as being a bible for the shellfish group here. ”

“old data”


Research Highlights

  • BC province-wide dataset

    • 37,000 km of ShoreZone

  • Queen Charlotte Islands Herring Spawn

    • 27 years of herring spawn data

    • 4,660 km of ShoreZone

  • Sitka Sound Sand Lance Spawn Model


Queen Charlotte Islands

Herring – ShoreZone Analysis


Queen Charlotte Islands

Herring Spawn Dataset

  • The Queen Charlotte Islands shoreline is 4,660 km in length

  • There are 7,895 mapped ShoreZone units

  • Fisheries & Oceans Canada has mapped spawn locations for 27 years (1970 to 1997)


Moresby Island

Englefield Bay

Herring spawn polygon data were snapped to Shore Units


  • Summary indicates a total of 753 km have had spawn in at least one year of the 27 year dataset.

  • Map shows a few significant locations where spawn was very frequent (16-21 yr of the 27 year data record).


Expanded view of Juan Perez Sound shows frequency of occurrence relative to Shore Units – 11 km of High Frequency Spawn Occurrence are shown.


Comparison of Island-wide Occurrence to High-Spawn Occurrence

Occurrence of BioBands (island-wide)

Where relative proportion of spawn locations are greater than island-wide occurrence, a spawning preference is indicated:

Fucus

Ulva

Soft Brown algae

Zostera

Macrocystis


Research Highlights

  • BC province-wide dataset

    • 37,000 km of ShoreZone

  • Queen Charlotte Islands Herring Spawn

    • 27 years of herring spawn data

    • 4,660 km of ShoreZone

  • Sitka Sound Sand Lance Spawn Model


Sitka Sound

Sand Lance Beach Spawning Model


ShoreZone Research ApplicationsSUMMARY

  • Three examples of using regional datasets for resource management:

    • Urchin fishery catch quotas

    • Herring spawn model

    • Sand Lance beach spawning model

www.CoastAlaska.net


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