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Juvenile shark occurrence inferred from baited remote underwater video surveys Northwest Australia (2003-2013)

This dataset describes the predicted occurrence of juvenile sharks around Northwest Australia, mapped over a 0.01 degree spatial grid. Juvenile sharks were mapped at two taxonomic levels: order by including all juvenile sharks sampled (all juveniles) and species by considering the three most abundant species sampled separately (grey reef (Carcharhinus amblyrhynchos), sandbar (Carcharhinus plumbeus), and whitetip reef (Triaenodon obesus) sharks). The data cover the period 2003-2013 and are derived from an analysis of count data derived from baited remote underwater videos deployed through various sampling programs. Further detail can be found in the following peer-reviewed publication: Oh, BZL, Sequeira, AMM, Meekan, MG, Ruppert, JLW and Meeuwig, JJ (2017), Predicting occurrence of juvenile shark habitat to improve conservation planning. Conservation Biology, 31: 635–645. doi:10.1111/cobi.12868


Below is a full list of species, with contributions to the total counted (%):

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Silvertip shark / Carcharhinus albimarginatus – 4.14%

Grey reef shark / Carcharhinus amblyrhynchos – 28.06%

Bronze whaler / Carcharhinus brachyurus – 0.18%

Galapagos shark / Carcharhinus galapagensis – 0.09%

Bull shark / Carcharhinus leucas – 0.18%

Common-Australian blacktip shark / Carcharhinus limbatus-C.tilstoni – 1.38%

Blacktip reef shark / Carcharhinus melanopterus – 1.56%

Sandbar shark / Carcharhinus plumbeus – 4.78%

Spot-tail shark / Carcharhinus sorrah – 0.18%

Tiger shark / Galeocerdo cuvier – 2.39%

Sliteye-Sharpnose shark / Loxodon macrorhinus-Rhizoprionodon spp. – 6.35%

Lemon shark / Negaprion acutidens – 1.01%

Whitetip reef shark / Triaenodon obesus – 18.95%

Tawny shark / Nebrius ferrugineus – 0.83%

Grey carpetshark / Chiloscyllium punctatum – 1.38%

Taselled wobbegong / Eucrossorhinus dasypogon – 0.09%

Scalloped hammerhead / Sphyrna lewini – 0.46%

Great hammerhead / Sphyrna mokarran – 3.86%

Zebra shark / Stegostoma fasciatum – 0.83%

Sicklefin houndshark / Hemitriakis falcata – 1.01%

Grey gummy shark / Mustelus ravidus – 0.28%


Archived BRUVS video files used in this study are the intellectual property of multiple institutions and industry partners and are not published in this record. See credits for further information.

Simple

Identification info

Date (Creation)
2016-09-27

Principal investigator

School of Animal Biology (SAB), The University of Western Australia (UWA), Australian Institute of Marine Science (AIMS) - Oh, Beverly
The University of Western Australia
35 Stirling Highway, Crawley
Perth
Western Australia
6009
Australia
0061 8 6488 1690
Credit
Australian Institute of Marine Science for access to BRUVS data, PTTEP Australasia Ltd for BRUVS data generated from a study, Roland Pitcher (Geoscience Australia) for access to environmental data collated by Geoscience Australia.
Credit
National Environmental Science Program (NESP) Marine Biodiversity Hub
Status
Completed

Point of contact

Centre for Marine Futures, The University of Western Australia (UWA) - Meeuwig, Jessica
35 Stirling Highway
Crawley
Western Australia
6009
Australia
+61 8 6488 1690
ORCID ID >

Principal investigator

School of Animal Biology (SAB), The University of Western Australia (UWA), Australian Institute of Marine Science (AIMS) - Oh, Beverly
The University of Western Australia
35 Stirling Highway, Crawley
Perth
Western Australia
6009
Australia
0061 8 6488 1690
Topic category
  • Biota

Extent

N
S
E
W


Temporal extent

Time period
2003-06-06 2013-04-22
Maintenance and update frequency
Not planned
Keywords (Theme)
  • marine protected areas
  • baited remote underwater video stations (BRUVS)
  • occurrence
  • wildlife distribution
Keywords (Taxon)
  • Sharks (Order Selachii)
Global Change Master Directory (GCMD) Earth Science Keywords Version 8.0
  • EARTH SCIENCE | AGRICULTURE | ANIMAL SCIENCE | ANIMAL ECOLOGY AND BEHAVIOR
  • EARTH SCIENCE | BIOLOGICAL CLASSIFICATION | ANIMALS/VERTEBRATES | FISH | SHARKS/RAYS/CHIMAERAS
  • EARTH SCIENCE | HUMAN DIMENSIONS | ENVIRONMENTAL IMPACTS | CONSERVATION
Keywords (Theme)
  • Predicted occurrence of all juvenile sharks
  • Predicted ocurrence of grey reef shark
  • Predicted occurrence of whitetip reef shark
  • Predicted occurrence of sandbar shark

Resource constraints

Classification
Unclassified

Resource constraints

Use limitation
The data described in this record are the intellectual property of the University of Western Australia and the Australian Institute of Marine Science.
Use limitation
This record is hosted by the Institute of Marine Science (IMAS), University of Tasmania (UTAS) on behalf of UWA and AIMS.

Resource constraints

Linkage
http://i.creativecommons.org/l/by/4.0/88x31.png

License Graphic

Title
Creative Commons Attribution 4.0 International License


>

Website
http://creativecommons.org/licenses/by/4.0/

License Text

Other constraints
The citation in a list of references is: citation author name/s (year metadata published), metadata title. Citation author organisation/s. File identifier and Data accessed at (add http link).
Other constraints
Data was sourced from the NESP Marine Biodiversity Hub – the Marine Biodiversity Hub is supported through funding from the Australian Government’s National Environmental Science Program (NESP), administered by the Department of the Environment (DOE).
Language
English
Character encoding
UTF8
Supplemental Information
Oh, BZL, Sequeira, AMM, Meekan, MG, Ruppert, JLW and Meeuwig, JJ (2017), Predicting occurrence of juvenile shark habitat to improve conservation planning. Conservation Biology, 31: 635–645. doi:10.1111/cobi.12868

Content Information

Content type
Physical measurement
Description
0.01 degree spatial grid
Name
Predicted occurrence of all juvenile sharks

Name
pred.Alljuv

Name
proportion
Description
0.01 degree spatial grid
Name
Predicted ocurrence of grey reef shark

Name
pred.Camb

Name
proportion
Description
0.01 degree spatial grid
Name
Predicted occurrence of whitetip reef shark

Name
pred.Tobe

Name
proportion
Description
0.01 degree spatial grid
Name
Predicted occurrence of sandbar shark

Name
pred.Cplu

Name
proportion

Distribution Information

Distribution format
  • ESRI Shapefile

OnLine resource
DATA ACCESS - predicted occurrence of juvenile sharks in NW Australia [zipped Shapefiles, direct download]

OnLine resource
ASSOCIATED PUBLICATION - Predicting occurrence of juvenile shark habitat to improve conservation planning [doi:10.1111/cobi.12868]

OnLine resource
NESP Project D1 [ANDS RDA record]

Resource lineage

Statement
The following information were extracted from 2,262 BRUVS deployments: shark species, number of sharks, shark fork length, sampling date, location (longitude and latitude at 0.01° precision), and soak time (number of hours the BRUVS were deployed). Sharks were classified as juveniles or adults based on published lengths at which 50% of the individuals were mature (i.e., juvenile < L50 ≤ adult; Last & Stevens 2009; Harry et al. 2011). Because sex could not be reliably determined from the video imagery, for species with sex-specific L50, we used an average of the lengths at male and female maturity. Presence-absence records were pooled at the taxonomic level of order for 21 species (hereafter “all juveniles”), and also for the three most abundant juvenile species sampled: grey reef, sandbar and whitetip reef sharks. Raw data were filtered and pooled for each grid cell with a resolution of 0.01° (284 presence and 441 absence records). For further details, see Oh, BZL, Sequeira, AMM, Meekan, MG, Ruppert, JLW and Meeuwig, JJ (2017), Predicting occurrence of juvenile shark habitat to improve conservation planning. Conservation Biology, 31: 635–645. doi:10.1111/cobi.12868
Hierarchy level
Dataset

Metadata

Metadata identifier
5af57072-c4c2-4a5a-bc72-62486dc6d73e

Language
English
Character encoding
UTF8

Point of contact

Institute for Marine and Antarctic Studies (IMAS), University of Tasmania (UTAS) - Emma Flukes (NESP Marine Biodiversity Hub Data Manager)
Private Bag 129
Hobart
Tasmania
7001
Australia
Parent metadata
  • NESP MB Project D1 - Ecosystem understanding to support sustainable use, management and monitoring of marine assets in the North and North-west regions

Type of resource

Resource scope
Dataset
Metadata linkage
https://metadata.imas.utas.edu.au/geonetwork/srv/eng/catalog.search#/metadata/5af57072-c4c2-4a5a-bc72-62486dc6d73e

Point of truth URL of this metadata record

Date info (Creation)
2018-12-14T17:00:00
Date info (Revision)
2018-12-14T17:00:00

Metadata standard

Title
ISO 19115-3:2018
 
 

Overviews

Spatial extent

N
S
E
W


Keywords

Predicted occurrence of all juvenile sharks Predicted occurrence of sandbar shark Predicted occurrence of whitetip reef shark Predicted ocurrence of grey reef shark baited remote underwater video stations (BRUVS) marine protected areas occurrence wildlife distribution
Global Change Master Directory (GCMD) Earth Science Keywords Version 8.0
EARTH SCIENCE | AGRICULTURE | ANIMAL SCIENCE | ANIMAL ECOLOGY AND BEHAVIOR EARTH SCIENCE | BIOLOGICAL CLASSIFICATION | ANIMALS/VERTEBRATES | FISH | SHARKS/RAYS/CHIMAERAS EARTH SCIENCE | HUMAN DIMENSIONS | ENVIRONMENTAL IMPACTS | CONSERVATION

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Associated resources

Not available


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