Spotted Handfish (Brachionichthys hirsutus) - GPS Underwater Visual Census - 2014-2022 repeated population surveys (NESP MB A10; MaC 1.23)

Dive surveys were conducted in 2014 and the same sites resurveyed annually until 2022 (excluding 2021), to establish a baseline and monitor the status of the critically endangered spotted handfish (Brachionichthys hirsutus) population. This dataset is a summary of all surveys season 2014 to 2022 (excluding 2021) in which the 11 sites across the Derwent Estuary and D'Entrecasteaux Channel were assessed. The data describes the search effort (transect length, swathed area) and counts of handfish observed on each transect, including size measurements (total length) and depth records for each sighted fish.

Identification info

Date (Revision): 2022-12-31

Identifier

Title: Information and documentation - Digital object identifier system

Citation identifier: ISO 26324:2012

Code: 10.25959/6PYW-AK

Codespace: doi.org

Description: Digital Object Identifier (DOI)

Principal investigator

CSIRO Oceans and Atmosphere - Lynch, Tim (Project Leader)

Tasmania

Australia

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ORCID >

Collaborator

Institute for Marine and Antarctic Studies - Stuart-Smith, Jemina

University of Tasmania

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Collaborator

CSIRO Oceans and Atmosphere - Devine, Carlie

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Collaborator

CSIRO Oceans and Atmosphere - McEnnulty, Felicity

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Collaborator

Institute for Marine and Antarctic Studies - Wong, Lincoln

University of Tasmania

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Credit: CSIRO

Credit: UTAS

Credit: Department of Climate Change, Energy, the Environment and Water (Funding)

Credit: Department of Primary Industries, Parks, Water and Environment (Funding)

Credit: National Environmental Science Program (NESP) Marine Biodiversity Hub (Funding)

Credit: National Environmental Science Program (NESP) Marine and Coastal Hub (Funding)

Status: Completed

Point of contact

CSIRO Oceans and Atmosphere - Lynch, Tim

Tasmania

Australia

ROR ID >

ORCID >

Point of contact

CSIRO Oceans and Atmosphere - McEnnulty, Felicity

Tasmania

Australia

ROR ID >

ORCID >

Topic category

Biota

Extent

Temporal extent

Time period: 2014-02-28 2022-11-03

Vertical element

Minimum value: 2

Maximum value: 20

Identifier: EPSG::5715

Name: MSL depth

Maintenance and update frequency: Annually

WoRMS - World Register of Marine Species

Brachionichthys hirsutus

AODN Geographic Extent Names

Coastal Waters (Australia) | Tasmania Coast East and Southeast, TAS

CSIRO Equipment

GCMD Earth Science Keywords

AODN Platform Vocabulary

diver

AODN Discovery Parameter Vocabulary

Abundance of biota

Keywords (Theme)

National Environmental Science Program (NESP) Marine and Coastal Hub

Resource constraints

Other constraints: This dataset is hosted by the Institute for Marine and Antarctic Studies (IMAS), University of Tasmania, on behalf of CSIRO through the National Environmental Science Program (NESP) Marine Biodiversity Hub and Marine and Coastal Hub.

Resource constraints

Classification: Unclassified

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: Cite data as: Lynch, T., Stuart-Smith, J., Devine, C., McEnnulty, F., & Wong, L. (2022). Spotted Handfish (Brachionichthys hirsutus) - GPS Underwater Visual Census - 2014-2022 repeated population surveys [Data set]. CSIRO & Institute for Marine and Antarctic Studies. https://doi.org/10.25959/6PYW-AK73

Language: English

Character encoding: UTF8

Supplemental Information: Lynch T, Green M and Davies C. 2015. Short communication: Diver towed GPS to estimate densities of a critically endangered fish. Biological Conservation 191:700-706. Lynch T,, Green M, Davies C. Diver towed GPS increases both statistical power to estimate densities and functionality to observe behaviours of sparsely distributed spotted handfish (Brachionichthys hirsutus, Lacépède 1804). Biological Conservation. 2015; 191(1 1):700-706. Wong LSC, Lynch TP, Barrett NS, Wright JT, Green MA, Flynn DJH (2018) Local densities and habitat preference of the critically endangered spotted handfish (Brachionichthys hirsutus): Large scale field trial of GPS parameterised underwater visual census and diver attached camera. PLoS ONE 13(8): e0201518. https://doi.org/10.1371/journal.pone.0201518

Content Information

Content type: Physical measurement

Description: Count of Spotted Handfish along transect

Identifier

Code: Abundance of biota

Name: Body length of Spotted Handfish

Name: Fish_length_mm

Identifier: http://vocab.nerc.ac.uk/collection/P06/current/UXMM

Name: Millimetres

Name: Depth of sighted Spotted Handfish

Name: Sighted_depth_m

Identifier: http://vocab.nerc.ac.uk/collection/P06/current/ULAA

Name: Metres

Description: 0 – No visible stress 1 – Threat display visible (dorsal, caudal fins erected) 2 – Movement visible, predominantly short distance 'walk' 3 – Escape response, short burst swim

Name: Stress response of fish

Name: Fish_Stress_Response

Name: Start time of dive transect (local)

Name: Time_Start

Name: End time of dive transect (local)

Name: Time_End

Name: Area of seafloor searched

Name: Swath_Area_m2

Identifier: http://vocab.nerc.ac.uk/collection/P06/current/UMSQ

Name: Square metres

Distribution Information

OnLine resource: DATA ACCESS - detailed Spotted Handfish surveys 2014 - 2022 [direct download]

OnLine resource: SUPPLEMENTARY DATA - Summary population statistics 1998 - 2019

OnLine resource: NESP:CSIRO_NESP_handfish_surveys
MAP - Spotted Handfish surveys

OnLine resource: CSIRO_NESP_handfish_surveys
This OGC WFS service returns the data for download in subsettable CSV format.

OnLine resource: Associated Publication
Lynch, Tim; Green, Mark; Wong, Lincoln; Bessell, Tyson; Cooper, A. J.; Valentine, J; Barrett, Neville; Ross, Jeff; McEnnulty, Felicity; Foster, Scott. Assessment of conservations actions for the critically endangered spotted handfish (Brachionichthyidae), following curation of data collected by multiple investigators into a long-term time-series. Journal for Nature Conservation. 2022; 69(126237):1-12. doi:10.1016/j.jnc.2022.126237

OnLine resource: Associated Publication
Wong LSC, Lynch TP, Barrett NS, Wright JT, Green MA, Flynn DJH (2018) Local densities and habitat preference of the critically endangered spotted handfish (Brachionichthys hirsutus): Large scale field trial of GPS parameterised underwater visual census and diver attached camera. PLoS ONE 13(8): e0201518. doi:10.1371/journal.pone.0201518

OnLine resource: Associated Publication
Lynch, T., Green, M. & Davies, C. Diver-towed GPS to estimate densities of a critically endangered fish. Biological Conservation 191 (2015): 700-706.

OnLine resource: Associated Publication
Lynch, Tim; Green, Mark; Davies, Claire. Diver towed GPS increases both statistical power to estimate densities and functionality to observe behaviours of sparsely distributed spotted handfish (Brachionichthys hirsutus, Lacépède 1804). Biological Conservation. 2015; 191(1 1):700-706. doi:102.100.100/91758

Resource lineage

Statement: Population surveys of spotted handfish (Brachionichthys hirsutus) were conducted during the non-breeding season (March – August) of 2014-2019. Surveys were conducted at 9 different location within the Derwent Estuary and 2 additional location in D'Entrecasteaux Channel. Data were collected using a variable length, GPS tracked underwater visual census method. Divers swam abreast approximately 0.5m-1m above the sediment to search for fish while towing a surface float with GPS housed onboard. The GPS tracked the position of the divers in real time and allowed extraction of spatial data post-hoc to determine searched distance to parameterise each transect. When B. hirsutus were located along the transect a series of photographs were taken to record the time of the sighting for cross-referencing with GPS spatial logs to determine the location of each sighting. The total length of each fish was measured to the nearest millimetre using a ruler placed laterally adjacent to the fish.

Hierarchy level: Dataset

Reference System Information

Reference system identifier: EPSG/WGS 84 (EPSG:4326)

Hierarchy level: Dataset

Platform

Identifier

Code: diver

Metadata

Metadata identifier: urn:uuid/51702b57-d4e4-4477-b199-b3485675f66c

Language: English

Character encoding: UTF8

Point of contact

Institute for Marine and Antarctic Studies - Emma Flukes (NESP Marine & Coastal Hub Data Manager (Southern node))

Parent metadata

NESP MaC Project 1.23 - Conservation of spotted handfish

Type of resource

Resource scope: Dataset

Metadata linkage: https://metadata.imas.utas.edu.au/geonetwork/srv/eng/catalog.search#/metadata/51702b57-d4e4-4477-b199-b3485675f66c
Point of truth URL of this metadata record

Date info (Creation): 2020-09-10T08:09:11

Date info (Revision): 2025-02-03T15:11:19

Metadata standard

Title: ISO 19115-3:2018

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