Brief description
This database contains acoustic telemetry data for euryhaline elasmobranchs in northern Australian rivers. Data was collected under the National Environmental Research Program (NERP) Marine Biodiversity Hub Project 2.4 'Supporting Management of Listed and Rare Species', and the National Environmental Science Program (NESP) Marine Biodiversity Hub Project A1 'Northern Australian Hotspots for the Recovery of Threatened Euryhaline Elasmobranchs'. An acoustic receiver array was deployed in the Adelaide River, and another in the Alligator Rivers (primarily the South Alligator River) to monitor the movements, habitat use and natural mortality of threatened river sharks (Glyphis species) and sawfishes (Pristis species).Receiver deployment data is available through the IMOS Animal Tracking Facility database (visit https://animaltracking.aodn.org.au/receivers/deployment and search for project 'NESP Northern Australian hotspots for the recovery of threatened euryhaline species'). Detection data is currently embargoed until end 2023.
Lineage
Sampling was undertaken with a variety of fishing gear, mainly gillnet (4–6 inch stretched mesh size) and rod-and-line (medium-heavy shark fishing gear; small-medium hook sizes, 4/0–10/0). Longlines and cast nets were also used on occasion. Sawfish were targeted using gillnets, and river sharks mostly with rod-and-line. Processing catch included taking measurements, determining sex through external examination, photographing each individual, and collecting a small tissue sample from the inner margin of the pectoral fin (for molecular analyses). All individuals were tagged with a PIT tag for individual identification, and a subset was tagged with VEMCO acoustic tags (V9, V13 or V16) for telemetry studies. All fish were released at the site of capture, as was any bycatch.Sampling locations were recorded using a hand-held GPS unit (mainly Garmin GPS Map 78). Environmental data were measured at sampling locations using a Hydrolab Quanta with multiple sensors (temperature, conductivity, pH, dissolved oxygen, salinity), and a Hach turbidity meter.
Acoustic tags were surgically implanted into the stomach cavity of a subset of sharks and sawfish. Acoustic receivers (VEMCO VR2W) were moored from the river mouth to upstream tidal reaches to monitor tagged animals.
Further details of methodology can be found in: Kyne, P.M. and Pillans, R.D. (2014) Protocols for Surveying and Tagging Sawfishes and River Sharks. National Environmental Research Program Marine Biodiversity Hub, Hobart.
Notes
CreditNational Environmental Science Program (NESP) Marine Biodiversity Hub
Credit
National Environmental Research Program (NERP) Marine Biodiversity Hub
National Environmental Research Program (NERP) Marine Biodiversity Hub
Credit
Charles Darwin University
Charles Darwin University
Credit
Northern Territory Department of Primary Industries and Fisheries
Northern Territory Department of Primary Industries and Fisheries
Credit
Commonwealth Industrial and Scientific Research Organisation (CSIRO)
Commonwealth Industrial and Scientific Research Organisation (CSIRO)
Credit
Kakadu National Park
Kakadu National Park
Created: 2017-06-16
Data time period: 2011-10-01
text: northlimit=-11.9803783569; southlimit=-13.7795604258; westlimit=131.123698419; eastLimit=133.200114435
Subjects
ANIMALS/VERTEBRATES |
Acoustic telemetry |
BIOLOGICAL CLASSIFICATION |
BIOSPHERE |
Carcharhinus leucas |
EARTH SCIENCE |
ECOLOGICAL DYNAMICS |
ENDANGERED SPECIES |
Euryhaline elasmobranchs |
FISH |
Glyphis garricki |
Glyphis glyphis |
MIGRATORY RATES/ROUTES |
POPULATION DYNAMICS |
Pristis clavata |
Pristis pristis |
SHARKS/RAYS/CHIMAERAS |
SPECIES/POPULATION INTERACTIONS |
SURVIVAL RATES |
biota |
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Other Information
(DATA ACCESS - receiver deployment data available through the IMOS Animal Tracking Facility database (search for project 'NESP Northern Australian hotspots for the recovery of threatened euryhaline species'))
uri :
https://animaltracking.aodn.org.au/receivers/deployment
(NESP Project A1 [ANDS RDA record])
Identifiers
- global : 8e9746ed-20f8-4c1b-9437-1fa0d5e53264