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296 datasets for “urchin”
- data.gov.au
Growth models, age frequency and size frequency distributions of sea urchin populations (Heliocidaris erythrogramma) in native macroalgal beds and sea urchin barrens
Australian Ocean Data NetworkUpdated 7 Sept 2026
Growth models were constructed for two sea urchin populations over a two-year period using a tag-recapture …
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- data.gov.au
Longspined sea urchin size and movement metrics (data accompanying: "The risky nightlife of undersized urchins")
Australian Ocean Data NetworkUpdated 1 Oct 2026
… 211 Centrostephanus rodgersii (longspined sea urchin) were measured for test diameter and spine canopy at Fortescue Bay, Tasmania …
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- data.gov.au
Management options to minimise formation of urchin barrens: assessing dynamics of incipient urchin barrens patches in eastern Tasmania using timed swims
Australian Ocean Data NetworkUpdated 19 Aug 2026
Timed GPS-tracked swims using SCUBA (45 and 30 minutes), were used to assess the changes in frequency …
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- data.gov.au
A pilot management program to maximise Tasmania's Sea Urchin (Heliocidaris erythrogramma) resource: Meredith Point, urchin density manipulations
Australian Ocean Data NetworkUpdated 19 Aug 2026
The main aim of this research program was to determine the potential for reducing the density of urchins …
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- data.gov.au
Sea urchin predation mortality rates
Australian Ocean Data NetworkUpdated 10 Sept 2026
Mortality rates of the sea urchin Heliocidaris erythrogramma where estimated under experimental conditions to determine the importance of …
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- data.gov.au
A pilot management program to maximise Tasmania's Sea Urchin (Heliocidaris erythrogramma) resource: Hope Island, urchin density manipulations
Australian Ocean Data NetworkUpdated 21 Aug 2026
The main aim of this research program was to determine the potential for reducing the density of urchins …
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- data.gov.au
Management options to minimise formation of urchin barrens: using belt transect surveys to monitor benthic community structure
Australian Ocean Data NetworkUpdated 23 Jun 2025
… Measures of percentage cover of key algal guilds, percentage of reef grazed by sea urchins, number of sea …
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- data.gov.au
Sea urchin and macroalgal cover in the western Mediterranean
Australian Ocean Data NetworkUpdated 19 Aug 2026
The data here presented shows the relationship between sea urchin numbers and algal cover in the Western Mediterranean …
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- data.gov.au
Presence of urchin barrens from annotated video
Australian Ocean Data NetworkUpdated 10 Jul 2026
Annotations of Centrostephanus rogersii sea urchin barrens derived from towed video at selected key abalone blocks along the …
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- data.gov.au
Presence of urchin barrens from annotated video
Australian Ocean Data NetworkUpdated 25 Sept 2026
Annotations of Centrostephanus rogersii sea urchin barrens derived from towed video at selected key abalone blocks along the …
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- data.gov.au
Video surveys of long spined sea urchin (Centrostephanus rodgersii) barrens habitat, eastern Tasmania
Australian Ocean Data NetworkUpdated 13 Jul 2026
… Substrate and habitat type were recorded using video analysis, with 4 categories of urchin barren habitat recognised (see …
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- data.gov.au
Video surveys of long spined sea urchin (Centrostephanus rodgersii) barrens habitat, Bicheno, eastern Tasmania
Australian Ocean Data NetworkUpdated 23 Jun 2025
The spatial extent of C. rodgersii "barrens" was estimated by surveying rocky reef habitat with a towed underwater …
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- data.gov.au
Video surveys of long spined sea urchin (Centrostephanus rodgersii) barrens habitat, Bicheno, eastern Tasmania
Australian Ocean Data NetworkUpdated 19 Aug 2026
The spatial extent of C. rodgersii "barrens" was estimated by surveying rocky reef habitat with a towed underwater …
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- data.gov.au
Video surveys of long spined sea urchin (Centrostephanus rodgersii) barrens habitat, Schouten Island, eastern Tasmania
Australian Ocean Data NetworkUpdated 25 Sept 2026
The spatial extent of C. rodgersii "barrens" was estimated by surveying rocky reef habitat with a towed underwater …
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- data.gov.au
Video surveys of long spined sea urchin (Centrostephanus rodgersii) barrens habitat, Recherche, eastern Tasmania
Australian Ocean Data NetworkUpdated 3 Sept 2026
The spatial extent of C. rodgersii "barrens" was estimated by surveying rocky reef habitat with a towed underwater …
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- data.gov.au
Video surveys of long spined sea urchin (Centrostephanus rodgersii) barrens habitat, Wineglass Bay, eastern Tasmania
Australian Ocean Data NetworkUpdated 19 Sept 2026
The spatial extent of C. rodgersii "barrens" was estimated by surveying rocky reef habitat with a towed underwater …
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- data.gov.au
Video surveys of long spined sea urchin (Centrostephanus rodgersii) barrens habitat, Nubeena, eastern Tasmania
Australian Ocean Data NetworkUpdated 19 Sept 2026
The spatial extent of C. rodgersii "barrens" was estimated by surveying rocky reef habitat with a towed underwater …
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- data.gov.au
Video surveys of long spined sea urchin (Centrostephanus rodgersii) barrens habitat, Maria Island, eastern Tasmania
Australian Ocean Data NetworkUpdated 4 Sept 2026
The spatial extent of C. rodgersii "barrens" was estimated by surveying rocky reef habitat with a towed underwater …
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- data.gov.au
Video surveys of long spined sea urchin (Centrostephanus rodgersii) barrens habitat, Fortescue Bay, eastern Tasmania
Australian Ocean Data NetworkUpdated 28 Sept 2026
The spatial extent of C. rodgersii "barrens" was estimated by surveying rocky reef habitat with a towed underwater …
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- data.gov.au
Abundance estimates of sea urchins and a suite of predators over multiple spatial scales.
Australian Ocean Data NetworkUpdated 15 Sept 2026
… sites in eastern Tasmania to quantify the abundance of the sea urchin Heliocidaris erythrogramma and several putative predators.
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