Simulating sea lion dives to assess the probability of post-exit drowning for sea lions exiting SLEDs / David A. J. Middleton.

By: Middleton, D. A. J. (David A. J.).
Contributor(s): New Zealand. Ministry for Primary Industries [issuing body.] | Fisheries New Zealand (Government agency).
Material type: materialTypeLabelBookSeries: New Zealand aquatic environment and biodiversity report: 225Publisher: Wellington : Fisheries New Zealand, Tini a Tangaroa, 2019.Description: 1 online resource : colour illustrations.Content type: text Media type: computer Carrier type: online resourceISBN: 9780995127166 (online).Subject(s): SEA LIONS | NEW ZEALAND SEA LIONS | PHOCARCTOS HOOKERI | BYCATCH | BYCATCH EXCLUSION DEVICES | FISHERIES | NEW ZEALANDHoldings: ELECTRONIC Online resources: AEBR 225 Fisheries Infosite | NIWA document server Summary: Data on sea lion dives was used to construct a model that represents the process of sea lion exit from nets via Sea Lion Exclusion Devices. The model produces estimates of total sea lion deaths as a result of interactions with trawls, including any animals that run out of air after exiting the net. Under a range of assumptions, the results suggest scalers of between 1.2 and 1.5 for estimating total deaths from observed deaths.
List(s) this item appears in: New Zealand Aquatic Environment and Biodiversity Report
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Includes bibliographical references.

Data on sea lion dives was used to construct a model that represents the process of sea lion exit from nets via Sea Lion Exclusion Devices. The model produces estimates of total sea lion deaths as a result of interactions with trawls, including any animals that run out of air after exiting the net. Under a range of assumptions, the results suggest scalers of between 1.2 and 1.5 for estimating total deaths from observed deaths.

ELECTRONIC

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