Browsing by Author "Twatwa, N M"

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Refined estimates of South African pelagic fish biomass from hydro-acoustic surveys: quantifying the effects of target strength, signal attenuation and receiver saturation

Author: Coetzee, J C ; Merkle, D ; de Moor, C L ; Twatwa, N M ; Barange, M ; Butterworth, Doug S Date: 2008 The biomass of small pelagic fish species off the coast of South Africa has been monitored since 1984 using hydro-acoustic survey techniques. These time-series of spawner biomass and recruitment estimates form the basis for management of both ... Read more
Refined estimates of South African pelagic fish biomass from hydro-acoustic surveys:quantifying the effects of target strength, signal attenuation and receiver saturation

Author: Coetzee, J C ; Merkle, D ; De Moor, Carryn L ; Twatwa, N M ; Barange, M ; Butterworth, Doug S Date: 2008 The biomass of small pelagic fish species off the coast of South Africa has been monitored since 1984 using hydro-acoustic survey techniques. These time-series of spawner biomass and recruitment estimates form the basis for management of both ... Read more

Now showing items 1-2 of 2

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