Vol. 23 (2001) | African Journal of Marine Science

A decade of Namibian fisheries science
An introduction by the Honourable Minister of Fisheries and Marine Resources of Namibia, Dr Abraham Iyambo

Abraham Iyambo

1-4

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An overview of the living marine resources of Namibia

DC Boyer, I Hampton

5-35

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Identification and classification of vertical chlorophyll patterns in the Benguela upwelling system and Angola-Benguela front using an artificial neural network

NF Silulwane, AJ Richardson, FA Shillington, BA Mitchell-Innes

37-51

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Reproduction and recruitment patterns of the surf clam Donax serra (Bivalvia, Donacidae) on two Namibian sandy beaches

J Laudien, T Brey, WE Arntz

53-60

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The impact of emigration on population estimates of deep-sea red crab Chaceon maritae off Namibia

L Le Roux

61-66

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Changes in abundance of the northern Benguela sardine stock during the decade 1990 2000, with comments on the relative importance of fishing and the environment

DC Boyer, HJ Boyer, I Fossen, A Kreiner

67-84

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Influence of buoyancy and vertical distribution of sardine Sardinops sagax eggs and larvae on their transport in the northern Benguela ecosystem

EK Stenevik, S Sundby, R Cloete

85-97

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Variable spatial structure of schooling pelagic fish off Namibia: implications for acoustic surveys

JC Coetzee, OA Misund, G Oechslin

99-109

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Changes in some key biological parameters of the northern Benguela sardine stock

I Fossen, DC Boyer, H Plarre

111-121

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A comparison of condition factor and gona dosomatic index of sardine Sardinops sagax stocks in the northern and southern Benguela upwelling ecosystems, 1984–1999

A Kreiner, CD van der Lingen, P Fréon

123-134

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Observations on the linefish resources of Namibia, 1990–2000, with special reference to West Coast steenbras and silver kob

JA Holtzhausen, CH Kirchner, SF Voges

135-144

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Economic characteristics of demand in Namibia's marine recreational shore fishery

F Zeybrandt, JI Barnes

145-156

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An assessment of the current status and potential yield of Namibia's northern West Coast steenbras Lithognathus aureti population

JA Holtzhausen, CH Kirchner

157-168

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Age and growth of two populations of West Coast steenbras Lithognathus aureti in Namibian waters, based on otolith readings and mark-recapture data

JA Holtzhausen, CH Kirchner

169-179

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A review of orange roughy Hoplostethus atlanticus fisheries, estimation methods, biology and stock structure

TA Branch

181-203

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The orange roughy fishery of Namibia: lessons to be learned about managing a developing fishery

DC Boyer, CH Kirchner, MK McAllister, A Staby, BI Staalesen

205-221

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Development of acoustic techniques for assessment of orange roughy Hoplostethus atlanticus biomass off Namibia, and of methods for correcting for bias

DC Boyer, I Hampton

223-240

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Development of Bayesian stock assessment methods for Namibian orange roughy Hoplosthethus atlanticus

MK McAllister, CH Kirchner

241-264

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Comparison of horse mackerel length frequencies obtained from research vessels and commercial midwater trawlers: implications for biomass estimation

G Bauleth-D’Almeida, J-O Krakstad, A Kanandjembo

265-274

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Assessment of the monkfish Lophius vomerinus resource off Namibia

L Maartens, AJ Booth

275-290

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Quantifying commercial catch and effort of monkfish Lophius vomerinus and L. Vaillanti off Namibia

L Maartens, AJ Booth

291-306

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A decade of exploitation and management of the Namibian hake stocks

A van der Westhuizen

307-315

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Interaction between Cape hake spawning and the circulation in the northern Benguela upwelling ecosystem

S Sundby, AJ Boyd, L Hutchings, MJ O’Toole, K Thorisson, A Thorsen

317-336

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Dynamics of the pelagic component of Namibian hake stocks

T Iilende, T Strømme, E Johnsen

337-346

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Depth-stratified density estimates and distribution of the Cape hake Merluccius capensis and M. paradoxus off Namibia deduced from survey data, 1990 – 1999

L-M Burmeister

347-356

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Evaluation of a class of possible simple interim management procedures for the Namibian hake fishery

DS Butterworth, HF Geromont

357-374

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Towards a catchability constant for trawl surveys of Namibian hake

I Huse, T Iilende, T Str&#248mme

375-383

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Precision in systematic trawl surveys as assessed from replicate sampling by parallel trawling off Namibia

T Strømme, T Iilende

385-396

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The structure of demersal assemblages off Namibia in relation to abiotic factors

H Hamukuaya, G Bianchi, D Baird

397-417

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On the dynamics of demersal fish assemblages off Namibia in the 1990s

G Bianchi, H Hamukuaya, O Alvheim

419-428

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Recent population trends of African penguins Spheniscus demersus in Namibia

J Kemper, J-P Roux, PA Bartlett, YJ Chesselet, JAC James, R Jones, S Wepener, FJ Molloy

429-434

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African penguins as predators and prey — coping (or not) with change

RJM Crawford, JHM David, LJ Shannon, J Kemper, NTW Klages, J-P Roux, LG Underhill, VL Ward, AJ Williams, AC Wolfaardt

435-447

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Fish response to the annual flooding regime in the Kavango River along the Angola/Namibia border

CH Hocutt, PN Johnson

449-464

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African Journal of Marine Science
Journal / African Journal of Marine Science / Vol. 23 (2001) / Articles

Articles

A decade of Namibian fisheries science
An introduction by the Honourable Minister of Fisheries and Marine Resources of Namibia, Dr Abraham Iyambo

An overview of the living marine resources of Namibia

Identification and classification of vertical chlorophyll patterns in the Benguela upwelling system and Angola-Benguela front using an artificial neural network

Reproduction and recruitment patterns of the surf clam Donax serra (Bivalvia, Donacidae) on two Namibian sandy beaches

The impact of emigration on population estimates of deep-sea red crab Chaceon maritae off Namibia

Changes in abundance of the northern Benguela sardine stock during the decade 1990 2000, with comments on the relative importance of fishing and the environment

Influence of buoyancy and vertical distribution of sardine Sardinops sagax eggs and larvae on their transport in the northern Benguela ecosystem

Variable spatial structure of schooling pelagic fish off Namibia: implications for acoustic surveys

Changes in some key biological parameters of the northern Benguela sardine stock

A comparison of condition factor and gona dosomatic index of sardine Sardinops sagax stocks in the northern and southern Benguela upwelling ecosystems, 1984–1999

Observations on the linefish resources of Namibia, 1990–2000, with special reference to West Coast steenbras and silver kob

Economic characteristics of demand in Namibia's marine recreational shore fishery

An assessment of the current status and potential yield of Namibia's northern West Coast steenbras Lithognathus aureti population

Age and growth of two populations of West Coast steenbras Lithognathus aureti in Namibian waters, based on otolith readings and mark-recapture data

A review of orange roughy Hoplostethus atlanticus fisheries, estimation methods, biology and stock structure

The orange roughy fishery of Namibia: lessons to be learned about managing a developing fishery

Development of acoustic techniques for assessment of orange roughy Hoplostethus atlanticus biomass off Namibia, and of methods for correcting for bias

Development of Bayesian stock assessment methods for Namibian orange roughy Hoplosthethus atlanticus

Comparison of horse mackerel length frequencies obtained from research vessels and commercial midwater trawlers: implications for biomass estimation

Assessment of the monkfish Lophius vomerinus resource off Namibia

Quantifying commercial catch and effort of monkfish Lophius vomerinus and L. Vaillanti off Namibia

A decade of exploitation and management of the Namibian hake stocks

Interaction between Cape hake spawning and the circulation in the northern Benguela upwelling ecosystem

Dynamics of the pelagic component of Namibian hake stocks

Depth-stratified density estimates and distribution of the Cape hake Merluccius capensis and M. paradoxus off Namibia deduced from survey data, 1990 – 1999

Evaluation of a class of possible simple interim management procedures for the Namibian hake fishery

Towards a catchability constant for trawl surveys of Namibian hake

Precision in systematic trawl surveys as assessed from replicate sampling by parallel trawling off Namibia

The structure of demersal assemblages off Namibia in relation to abiotic factors

On the dynamics of demersal fish assemblages off Namibia in the 1990s

Recent population trends of African penguins Spheniscus demersus in Namibia

African penguins as predators and prey — coping (or not) with change

Fish response to the annual flooding regime in the Kavango River along the Angola/Namibia border

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