Margit R. Wilhelm
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View article: fishboot: Bootstrap-Based Methods for the Study of Fish Stocks and Aquatic Populations
fishboot: Bootstrap-Based Methods for the Study of Fish Stocks and Aquatic Populations Open
View article: Blue carbon in an eastern boundary upwelling zone – A case study in Namibia
Blue carbon in an eastern boundary upwelling zone – A case study in Namibia Open
View article: Unveiling Ecosystem Shifts in the Southern Benguela Through Otolith Biochronologies of Sardine (<scp><i>Sardinops sagax</i></scp>)
Unveiling Ecosystem Shifts in the Southern Benguela Through Otolith Biochronologies of Sardine (<span><i>Sardinops sagax</i></span>) Open
Sardine ( Sardinops sagax ) in the southern Benguela has shown substantial changes in population size over the past 70 years. Heavy fishing pressure in the 1950s to early 1970s caused the collapse of sardine stocks in South Africa. A fishe…
View article: Diet, feeding, and niche overlap of west coast steenbras (<i>Lithognathus aureti</i>) and silver kob (<i>Argyrosomus inodorus</i>) in the northern <scp>Benguela</scp>
Diet, feeding, and niche overlap of west coast steenbras (<i>Lithognathus aureti</i>) and silver kob (<i>Argyrosomus inodorus</i>) in the northern <span>Benguela</span> Open
In this study, we described and compared the diet, monthly feeding intensity, and condition of west coast steenbras ( Lithognathus aureti ) and silver kob ( Argyrosomus inodorus ) caught at a unique habitat in the northern Benguela. Stomac…
View article: Climate risk assessment of the fisheries in Namibia
Climate risk assessment of the fisheries in Namibia Open
In Namibia, fisheries are important for food security and protein provisioning, income generation and trade; but they are vulnerable to the impacts of climate change. Not only does climate change impact the marine living resources crucial …
View article: Horizon scan survey to identify key research questions to promote sustainability of the marine recreational fishery in Namibia
Horizon scan survey to identify key research questions to promote sustainability of the marine recreational fishery in Namibia Open
Recreational fishing is popular worldwide, but many low‐ and middle‐income countries (LMICs) are experiencing increased participation and reduced catches. Like other LMICs, the recreational fishery in Namibia is facing concerns regarding i…
View article: Otolith Shape Analysis as a Tool for Species Identification and Management of Cryptic Congeners in an Ocean Warming Hotspot
Otolith Shape Analysis as a Tool for Species Identification and Management of Cryptic Congeners in an Ocean Warming Hotspot Open
View article: Unique Southern African Terrestrial and Oceanic Biomes and Their Relation to Steep Environmental Gradients
Unique Southern African Terrestrial and Oceanic Biomes and Their Relation to Steep Environmental Gradients Open
The southern African subcontinent and its surrounding oceans accommodate globally unique ecoregions, characterized by exceptional biodiversity and endemism. This diversity is shaped by extended and steep physical gradients or environmental…
View article: Selected parasites of silver kob (Argyrosomus inodorus) (Actinopterygii: Sciaenidae) from northern Namibia
Selected parasites of silver kob (Argyrosomus inodorus) (Actinopterygii: Sciaenidae) from northern Namibia Open
The present study reports five metazoan parasites recorded from silver kob (Argyrosomus inodorus). Five fish were collected monthly (n=55) for 11 months in 2017–2018 (excluding July 2017) using conventional angling gear in Toscanini, Mile …
View article: The effects of dietary garlic (Allium sativum) and Aloe vera crude extract mixtures supplementation on growth performance, feed utilization, hematological parameters, whole body composition, and survival at low pH in African catfish (Clarias gariepinus) juveniles
The effects of dietary garlic (Allium sativum) and Aloe vera crude extract mixtures supplementation on growth performance, feed utilization, hematological parameters, whole body composition, and survival at low pH in African catfish (Clarias gariepinus) juveniles Open
View article: Northern Benguela Merluccius paradoxus Annual Growth From Otolith Chronologies Used for Age Verification and as Indicators of Fisheries-Induced and Environmental Changes
Northern Benguela Merluccius paradoxus Annual Growth From Otolith Chronologies Used for Age Verification and as Indicators of Fisheries-Induced and Environmental Changes Open
In this study we develop a 32-year (1982-2013) otolith biochronology of the commercially important deepwater hake Merluccius paradoxus in the northern Benguela, Namibia. Mean annual growth (mm) calculated from 140 thin-sectioned M. paradox…
View article: Dietary garlic (Allium sativum) crude polysaccharides supplementation on growth, haematological parameters, whole body composition and survival at low water pH challenge in African catfish (Clarias gariepinus) juveniles
Dietary garlic (Allium sativum) crude polysaccharides supplementation on growth, haematological parameters, whole body composition and survival at low water pH challenge in African catfish (Clarias gariepinus) juveniles Open
View article: Effect of dietary Aloe vera polysaccharides supplementation on growth performance, feed utilization, hemato-biochemical parameters, and survival at low pH in African catfish (Clarias gariepinus) fingerlings
Effect of dietary Aloe vera polysaccharides supplementation on growth performance, feed utilization, hemato-biochemical parameters, and survival at low pH in African catfish (Clarias gariepinus) fingerlings Open
This study evaluated the effects of dietary Aloe vera polysaccharides on growth performance, feed utilization, hemato-biochemical parameters, and resistance against low water pH in African catfish (Clarias gariepinus) fingerlings. Fish wer…