LATEST ARTICLES

This page lists 20 of the articles most recently published on nisc.co.za. Please note that you can also browse by journal or use the search function above. Subscribe to your favourite journals and be the first to know about new articles for it.

Value-chain analysis of Kenya’s artisanal tuna fishery focusing on skipjack tuna Katsuwonus pelamis and kawakawa Euthynnus affinis

Published in : African Journal of Marine Science, Journal Volume 47, Issue 1, 02 January 2025
Author(s): FA Mzingirwa , et al. ,
Keywords: artisanal fishers, economic benefits, food security, Indian Ocean tuna catch, marine fisheries, questionnaire survey, sustainability
Pages: 91–103
Article Views: 38
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Size structure and reproductive biology of skipjack tuna Katsuwonus pelamis and kawakawa Euthynnus affinis in the western Indian Ocean

Published in : African Journal of Marine Science, Journal Volume 47, Issue 1, 02 January 2025
Author(s): FA Mzingirwa , et al. ,
Keywords: artisanal fishery, East Africa, gear type, mean size, seasonality, sex ratio, size at maturity, South Africa
Pages: 77–90
Article Views: 36
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Genome-wide genetic-marker variation uncovers potential stock structuring of oceanic tuna (skipjack) and coastal tuna (kawakawa) within the western Indian Ocean

Published in : African Journal of Marine Science, Journal Volume 47, Issue 1, 02 January 2025
Author(s): FA Mzingirwa , et al. ,
Keywords: Euthynnus affinis, genetic stocks, genotyping, Katsuwonus pelamis, next-generation sequencing, single-nucleotide polymorphisms, sub-populations, sustainable management
Pages: 67–76
Article Views: 42
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The grazer Cymbula oculus (Patellogastropoda: Patellidae) serves as an important settlement substrate for several of its macroalgal prey

Published in : African Journal of Marine Science, Journal Volume 47, Issue 1, 02 January 2025
Author(s): W Moosa , et al. ,
Keywords: density, encrusting macroalgae, epibiosis, herbivory, keystone species, mollusc, secondary substrate, true limpet
Pages: 39–49
Article Views: 36
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Exploratory characterisation of recreational fishing for skipjack tuna Katsuwonus pelamis and eastern little tuna Euthynnus affinis in South Africa

Published in : African Journal of Marine Science, Journal Volume 47, Issue 1, 02 January 2025
Author(s): S Viana , et al. ,
Keywords: angler perceptions, angler specialisation, fishing preferences, kawakawa, non-commercial fishing, online questionnaire, tuna fisheries
Pages: 105–115
Article Views: 16
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Biometry, hatching efficiency, growth performance and survival of the brine shrimp Artemia franciscana from Tanzania

Published in : African Journal of Marine Science, Journal Volume 47, Issue 1, 02 January 2025
Author(s): AT Jacob , et al. ,
Keywords: Artemia cysts, chorion thickness, cyst size, hatching percentage, live feed, nauplii, Tanga Region
Pages: 31–37
Article Views: 16
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Assessing the socio-economic value of shark diving in the Protea Banks Marine Protected Area, South Africa

Published in : African Journal of Marine Science, Journal Volume 47, Issue 1, 02 January 2025
Author(s): ML Dicken , et al. ,
Keywords: Blue Economy, diving expenditures, ecotourism, KwaZulu-Natal, questionnaire survey, shark diving, valuation
Pages: 19–29
Article Views: 18
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Reproduction, recruitment, growth and mortality of co-occurring species of the intertidal limpet Siphonaria with contrasting reproductive modes

Published in : African Journal of Marine Science, Journal Volume 47, Issue 1, 02 January 2025
Author(s): CD McQuaid , et al. ,
Keywords: life history, pulmonate limpet, reproductive cycle, r–K selection, rocky shores, Siphonaria concinna, Siphonaria serrata, South Africa
Pages: 51–61
Article Views: 18
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Cross-realm biodiversity profile of the South African coastal zone

Published in : African Journal of Marine Science, Journal Volume 47, Issue 1, 02 January 2025
Author(s): LR Harris , et al. ,
Keywords: biodiversity patterns, coastal biodiversity, coastal conservation, ecosystem types, endemism, microtidal coast, shoreline
Pages: 1–18
Article Views: 27
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Taylor theory in quantum calculus: a general approach

Published in : Quaestiones Mathematicae, Journal Volume 48, Issue 3, 04 March 2025
Author(s): Enas M. Shehata , et al. ,
Keywords: 39A10, 39A13, 39A70, 47B39, β-difference operator, general quantum calculus, β-Taylor theory, β-Taylor formula, β-Taylor series
Pages: 377–394
Article Views: 70
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On z-ideals and z-closure operations of semirings, I

Published in : Quaestiones Mathematicae, Journal Volume 48, Issue 3, 04 March 2025
Author(s): Amartya Goswami , et al. ,
Keywords: Primary: 16Y60, Secondary: 16D25, Semiring, z-ideal, semiprime ideal, strongly irreducible ideal
Pages: 395–415
Article Views: 81
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On p-numerical radius inequalities for commutators of operators

Published in : Quaestiones Mathematicae, Journal Volume 48, Issue 3, 04 March 2025
Author(s): Abdelkader Frakis , et al. ,
Keywords: 47A12, 47A30, 47B10, 47B15, Schatten p-norm, p-numerical radius, operator norm, commutator, inequality
Pages: 417–428
Article Views: 78
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A note on the U-Dunford-Pettis operators

Published in : Quaestiones Mathematicae, Journal Volume 48, Issue 3, 04 March 2025
Author(s): Farid Afkir , et al. ,
Keywords: Primary: 46B42, Secondary: 47B60, 47B65, Dunford-Pettis operator, U-Dunford-Pettis operator, AM-compact operator, order continuous norm, Banach lattice
Pages: 429–436
Article Views: 73
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Distance dominator packing coloring of type II

Published in : Quaestiones Mathematicae, Journal Volume 48, Issue 3, 04 March 2025
Author(s): Jasmina Ferme , et al. ,
Keywords: 05C15, 05C70, 05C12, 05C69, Coloring, domination, packing coloring, dominator coloring, distance dominator packing coloring
Pages: 437–453
Article Views: 50
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Best approximation theorems via relatively u-continuous and Jaggi nonexpansive mappings

Published in : Quaestiones Mathematicae, Journal Volume 48, Issue 3, 04 March 2025
Author(s): M. Gabeleh , et al. ,
Keywords: Primary: 47H09, Secondary: 47H10, Best proximity point (pair), Jaggi relatively nonexpansive mapping, u-continuous, strictly convex Banach space
Pages: 455–474
Article Views: 40
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Parallel sum

Published in : Quaestiones Mathematicae, Journal Volume 48, Issue 3, 04 March 2025
Author(s): Stefan Stankov , et al. ,
Keywords: Primary: 15A09, Secondary: 47A05, Parallel sum, operators
Pages: 475–484
Article Views: 40
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Lattice points on polyominoes of inversion sequences

Published in : Quaestiones Mathematicae, Journal Volume 48, Issue 3, 04 March 2025
Author(s): José L. Herrera , et al. ,
Keywords: Primary: 05A15, Secondary: 05A19, Inversion sequences, generating function, interior points, vertex degree
Pages: 485–501
Article Views: 40
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A note on fibers and Vietoris topologies of paratopological groups

Published in : Quaestiones Mathematicae, Journal Volume 48, Issue 3, 04 March 2025
Author(s): Yu-Ming Deng , et al. ,
Keywords: Primary: 54E18, Secondary: 54H11, ωω -base, meta-Lindelöf, point-countable base, locally σ-space
Pages: 503–514
Article Views: 54
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Flows with constant slope on the Klein bottle

Published in : Quaestiones Mathematicae, Journal Volume 48, Issue 3, 04 March 2025
Author(s): Luís Barreira , et al. ,
Keywords: Primary: 34C05, Smooth flow with constant slope, Klein bottle, 2-dimensional torus
Pages: 515–523
Article Views: 40
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Minimising the eccentricity index in trees with given segment sequence

Published in : Quaestiones Mathematicae, Journal Volume 48, Issue 3, 04 March 2025
Author(s): Imran Allie , et al. ,
Keywords: 05C12, 05C05, 05C35, Trees, eccentricity, segment sequence
Pages: 525–539
Article Views: 44
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