https://commons.ufh.ac.za/vital/access/manager/Index ${session.getAttribute("locale")} 5 https://commons.ufh.ac.za/vital/access/manager/Repository/vital:71386 Wed 31 Jan 2024 09:57:45 SAST ]]> https://commons.ufh.ac.za/vital/access/manager/Repository/vital:55699 Wed 31 Aug 2022 14:53:49 SAST ]]> https://commons.ufh.ac.za/vital/access/manager/Repository/vital:59284 Wed 30 Nov 2022 09:48:34 SAST ]]> https://commons.ufh.ac.za/vital/access/manager/Repository/vital:55905 Wed 28 Sep 2022 09:57:46 SAST ]]> https://commons.ufh.ac.za/vital/access/manager/Repository/vital:44924 Wed 27 Oct 2021 20:17:20 SAST ]]> https://commons.ufh.ac.za/vital/access/manager/Repository/vital:71911 Wed 27 Mar 2024 10:39:41 SAST ]]> https://commons.ufh.ac.za/vital/access/manager/Repository/vital:53638 Wed 27 Jul 2022 10:32:49 SAST ]]> https://commons.ufh.ac.za/vital/access/manager/Repository/vital:55291 Wed 24 Aug 2022 10:25:44 SAST ]]> https://commons.ufh.ac.za/vital/access/manager/Repository/vital:47131 Wed 23 Feb 2022 12:00:23 SAST ]]> https://commons.ufh.ac.za/vital/access/manager/Repository/vital:59660 Wed 22 Feb 2023 08:46:13 SAST ]]> https://commons.ufh.ac.za/vital/access/manager/Repository/vital:44802 Wed 20 Oct 2021 12:24:32 SAST ]]> https://commons.ufh.ac.za/vital/access/manager/Repository/vital:45191 Wed 20 Apr 2022 14:32:37 SAST ]]> https://commons.ufh.ac.za/vital/access/manager/Repository/vital:52002 Wed 19 Oct 2022 14:21:27 SAST ]]> https://commons.ufh.ac.za/vital/access/manager/Repository/vital:65839 Wed 19 Jul 2023 15:48:09 SAST ]]> https://commons.ufh.ac.za/vital/access/manager/Repository/vital:45300 Wed 17 Nov 2021 14:17:09 SAST ]]> https://commons.ufh.ac.za/vital/access/manager/Repository/vital:45292 Wed 17 Nov 2021 10:19:15 SAST ]]> https://commons.ufh.ac.za/vital/access/manager/Repository/vital:56075 Wed 14 Sep 2022 14:24:22 SAST ]]> https://commons.ufh.ac.za/vital/access/manager/Repository/vital:70660 Wed 13 Dec 2023 11:21:06 SAST ]]> https://commons.ufh.ac.za/vital/access/manager/Repository/vital:49970 Wed 12 Jul 2023 09:51:26 SAST ]]> https://commons.ufh.ac.za/vital/access/manager/Repository/vital:42939 Wed 12 Jul 2023 08:28:50 SAST ]]> https://commons.ufh.ac.za/vital/access/manager/Repository/vital:61088 Wed 08 Feb 2023 13:07:25 SAST ]]> https://commons.ufh.ac.za/vital/access/manager/Repository/vital:64749 Wed 07 Jun 2023 11:29:31 SAST ]]> https://commons.ufh.ac.za/vital/access/manager/Repository/vital:43426 Wed 07 Jul 2021 21:22:59 SAST ]]> https://commons.ufh.ac.za/vital/access/manager/Repository/vital:44655 Wed 06 Oct 2021 10:08:53 SAST ]]> https://commons.ufh.ac.za/vital/access/manager/Repository/vital:52756 Wed 06 Jul 2022 12:03:38 SAST ]]> https://commons.ufh.ac.za/vital/access/manager/Repository/vital:52784 Wed 06 Jul 2022 11:04:23 SAST ]]> https://commons.ufh.ac.za/vital/access/manager/Repository/vital:68613 Wed 04 Oct 2023 13:03:52 SAST ]]> https://commons.ufh.ac.za/vital/access/manager/Repository/vital:63948 Wed 03 May 2023 15:03:35 SAST ]]> https://commons.ufh.ac.za/vital/access/manager/Repository/vital:43616 Tue 29 Jun 2021 11:29:29 SAST ]]> https://commons.ufh.ac.za/vital/access/manager/Repository/vital:44570 Tue 28 Sep 2021 14:42:03 SAST ]]> https://commons.ufh.ac.za/vital/access/manager/Repository/vital:68139 Tue 26 Sep 2023 13:09:18 SAST ]]> https://commons.ufh.ac.za/vital/access/manager/Repository/vital:44853 Tue 26 Oct 2021 12:21:10 SAST ]]> https://commons.ufh.ac.za/vital/access/manager/Repository/vital:42791 Tue 25 May 2021 08:48:47 SAST ]]> https://commons.ufh.ac.za/vital/access/manager/Repository/vital:45399 Tue 24 May 2022 15:26:43 SAST ]]> https://commons.ufh.ac.za/vital/access/manager/Repository/vital:69912 Tue 21 Nov 2023 19:54:50 SAST ]]> https://commons.ufh.ac.za/vital/access/manager/Repository/vital:44781 Tue 19 Oct 2021 13:15:53 SAST ]]> https://commons.ufh.ac.za/vital/access/manager/Repository/vital:42798 Tue 18 May 2021 15:55:51 SAST ]]> https://commons.ufh.ac.za/vital/access/manager/Repository/vital:63576 Tue 18 Apr 2023 16:46:40 SAST ]]> https://commons.ufh.ac.za/vital/access/manager/Repository/vital:51077 MPA-CdTe@ZnS > TGA-CdTe > MPA-CdTe QDs. Under the optimum conditions, a limit of detection as low as 8.5 × 10-8 M was obtained using GSH-CdTe@ZnS. The effects of foreign reactive oxygen species and the Fenton reactants and products as possible interferences on the proposed probe were negligible for CdTe@ZnS QDs. Besides, experimental results indicated that CdTe@ZnS QDs were more attractive for the selective recognition of ●OH than CdTe QDs. The mechanistic reaction pathway between the QDs and ●OH is proposed.]]> Tue 17 May 2022 14:45:18 SAST ]]> https://commons.ufh.ac.za/vital/access/manager/Repository/vital:44793 Tue 16 Nov 2021 19:35:25 SAST ]]> https://commons.ufh.ac.za/vital/access/manager/Repository/vital:43198 cysteine > PST > MPA when CdCl2 was used as cadmium precursor. When different cadmium precursors were used for L-cysteine, the particle sizes range from 2.06 – 2.31 nm for Cd(CH3COO)2 and 2.00 – 2.37 nm for Cd(NO3)2 while the intensity increased as the reaction time increased, however, still lower than the CdCl2 materials. The effect of Au ratio showed that the intensity of Au-doped cysteine capped-CdSe increased as the Au ratio decreased. The systematic study of the effect of temperature and growth time in the organic soluble CdSe nanoparticles on the size, optical and structural properties was also investigated. All the as-synthesised particles were blue-shifted in relation to the bulk CdSe. As the temperature increased the particle sizes of the undoped materials range between 2.92 – 2.95 nm at 160 °C and 5.35 – 5.39 nm at 200 °C while for the doped materials the particle size range from 2.53 – 2.61 nm at 160 °C, 3.97 nm at 200 °C and 4.20 – 4.72 nm at 240 °C. The intensity of the doped materials increased as the reaction time increased and then decreased again towards the end of the reaction. After ligand exchange the intensity of the as-synthesized doped and undoped-CdSe NPs was very low compare to the parent organically capped doped and un-doped CdSe. It was discovered that without any further purification, the quality of the materials formed by this method is comparable to that of the best CdSe NPs reported in the literature. This method is safe, inexpensive and reproducible.]]> Tue 15 Jun 2021 16:25:34 SAST ]]> https://commons.ufh.ac.za/vital/access/manager/Repository/vital:43931 Tue 10 Aug 2021 12:03:34 SAST ]]> https://commons.ufh.ac.za/vital/access/manager/Repository/vital:45169 Tue 07 Jun 2022 16:22:52 SAST ]]> https://commons.ufh.ac.za/vital/access/manager/Repository/vital:51854 Tue 07 Jun 2022 15:47:49 SAST ]]> https://commons.ufh.ac.za/vital/access/manager/Repository/vital:56013 Tue 06 Sep 2022 14:34:13 SAST ]]> https://commons.ufh.ac.za/vital/access/manager/Repository/vital:44629 Tue 05 Oct 2021 14:15:43 SAST ]]> https://commons.ufh.ac.za/vital/access/manager/Repository/vital:45562 Tue 04 Apr 2023 05:07:26 SAST ]]> https://commons.ufh.ac.za/vital/access/manager/Repository/vital:44881 Tue 02 Nov 2021 15:47:50 SAST ]]> https://commons.ufh.ac.za/vital/access/manager/Repository/vital:46008 Tue 01 Feb 2022 12:02:14 SAST ]]> https://commons.ufh.ac.za/vital/access/manager/Repository/vital:45054 0.05), with the overall population growth curve being best described as L(t) = 697.15(1-e-0.06(t-6.30)). Males matured at a slightly larger size than females, however, no significant differences were observed (LRT, p > 0.05). The length- and age- at-50% maturity was 330 mm (FL) and 5.73 years for the full population, respectively. Histological analyses showed that Oplegnathus conwayi are asynchronous spawners with a gonochoristic reproductive style. Macroscopic staging and gonadosomatic index results indicated a protracted spawning season for Oplegnathus conwayi, with a peak in spring. A survey was designed and disseminated to collect FEK on the biology and population status of Oplegnathus conwayi and human dimension information on South Africa’s spearfishery. A total of 103 survey responses were received, of which 94 were regarded as specialised (spearfishers who had greater experience, skill and avidity, and maintained spearfishing as an important component of their lifestyle) spearfishers. Based on the responses of the specialist spearfishers, the top four main species caught by spearfishers from this survey were Seriola lalandi (13.9%), Pachymetopon grande (11.7%), Oplegnathus conwayi (11.4%) and Sparodon durbanensis (11%), and the majority of respondents indicated that there had been no changes in abundance, size and catches of these species in the years that they had been spearfishing. Respondents indicated that Oplegnathus conwayi are most commonly targeted in the Eastern Cape and are found at depths of up to 40 m. Respondents also indicated that there may be a seasonal onshore (Summer/Winter) and offshore (Summer/Winter) migration with year-round spawning and a peak in November, December and January. The incorporation of spearfishers into the data collection, both through the collection of specimens and their FEK, was beneficial to this study. Besides providing samples from a broader geographical range than the primary collection area, the collaboration with spearfishers has promoted the inclusion of this group into the management system. The findings of this study also suggest that FEK data can be more reliable if the concept of recreational specialisation is incorporated into data collection. While the FEK suggested that the population was stable, a stock assessment is necessary to fully understand the population status and implement management strategies. Nevertheless, the key life history characteristics (slow growth and late maturation) observed in this study are characteristic of species that is vulnerable to overexploitation, and thus the precautionary approach should be applied. The reproductive information collected in this study has provided information for the implementation of an appropriate size limit regulation for Oplegnathus conwayi. Here, a minimum size limit of 400 mm TL, which corresponds approximately with the length-at-50% maturity of 330 mm FL, would be appropriate to allow fish to mature and spawn, and reduce the likelihood of recruitment overfishing. Reduction in the bag limit from five to two fish per person per day may also be appropriate as a precautionary measure until a stock assessment has been completed. Finally, the incorporation of stakeholder into biological collection and the use of FEK may be a useful approach for other data deficient species and in countries with limited resources for ecological research.]]> Thu 29 Sep 2022 14:29:54 SAST ]]> https://commons.ufh.ac.za/vital/access/manager/Repository/vital:57876 Thu 27 Oct 2022 15:29:19 SAST ]]> https://commons.ufh.ac.za/vital/access/manager/Repository/vital:55400 Thu 25 Aug 2022 15:12:44 SAST ]]> https://commons.ufh.ac.za/vital/access/manager/Repository/vital:53081 Thu 21 Jul 2022 12:31:37 SAST ]]> https://commons.ufh.ac.za/vital/access/manager/Repository/vital:53072 Thu 21 Jul 2022 10:46:30 SAST ]]> https://commons.ufh.ac.za/vital/access/manager/Repository/vital:42921 Thu 20 May 2021 16:09:53 SAST ]]> https://commons.ufh.ac.za/vital/access/manager/Repository/vital:45142 Thu 18 Nov 2021 14:58:30 SAST ]]> https://commons.ufh.ac.za/vital/access/manager/Repository/vital:56477 Thu 15 Sep 2022 10:50:31 SAST ]]> https://commons.ufh.ac.za/vital/access/manager/Repository/vital:28752 Thu 13 May 2021 05:59:30 SAST ]]> https://commons.ufh.ac.za/vital/access/manager/Repository/vital:44671 Thu 07 Oct 2021 22:25:34 SAST ]]> https://commons.ufh.ac.za/vital/access/manager/Repository/vital:71827 Thu 07 Mar 2024 12:11:26 SAST ]]> https://commons.ufh.ac.za/vital/access/manager/Repository/vital:70311 Thu 07 Mar 2024 09:43:57 SAST ]]> https://commons.ufh.ac.za/vital/access/manager/Repository/vital:71618 Thu 07 Mar 2024 08:48:25 SAST ]]> https://commons.ufh.ac.za/vital/access/manager/Repository/vital:63993 Thu 04 May 2023 13:20:31 SAST ]]> https://commons.ufh.ac.za/vital/access/manager/Repository/vital:63979 Thu 04 May 2023 09:29:59 SAST ]]> https://commons.ufh.ac.za/vital/access/manager/Repository/vital:71927 Thu 04 Apr 2024 17:12:57 SAST ]]> https://commons.ufh.ac.za/vital/access/manager/Repository/vital:46022 Thu 03 Feb 2022 13:55:30 SAST ]]> https://commons.ufh.ac.za/vital/access/manager/Repository/vital:62114 Thu 02 Mar 2023 15:25:14 SAST ]]> https://commons.ufh.ac.za/vital/access/manager/Repository/vital:61087 Thu 02 Mar 2023 14:38:12 SAST ]]> https://commons.ufh.ac.za/vital/access/manager/Repository/vital:62073 Thu 02 Mar 2023 09:11:16 SAST ]]> https://commons.ufh.ac.za/vital/access/manager/Repository/vital:66035 Sun 30 Jul 2023 09:28:36 SAST ]]> https://commons.ufh.ac.za/vital/access/manager/Repository/vital:65969 Sun 30 Jul 2023 09:02:33 SAST ]]> https://commons.ufh.ac.za/vital/access/manager/Repository/vital:71624 Sun 25 Feb 2024 13:28:10 SAST ]]> https://commons.ufh.ac.za/vital/access/manager/Repository/vital:71672 Sun 25 Feb 2024 09:37:05 SAST ]]> https://commons.ufh.ac.za/vital/access/manager/Repository/vital:70536 Sun 10 Dec 2023 13:35:15 SAST ]]> https://commons.ufh.ac.za/vital/access/manager/Repository/vital:71628 Sat 17 Feb 2024 12:46:41 SAST ]]> https://commons.ufh.ac.za/vital/access/manager/Repository/vital:71616 Sat 17 Feb 2024 09:31:31 SAST ]]> https://commons.ufh.ac.za/vital/access/manager/Repository/vital:54397 Sat 06 Aug 2022 21:37:41 SAST ]]> https://commons.ufh.ac.za/vital/access/manager/Repository/vital:65236 Mon 26 Jun 2023 22:39:16 SAST ]]> https://commons.ufh.ac.za/vital/access/manager/Repository/vital:57730 Mon 24 Oct 2022 12:05:56 SAST ]]> https://commons.ufh.ac.za/vital/access/manager/Repository/vital:43753 26 %. The degree of harvesting on private land was relatively low, with the majority of trees having been harvested at rates of less than 10 % of the stem below 2 m. Despite this, ringbarking had occurred (4 %). The basal diameters and heights were significantly lower in the protected population than in the harvested one, suggesting that over time elephant impact was the more severe disturbance. Acacia xanthophloea exhibited high resilience to disturbance, with all the elephant damaged trees and harvested individuals surviving. However, the mean bark thickness measured in local markets (6.3±1.4 mm) was significantly lower than that measured in either the harvested (12.4±1.0 mm) or the KNP (10.3±0.8 mm) populations. As harvesters tend to select the largest individuals in a population to maximise their financial returns, this could mean that smaller individuals are being harvested, and/or bark is not being given sufficient time to grow back after harvesting. Acacia xanthophloea outside protected areas thus need to be monitored and the management improved, preferably in conjunction with the resource users. In addition, traditional healers, those selling medicinal plants and other members of the community need to continue to be encouraged to cultivate this fast growing species.]]> Mon 19 Jul 2021 09:22:41 SAST ]]> https://commons.ufh.ac.za/vital/access/manager/Repository/vital:44458 Mon 13 Sep 2021 14:42:36 SAST ]]> https://commons.ufh.ac.za/vital/access/manager/Repository/vital:44469 Mon 13 Nov 2023 20:35:24 SAST ]]> https://commons.ufh.ac.za/vital/access/manager/Repository/vital:52016 Mon 13 Jun 2022 12:17:51 SAST ]]> https://commons.ufh.ac.za/vital/access/manager/Repository/vital:52005 Mon 13 Jun 2022 09:23:01 SAST ]]> https://commons.ufh.ac.za/vital/access/manager/Repository/vital:57226 Mon 10 Oct 2022 15:54:41 SAST ]]> https://commons.ufh.ac.za/vital/access/manager/Repository/vital:50831 Mon 09 May 2022 14:05:07 SAST ]]> https://commons.ufh.ac.za/vital/access/manager/Repository/vital:45075 Mon 08 Nov 2021 09:22:52 SAST ]]> https://commons.ufh.ac.za/vital/access/manager/Repository/vital:58223 Mon 07 Nov 2022 15:26:26 SAST ]]> https://commons.ufh.ac.za/vital/access/manager/Repository/vital:45183 Mon 06 Dec 2021 12:51:56 SAST ]]> https://commons.ufh.ac.za/vital/access/manager/Repository/vital:68208 Mon 02 Oct 2023 08:12:57 SAST ]]> https://commons.ufh.ac.za/vital/access/manager/Repository/vital:44869 Fri 29 Oct 2021 11:21:35 SAST ]]> https://commons.ufh.ac.za/vital/access/manager/Repository/vital:65967 Fri 28 Jul 2023 08:43:38 SAST ]]> https://commons.ufh.ac.za/vital/access/manager/Repository/vital:45688 Fri 28 Jan 2022 11:06:50 SAST ]]> https://commons.ufh.ac.za/vital/access/manager/Repository/vital:51254 Fri 20 May 2022 23:25:33 SAST ]]> https://commons.ufh.ac.za/vital/access/manager/Repository/vital:55101 Fri 19 Aug 2022 09:15:47 SAST ]]> https://commons.ufh.ac.za/vital/access/manager/Repository/vital:45150 Fri 12 Nov 2021 10:26:44 SAST ]]> https://commons.ufh.ac.za/vital/access/manager/Repository/vital:45655 Fri 11 Mar 2022 14:44:30 SAST ]]> https://commons.ufh.ac.za/vital/access/manager/Repository/vital:66485 Fri 11 Aug 2023 12:10:55 SAST ]]> https://commons.ufh.ac.za/vital/access/manager/Repository/vital:49694 Fri 08 Apr 2022 12:42:25 SAST ]]> https://commons.ufh.ac.za/vital/access/manager/Repository/vital:51748 Fri 03 Jun 2022 10:39:54 SAST ]]>