https://vital.seals.ac.za/vital/access/manager/Index en-us 5 https://vital.seals.ac.za/vital/access/manager/Repository/vital:30057 Wed 26 Oct 2022 16:07:52 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:68307 Wed 24 Apr 2024 16:19:47 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:68814 Wed 24 Apr 2024 13:34:08 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:29198 Wed 15 Mar 2023 15:47:55 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:36716 Wed 13 Mar 2024 11:08:45 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:35343 Wed 13 Mar 2024 10:26:28 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:36876 Wed 12 May 2021 23:31:13 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:34042 Wed 12 May 2021 22:44:00 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:34078 Wed 12 May 2021 22:38:01 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:36888 Wed 12 May 2021 22:34:15 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:36949 Wed 12 May 2021 22:27:54 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:36882 90% survival compared to the control at Mistley (93 versus 83%), Bloemendal (96 versus 62%) and Enon (burn) (96 versus 89%). At Garfield, Vulindlela, and Baynesfield, survival in both the treated and untreated treatments was below 90%, whereas both the treated and untreated treatments were above 90% at Rustig, Greenhill, Enon (slash), Umvoti, Dargle and Umvoti North. This data indicates that where soil-borne pests are present, the application of an insecticide is beneficial. Due to the costs associated with insecticide application, the challenge will be to determine which are high-risk sites that require treatment with an insecticide. Results from these trials indicate that on sites where soil-borne pests are present (and active), the application of insecticides is beneficial. However, even if present, the level of impact is less obvious, and possibly influenced by life cycle stage, site management and climate. The testing of alternative and less highly hazardous insecticides indicated the potential future use of insecticides in terms of limited seedling phytotoxicity (some of the products tested). To understand more fully the extent of their efficacy, these products would need to be re-tested again on sites where soil-borne pests are active. Optimum establishment practices, together with the planting of quality seedlings and application of an approved insecticide, will all contribute to improved survival and growth. Perhaps the biggest challenge will be the determination of soil pest activity, such that the application of pesticides can be limited to those sites where control is necessary..]]> Wed 12 May 2021 20:33:07 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:29156 Wed 12 May 2021 20:12:17 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:39638 Wed 12 May 2021 19:42:02 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:37040 Wed 12 May 2021 18:57:33 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:37046 Wed 12 May 2021 18:51:50 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:30746 Wed 12 May 2021 18:32:59 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:39675 Wed 12 May 2021 18:32:16 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:37669 Wed 12 May 2021 18:29:57 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:29088 Wed 12 May 2021 18:23:57 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:36686 Wed 12 May 2021 18:17:44 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:36577 Wed 12 May 2021 18:12:48 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:36639 Wed 12 May 2021 18:12:43 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:36871 Wed 12 May 2021 17:56:22 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:34218 Wed 12 May 2021 17:50:35 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:34948 Wed 12 May 2021 17:42:54 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:30744 Wed 12 May 2021 17:40:50 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:36900 Wed 12 May 2021 17:31:33 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:34270 Wed 12 May 2021 16:50:37 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:38555 Wed 12 May 2021 16:47:59 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:36960 Wed 12 May 2021 16:47:00 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:29922 Wed 12 May 2021 16:32:38 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:28679 Wed 12 May 2021 16:15:53 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:36283 Wed 12 May 2021 16:15:22 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:36787 Wed 12 May 2021 15:58:27 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:30758 Wed 12 May 2021 15:50:12 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:40741 Wed 12 May 2021 14:54:13 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:40868 Wed 12 May 2021 14:32:27 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:40780 Wed 12 May 2021 14:30:53 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:40737 Wed 12 May 2021 14:19:58 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:40695 Wed 12 May 2021 14:18:13 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:40530 Wed 12 May 2021 13:58:45 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:40773 Wed 12 May 2021 13:47:20 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:55691 Wed 08 May 2024 19:44:04 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:40036 Tue 14 May 2024 06:17:55 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:36571 Tue 14 May 2024 04:41:44 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:45522 Tue 07 May 2024 15:44:29 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:39384 Tue 07 May 2024 09:16:49 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:30597 100 km) behaviour, respectively. Further behavioural diversity was observed with ‘resident’, ‘roaming’ and ‘embayment’ contingents identified based on varying levels of affinity to certain habitats. The presence of both resident and migratory individuals within the northernmost study during June and July, combined with available biological information, suggested that area-specific spawning may take place. While PAT, CPUE and CT largely aligned in determining area specific high-area use, results from network analyses and mixed effects models conducted on the PAT data supported the spawning hypothesis, with anomalous behaviour around specific receivers during the spawning season. All fish, regardless of behavioural contingent, displayed similar movement behaviour during the spawning season and this was driven by factors generally associated with reproduction, such as lunar illumination. Interestingly, these drivers were different from those that determined the area specific use of individuals outside of the spawning season. The environmental drivers of longshore migration into the northern study site were identified as a decline in water temperature and shorter day lengths. The results of this study highlight the importance of using a multi-method approach in determining migratory movement behaviour, area specific area use, and stock structure of key fisheries species. The identification of different behavioural contingents highlights the importance of acknowledging individual variation in movement and habitat-use patterns. This is particularly relevant as future climate change and spatiotemporal variation in fishing effort may artificially skew natural selection processes to favour certain behavioural groups. This study also highlighted the importance of scientists forming relationships with resource-users, such as recreational angling lodges in areas where limited research has been conducted. This is particularly relevant within the West African context where little is known about many of the fish species that are being increasingly targeted by tourism angling ventures.]]> Thu 29 Sep 2022 14:25:47 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:31213 Thu 29 Sep 2022 14:24:30 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:29924 0.05), development or the active metabolic (P > 0.05) or metabolic scope (P > 0.05) of fish in the three treatments throughout the study. However, the standard metabolic rate was significantly higher in the year 2068 treatment but only at the flexion/post-flexion stage which could be attributed to differences in developmental rates (including the development of the gills) between the 2068 and the other two treatments. Overall, the metabolic scope was narrowest in the 2090 treatment, but varied according to life stage. Although not significantly different, metabolic scope in the 2090 treatment was noticeably lower at the flexion stage compared to the other two treatments, and the development appeared slower, suggesting that this could be the stage most prone to OA. The study concluded that, in isolation, OA levels predicted to occur between 2050 and 2090 will not negatively affect size-at-hatch, growth, development, and metabolic responses of larval A. japonicus up to 22 DAH (flexion/post-flexion stage). Taken together with the previous studies of the same species, the tipping point of tolerance (where negative impacts will begin) in larvae of the species appears to be between the years 2090 and 2100.]]> Thu 29 Sep 2022 12:56:05 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:31252 Thu 20 Jul 2023 11:52:05 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:38516 Thu 15 Jul 2021 21:51:36 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:31194 Thu 13 May 2021 08:55:46 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:30558 Thu 13 May 2021 06:10:31 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:31148 Thu 13 May 2021 06:10:06 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:30743 Thu 13 May 2021 06:08:53 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:29237 Thu 13 May 2021 06:03:59 SAST ]]> 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https://vital.seals.ac.za/vital/access/manager/Repository/vital:36615 Thu 13 May 2021 03:08:03 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:28686 Thu 13 May 2021 03:01:37 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:30550 Thu 13 May 2021 02:55:06 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:36646 Thu 13 May 2021 02:52:08 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:36693 Thu 13 May 2021 02:43:31 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:35500 Thu 13 May 2021 01:53:53 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:31150 Thu 13 May 2021 01:49:42 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:29662 Thu 13 May 2021 01:34:10 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:35333 Thu 13 May 2021 01:17:11 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:35460 Thu 13 May 2021 01:13:42 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:31346 Thu 13 May 2021 00:57:36 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:39715 Thu 13 May 2021 00:54:32 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:36600 Thu 13 May 2021 00:41:07 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:39711 Thu 13 May 2021 00:35:43 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:36241 Thu 13 May 2021 00:29:01 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:36177 Thu 13 May 2021 00:26:20 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:37144 Thu 13 May 2021 00:18:33 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:34257 Thu 13 May 2021 00:02:25 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:38333 Thu 13 May 2021 00:01:58 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:37793 Thu 07 Mar 2024 14:33:44 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:29128 Thu 06 Jul 2023 12:54:36 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:44526 Mon 20 Sep 2021 14:17:54 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:32509 Mon 15 Aug 2022 16:12:51 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:32472 Mon 15 Aug 2022 16:12:14 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:38430 Mon 13 May 2024 15:15:08 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:42856 Mon 08 Aug 2022 05:43:06 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:35578 Mon 06 May 2024 15:35:36 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:38955 Fri 26 Apr 2024 12:51:06 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:71508 Fri 26 Apr 2024 11:01:35 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:72190 Fri 26 Apr 2024 11:01:03 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:42821 Fri 10 May 2024 07:45:00 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:43163 Fri 10 May 2024 07:44:35 SAST ]]> https://vital.seals.ac.za/vital/access/manager/Repository/vital:49691 Fri 08 Apr 2022 12:34:07 SAST ]]>