Assessment of catches in shore angling competitions from the border region of the Eastern Cape, South Africa

Pradervand, P.; Govender, Rhona

doi:10.1080/15627020.2003.11657190

Cited by 9 publications

(12 citation statements)

References 5 publications

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“…In contrast, recreational anglers are probably more interested in sea breams and bass that have higher gastronomic value and are more abundant in the areas often chosen for this type of fishery, such as jetties or cliffs (where the rocky topography provides refuge for large individuals of European seabass and sea breams). In fact, Pradervand and Govender (2003) found the same dichotomy in catches between recreational and sport anglers, with the latter group being generally more selective.…”

Section: Resultsmentioning

confidence: 66%

Catches of the Sport Fishing Competitions Along the Algarve Coast (Portugal): Species, Sizes, Catch Rates, and Trends

Guerreiro¹,

Veiga²,

Erzini³

2011

Acta Icth et Piscat

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Guerreiro A.I., Veiga P., Erzini K. 2011. Catches of the sport fishing competitions along the Algarve Coast (Portugal): species, sizes, catch rates, and trends. Acta Ichthyol. Piscat. 41 (3): 165-169.Background. Stocks of many marine fishes are in decline and a number of studies suggest that for some species the impact of recreational angling may be important. To date, only recreational (leisure) fishing surveys have been conducted in Portugal, with no studies on beach angling competitions, dynamically increasing in number over the past 10 to 20 years. In view of the above, we decided to evaluate the impact of such events on the Algarve coast (southern Portugal) in terms of the abundance, diversity, and respective weight of fish species caught and outline some conservation measures and recommendations for the management of the targeted species. Materials and methods. Participants of 22 angling competitions taking place between February and June 2007 were surveyed. In each competition a random sample of anglers was interviewed, and the specimens caught by each participant were identified, weighed, and measured.Results. Thirteen taxa belonging to eight families were identified, and the most common were: garfish, Belone belone (Linnaeus, 1761); mullets, Mugilidae (not identified); and mackerels, Scomber spp. A total of 563 specimens were sampled, totalling 75.4 kg of weight, with the average catch per angler weighing 0.5 ± 0.05 SE (n = 153) kg. Differences were also observed between the length at first maturity (L 50 ) of the specimens caught and their respective Minimum Landing Size (MLS) and Allowed Minimum Size (AMS), most particularly in the case of the European seabass, Dicentrarchus labrax (L.), with almost all individuals caught measuring below the speciesspecific L 50 . Analysis of time series of competition results (1996)(1997)(1998)(1999)(2000)(2001)(2002)(2003)(2004)(2005)(2006)(2007)(2008)(2009) showed no evidence of a decrease in catches or in mean weight. Conclusion.Based on the results we propose that the AMS for beach angling competitions should be increased to the MLS in order to prevent the capture of juvenile fishes, especially the sea bass. Future studies should address the size selectivity of the hooks used in beach competitions, with a view to the implementation of a minimum hook size for competitions.

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Section: Resultsmentioning

confidence: 66%

Catches of the Sport Fishing Competitions Along the Algarve Coast (Portugal): Species, Sizes, Catch Rates, and Trends

Guerreiro¹,

Veiga²,

Erzini³

2011

Acta Icth et Piscat

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“…The dominance by a few species in the catch of a multispecies linefishery is likely to reflect the abundance and catchability of species and is evident in all sectors of the South African linefishery , Mann et al 2003, Pradervand et al 2007. Although the number of species recorded was greater than in the Border (Great Fish River-Kei River) competitive shore-fishery (34 species; Pradervand and Govender 2003), it was less than that recorded in either the KZN (117 species; Pradervand et al 2007) or the former Transkei (71 species; Pradervand 2004) regions. In part, this reflects the increased ichthyofaunal diversity displayed with decreasing latitude along the east coast of South Africa (Turpie et al 2000).…”

Section: Catch Compositionmentioning

confidence: 99%

“…Similar to other components of the linefishery, which include the subsistence as well as boat-based commercial sectors, excessive shore-fishing effort along the Eastern Cape has resulted not only in declining catches (Bennett 1991, Griffiths 1997, Brouwer and Buxton 2002, Pradervand and Govender 2003 but also changes in the species composition of catches (Bennett et al 1994, Attwood and Farquhar 1999. Stock assessments indicate that many important linefish species are severely overexploited (Griffiths 1997, Hutchings 2000, Mann 2000 and that continued fishing pressure threatens endemic linefish populations.…”

mentioning

confidence: 99%

“…Although the competitive sector comprises <3% of the total number of participants in the fishery (Pradervand and Govender 2003), the high frequency of competitions provide a useful long-term catch-and-effort dataset that can be used to assess the status of the fishery. Competition catch records have been used in several previous studies to monitor long-term trends in various regions of the South African marine shore-fishery.…”

mentioning

confidence: 99%

“…Competition catch records have been used in several previous studies to monitor long-term trends in various regions of the South African marine shore-fishery. These have included assessments in KwaZulu-Natal (van der Elst andDe Freitas 1988, Padervand et al 2007), the Eastern Cape (Coetzee and Baird 1981, Coetzee et al 1989, Pradervand and Govender 2003, Pradervand 2004) and the Southern and Western Cape (Bennett 1991, Bennett et al 1994, Attwood and Bennett 1995.…”

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confidence: 99%

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Long-term catch and effort trends in Eastern Cape Angling Week competitions

Dicken

Smale

Booth

2012

African Journal of Marine Science

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Catches from AnglingWeek competitions between 1999 and 2010 were analysed to examine changes in catch and effort. Over the course of the study period there was a marked drop in the number of competing anglers and a significant reduction in the total number of fish caught (p = 0.026). There was also a significant (p < 0.01) shift in the areas fished by anglers, from predominantly sandy to rocky reef areas. A total of 5 786 fish, representing 46 different species and 24 families, were positively identified from catches recorded on 2 710 catch cards. Due to the inability of anglers to correctly distinguish between Mustelus mustelus and Triakis megalopterus and between Carcharhinus brachyurus and Carcharhinus obscurus, these species were recorded together into two taxa. The most commonly caught species were Argyrosomus japonicus (20.3%), Mustelus mustelus/Triakis megalopterus (13.0%) and Carcharias taurus (11.8%). Mean CPUE for all fish caught, teleosts and elasmobranchs, as well as the top four teleost and elasmobranch species, increased over the course of the study period, with the exception of Pachymetopon grande and C. brachyurus/C. obscurus, which decreased. Only C. brachyurus/C. obscurus exhibited a significant (p = 0.012) decreasing trend in mean annual weight. Many of the species (43.6%) caught during Angling Week competitions were smaller than published estimates of weight-at-50% maturity. These results, from a unique long-term dataset, provide important information towards the sustainable management of the Eastern Cape shore-fishery.

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Traditional management strategies fail to arrest a decline in the catch‐per‐unit‐effort of an iconic marine recreational fishery species with evidence of hyperstability

Maggs

Mann

Potts

et al. 2015

Fisheries Management Eco

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The paucity of long‐term marine recreational fisheries data limits understanding of the effects of exploitation on target species. Long‐term catch‐per‐unit‐effort (CPUE) datasets for a large piscivorous carangid species, Lichia amia (L.), from 3 South African recreational fishery sectors were examined. Although standardised CPUE for all sectors showed an overall long‐term decline, there was considerable variability in trends between the recreational sectors and between datasets. Contrasting trends between competitive shore angling and general shore angling datasets were ascribed to hyperstability in competition CPUE data, which was most influenced by rapidly improving technology, techniques and communication networks amongst anglers. Month and locality were significant factors explaining the probability of catching L. amia. This suggests that the predictable aggregation behaviour of this species could further compound the observed CPUE hyperstability. Although the CPUE responded positively for 6 years after implementation of the first minimum size and bag limits, and for 1 year after the decommercialisation of the species, these regulations and their amendments failed to arrest a long‐term decline in CPUE despite ample evidence for hyperstability. Additional regulations, including a spatio‐temporal closure and the implementation of a voluntary regulation framework of catch and release, are recommended for this species.

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Assessment of catches in shore angling competitions from the border region of the Eastern Cape, South Africa

Cited by 9 publications

References 5 publications

Catches of the Sport Fishing Competitions Along the Algarve Coast (Portugal): Species, Sizes, Catch Rates, and Trends

Catches of the Sport Fishing Competitions Along the Algarve Coast (Portugal): Species, Sizes, Catch Rates, and Trends

Long-term catch and effort trends in Eastern Cape Angling Week competitions

Traditional management strategies fail to arrest a decline in the catch‐per‐unit‐effort of an iconic marine recreational fishery species with evidence of hyperstability

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