Fishers’ knowledge indicates short-term temporal changes in the amount and composition of catches in the southwestern Atlantic

Lima, Evelyn Gonçalves; Begossi, Alpina; Hallwass, Gustavo; Silvano, Renato Azevedo Matias

doi:10.1016/j.marpol.2016.05.008

Cited by 23 publications

(21 citation statements)

References 63 publications

(163 reference statements)

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“…The results complement previous biological studies that indicate overexploitation of the species in the Brazilian Northeast (Lessa et al 2004; Klippel et al 2005; Frédou et al 2009a and show a tendency of decline in the captured biomass. Although there is no fishing effort data, it is likely that the effort has an increasing tendency, as suggested in other regions of the country (Lima et al 2016) and in the world (Anticamara et al 2011). In addition, Nóbrega et al (2009) noted the decline in abundance in the northeastern region, and the authors suggest that increasing effort directed at the species may be the factor responsible for this.…”

Section: Discussionmentioning

confidence: 95%

Shifting baseline syndrome highlighted by anecdotal accounts from snapper (Ocyurus chrysurus) fishery

Zapelini

Silva²,

Schiavetti³

2020

Ethnobio Conserv

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The fishes of the Lutjanidae family are widely distributed throughout the Atlantic, Indian and Pacific Oceans and have relevant commercial importance. Yellowtail snapper (Ocyurus chrysurus) is a targeted species in the smallscale fishery of the northeastern coast of Brazil, notably for handline fishing. We used the local ecological knowledge (LEK) of three generations of fishers from Ilhéus (southern Bahia State, Brazil) to evaluate the perception of weight, best day of capture and relative abundance of the species. More experienced fishers captured the largest specimens, had larger catches and were more likely to indicate a decrease in species abundance. On the other hand, younger fishers had smaller catches and were more likely to indicate that the species abundance is stable or increasing. The results suggest the occurrence of shifting baseline syndrome among fishers and emphasize the importance of including information from fishers in the construction of management measures. Fishers can play a key role in developing viable proposals that are aimed at the management of fishing of species with spawning aggregation, such as yellowtail snapper.

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Section: Discussionmentioning

confidence: 95%

Shifting baseline syndrome highlighted by anecdotal accounts from snapper (Ocyurus chrysurus) fishery

Zapelini

Silva²,

Schiavetti³

2020

Ethnobio Conserv

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“…Johaness et al () showed that fishers can provide critical information on historical changes in local marine stocks. In Brazil, Bender et al () showed that local fisher's knowledge can recognise long‐term declines of reef fish species in eastern Brazil while Lima, Begossi, Hallwass, and Silvano () reported short‐term temporal changes in the amount and composition of fishing resources exploited by small‐scale coastal fisheries on the southeastern Brazilian coast. Thus, this study is further evidence of the efficacy of local ecological knowledge in recognising temporal changes in local fishing resources.…”

Section: Discussionmentioning

confidence: 99%

Long‐term changes in fishery resources of an estuary in southwestern Atlantic according to local ecological knowledge

Thykjaer

Rodrigues

Haimovici

et al. 2019

Fisheries Management Eco

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Long‐term changes in the abundance of fisheries resources from the Patos Lagoon estuary and adjacent coastal waters in southern Brazil have been observed. Despite this understanding, it is well known that the perception of pristine state of the environment is susceptible to inter‐generational changes, commonly known as shifting baseline syndrome (SBS). An useful approach in the reconstruction of pristine scenarios and in lack of data, as often occurs in small‐scale fisheries, is the local ecological knowledge (LEK). Temporal changes in the perception of 81 fishers with 1–63 years of fishing about the resources status were analysed. More experienced fishers reported larger catches, heavier individuals and perceived a greater number of species as "scarce" nowadays and "common" at the beginning of their careers proving the existence of a SBS among them. Over time, the number of fishing sites with very high catches decreased and fishing sites shifted from the lower towards the upper estuary. The perception of the fishers corroborated the real decreasing scenario in estuarine fisheries resources shared with industrial fishing in coastal waters. The results reinforce the utility of LEK for reconstruction of biological scenarios when no empirically obtained data are available.

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“…This knowledge has a close relationship with experience (BENJAMIN, 1994), showing to be fundamental to the social reproduction of these individuals and their groups. It is rich in detail, being based on a series of observations of the environment and of the species fished; over time, they allow understanding the way of life and the characteristics of fishing species (BEGOSSI; HANAZAKI; RAMOS, 2004;NUNES;HARTZ;SILVANO, 2011;BEGOSSI, 2012;PERUCCHI;SILVANO et al, 2014;PERUCCHI;COELHO-DE-SOUZA, 2015;LIMA et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

“…As regards the management process, problems such as the inexistence of statistic series of temporal data, together with misconceived management, result in great difficulty in elaborating adequate strategies that regulate the artisanal or industrial fishing activity. In this context, the set of information available about the local fishing dynamic, which should include the LEK of fisherfolk (JOHANNES, 1998;LIMA et al, 2016), could be converted into a powerful source of data to be inserted into management actions that, by including the fishing communities, tend to foster dialog and cooperation between fisherfolk and authorities (SILVANO; BEGOSSI, 2012).…”

Section: Introductionmentioning

confidence: 99%

Artisanal fisherfolk’s Local Ecological Knowledge on catfish and fishing legislations: a necessary dialog

et al. 2020

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The presence of catfish of the Ariidae family in the list of endangered species of Rio Grande do Sul (RS), as from 2014, led to forbidding fishing two species of this family. Thus, artisanal fisherfolk lost a significant part of their income, causing conflicts between them and the fishing authorities in RS. This work aims mainly to understand the Local Ecological Knowledge (LEK) of the artisanal fisherfolk of the North Coast of RS regarding the ecology and taxonomy of catfish of the Ariidae family, seeking to relate it to the establishment of the fishing regulations in force in the State. 33 semi-structured interviews were made with artisanal fisherfolk. The interviewees perceive differences among the region ethnospecies; hardly ever are they consulted during the fishing regulations establishment process. Considering the aforementioned aspects, the artisanal fisherfolk LEK on catfish can be an important tool in the participatory management of catfish fishing.

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Fishers’ knowledge indicates short-term temporal changes in the amount and composition of catches in the southwestern Atlantic

Cited by 23 publications

References 63 publications

Shifting baseline syndrome highlighted by anecdotal accounts from snapper (Ocyurus chrysurus) fishery

Shifting baseline syndrome highlighted by anecdotal accounts from snapper (Ocyurus chrysurus) fishery

Long‐term changes in fishery resources of an estuary in southwestern Atlantic according to local ecological knowledge

Artisanal fisherfolk’s Local Ecological Knowledge on catfish and fishing legislations: a necessary dialog

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