What can be learned from fishers? An integrated survey of fishers’ local ecological knowledge and bluefish (Pomatomus saltatrix) biology on the Brazilian coast

Hydrobiologia ◽  
2009 ◽  
Vol 637 (1) ◽  
pp. 3-18 ◽  
Author(s):  
Renato Azevedo Matias Silvano ◽  
Alpina Begossi
Keyword(s):  
Local Ecological Knowledge ◽  
Brazilian Coast ◽  
Ecological Knowledge ◽  
Pomatomus Saltatrix

scholarly journals Fishermen's local ecological knowledge on Southeastern Brazilian coastal fishes: contributions to research, conservation, and management

2012 ◽  
Vol 10 (1) ◽  
pp. 133-147 ◽  
Author(s):  
Renato A. M. Silvano ◽  
Alpina Begossi
Keyword(s):  
Fisheries Management ◽  
Trophic Interactions ◽  
Feeding Habits ◽  
Local Ecological Knowledge ◽  
Scientific Data ◽  
Brazilian Coast ◽  
Ecological Knowledge ◽  
Rock Formations ◽  
Management Measures ◽  
And Migration

We analyzed fishermen's local ecological knowledge (LEK) about the feeding habits, trophic interactions, habitats, fishing grounds, migration, and reproduction of nine coastal fishes in Búzios Island, southeastern Brazilian coast. We interviewed 39 fishermen using standardized questionnaires. Fishermen's LEK on habitat use and trophic interactions for the studied fishes agreed with the scientific literature, allowing the organization of reef and pelagic food webs. The interviewed fishermen mentioned that submerged rock formations would be important habitats for some large commercial fishes, such as Seriola spp., Caranx latus and Epinephelus marginatus. In some instances there was no scientific data to be compared with fishermen's LEK, and thus this kind of knowledge would be the only available source of information, such as for reproduction and migration of most of the studied fishes. We suggest herein ways to apply fishermen's LEK to develop and improve fisheries management measures, such as zoning of marine space, marine protected areas, and closed fishing seasons. Fishermen's LEK may be an important and feasible support to fisheries management and co-management.

scholarly journals Recreational fishers consistently inform about different meridionalization dynamics of two Mediterranean subregions

2019 ◽  
Author(s):  
Valerio Sbragaglia ◽  
Jacopo Cerri ◽  
Luca Bolognini ◽  
Jakov Dulčić ◽  
Fabio Grati ◽  
...  
Keyword(s):  
Climate Change ◽  
Fish Species ◽  
Online Survey ◽  
Local Ecological Knowledge ◽  
Ecological Knowledge ◽  
Pomatomus Saltatrix ◽  
Fishing Activity ◽  
Biological Communities ◽  
Balistes Capriscus ◽  
Geographical Scale

Marine recreational fishers accumulate a vast amount of Local Ecological Knowledge (LEK) during their fishing activity that can be of paramount importance for monitoring how climate change affects the structure of biological communities. Here, we accessed the LEK of recreational anglers and recreational spearfishers to investigate the increase in the abundance of five northward expanding indigenous thermophilic fish species in two subregions of the Mediterranean Sea: the Adriatic/Ionian Seas and the Tyrrhenian/Ligurian Seas. We used an online survey administered through Twitter and Facebook between 2017 and 2018 to both Italian and Croatian recreational fishers. A total of 794 respondents completed the questionnaire (386 from the Adriatic/Ionian subregion and 408 from the Tyrrhenian/Ligurian one). Overall, the species perceived as most increasing in abundance were Pomatomus saltatrix (71% of replies) followed by Sphyraena viridensis (58%). The rest of species (Coryphaena hippurus, Balistes capriscus and Sparisoma cretense) ranged between 17% and 25%. We showed that recreational fishers have a stable system of beliefs about meridionalization, which is perceived homogeneously between recreational anglers and spearfishers. Moreover, our results indicate that latitude is negatively correlated with meridionalization in the Adriatic/Ionian, but not in the Thyrrenian/Ligurian Seas, suggesting that meridionalization of the Adriatic/Ionian Seas could be a process that is temporally lagged with respect to the Tyrrhenian/Ligurian Seas. Our study demonstrate that LEK of specific target groups such as recreational fishers can be easily accessed on large geographical scale and it can be useful to identify those fish species who are regarded as indicators of climate change.

scholarly journals Telling the same story: Fishers and landing data reveal changes in fisheries on the Southeastern Brazilian Coast

PLoS ONE ◽  
2021 ◽  
Vol 16 (6) ◽  
pp. e0252391
Author(s):  
Carine O. Fogliarini ◽  
Carlos E. L. Ferreira ◽  
Jéssica Bornholdt ◽  
Moysés. C. Barbosa ◽  
Vinicius J. Giglio ◽  
...  
Keyword(s):  
Trophic Level ◽  
Local Ecological Knowledge ◽  
Marine Ecosystems ◽  
Temporal Changes ◽  
Brazilian Coast ◽  
Ecological Knowledge ◽  
Sources Of Information ◽  
Target Species ◽  
Multiple Sources ◽  
In The Beginning

An understanding of the effects of fishing on marine ecosystems relies on information about the conserved state of these environments. Non-conventional approaches such as the use of historical data and local ecological knowledge can provide information and help adjust our references of changes in the environment. Also, the combination of different types of data can indicate a fisheries trend that would be undetectable when evaluated separately. Here we investigated changes in fisher’s perceptions regarding overexploited and new target species in artisanal fisheries in a secular fishing village of the subtropical, southeastern Brazilian coast. We identified temporal changes in landings and in the mean trophic level (MTL) of high trophic level species (≥ 3.5 and >4) over 16 years. Fishers’ knowledge revealed shifts in perception associated with years of fishing practice. More experienced fishers recognized a greater number of overexploited and new target species than fishers in the beginning of their careers. Landing data has revealed declining trends of 72% for five mesopredators species. Due to the overfishing of mesopredators, there was a shift in target species, towards fish that were previously discarded. Temporal changes in landings and in the MTL metric are concordant with previous reports on the overexploitation of species caught by local fishers. Our work reveals that multiple sources of information can be combined to establish historical baselines and improve the detection of change in marine ecosystems.

The missing wetlands: using local ecological knowledge to find cryptic ecosystems

2011 ◽  
Vol 21 (1) ◽  
pp. 51-63 ◽  
Author(s):  
Amber L. Pitt ◽  
Robert F. Baldwin ◽  
Donald J. Lipscomb ◽  
Bryan L. Brown ◽  
Joanna E. Hawley ◽  
...  
Keyword(s):  
Local Ecological Knowledge ◽  
Ecological Knowledge

Building ecological networks with local ecological knowledge in hyper‐diverse and logistically challenging ecosystems

2021 ◽  
Author(s):  
Lisa Ong ◽  
Ahimsa Campos‐Arceiz ◽  
Vivienne P. W. Loke ◽  
Param bin Pura ◽  
Charang Muhamad Tauhid bin Tunil ◽  
...  
Keyword(s):  
Local Ecological Knowledge ◽  
Ecological Networks ◽  
Ecological Knowledge

scholarly journals An Environmental Education and Communication Project on Migratory Fishes and Fishing Communities

2021 ◽  
Vol 11 (7) ◽  
pp. 337
Author(s):  
Sara Costa Carvalho ◽  
Heitor Oliveira Braga ◽  
Sofia de Santa-Maria ◽  
Beatriz Fonte ◽  
Mário Jorge Pereira ◽  
...  
Keyword(s):  
Social Media ◽  
Environmental Education ◽  
Formal Education ◽  
Local Governance ◽  
Local Ecological Knowledge ◽  
Ecological Knowledge ◽  
Communication Tool ◽  
Migratory Species ◽  
Ocean Literacy ◽  
New Perspective

This study aims at evaluating the environmental education (EE) and communication intervention for the valorization of migratory fish resources in an estuary of northern Portugal. The EE component intervention was implemented among Middle School pupils of that region. Students’ knowledge was quantitatively evaluated with an experimental approach of pre-testing and post-testing, on the ocean and estuarine literacy (OEL) and biology of migratory species, such as sea lamprey. This study also analyzes the communication component developed via social media. Results of the EE component show an evident increment of OEL (p < 0.05). It is also highlighted that students had previous knowledge on issues that are not covered in the curriculum. Social media has shown to be an effective communication tool mostly among the scientific community (e.g., Ethnobiology). The research has various implications to OEL since it brings a new perspective towards the integration of ocean literacy in formal education; as well as the valorization of Students’ local ecological knowledge and of inter-generational dynamics. This study contributed to promoting local biodiversity, OEL, and participatory local governance of these ecosystems.

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