Perceptions Of Fishers Research Articles

Overlapping Areas Used for Artisanal Fishing and Populations of Franciscana Dolphin (Pontoporia blainvillei) in the Southwest Atlantic Ocean

This study identified the overlap between artisanal fishing areas and the Franciscana dolphin (Pontoporia blainvillei) in the Southwest Atlantic Ocean (SWAO), Brazil, to identify areas where the species was incidentally captured from the perception of artisanal fishers. Using a semistructured questionnaire, ethnographic interviews (n = 330) were carried out from 2012 to 2018 with fishers from ten communities in southeastern (ES and RJ) and southern (PR) Brazil. After the interviews, the fishers presented their fishing routes, locations and areas of incidental capture and occurrence of the Franciscana dolphin. Ninety-five fishers (29%) identified the species: 23 in northern ES, 1 in southern ES, 20 in northern RJ, and 51 in the PR. Among the 235 fishers who could not identify the species, approximately half worked in the distribution gaps. The areas of occurrence noted by the fishers coincided with those described in the “National Action Plan for the Conservation of the Toninha,” an official document from the Brazilian Government and scientific literature. The results indicate that the information provided by fishers is useful for understanding the distribution of the Franciscana dolphin and can be used in the development of management strategies to mitigate the incidental capture of the species.

Implications of fisher perceptions on coral restoration in Tondol, northwestern Philippines

Increasing coral restoration efforts globally have been aimed at improving reef status and the ecosystem functions and services they provide, including enhancing reef fish communities and fisheries production on nearby reefs. However, empirical evidence showing the influence of coral restoration on fish stocks is limited. In Barangay Tondol, a small-scale fishing village in the northwestern Philippines, fisher knowledge and perception studies were completed through individual interviews to provide insights into the perceived impacts of local restoration efforts on coral reef conditions and fishery outputs. The influence of fishers' social demographics and fishery information to their held perceptions were also explored. Fishers’ responses showed a perceived decline in fish stocks over the last 5–10 years mainly attributed to overharvesting, and a slight improvement in coral reef condition due to a reduction in destructive fishing. Out of 53 fisher respondents, 72% were aware of coral restoration efforts in their area and held positive perceptions that theoretically, conducting coral restoration can improve their fish stocks and local reef conditions through the provision of habitat functions. Perceived actual effectiveness of the local efforts was also positive, but with a lower number of responses. Multiple hierarchical regression tests showed that, among social demographics, fishery information, and perceptions on fish stocks, perceived improvement in coral condition was associated with stronger support for coral restoration activities. These findings indicate that fishers perceive positive effects of coral restoration to local coral status and fisheries, and highlight the need for restoration practitioners to engage early on with key stakeholders to assess local fisheries status and local priorities to inform restoration strategies.

Fisher perceptions of catch and trade of sharks and rays in Angolan small‐scale fisheries

AbstractSmall‐scale fisheries ensure food security and employment in Angolan coastal communities. These dynamic, widespread fisheries remain mostly unregulated, with limited data available despite their likely significant impact on marine megafauna. We used an interview‐based survey to investigate local fisher interactions with elasmobranchs (sharks and rays) and gather information on utilization, trade and perceptions. All fishers (n = 83) landed elasmobranchs. Most fishers considered sharks as bycatch (74.7%, n = 62), while 100% targeted rays (Order Myliobatiformes), and 62.8% (n = 52) targeted guitarfishes (Order Rhinopristiformes). Over 80% of fishers reported declining catches and sizes of elasmobranchs over the last 30 years, raising concerns about the sustainability of these fisheries. Utilization and trade routes varied depending on elasmobranch products, with exports to China (fins) and local market sales (meat). Specifically, 8.4% (n = 5) of fishers confirmed meat and fin exports to China (4.8%, n = 3). The protection of sharks was considered by 32.5% (n = 30) of respondents, while 21.7% (n = 18) believed only certain shark species should be protected. Most respondents reported that rays (80.5%, n = 67) and guitarfishes (61%, n = 51) should not be protected. Regarding the ban on fishing, none considered it for ray species, with only 6.1% (n = 5) supporting this idea for guitarfishes. We highlight the lack of elasmobranch‐specific conservation measures and the need for a multi‐pronged approach to inform policy. Considering the scale of these fisheries, management actions need to be urgently developed and implemented to ensure the sustainability of elasmobranch fisheries while securing the livelihoods of coastal communities.

Recent Declining Trends in Pelagic Fish Catches in the Indian Ocean off Sri Lanka: Is Gill Oxygen Limitation Theory (GOLT) a Possible Explanation?

Recent trends in the pelagic fish landings of multi-day fishing fleets operated from Sri Lanka indicated significant declines in many fish species. Therefore, the present preliminary analysis investigates the perceptions of fishers on recent declining trends of pelagic fish landings from offshore areas of the Indian Ocean and further investigates whether the most common pelagic species landed in Sri Lanka conform to the gill oxygen limitation theory (GOLT) and to speculate GOLT as a possible explanation to such trends. According to the perceptions of 457 skippers of fishing vessels interviewed, such declines were possibly attributed to shifting of the areas of occurrence of pelagic fish species, making them less vulnerable to multi-day fishing vessels. As climate change and deoxygenation are major stressors affecting fish stocks, there is a challenging need for disentangling the impacts of these stressors from the effects of overfishing. The 18 most common pelagic fish species harvested from the Indian Ocean confirmed to the predictions from the GOLT, suggesting that shifting of these stocks could be due to deoxygenation which may have been triggered by increased sea surface and sub-surface temperatures. Therefore, fishery-independent surveys are needed to investigate the shifting of areas of occurrence of pelagic fishes in the Indian Ocean to understand their areas of occurrence the further investigate the relevance of GOLT for defining regional fisheries management plans.

Indications that fishers perceive socio-environmental problems related to hydroelectric plants in the Tocantins river, Brazil

Hydroelectric dams (HEDs) cause significant socio-environmental damage such as reduced fish diversity, population displacement and health problems. The fishers have extensive local ecological knowledge that can be used to improve understanding of the impacts of HEDs. Therefore, the objective of this study was to verify and evaluate the perceptions of fishers about the impacts caused by the HEDs in the Tocantins River. For this, 25 fishers were interviewed using a questionnaire with 22 questions. Data analyses were performed considering descriptive analysis of the responses. There was convergence in the responses of fishers who perceived the decrease in fish diversity after the construction of the HEDs, including fish of commercial interest, which is linked to a decrease in income and decreased food security for these families. In addition, the fishers noted symptoms that may be a consequence of mercury contamination, and diarrhea as a possible consequence of decreased water quality. Despite all these socio-environmental losses, the fishers report a lack of prior consultation, and low representativeness and transparency in the decision-making process that preceded the construction of HEDs. In general, the fishers perceived themselves as being strongly affected from the socio-environmental point of view and do not cite any benefits offered to the community from these projects.

Engaging fishers in sea turtle conservation in the Mediterranean Sea

In the Mediterranean Sea, more than 121,000 sea turtles are incidentally caught each year by a variety of fishing gears, with more than 33,000 deaths and a mortality rate ranging from 10 to 50% depending on the type of fishing gear. Defining how to engage the fishers who are directly involved in incidental catches of turtles is critical to raise their interest, increase awareness and foster their collaboration with the scientific community and authorities. We developed a conceptual model to define the objectives of sea turtle conservation (Final Targets, FTs) at a management, technical, educational, and social level. The achievement of FTs was assessed through four Indicators (interest, scepticism, awareness, cooperation) based on the perception and behaviour of fishers. A 3-phase roadmap was set to engage fishers: 1) Meeting, it is the initial contact between the scientific community and the fishers to create baseline information on where, when, and how bycatch occurs; 2) Deepening the knowledge, it mainly consists on trainings to increase fishers’ awareness of good practices and sustainable fisheries; 3) In the field, where scientists and fishers test innovative bycatch reduction devices (BRDs) aboard on commercial fishing vessel to comprehend the perspective of fishers in terms of the technical solutions proposed by scientists. Combining a theoretical and an empirical approach, this study provides successful indications (bycatch hot-spots, technological innovation of fishing gear, communication strategies, eco-labelling, improved sea turtle survivability) on how to achieve large-scale sea turtle conservation, which could be replicated in other areas.

Factors influencing risk perception of inshore and offshore artisanal fishers in a marine protected area in Brazil

AbstractArtisanal small‐scale fisheries are crucial for subsistence and food security, especially in developing countries. However, artisanal fishers face stressors, such as economic and social marginalization, conflicts, and overfishing. Socio‐economic attributes potentially influence their risk perception. We investigated risk perception among artisanal fishers in a Marine Protected Area through interviews and semi‐structured questionnaires. Risk perception was positively influenced by fishing environment and negatively influenced by a lack of religious beliefs. Offshore fishers faced more operating conditions and time at sea, with higher risk of losses, and perceived more health and conflict risks. Inshore fishers have higher perception of environmental degradation. Prioritizing different risk perceptions is essential for effective fisheries management. Separate management plans for offshore and inshore fisheries are recommended due to varying catch, environmental perception, socio‐environmental risks, and exploited resource characteristics among artisanal fisher groups.

Perception of marine fisheries resources in Tanzania from past to present: Evidence through local knowledge

How communities interact with natural resources is a critical topic of discussion around the world. In this study, we approach the phenomenon from the fishers’ perspective. This study aims to explore the perception and knowledge of local fishers regarding fishing practices. With the help of interviews and focus group discussions with residents of three fishing communities located along the Indian Ocean coast in Tanzania, the research discovered that these local fishers are not just engaged in catching fish; they also possess a valuable understanding of the ocean and fishing practices. The study concludes that incorporating the perception and knowledge of these local fishermen into future fisheries management initiatives could be highly beneficial. Highlights Fishers do not merely fish; they possess rich and valuable knowledge regarding marine resources The knowledge is vital for improved fisheries management Fisheries managers need to consider fishers as knowers, not merely exploiters of fisheries resources Integration of local knowledge and scientific knowledge in fisheries management would yield better fruits

Assessing artisanal fishers' attitude and perception towards electric rays conservation along Indian coast

In India, electric rays are not targeted by fisheries but form a significant portion of bycatch. Little information exists about their ecology and biology. Fishers’ traditional ecological knowledge can fill the knowledge gap for these historically data-deprived fishes. Hence, we assessed attitudes and perceptions of artisanal fishers towards electric rays' conservation. We gathered information on catch frequency, seasonality, population trends, post-capture usages, and socio-economic values through a semi-structured questionnaire survey. We interviewed 243 fishers at 15 artisanal villages in three states: Tamil Nadu, Andhra Pradesh, and Odisha, along the east coast of India. The survey data was scrutinized, sorted into various categories: demographics, fisheries, and fishers’ traditional knowledge, analysed and visualised as graphs and figures. We also presented qualitative information as general statements or quoted specific comments to better explain our findings. We found that fishers were well aware of electric rays and their electrical discharge. The data indicated that fishers knew the habitat in nearshore sandy bottoms. They get electric rays in their bottom-set gill nets. In general, December, January and February have high electric ray bycatch. Post-capture usage includes take-home consumption, discarding them dead, releasing them alive, and sell to poultry. Fishers discussed health benefits of electric rays’ consumption. They perceived a downward trend in population due to anthropogenic influences: overfishing, pollution and climate change. Fishers’ knowledge and scientific contributions can help develop management plans and conservation strategies. Initiating awareness campaigns within fishing communities and coastal citizens foster positive attitudes, thereby enhancing the electric rays’ conservation.

Youth and newcomers in Icelandic fisheries: opportunities and obstacles

Privatized fishery management schemes, alongside other cultural and social changes, have led to a high average age in some fisheries, where youth and newcomers are not meaningfully present in the industry. This research explored the current and future opportunities and constraints for youth and newcomers in Icelandic fisheries, which are managed by an Individual Transferable Quota system. Data were collected through participant observation and 25 semi-structured interviews with key individuals in fisheries. Inductive qualitative analysis of interview data determined recurrent themes that illustrate how rural outmigration, cost, and changing social expectations have led to a decrease of youth and newcomers in Icelandic fisheries. Results show that the perception of fishers in Iceland by the general society fluctuates as the economic and cultural climate of the country changes. The ageing of the fleet in small-scale fisheries is explained by the limited access to consolidated fisheries rights, and the inability for youth to secure capital and invest in a fishery operation. Large-scale fisheries, on the other hand, have a different set of barriers for youth, such as lack of career advancement opportunities and a heavy workload. This research also documents how the absence of youth in small-scale fisheries is partially linked to a high turnover of youth in large-scale fisheries. Youth have more opportunities in large-scale fisheries, but over time, they do not receive adequate training or support to further an independent career, thereby creating a negative feedback loop leading to further reduction of recruitment in small-scale fisheries. Findings from the study support the continued call from academics and practitioners to include issues of access for newcomers in fishery management goals.

At-sea solid waste production by a small-scale fishery in Peru.

Marine litter is a growing environmental problem for which fisheries-sourced waste remains poorly understood. In Peru, there is an ongoing challenge of waste management from the small-scale fisheries fleet given the lack of facilities to receive the variety of debris produced by fishers, which includes hazardous wastes such as batteries. In this study, onboard solid waste production was monitored daily by land-based observers upon landing at the port of Salaverry, Peru, from March to September 2017. The analysed small-scale gillnet and longline fishing fleets produced annually an estimated 11,260 kg of solid waste. Of particular concern is the production of single use plastics (3427 kg) and batteries (861 kg) due to their potential long-lasting impacts on the environment and challenges related to their proper disposal. A management plan for solid waste has been developed for Salaverry; therefore, a subsequent assessment was conducted in 2021-2022 of the behaviours and perceptions of fishers regarding the implementation of this plan. Most fishers (96%) reported disposing of their waste on land, except organic waste which is disposed of at sea. While fishers in Salaverry have become more conscious of the issues surrounding at-sea waste disposal and have an interest in better segregating and managing their waste, there remains a need for improved waste management and recycling protocols and procedures at the port to make this possible.

De-hooking depredation: Exploring multiple fisher perceptions about marine depredation in Florida

Marine depredation involves the removal of or damage to captured fish by predators, and recent evidence suggests it is increasing globally likely due to increasing fishing effort and changes in predator behavior. Anecdotal reports indicate that marine depredation in Florida may be especially severe, given the high number of fishers and predator species. However, the magnitude of marine depredation in Florida and fisher perceptions of these events are poorly understood. We employed a survey of commercial, private recreational, and for-hire saltwater license holders to explore the extent and magnitude of fishing experiences and perceptions related to marine depredation across Florida, highlighting differences among fisher groups using closed- and open-ended survey questions. We found few to no significant differences between fishing sector groups, meaning depredation was prevalent across all locations, gear types, and target species. Most user groups experienced depredation by more than one predator, but sharks and dolphins were reported as the most common predators. Commercial and for-hire operators were more likely to have very negative and negative sentiments toward predators, while private recreational fishers were more likely to view their depredation experiences as neutral. The need for improved management of predators and other fish stocks was expressed across all sectors, especially among commercial fishers. Our results support the growing literature on increased depredation experiences statewide and the need to devise a solution for all marine fisheries users in Florida. We anticipate our exploratory findings to be used as a starting point for researchers and fisheries management agencies to understand fishing sector perceptions and attempt to mitigate negative depredation experiences.

Commercial fisher perceptions illuminate a need for social justice considerations in navigating climate change impacts on fisheries systems

Climate change will amplify stress on marine systems already challenged by conflicts and inequities relating to fisheries access, management decisions, and ocean uses across sectors. Understanding how those most connected to fisheries perceive the risks associated with climate change is critical to developing effective responses and establishing management priorities. Adaptation planning efforts may be hindered by perceptions of unequal or unfair distribution of resources and the processes in place to manage them. In contrast, adaptation planning that is more inclusive, transparent, and addresses social dimensions and perceptions of fisheries is more likely to garner support from fishers and fishing communities broadly. We elicited fisher perceptions of climate change impacts on fisheries, and responses to these impacts, through an online survey of commercial fishers in Canada’s Pacific region. The survey highlights substantial concern for climate change, the impacts it will have on fishers’ livelihoods and well-being, and some of the key challenges that may interfere with the ability of fishers and fisheries management to adapt. We frame the findings of the survey drawing from concepts of social justice, focusing on distributive and procedural justice, as necessary considerations, and context for climate change adaptation planning. Developing plans and processes to respond to climate change impacts on fisheries requires not only understanding ecological impacts and challenges, but also the social and institutional considerations that could help or hinder efforts to respond effectively and equitably to a changing ocean.

Study of Fishers' Perceptions on Environmentally Friendly Fishing Gear Criteria on The East Coast of North Sumatra

This study aimed to describe the development of types of fishing gear in the waters of the east coast of Sumatra from Belawan Waters to Serdang Bedagai Waters and to examine the perceptions of fishers based on the social characteristics of fishers towards environmentally friendly fishing gear based on the Code of Conduct for Responsible Fisheries (CCRF). The method used in this research is descriptive research using the survey method. The population in this study were fishers based in Belawan and Serdang Bedagai waters and using traps and gill nets, as many as 6943 people, with the simple sampling method or slovin method, the results of the sample count were 100 people from the population. Based on eight categories (CCRF) to understand fishers' perceptions of environmentally friendly fishing gear, including the level of selectivity, biodiversity, ecological diversity, not destroying habitat, the safety of fishers and consumers, based on social conditions, based on biodiversity, and based on fish quality, the level of very understanding is 13.2 %, understand 25.2%, neutral 26.7%, don't understand 23.3% and don't understand 11.4%. This study results indicate that the respondents, in general, have begun to realize environmentally friendly fishing gear based on the CCRF.

Lost in translation: understanding divergent perspectives on a depleted fish stock

Fishers commonly disagree with stock assessment results, particularly when a stock declines and strict harvest controls become necessary. Such regulations alter fisher perceptions of stock dynamics, contributing to a divergence in perspectives. Some assessments have inconsistent terminal year values (retrospective patterns) which fuel distrust in scientific advice. When assessment and fishery perspectives disagree, independent surveys can help identify biases and interpret discrepancies. We examine fishery trends and assessment results for Atlantic cod in the Gulf of Maine, a stock which has declined for decades. Trends were compared to a scientific industry cooperative trawl survey and a telephone survey of fisher perceptions. Trawl survey results generally corroborate the assessment perspective on population scale and decline, yet suggest a different view of the age structure. Fisher perceptions were at odds with the assessment and trawl survey and likely resulted from regulations that altered fisher behavior, causing catch rates to increase while the stock declined. Divergent perspectives may be an unavoidable consequence of fishery management, yet acknowledging the underlying mechanisms might help avoid future conflict.

Perceptions of compliance in recreational fisheries: Case study of the Peel-Harvey blue swimmer crab fishery

Effective recreational fisheries management requires a balance between fisher enjoyment and compliance with regulations and fisher perceptions can be useful to understand whether the balance is right. Our study collected fisher insights via an online perceptions survey into compliance within the recreational shore-based Peel-Harvey blue swimmer crab fishery in Western Australia. Overwhelmingly, participants self-reported as complying with regulations; a positive finding for a licence-free fishery. Further, to enable increased quantity and size of available stock and thus overall enjoyment of the fishery, survey participants suggested longer fishery closure periods; harsher noncompliance penalties; more natural and physical surveillance; and greater educational signage in popular fishing areas. These insights challenge existing literature whereby tough regulations are often rejected by fishers and may lead to noncompliance. In a view to achieve a shared goal of a sustainable fishery, we explore survey perceptions against situational crime prevention to optimize compliance, embracing regulator-led ‘cooperative compliance’ outcomes. Our results are useful not only to this fishery but apply more broadly to other fisheries within and beyond Western Australia.

Fisher perceptions of Belize’s Managed Access program reveal overall support but need for improved enforcement

A major challenge facing global fisheries is gaining support for sustainable management, which is vital for ensuring the longevity of coastal resources for livelihood and ecosystem benefits. Territorial User Rights for Fishing (TURFs) have emerged as a possible solution to overfishing by requiring fishers to report their catch, color-code their vessels, and fish in designated areas. Belize was the first country in the Caribbean to implement TURFs — in a program called “Managed Access” — with two pilot sites opening in 2011 and seven sites added in 2016. This study evaluates the knowledge, attitudes and perceptions of fishers in the Managed Access program, comparing responses between 2014 and 2019. We collaborated with the Belize Fisheries Department and two local conservation organizations to administer surveys to 362 fishers in 2014 and 123 fishers in 2019, from ten communities in southern Belize. Overall, fishers in both years understood the requirements for acquiring and renewing their licenses, but in 2019, significantly more fishers understood the logbook reporting requirement and the benefits of having tenure rights than those in 2014. 69% of respondents from 2019 support the program in the long run, but 62% report observing illegal fishing behavior. These data suggest a need to educate fishers about the benefits of accurate catch reporting, improve enforcement, and develop fisher empowerment programs, while also guiding management decisions on a national scale. Although the Managed Access program in Belize is fairly new, the lessons learned can be applied to other small-scale fisheries contexts.

Fishing during the "new normality": social and economic changes in Galapagos small-scale fisheries due to the COVID-19 pandemic.

The crisis caused by COVID-19 has profoundly affected human activities around the globe, and the Galapagos Islands are no exception. The impacts on this archipelago include the impairment of tourism and the loss of linkages with the Ecuadorian mainland, which has greatly impacted the local economy. The collapse of the local economy jeopardized livelihoods and food security, given that many impacts affected the food supply chain. During the crisis, the artisanal fishers of the Galapagos showed a high capacity to adapt to the diminishing demand for fish caused by the drastic drop in tourism. We observed that fishers developed strategies and initiatives by shifting roles, from being mainly tourism-oriented providers to becoming local-household food suppliers. This new role of fishers has triggered an important shift in the perception of fishers and fisheries in Galapagos by the local community. The community shifted from perceiving fisheries as a sector opposed to conservation and in conflict with the tourism sector to perceiving fisheries as the protagonist sector, which was securing fresh, high-quality protein for the human community. This study explores the socio-economic impacts and adaptations of COVID-19 on Galapagos’ artisanal fisheries based on a mixed methods approach, including the analysis of fisheries datasets, interviews, surveys, and participant observation conducted during and after the lockdown. We illustrate the adaptive mechanisms developed by the sector and explore the changes, including societal perceptions regarding small-scale fisheries in the Galapagos. The research proposes strategies to enhance the Galapagos’ economic recovery based on behaviors and traits shown by fishers which are considered potential assets to build-up resilience.Supplementary InformationThe online version contains supplementary material available at 10.1007/s40152-022-00268-z.

Perception of fishers about livelihood developmental interventions by various GOs and NGOs in Indian Sundarbans: A comparative study

The Sundarbans, an important biodiversity hotspot of India, is home to many fishers and owing to its ecological importance, Government Organisations (GOs) and Non-Governmental Organisations (NGOs) are involved in fisheries development. In the present study, interventions done by selected GOs and NGOs and how these have brought a change in the fishers’ livelihood were assessed using the impact matrix of organisations. Information was collected from 300 respondents from 6 selected blocks employing interview schedule. Respondents were asked to rate their perception of how these interventions brought a change in livelihood assets using a five-point scale. Impact scores were calculated using the weighted average technique and revealed impacts on livelihood improvements. Mann-Whitney U-test was applied to know if there was a difference in perception towards interventions done by GOs and NGOs. The study revealed that interventions like bundh building/renovation, demonstration, housing/road/culvert construction, laboratory cum testing facilities and pond excavation scored higher as part of overall perception whereas, SHGs development accrued highest total score for both GOs and NGOs accumulating five capitals of livelihood. Impact matrix exposed that out of five capitals of livelihood, financial capital had a relatively higher score.Keywords: Fisheries, Government organisations, Livelihood, Non-Governmental organisations, Sundarbans

Interactions between small-scale fisheries and marine mammals from the perspective of fishers in the Mexican tropical pacific coast

The increase in fishing effort and the expansion of the fishing grounds of small-scale fisheries increase the interactions with marine mammals globally. Such interactions are poorly understood since data is difficult to obtain. The aim of this study is to infer the interactions between small-scale fisheries and marine mammals, based on the fisher’s perspective. We used the southern coast of Chiapas, Mexico as the location for the model. A total of 56 interviews and eight fishery trips were conducted in three fishing communities. Fishing vessels are 7 m long with an outboard engine with 58.9% of fishers using gillnets and 21.4% using longlines. Fishers were able to identify three marine mammal species in their fishing grounds: Tursiops truncatus, Stenella longirostris, and Stenella attenuata graffmani. However, based on photographs, fishers identified seven additional species. Tursiops truncatus interacts negatively with their fishing activities by stealing fish, ripping nets, interfering during sets, and stealing bait from longlines, which fosters a negative perception among fishers. Despite this, fishers implement low-impact mitigation measures. A Canonical Correspondence Analysis revealed the adverse impact of the common bottlenose dolphin on Scomberomorus sierra fishing with gillnets at the coastal zone. The presence of S. longirostris centroamericana and S. attenuata graffmani has a positive impact on the fishery because are indicators of fish schools. The perception of fishers is key to understanding the complex relationship between fisheries and marine mammals, and can help set the basis for management and conservation programs in areas where such interactions are intense.