Small-scale fisheries

小规模渔业
  • 文章类型: Journal Article
    生计倡议在海洋保护区(MPA)中很常见,旨在减轻贫困或提高收入机会。然而,结果可以在现实中混合,以及随着时间的变化。此外,谁受益是一个关键的考虑因素,由于结果可能会根据不等式而有所不同,包括性别。这里,在桑给巴尔的三个MPA地区调查了不同生计策略的货币结果,坦桑尼亚。使用定量方法,结果显示,生计在六年内发生了变化,生计策略在贫困发生率和收入方面有所不同。生计倡议,即海藻养殖和旅游业,与长期生计相比,没有提供显著更高的货币回报,比如渔业。海藻养殖显示收入稳定,但主要在女户主家庭中的贫困发生率很高。在学习期间,男人主要留在渔业中,当女性转向小企业和渔业时,主要退出海藻养殖。这强调了对适应性的需求,快速变化的沿海地区对性别问题有敏感认识的管理。
    Livelihood initiatives are common within marine protected areas (MPAs) aiming for poverty alleviation or higher income opportunities. However, results can be mixed in reality, as well as change over time. Furthermore, who benefits is a key consideration, as results can vary based on inequalities, including gender. Here, the monetary outcomes of different livelihood strategies were investigated across three MPA regions in Zanzibar, Tanzania. Using a quantitative approach, the results show that livelihoods have shifted in a six-year period, with livelihood strategies differing in poverty incidence and income. Livelihood initiatives, namely seaweed farming and tourism, did not provide significantly higher monetary returns compared to long-standing livelihoods, such as fisheries. Seaweed farming showed income stability but a high poverty incidence predominantly within women-headed households. During the study period, men primarily remained in fisheries, whilst women shifted to small-scale businesses and fisheries, largely exiting seaweed farming. This underscores a need for adaptive, gender sensitive management within fast changing coastal contexts.
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  • 文章类型: Journal Article
    互联网从城市扩展到农村和沿海地区,改变了生活的方方面面,包括生活方式和工作实践。尽管一些研究表明,互联网的使用在渔业部门至关重要,需要更多有关互联网使用与小规模渔民主观幸福感之间联系的信息。本研究首次尝试探讨网络使用对主观幸福感的影响,特别是小规模渔民。这项研究使用了来自东爪哇220名受访者的横截面数据,印度尼西亚。两阶段预测替代(2SPS)方法用于解决估计中的内生性问题。结果显示,捕鱼工具,获得信贷,和区域对小规模渔民使用互联网的决心产生了积极和显著的影响。储蓄和非农就业对收养决定产生重大负面影响。主要发现表明,使用互联网可以显着提高小规模渔民的主观幸福感(以幸福感和生活满意度为代表)。这表明,需要改善沿海地区的互联网基础设施,以支持渔业部门的经济活动,并促进小规模渔民的福祉。
    The expansion of Internet access from urban to rural and coastal areas has changed all aspects of life, including lifestyles and work practices. Although several studies have shown that Internet use is essential in the fisheries sector, more information about the link between Internet usage and subjective well-being among small-scale fishermen is needed. This study is the first attempt to investigate the effect of Internet use on subjective well-being, particularly for small-scale fishers. This study used cross-sectional data from 220 respondents in East Java, Indonesia. Two-stage predictor substitution (2SPS) approaches were used to address the endogeneity issue in the estimation. The results revealed that fishing tools, access to credit, and region positively and significantly influenced small-scale fishers\' determination to use the Internet. Savings and off-farm employment significantly and negatively affect adoption decisions. The main findings suggest that Internet use significantly increases small-scale fishermen\'s subjective well-being (proxied by happiness and life satisfaction). This suggests that improving the Internet infrastructure in coastal areas is needed to support economic activities in the fisheries sector and boost the well-being of small-scale fishers.
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  • 文章类型: Journal Article
    小型渔业(SSF)使用静态渔具,这些渔具被认为比拖曳渔具更有利地与海洋生态系统相互作用。尽管如此,trammel网,地中海SSF中使用最广泛的渔具之一,产生大量的丢弃物,可以占捕获生物量的25%或更多。废弃的生物可能包括濒危或受威胁的物种,如弹性枝,以及损坏渔具或导致解开延误的非商业无脊椎动物。我们评估了各种trammel-net齿轮改装,包括(i)使用附于脚绳的防护网,(ii)增加脚绳与网面板之间的索具绳线的长度,和(iii)减小外板的网眼尺寸。最后两项修改成功地降低了对大理石射线鱼雷marmorata的捕获,通常在研究区域丢弃。这两种修改都相对简单,他们的制造并不代表实施的额外成本,最重要的是,它们不会对目标物种的捕捞产生负面影响。目前的研究表明,事先评估不同等级的丢弃情况对于完成特定物种的装备改造至关重要,并强调了科学家之间合作的重要性,渔民和渔具制造商。
    Small-scale fisheries (SSF) use static gear which are thought to interact with marine ecosystems more benignly than towed gear. Despite this, trammel nets, one of the most extensively used type of fishing gear in the Mediterranean SSF, generate large amounts of discards, which can account for 25% or more of the captured biomass. Discarded organisms may include endangered or threatened species such as elasmobranchs, as well as non-commercial invertebrates that damage fishing gear or cause disentanglement delays. We evaluated various trammel-net gear modifications, including (i) the use of a guarding net attached to the footrope, (ii) increasing the length of the rigging twine between the footrope and the netting panel, and (iii) decreasing the mesh size of the outer panels. The last two modifications were successful in lowering captures of the marbled electric ray Torpedo marmorata, which is commonly discarded in the study area. Both sorts of modifications are relatively simple, their manufacturing does not represent an added cost to implement, and most importantly they do not negatively affect the catch of the target species. The current study shows that prior evaluation of the discard profile of distinct métiers is essential to accomplish species-specific gear modifications and underlines the importance of collaboration among scientists, fishers and gear manufacturers.
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  • 文章类型: Journal Article
    尽管在Ubatuba的Lázaro和SacodaRibeira的Caiçara小规模捕鱼社区成员的生活中有很多,巴西东南部会暗示困难,人们对生活的满意度令人惊讶。在本文中,我们使用通过人种学应用的社会福祉镜头,混合方法的方法来反思这种整体感觉,即植根于小规模捕鱼的生活非常值得生活,尽管它们面临许多挑战。我们将经典的海洋人类学主题视为意义和生活满意度的核心。身份提供了人们如何与现实互动的核心方面,并锚定了作为工作和社会关系参考点的价值观。参考社会福祉视角揭示的关系细微差别,然而,我们表明,凯萨拉和小规模捕鱼的身份不是单一的,但反映了性别和其他社会地位,以及个人和家庭经历。这些经验包括努力应对经济的复杂影响,社会,政治,和环境变化。最后,我们认为,寻求优先考虑人类福祉的渔业政策将通过采用社会福祉观点而受益。因此,渔业政策可以考虑到身份,值,和社会生活的关系元素赋予了小规模渔民的意义和归属感,同时也认识到由于社会和经济差异而引起的人类经验的交叉变化,而且往往是相互矛盾的。小规模渔民的这种社会结构塑造了他们的意图和行动,因此是其支持者需要考虑的渔业管理实践的必要复杂性。
    Although much in the lives of members of the Caiçara small-scale fishing communities of Lázaro and Saco da Ribeira in Ubatuba, southeastern Brazil would suggest hardship, that population expresses a surprising degree of satisfaction with life. In this paper, we use a social wellbeing lens as applied through an ethnographic, mixed methods approach to reflect on this overall sense that lives rooted in small-scale fishing are well worth living despite their many challenges. We see the classic maritime anthropology theme of identity at the heart of meaning and life satisfaction. Identity provides core aspects of how people engage with their realities and anchors values that are reference points in work and social relations. With reference to the relational nuances revealed by the social wellbeing perspective, however, we show that Caiçara and small-scale fishing identities are not monolithic, but reflect gender and other social positions, and personal and familial experiences. These experiences include grappling with the complex effects of economic, social, political, and environmental changes. We conclude by arguing that fisheries policy that seeks to prioritize human wellbeing would benefit by adopting a social wellbeing perspective. Fisheries policy could thereby take into account identity, values, and relational elements of social life that give meaning and a sense of belonging to small-scale fishers, while also recognizing the cross-cutting and often contradictory variations in human experience that arise from social and economic differences. This social fabric of small-scale fishers\' lives shapes their intentions and actions and is thus a necessary complication to the practice of fisheries management that its proponents need to consider.
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  • 文章类型: Journal Article
    自从国家政府为应对COVID-19大流行而对旅行和社会距离施加限制以来,印度尼西亚小规模渔业的渔获量和渔获量大幅下降。使用数字数据收集系统(OurFish),记录了鱼类商人从小规模渔民那里购买的商品,收集了苏拉威西岛东南部82个沿海社区的数据。我们发现,在大流行爆发后,活跃渔民和贸易商的数量下降了90%以上,每个渔民每次捕鱼的平均渔获量增加。尽管大流行开始后,每公斤鱼的平均价格有所下降,能够维持捕鱼的渔民平均渔获量较高,因此维持了每日渔获量。与通常出售给当地市场的低价值鱼种相比,通常进入出口供应链的高价值鱼种受到的负面影响更大。我们采访了苏拉威西省东南部82个社区中的20个社区的185个小规模渔民和鱼类贸易商,记录对当地渔业和鱼类贸易的影响程度,产生这种影响的原因并提出应对策略。超过50%的渔民和鱼类贸易商都认为,贸易商对鱼类的需求不足以及鱼类价格的下降正在破坏他们的生活。大约75%的男性和女性渔民都通过继续捕鱼来应对,强调采访时几乎没有替代生计。我们的研究结果为小规模捕鱼社区对COVID-19大流行影响的脆弱性提供了关键见解。
    The volume and value of fish catches by Indonesia\'s small-scale fisheries have declined significantly since national government restrictions on travel and social distancing were imposed in response to the COVID-19 pandemic. Using a digital data collection system (OurFish), that records purchases by fish traders from small-scale fishers, data was collected across 82 coastal communities in Southeast Sulawesi. We found that the number of active fishers and traders declined by more than 90% after the onset of the pandemic and the average weight of catch per fishing trip increased across fishers. Although the average price per kilogram of fish declined after the pandemic began, fishers that were able to maintain fishing had on average higher catches and therefore daily catch value was maintained. High value fisheries that usually enter export supply chains were more negatively impacted compared with lower value species that are commonly sold to local markets. We interviewed 185 small scale fishers and fish traders across 20 of the 82 communities in Southeast Sulawesi province, recording the perceived level of impact on local fisheries and the fish trade, causes of this impact and proposed coping strategies. Over 50% of both fishers and fish traders believed low demand for fish from traders and a decline in the price received for fish were disrupting their lives. Approximately 75% of both male and female fishers are coping by continuing to fish, highlighting that there were few alternative livelihoods available at the time of the interviews. Our results provide key insights into the vulnerability of small-scale fishing communities to impacts of the COVID-19 pandemic.
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  • 文章类型: Journal Article
    气候变化,全球化,工业和城市活动的增加威胁到小规模渔业的可持续性和生存能力。受影响的人如何集体动员他们的行动,分享知识,建立他们的本地适应能力将决定他们如何最好地应对这些变化。本文考察了小规模捕捞行为者所经历的变化,社会和治理的复杂性,以及林贝渔业系统的可持续性挑战,喀麦隆。借鉴鱼类作为食物的框架,我们讨论了鉴于全球威胁的融合,无效的渔业管理如何导致鱼类收获机活动的变化,造成鱼类供应短缺和鱼类价值链中断。本文通过与鱼类收割机和鱼贩的焦点小组讨论,提出了三个关键发现。首先,我们表明,捕鱼活动的增加和渔业管理不力导致的渔业变化扰乱了鱼类的捕捞和供应,影响小规模捕鱼行为者及其社区的社会和经济福祉。第二,由于鱼类供应短缺,渔业价值链存在复杂性,在其活动不受任何特定规则或政策管制的渔业行为者之间造成冲突。第三,尽管林贝小规模渔业很重要,捕鱼行为者放弃了管理,他们没有适当的能力来设计和执行有效的渔业管理程序和防止非法捕鱼活动。这种未被充分研究的渔业的经验发现为鱼类作为食物框架的文献做出了学术贡献,并表明需要支持小规模行为者的捕鱼活动和林贝渔业系统的可持续性。
    UNASSIGNED:在线版本包含补充材料,可在10.1007/s40152-023-00296-3获得。
    Climate change, globalization, and increasing industrial and urban activities threaten the sustainability and viability of small-scale fisheries. How those affected can collectively mobilize their actions, share knowledge, and build their local adaptive capacity will shape how best they respond to these changes. This paper examines the changes experienced by small-scale fishing actors, social and governance complexities, and the sustainability challenges within the fisheries system in Limbe, Cameroon. Drawing on the fish-as-food framework, we discuss how ineffective fishery management in light of a confluence of global threats has resulted in changes to fish harvesters\' activities, causing shortages in fish supply and disruptions in the fish value chain. The paper uses focus group discussions with fish harvesters and fishmongers to present three key findings. First, we show that changes in the fisheries from increased fishing activities and ineffective fishery management have disrupted fish harvesting and supply, impacting the social and economic well-being of small-scale fishing actors and their communities. Second, there are complexities in the fisheries value chain due to shortages in fish supply, creating conflicts between fisheries actors whose activities are not regulated by any specific set of rules or policies. Third, despite the importance of small-scale fisheries in Limbe, management has been abandoned by fishing actors who are not well-equipped with the appropriate capacity to design and enforce effective fishery management procedures and protections against illegal fishing activities. Empirical findings from this understudied fishery make scholarly contributions to the literature on the fish-as-food framework and demonstrate the need to support small-scale actors\' fishing activities and the sustainability of the fisheries system in Limbe.
    UNASSIGNED: The online version contains supplementary material available at 10.1007/s40152-023-00296-3.
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  • 文章类型: Journal Article
    调节小型渔船的燃料消耗可以帮助将全球变暖控制在1.5°C以下,并对印度等发展中国家的小型渔业(SSF)进行有效管理。在这方面,采用自下而上的方法来收集必要的数据,以探索印度东南沿海小型渔船的燃料消耗。因此,根据捕捞方法,将24艘渔船(A型至X型)分为7类。燃料使用强度(FUI)的估计数值范围为0.08至0.80,用于检查节油渔船和发动机类型。此外,使用Tier1方法的燃料估计收入从5625.06/l到218.07/l和年度温室气体(GHG)排放量用于了解经济效率和GHG排放趋势,分别。选定地点所有渔船的年度温室气体排放总量约为1.25E+08tCO2-eqyear-1。结果表明,延绳钓和刺网,Seine-netters,长缆和漂流网在很大程度上贡献了年温室气体排放量的65%。通过认识影响SSF渔船燃料消耗的因素,这个部门可以理解,有效管理,并且表现良好。因此,通过比较方法广泛讨论了可能的原因,并提出了有效管理的潜在建议。
    Regulating the fuel consumption of small-scale fishing vessels could help to keep global warming well below 1.5 °C and lead to effective management in small-scale fisheries (SSF) of developing countries like India. In this regard, a bottom-up approach was carried out to collect the requisite data to explore the fuel consumption of small-scale fishing vessels along India\'s southeast coast. Consequently, twenty-four fishing vessels (type A to type X) were grouped into seven categories based on fishing methods. The estimated numerical value of fuel use intensity (FUI) ranging from 0.08 to 0.80 was used to examine the fuel-efficient fishing vessel and engine type. In addition, the estimated revenue on fuel ranging from ₹5625.06/l to ₹218.07/l and annual greenhouse gas (GHG) emissions using the Tier 1 method were used to understand the economic efficiency and GHG emission trend, respectively. The total annual GHG emissions from all the fishing vessels at the selected sites were about 1.25E + 08 t CO2-eq year-1. The result shows that longline-cum-gillnetters, seine-netters, longliners and drift-gillnetters largely contributed to 65% of the annual GHG emissions. By recognizing the factors influencing the fuel consumption of fishing vessels in SSF, this sector could be understood, effectively managed, and performed well. Therefore, the possible reasons were extensively discussed through a comparative approach, and potential recommendations for effective management were made.
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  • 文章类型: Systematic Review
    热带内陆捕捞渔业容易受到栖息地破坏等一系列脆弱性,生物多样性丧失,污染,过度捕捞,入侵物种和人为气候变化。尚未充分尝试对气候不确定性对印度内陆渔业的影响进行全面审查。最近的方法强调在区域背景下基于生态系统的管理,专门针对内陆渔业,以应对气候变化,到目前为止还没有报告。本文对印度内陆渔业资源面临的气候脆弱性以及该国为资源的可持续性提出的各种适应和缓解战略进行了重要的文献计量审查。在这份通讯中,提出并讨论了气候变化和其他压力因素对次大陆各种内陆生态系统的影响以及印度采用的基于生态系统的管理策略。
    Tropical inland capture fisheries are susceptible to a series of vulnerabilities such as habitat destruction, biodiversity loss, pollution, overfishing, invasive species and anthropogenic climate change. A comprehensive review of the impact of climatic uncertainties on Indian inland fisheries has not been adequately attempted yet. Recent approaches emphasizing ecosystem-based management in a regional context, specific to inland fisheries for combating climatic changes, have not been reported to date. The paper presents a critical bibliometric review of the climatic vulnerabilities faced by Indian inland fishery resources and various adaptive and mitigation strategies put forward by the country for the sustainability of the resources. In this communication, a systematic review of the impact of climate change and other stressors on various inland ecosystems of the subcontinent and the ecosystem-based management strategies adopted in India is presented and discussed.
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  • 文章类型: Journal Article
    持续的COVID-19大流行和相关的缓解措施扰乱了支持健康的全球系统,粮食和营养安全,数十亿人的生计。这些中断同样影响了小规模渔业(SSF)部门,破坏SSF供应链,暴露全球海产品分销系统的弱点。为未来发展该部门的适应能力和复原力提供信息,重要的是要了解供应链参与者在面对宏观经济冲击时的反应。比较四个国家的七个SSF案例研究,我们探索演员如何应对COVID-19中断,确定对自适应响应的约束,并描述不同案例的中断和反应模式。在所有检查的病例中,参与者将重点转移到本地和区域分销渠道,特别是利用灵活性,组织,并学习重新定位现有的网络,并利用技术来发挥自己的优势。接触国内消费者的主要制约因素包括国内对流动和劳动力的限制,国内消费者的消费能力降低,缺乏现有的分销渠道。此外,缺乏对SSF作为基本食品生产者的认可,以及获得技术的不平等阻碍了继续当地海产品供应的努力。我们认为,COVID-19的最初影响凸显了过度依赖全球贸易网络的风险。能够最成功地改变战略的SSF拥有当地组织和联系,他们以创新的方式利用这些组织和联系。因此,支持本地和国内网络以及供应链中的灵活组织可能有助于在面对未来宏观经济冲击时建立韧性。重要的是,在这种大规模中断之前和期间,加强国内市场的金融福祉和安全对于支持持续的供应链运作和宏观经济危机期间的持续粮食供应至关重要。
    The ongoing COVID-19 pandemic and associated mitigation measures have disrupted global systems that support the health, food and nutrition security, and livelihoods of billions of people. These disruptions have likewise affected the small-scale fishery (SSF) sector, disrupting SSF supply chains and exposing weaknesses in the global seafood distribution system. To inform future development of adaptive capacity and resilience in the sector, it is important to understand how supply chain actors are responding in the face of a macroeconomic shock. Comparing across seven SSF case studies in four countries, we explore how actors are responding to COVID-19 disruptions, identify constraints to adaptive responses, and describe patterns of disruption and response across cases. In all cases examined, actors shifted focus to local and regional distribution channels and particularly drew on flexibility, organization, and learning to re-purpose pre-existing networks and use technology to their advantage. Key constraints to reaching domestic consumers included domestic restrictions on movement and labor, reduced spending power amongst domestic consumers, and lack of existing distribution channels. In addition, the lack of recognition of SSFs as essential food-producers and inequities in access to technology hampered efforts to continue local seafood supply. We suggest that the initial impacts from COVID-19 highlight the risks in of over-reliance on global trade networks. The SSFs that were able to change strategies most successfully had local organizations and connections in place that they leveraged in innovative ways. As such, supporting local and domestic networks and flexible organizations within the supply chain may help build resilience in the face of future macroeconomic shocks. Importantly, bolstering financial wellbeing and security within the domestic market both before and during such large-scale disruptions is crucial for supporting ongoing supply chain operations and continued food provision during macroeconomic crises.
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  • 文章类型: Journal Article
    欧洲呼吁结束渔业丢弃,这意味着将所有捕获的鱼(受最小尺寸或配额限制)带到陆地。这一决定对生态系统有利,因为它迫使渔具的选择性得到改善。然而,手工渔民发现自己处于脆弱的境地,他们的生存取决于利润微薄的渔获量。这项着陆义务的豁免是存在的,因为它还规定,那些生存得到科学保证的动物可以返回大海。在这里,我们研究了由钩线和刺网捕获的Plectorhinchusmediterraneus的生存,以及他们的生理恢复。在这两种情况下,存活率均超过93%。初级(皮质醇)和次级(能量动员,酸碱和矿物平衡,和免疫系统)的应激反应表明存活的动物能够在捕鱼后恢复。因此,我们提出了捕获该物种的最佳尺寸,以实现更大的经济效益。为此,近年来,我们依赖于根据尺寸的价格,以及物种的生长曲线。这样,通过释放不到1公斤的鱼,当前的收益可以乘以2.3到9.6倍。这项试点研究通过与丢弃物生存有关的科学数据以及销售价格信息,为规范手工渔业奠定了基础。
    Europe calls for the end to fisheries discards, which means bringing all caught fish (subject to minimum sizes or quotas) to land. This decision is beneficial to the ecosystem, since it forces the selectivity of the fishing gears to improve. However, artisanal fishermen find themselves in a vulnerable situation where their subsistence depends on catches with small profit margins. An exemption to this landing obligation exists, as it is also ruled that those animals whose survival is scientifically guaranteed may be returned to the sea. Here we study the survival of Plectorhinchus mediterraneus captured by hookline and gillnet, as well as their physiological recovery. Survival exceeds 93% in both cases. The physiological assessment of primary (cortisol) and secondary (energy mobilization, acid-base and hydromineral balance, and immune system) stress responses indicates that surviving animals are able to recover after fishing. Thus, we propose the optimal size of capture of this species to achieve greater economic benefit. For this, we rely on the prices according to size in recent years, as well as on the growth curves of the species. In this way, by releasing fish of less than 1 kg, the current benefits could be multiplied between 2.3 and 9.6 times. This pilot study lays the groundwork for regulating artisanal fisheries through scientific data related to survival of discards along with information on the sale prices.
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