The influence of gear selectivity and spawning behavior on a data-poor assessment of a spawning aggregation fishery

Erisman, Brad; Apel, Ashley; MacCall, Alec D.; Román, Martha J.; Fujita, Rod

doi:10.1016/j.fishres.2014.05.013

Cited by 38 publications

(63 citation statements)

References 38 publications

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“…migrate to form massive spawning aggregations at specific locations and during specific periods (Erisman et al 2014). It is not surprising that Epinephelus spp.…”

Section: Discussionmentioning

confidence: 99%

Molecular phylogeny inferred from mitochondrial DNA of the grouper Epinephelus spp. in Indonesia collected from local fish market

et al. 2015

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Abstract. Jefri E, Zamani EP, Subhan B, Madduppa HH. 2015. Molecular phylogeny inferred from mitochondrial DNA of the grouper Epinephelus spp. in Indonesia collected from local fish market. . Groupers are widely distributed in the tropical and subtropical coastal waters, and are globally one of the most commercially important groups of marine fish, commanding high market price and are being heavily targeted in fisheries. Over fishing in Indonesia becomes a pivotal factor, which is seriously threatening the grouper biodiversity, as separate catch statistics are not reported for most species, and landings are often summarized as 'serranids' or 'groupers'. This lack of species-specific catch data is due to the difficulty of identifying many of the species. The focus of this study was the tracking of molecular phylogeny of Epinephelus spp. of the family Serranidae. DNA amplification using mitochondrial cytochrome oxidase I resulted in 526-base pairs long sequences all samples. A total of seven species were characterized that are (Epinephelus areolatus, E. merra, E. fasciatus, E. longispinis, E. coioides, E. ongus and E. coeruleopunctatus). All of which were found to belong to 7 different clades in the constructed phylogenetic tree. E. ongus is genetically closest to E. coeruleopunctatus with genetic distance 0.091 (9%), whereas the farthest genetic distance was successfully identified between E. ongus and E. merra with genetic distance 0.178 (18%). Migration activity on spawning and movement of larvae that are affected by Indonesian Through flow suspected as the cause of the closeness between species grouper Epinephelus spp. in the phylogeny tree from several Indonesian seas, although information about the location and time of Epinephelus spp. spawning activity sometimes difficult to obtain certainty. Fish identification using molecular phylogenetic approach has been successfully applied in this study. It seems need further application on this method to avoid misidentification and due to high variety of species landing at local fish market. Nevertheless, this study would be an important data in the genetic management for the sustainable conservation and trade of grouper (Epinephelus spp.) in Indonesia.

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“…migrate to form massive spawning aggregations at specific locations and during specific periods (Erisman et al 2014). It is not surprising that Epinephelus spp.…”

Section: Discussionmentioning

confidence: 99%

Molecular phylogeny inferred from mitochondrial DNA of the grouper Epinephelus spp. in Indonesia collected from local fish market

et al. 2015

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“…These factors are crucial to the dynamics of small and large-scale fishing, as they are known to influence the life cycle, abundance, biomass and species richness [3–5], and for determining spawning [6] and food aggregations [6, 7]. …”

Section: Introductionmentioning

confidence: 99%

The use of Local Ecological Knowledge as a complementary approach to understand the temporal and spatial patterns of fishery resources distribution

Lima

Oliveira

Nóbrega

et al. 2017

J Ethnobiology Ethnomedicine

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BackgroundAcquiring fast and accurate information on ecological patterns of fishery resources is a basic first step for their management. However, some countries may lack the technical and/or the financial means to undergo traditional scientific samplings to get such information; therefore affordable and reliable alternatives need to be sought.MethodsWe compared two different approaches to identify occurrence patterns and catch for three main fish species caught with bottom-set gillnets used by artisanal fishers from northeast Brazil: (1) scientific on-board record data of small-scale fleet (n = 72 trips), and (2) interviews with small-scale fishers on Local Ecological Knowledge (LEK) (n = 32 interviews). We correlated (Pearson correlations) the months cited by fishers (LEK) as belonging to the rainy or to the dry season with observed periods of higher and lower precipitation (SK). The presence of the three main fish species at different depths was compared between LEK and SK by Spearman correlations. Spearman correlations were also used to compare the depths of greatest abundance (with the highest Capture per Unit Effort - CPUE) of these species; the CPUEs were descendly ordered.ResultsBoth methods provided similar and complementary bathymetric patterns of species occurrence and catch. The largest catches occured in deeper areas, which also happened to be less intensively fished. The preference for fishing in shallower and less productive areas was mostly due to environmental factors, such as weaker currents and less drifting algae at such depths.ConclusionBoth on-board and interview methods were accurate and brought complementary information, even though fishers provided faster data when compared to scientific on-board observations. When time and funding are not limited, integrative approaches such as the one presented here are likely the best option to obtain information, otherwise fishers’ LEK could be a better choice for when a compromise between speed, reliability and cost needs to be reached.Electronic supplementary materialThe online version of this article (doi:10.1186/s13002-017-0156-9) contains supplementary material, which is available to authorized users.

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“…Gulf curvina are synchronous, multiple batch spawners (Gherard et al, 2013). The entire spawning stock of adult curvina migrates into the spawning aggregation grounds from late February through early June, making it highly vulnerable to overfishing (Erisman et al, 2012(Erisman et al, , 2014. Another aggregating fish, the Totoaba macdonaldi, was severely overfished in this region during the 1950s (Barrera Guevara, 1990;IUCN, 2010) resulting in the closure of the fishery in 1974 (Cisneros-Mata et al, 1995;Lercari and Chávez, 2007).…”

Section: Curvina Fishery Of the Upper Gulf Of California Mexicomentioning

confidence: 99%

“…Fishery monitoring initiated in 1997 generated data streams that were used to conduct datalimited assessments of stock status. These assessments suggested that the stock contained a low proportion of older, highly fecund individuals (Erisman et al, 2014) and other indications that the stock was experiencing high levels of fishing mortality, creating a relatively high risk of overfishing and stock collapse (Erisman et al, 2012).…”

Section: Curvina Fishery Of the Upper Gulf Of California Mexicomentioning

confidence: 99%

Integrating Science-Based Co-management, Partnerships, Participatory Processes and Stewardship Incentives to Improve the Performance of Small-Scale Fisheries

et al. 2017

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Small scale fisheries are critically important for the provision of food security, livelihoods, and economic development for billions of people. Yet, most of these fisheries appear to not be achieving either fisheries or conservation goals, with respect to creating healthier oceans that support more fish, feed more people and improve livelihoods. Research and practical experience have elucidated many insights into how to improve the performance of small-scale fisheries. Here, we present lessons learned from five case studies of small-scale fisheries in Cuba, Mexico, the Philippines, and Belize. The major lessons that arise from these cases are: (1) participatory processes empower fishers, increase compliance, and support integration of local and scientific knowledge; (2) partnership across sectors improves communication and community buy-in; (3) scientific analysis can lead fishery reform and be directly applicable to co-management structures. These case studies suggest that a fully integrated approach that implements a participatory process to generate a scientific basis for fishery management (e.g., data collection, analysis, design) and to design management measures among stakeholders will increase the probability that small-scale fisheries will implement science-based management and improve their performance.

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The influence of gear selectivity and spawning behavior on a data-poor assessment of a spawning aggregation fishery

Cited by 38 publications

References 38 publications

Molecular phylogeny inferred from mitochondrial DNA of the grouper Epinephelus spp. in Indonesia collected from local fish market

Molecular phylogeny inferred from mitochondrial DNA of the grouper Epinephelus spp. in Indonesia collected from local fish market

The use of Local Ecological Knowledge as a complementary approach to understand the temporal and spatial patterns of fishery resources distribution

Integrating Science-Based Co-management, Partnerships, Participatory Processes and Stewardship Incentives to Improve the Performance of Small-Scale Fisheries

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