FAO's statistic data and sustainability of fisheries and aquaculture: Comments on Pauly and Zeller (2017)

Ye, Yimin; Barangé, Manuel; Beveridge, M. C. M.; Garibaldi, Luca; Gutiérrez, Nicolás; Anganuzzi, Alejandro; Taconet, Marc

doi:10.1016/j.marpol.2017.03.012

Cited by 48 publications

(33 citation statements)

References 15 publications

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“…The data used in our analysis are reconstructed catch data that attempt to correct for underreporting ( 12 , 13 ). Some analysts have criticized catch reconstructions on a methodological basis, suggesting high uncertainty about the reliability of the reconstructions and claiming that FAO’s annual catch reports are “the only validated source of global fisheries landings” ( 14 ), but see ( 15 ). Reconstructed data suggest catches perhaps 30% larger than those reported by FAO ( 13 ), which makes our estimates of fishing revenue and profits larger than they would be had we used FAO’s raw data.…”

Section: Discussionmentioning

confidence: 99%

The economics of fishing the high seas

et al. 2018

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Section: Discussionmentioning

confidence: 99%

The economics of fishing the high seas

et al. 2018

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“…Specifically, the period between years 1975 and 2000 was characterized by the highest catches, much of which were not reported to FAO (Figure 1). Catch data from FAO has often come under attack for being inaccurate at best, and unreliable at worst (Lobo and Jacques, 2017;Pauly and Zeller, 2017;Ye et al, 2017). It should be kept in mind, however, that FAO reports in its database only what is reported to it.…”

Section: Discussion Comparing Reported and Estimated Total Landingsmentioning

confidence: 99%

Out of Sight, But Within Reach: A Global History of Bottom-Trawled Deep-Sea Fisheries From >400 m Depth

et al. 2018

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Deep-sea fish species are targeted globally by bottom trawling. The species captured are often characterized by longevity, low fecundity and slow growth making them vulnerable to overfishing. In addition, bottom trawling is known to remove vast amounts of non-target species, including habitat forming deep-sea corals and sponges. Therefore, bottom trawling poses a serious risk to deep-sea ecosystems, but the true extent of deep-sea fishery catches through history remains unknown. Here, we present catches for global bottom trawling fisheries between years 1950-2015. This study gives new insight into the history of bottom trawled deep-sea fisheries through its use of FAO capture data combined with reconstructed catch data provided by the Sea Around Us -project, which are the only records containing bycatches, discards and unreported landings for deep-sea species. We illustrate the trends and shifts of the fishing nations and discuss the life-history and catch patterns of the most prominent target species over this time period. Our results show that the landings from deep-sea fisheries are miniscule, contributing less than 0.5% to global fisheries landings. The fisheries were found to be overall under-reported by as much as 42%, leading to the removal of an estimated 25 million tons of deep-sea fish. The highest catches were of Greenland halibut in the NE Atlantic, Longfin codling from the NW Pacific and Grenadiers and Orange roughy from the SW Pacific. The results also show a diversification through the years in the species caught and reported. This historical perspective reveals that the extent and amount of deep-sea fish removed from the deep ocean exceeds previous estimates. This has significant implications for management, conservation and policy, as the economic importance of global bottom trawling is trivial, but the environmental damage imposed by this practice, is not.

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“…FAO acknowledges its concerns on the quality of biomass production data, and data reported by FAO on behalf of reporting countries are incomplete with underrepresentation of nonindustrial (e.g., artisanal, subsistence, and recreational) and illegal fisheries [75][76][77] . Therefore, we use the reconstruction of wild marine catches from Sea Around Us to correct the FAO database for the underrepresented fish harvest.…”

Section: Methodsmentioning

confidence: 99%

“…Uncertainty or accuracy of fish biomass production data is debatable, and is not straightforward to assess [75][76][77][78][79] . One alternative strategy is to assign scores, which are associated with certain categorized uncertainty levels, for each data source that contributes to fish biomass production based on expert judgments 78 .…”

Section: Methodsmentioning

confidence: 99%

The shift of phosphorus transfers in global fisheries and aquaculture

et al. 2020

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Global fish production (capture and aquaculture) has increased quickly, which has altered global flows of phosphorus (P). Here we show that in 2016, 2:04 3:09 1:59 Tg P yr −1 (mean and interquartile range) was applied in aquaculture to increase fish production; while 1:10 1:14 1:04 Tg P yr −1 was removed from aquatic systems by fish harvesting. Between 1950 and 1986, P from fish production went from aquatic towards the land-human systems. This landward P peaked at 0.54 Tg P yr −1 , representing a large but overlooked P flux that might benefit land activities under P scarcity. After 1986, the landward P flux decreased significantly, and became negative around 2004, meaning that humans spend more P to produce fish than harvest P in fish capture. An idealized pathway to return to the balanced anthropogenic P flow would require the mean phosphorus use efficiency (the ratio of harvested to input P) of aquaculture to be increased from a current value of 20% to at least 48% by 2050a big challenge.

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FAO's statistic data and sustainability of fisheries and aquaculture: Comments on Pauly and Zeller (2017)

Cited by 48 publications

References 15 publications

The economics of fishing the high seas

The economics of fishing the high seas

Out of Sight, But Within Reach: A Global History of Bottom-Trawled Deep-Sea Fisheries From >400 m Depth

The shift of phosphorus transfers in global fisheries and aquaculture

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