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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

What fisher diets reveal about fish stocks

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Author(s):
Lopes, Priscila F. M. [1] ; Hanazaki, Natalia [2] ; Nakamura, Elaine M. [2] ; Salivonchyk, Svetlana [3] ; Begossi, Alpina [4]
Total Authors: 5
Affiliation:
[1] Univ Fed RioGrande Norte, Dept Ecol, Natal, RN - Brazil
[2] Univ Fed Santa Catarina, Dept Ecol & Zool, Ctr Biol Sci, Campus Univ, Sala 009 Bloco C Corrego Grande, BR-88040900 Florianopolis, SC - Brazil
[3] Natl Acad Sci Belarus, Inst Nat Management, Minsk - Byelarus
[4] UNICAMP SP, CAPESCA, NEPA, Rua Albert Einstein 291, BR-13083852 Campinas, SP - Brazil
Total Affiliations: 4
Document type: Journal article
Source: AMBIO; v. 50, n. 10, SI, p. 1851-1865, OCT 2021.
Web of Science Citations: 0
Abstract

Tracking fish consumption could provide additional information on changes to fish stocks, one of the planet's main protein sources. We used data on seafood consumption in fishing villages in Brazil over time to test for changes in: species richness, diversity, and composition, fish size and trophic levels, consumption of endangered species, and functional diversity (namely, species with different behavioral and habitat preferences). Our results demonstrate the potential to include this additional data source to complement fisheries data, especially in data-poor countries. With respect to Brazil specifically, we identified a decrease in both the average trophic level and size of the species consumed. While the consumption of endangered species had always been low, most of these species changed over time, thereby suggesting that many, especially elasmobranchs, may have become rare on the plates. Although it may be hard to fully isolate cultural changes from biodiversity changes when it comes to analyzing consumption data, by examining diets it is possible to identify aspects worth investigating further, such as, whether the decrease in dietary trophic levels mirrors a decrease in environmental trophic levels. In places where fisheries data are either inexistent or limited, diet track surveys, such as household expenditure programs, can help trace the changes caused by fisheries in stocks and habitats. (AU)

FAPESP's process: 18/22087-4 - Subsistence fishing and food security in coastal and Amazon riverine small-scale fisheries
Grantee:Alpina Begossi
Support Opportunities: Research Grants - Visiting Researcher Grant - Brazil
FAPESP's process: 14/24994-8 - Small-scale fishery at the coast of Brazil: biology and ethnobiology of target species
Grantee:Alpina Begossi
Support Opportunities: Research Grants - Visiting Researcher Grant - International
FAPESP's process: 14/16939-7 - Fishers and groupers [Epinephelus marginatus]: ecology, ethnoecology and food security in the Brazilian coast
Grantee:Alpina Begossi
Support Opportunities: Research Projects - Thematic Grants