The Conservation and Management of Tunas and Their Relatives: Setting Life History Research Priorities

Resource type
Date created
2013
Authors/Contributors
Abstract
Scombrids (tunas, bonitos, Spanish mackerels and mackerels) support important fisheries in tropical, subtropical and temperate waters around the world, being one of the most economically- and socially-important marine species globally. Their sustainable exploitation, management and conservation depend on accurate life history information for the development of quantitative fisheries stock assessments, and in the fishery data-poor situations for the identification of vulnerable species. Here, we assemble life history traits (maximum size, growth, longevity, maturity, fecundity, spawning duration and spawning interval) for the 51 species of scombrids globally. We identify major biological gaps in knowledge and prioritize life history research needs in scombrids based on their biological gaps in knowledge, the importance of their fisheries and their current conservation status according to the International Union for Conservation of Nature Red List. We find that the growth and reproductive biology of tunas and mackerel species have been more extensively studied than for Spanish mackerels and bonitos, although there are notable exceptions in all groups. We also reveal that reproductive biology of species, particular fecundity, is the least studied biological aspect in scombrids. We identify two priority groups, including 32 species of scombrids, and several populations of principal market tunas, for which life history research should be prioritized following the species-specific life history gaps identified in this study in the coming decades. By highlighting the important gaps in biological knowledge and providing a priority setting for life history research in scombrid species this study provides guidance for management and conservation and serves as a guide for biologists and resource managers interested in the biology, ecology, and management of scombrid species.
Document
Published as
Juan-Jordá MJ, Mosqueira I, Freire J, Dulvy NK (2013) The Conservation and Management of Tunas and Their Relatives: Setting Life History Research Priorities. PLoS ONE 8(8): e70405. doi:10.1371/journal.pone.0070405
Publication title
PLoS ONE
Document title
The Conservation and Management of Tunas and Their Relatives: Setting Life History Research Priorities
Date
2013
Volume
8
Issue
8
Publisher DOI
10.1371/journal.pone.0070405
Copyright statement
Copyright is held by the author(s).
Scholarly level
Peer reviewed?
Yes
Language
Member of collection
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jose.pdf 4.35 MB