Please use this identifier to cite or link to this item:
Files in This Item:
File SizeFormat 
absence sharks.pdf723,09 kBAdobe PDFView/Open
Title: Misidentification of bluefin tuna larvae: a call for caution and taxonomic reform
Authors: Puncher, Gregory Neils; Alemany, Francisco; Arrizabalaga, Haritz; Tinti, Fausto; Cariani, Alessia
Citation: REVIEWS IN FISH BIOLOGY AND FISHERIES, 2015, 25, 485-502
Abstract: The international effort to prevent the collapse of Atlantic bluefin tuna (BFT, Thunnus thynnus, Scombridae) stocks exemplifies the challenges associated with modern marine resource conservation. Rampant mismanagement, under-reporting and illegal, unreported and unregulated fishing led to decades of over-exploitation in the BFT fishery. Surveys of larval abundance in the Gulf of Mexico and the Mediterranean Sea have been used as a proxy for both spawning biomass and recruitment by researchers working to improve estimates of stock abundance. Recent genetic barcoding studies have revealed that species identification errors are common among larvae surveys that use morphology-based taxonomy alone. Misidentification of larvae can lead to uncertainty about the spatial distribution of a species, confusion over life history traits and population dynamics, and potentially disguise the collapse or recovery of localized spawning sites. In an effort to identify the source of these errors, we review several weaknesses in modern morphology-based taxonomy including demographic decline of expert taxonomists, flawed identification keys, reluctance of the taxonomic community to embrace advances in digital communications and a general scarcity of modern user-friendly materials. Recent advances in molecular techniques useful for specimen identification and population studies are discussed at length. We advocate a more constructive integration of morphology-based taxonomy and barcoding in order to add confidence to larval surveys and to strengthen associated fisheries management.
Issue Date: 2015
Publisher: SPRINGER
Type: Review
Language: English
DOI: 10.1007/s11160-015-9390-1
ISSN: 0960-3166
E-ISSN: 1573-5184
Funder: MARES Joint Doctorate programme \[FPA 2011-0016]
Appears in Publication types:Artículos científicos

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.