H2020Индивидуална стипендия2017–2020

SIFINS · Stable isotope signatures in dorsal fin spines as a non-invasive and non-lethal alternative to otoliths for reconstructing fish life and environmental history

„Хоризонт 2020“ — Действия „Мария Склодовска-Кюри“

Период: 2017-07-03 → 2020-12-14
Финансиране от ЕС: 170 122 €
Участници: 1
Схема: MSCA-IF-EF-CAR

Линиите свързват координатора с партньорите.

Накратко на български

Стабилните изотопи в гръбните перки на рибите, като при синия рибач, се анализират за проследяване на миграцията и средата им. Това помага за по-доброто управление на ресурсите и опазването на застрашените видове, без да се наранява рибата или да се намалява стойността ѝ.

Този кратък обзор е генериран от изкуствен интелект

Кратко обяснение, генерирано от езиков модел по текста на CORDIS. Оригиналът е по-долу.

Резултати накратко

Stable isotope signatures in dorsal fin spines as a non-invasive and non-lethal alternative to otoliths for reconstructing fish life and environmental history

Tunas often undertake large oceanic migrations crossing international jurisdictions or management boundaries during their lifetime, which makes the sustainable management of these species a complex and urgent challenge for scientists and of considerable policy and societal concern. The Atlantic bluefin tuna (Thunnus thynnus) is a well-known highly migratory species, and their long lifespan and high market value contribute to their vulnerability to overfishing and population collapse. As such it is essential to resolve juvenile migration pattern to effectively guide management of the resource for a long-term sustainability. Stable isotopes analysis preferentially performed in fish otoliths (ear stones) have been largely used in fish ecology, providing useful information about population dynamics, movement patterns, habitat use and connectivity. However, otolith removal is not practical for commercially valuable species like Atlantic bluefin tuna since it greatly affects the appearance of a fish diminishing their market value. The SIFINS project overall aims to investigate the ability of the dorsal fin spine bone (fin spine hereafter), in preserving isotopic signatures of ecological value as environmental proxies to infer migration patterns, habitat use, and other life history events of highly migratory tuna species. SIFINS uses the Atlantic bluefin tuna as a model species and sentinel of ocean health. The fin spine is also particularly attractive for rare and/or endangered species that cannot be sacrificed for their otoliths and a non-lethal alternative sampling method is preferred to complement otolith analysis promoting its applications in conservation issues.We conclude that there has been deviations from planned tasks and deliverables. However, it has definitely allowed Luque to acquire new competencies and skills, assist her in developing new long-term collaborations with high level researchers working in several institutions around the world, and has reinforced her career as a highly competitive, well-connected and influential scientist. Besides, it provided a competent tool to the Fisheries Research Community working on endangered and/or protected species, opening new research avenues to improve their management and conservation.

Текст от CORDIS, на английски · Данни: CORDIS, © Европейски съюз

Цел на проекта

The use of stable isotopes as powerful ""natural tags"" for reconstructing fishes’ environmental and life history, has been largely restricted to ear bones or otoliths. The extraction of otoliths requires sacrificing the fish, which is not allowed for endangered species, and greatly affects the appearance of a fish, which is non-practical for commercially valuable species as it can diminish their market value. The aim of the SIFINS project is to investigate tuna dorsal fin spines as a non-invasive and non-lethal alternative to otoliths for reconstructing environmental and life histories of individual fishes. Using SI signatures in fin spines of key highly migratory temperate and tropical tunas, SIFINS proposes a novel multispecies and interdisciplinary approach integrating the fields of chronology, chemistry and population dynamics research. SIFINS will provide (i) a more refined understanding of the movement and population-stock structure of tunas across their distribution range and (ii) a new and original perspective of stable isotope chemistry research in fishes, particularly relevant to support the management of endangered and commercially valuable species under the EU Biodiversity and Fisheries policies priorities. The results of the project will promote EU excellence in marine fish population dynamics, likely to be of increasing interest in the future due to climate and human-induced change to marine environments. The applicant’s research and professional skills complement the host infrastructure and research team expertise, and their capacity to manage fellowships/grants and train researchers for the successful outcome of all aspects of the project including training, dissemination of results, and outreach activities. SIFINS will contribute to the researcher’s professional career development putting the fellow in an optimal position to become a leading European scientist in this interdisciplinary research field after a maternity leave career break.""

Оригинален текст от CORDIS (на английски).

Участници

FUNDACION AZTI - AZTI FUNDAZIOA · SUKARRIETAКоординаторИспания