Santiago de Compostela, Thursday 21 of March of 2024. the Spanish National Research Council (CSIC), that through the group of Ecoloxía Marine Integraof the (INMARE) of the Institute of Marine Research (IIM-CSIC, Vigo), lidera a liña of research on the ecoloxía spatial of the organisms marine in the Deck National. of the Illas Atlánticas of Galicia ( PNMTIAG), is the obter information importante on the papel of the illas in the connectivity ecolóxica of the ray mosaica ( Raja unduluntil ) .
in the último work scientific published the resultaof the destas research, the team of research informou of the existence of dimorfismo sexual in the use of the espazo and of the resources: the femias that pasan menos tempo dentro of the límites of the Deck teñen a nicho isotópiwith more amplo. to the resto of the exemplares of the population.
These research are the bring information importante for comprender the papel of the PNMTIAG in the ecoloxía spatial of the sharks and rays that habitan the their waters, information fundamental for the Deck deseña tools of management and conservation adecuaof the the this group taxonómiwith especially vulnerable.
“Estes results arroxan luz on the papel of the PNMTIAG in the connectivity ecolóxica of the especies of elasmobranchs of the nosas cousas; pero aínof the quedan moitas preguntas without resposta. Afortunadamente, this liña of research ten continuidade through the project CONECTEE, financiaof the by the programme Projects of Research Scientific of the Parques Nacionais (Ministerio for the Transición Ecolóxica and the Challenge Demográfico). Dentro deste project ampliamos the nosa network of receptores acústicos to the resto of the illas that conforman the Deck National and areas adxacentes for ter a imaxe more completa of the patróns of movemento of the community of elasmobranchs that habitan the their waters. In addition, the work compleméntase with the mostraxe xenética with aim of identify different unidades of population asociaof the atheir patróns of distribución”, indica Alexandre Alonso (IIM-CSIC), researcher lead of the CONECTEE.
the study, cuxos results are publicaof the in the journal Marine Ecology Progress Series , realizouse combinanof the the acoustic telemetry underwater and the análise of composición isotópica for comprender mellor the patróns of movemento of the raio mosaiwith in the area of the Deck.
“in the archipelago of the Illas Cíes of the PNMTIAG instalouse a network of acoustic telemetry formaof the by 28 estacións equipaof the with receptores acústicos submarinos. Between 2019 and 2021 were capturaof the a total of 98 individuals of Raja unduluntil , tagged cun transmisor acústiwith and tomanof the a mostra of aleta for the análise of isótopos estables of carboin the and nitróxein the ” , explica Alexandre Alonso Fernández, of IIM-CSIC and director. researcher of the projects in the that enmarca this work.
“the femias that pasan menos tempo in the waters of the Deck National are expostas the a greater diversidade of resources and presas of different niveis tróficos and/or that habitan en ambientes different. This comportamento favorece the connectivity ecolóxica the nivel poboacional, fundamental for manter a population sa. Neste sentido, the women menos residentes xogan a papel fundamental in the connectivity funcional to the facilitar the transfer of materia and enerxía dentro and fóra of the Deck”, explica the team of research, integraof the by researchers of IIM-CSIC and of the University of Vigo.
“These research are the ser determinantes for, by a banda, obter information on the patróns of use spatial of the raios in the Deck, that could ser useful for suxerir areas of especial protección. By outra banda, é a claro exemplo of the utilidade of combinar different tools of research dentro dun team multidisciplinar, integranof the neste caso the use of the acoustic telemetry and the análise of isótopos estables for estudar the ecoloxía spatial and the aproveitamento of the resources naturais. ” destaca Alexandre Alonso Fernández, researcher of IIM-CSIC.
the estuof the was financiaof the by thes projects TAC, DESTAC and IGENTAC with the collaboration of the Biodiversity Foundatione, of the Ministerio for the Transición Ecolóxica and the Challenge Demográfiwith (Goberin the of Spain), through the programme Pleamar, co-funded by the Marítima European. Fonof the and fishing (EMFF). the three tiveron the Alexandre Alonso Fernández (IIM-CSIC) the researcher lead.
This work is, á its vez, related with outros projects of research. By exemplo, Andreu Blanco, co-author of the publicación, aplicou the análise of isótopos in the estuof the of the papel of the áreas marine protexiof the in the ecoloxía of different especies en projects previous the ORGANIZE (Programme of Axuof the of Apoio á Etapa of Training osdoutoral ). of the Government of Galicia) or funN&Co (Government of Galicia).