7b0e2256-9e7a-4f31-b1ca-af854d06a07c Ilaria Biagiotti CNR - IRBIM Ilaria.biagiotti@cnr.it Giovanni Canduci CNR - IRBIM giovanni.canduci@cnr.it 2025-05-12T14:21:05 ISO 19139 1.0 WGS84 Pelagic ecosystem monitoring of the key species of Middle Trophic Level in the Ross Sea Marine Protected Area 2023-04-24 https://antarcticdatacenter.cnr.it/geonetwork/srv/api/records/7b0e2256-9e7a-4f31-b1ca-af854d06a07c The Middle Trophic Level of the Ross Sea is still not well known but it mainly characterized by two species of Krill: Euphausia superba, Euphausia Crystallorophias. These species are a key food source for a wide variety of marine birds and mammals in the Ross Sea. For this reason, it's necessary to improve the knowledge on abundance and spatial distribution of MTL species, and their interconnection with environmental parameters to understand the main drivers of the reproductive success and migrations of these species. In this project, an acoustic survey, a synoptic net sampling and a CTD/XBT samplings were carried out following the standard protocols indicated by CCAMLR. Acoustic monitoring was performed at five frequencies: 38, 70, 120, 200 and 333 kHz. Targeted net samplings were performed to validate the preliminary species allocation of the aggregations observed on the echosounder screen. Biometric measures of krill samples was made on board and samples were taken for further analysis. CTD and XBT data was collected and elaborated to characterize water masses and to study the possible influences of the distribution of the main oceanographic parameters on MTL species. The main objective of the project is to improve knowledge on the abundance and spatial distribution of the two krill species that characterize the pelagic ecosystem of the Ross Sea (Antarctic krill and ice kril) and their interconnection with environmental parameters. Iole Leonori CNR - IRBIM iole.leonori@cnr.it Giovanni Canduci CNR - IRBIM giovanni.canduci@cnr.it Ilaria Biagiotti CNR - IRBIM ilaria.biagiotti@cnr.it Giordano Giuliani CNR - IRBIM giordano.giuliani@cnr.it Andrea De Felice CNR - IRBIM andre.defelice@cnr.it Ilaria Costantini CNR - IRBIM ilaria.costantini@cnr.it Ilaria BIagiotti CNR - IRBIM ilaria.biagiotti@cnr.it https://antarcticdatacenter.cnr.it/geonetwork/srv/api/records/7b0e2256-9e7a-4f31-b1ca-af854d06a07c/attachments/D20220122_T185023_Image.jpg https://antarcticdatacenter.cnr.it/geonetwork/srv/api/records/7b0e2256-9e7a-4f31-b1ca-af854d06a07c/attachments/D20220116_T015617_Image.jpg https://antarcticdatacenter.cnr.it/geonetwork/srv/api/records/7b0e2256-9e7a-4f31-b1ca-af854d06a07c/attachments/Survey%20ROSSKRILL-22.jpg https://antarcticdatacenter.cnr.it/geonetwork/srv/api/records/7b0e2256-9e7a-4f31-b1ca-af854d06a07c/attachments/TMNX7124.JPG Ross Sea SCAR Gazetteer of Antarctica 2021-01-01 geonetwork.thesaurus.external.theme.scar_gazetteer_multi GEMET - INSPIRE themes, version 1.0 2008-01-01 geonetwork.thesaurus.external.theme.httpinspireeceuropaeutheme-theme ECOLOGICAL DYNAMICS POPULATION DYNAMICS EUPHAUSIIDS (KRILL) ANIMAL ECOLOGY AND BEHAVIOR SPECIES/POPULATION INTERACTIONS GCMD - Science Keywords 2015-01-01 geonetwork.thesaurus.external.theme.gcmd-sciencekeywords Acoustic survey, marine acoustics IT/PNRA GCMD - Providers 2023-07-24 geonetwork.thesaurus.external.theme.thesaurus ROSSKRILL PNRA18_00276 PNRA project 2024-03-18 geonetwork.thesaurus.external.theme.PNRAproject   Creative-Commons CC BY-NC-SA 4.0         XXXVII 1 biota oceans 166.00 180.00 -77.00 -70.00 2022-01-14 2022-01-26 CSV 1 https://antarcticdatacenter.cnr.it/geonetwork/srv/api/records/7b0e2256-9e7a-4f31-b1ca-af854d06a07c/attachments/Acoustic%20Survey_2022.CSV WWW:DOWNLOAD-1.0-http--download Acoustic%20Survey_2022.CSV Grid of the acosutic survey carried out in 2022 COMMISSION REGULATION (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services 2010-12-08 This data set is conformant with the INSPIRE Implementing Rules for the interoperability of spatial data sets and services true