Trophic ecology of Patagonian flounder Paralichthys patagonicus (Jordan, 1889) in the Argentine-Uruguayan Coastal Ecosystem
Food habits and diet composition of Patagonian flounder Paralichthys patagonicus(Jordan, 1889) were studied on the basis of stomach content analyses from 828 specimens (512females, 304 males, 12 unsexed) collected during 16 commercial cruises between February 2009 andApril 2010 in the...
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| Format: | Journal Article |
| Language: | English |
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Instituto Nacional de Investigación y Desarrollo Pesquero
2022
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| Online Access: | http://hdl.handle.net/20.500.11937/96610 |
| _version_ | 1848766178381529088 |
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| author | Troccoli, Gonzalo Milessi, Andrés Marí, Noemí Figueroa, Daniel De Wysiecki, Agustin |
| author_facet | Troccoli, Gonzalo Milessi, Andrés Marí, Noemí Figueroa, Daniel De Wysiecki, Agustin |
| author_sort | Troccoli, Gonzalo |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Food habits and diet composition of Patagonian flounder Paralichthys patagonicus(Jordan, 1889) were studied on the basis of stomach content analyses from 828 specimens (512females, 304 males, 12 unsexed) collected during 16 commercial cruises between February 2009 andApril 2010 in the Argentine-Uruguayan Coastal Ecosystem (34° S-41° S). A total of 272 stomachs(32.9%) contained food (184 females and 84 males), among which 20 prey taxa were identified. Themost important prey category was pelagic fish, primarily Argentine anchovy (Engraulis anchoita),followed by rough scad (Trachurus lathami). Evidence showed that females consumed a higher totalwet weight of prey compared to males. Results also suggested a specialised diet over E. anchoita,across all sex and size groups. The estimated trophic level for the population of P. patagonicuswas4.16. This study suggests that P. patagonicusis a tertiary piscivorous consumer of the trophic foodweb in the region, and reveals changes in the prey consumption compared with previous studies. |
| first_indexed | 2025-11-14T11:47:01Z |
| format | Journal Article |
| id | curtin-20.500.11937-96610 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-14T11:47:01Z |
| publishDate | 2022 |
| publisher | Instituto Nacional de Investigación y Desarrollo Pesquero |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-966102025-01-24T04:45:29Z Trophic ecology of Patagonian flounder Paralichthys patagonicus (Jordan, 1889) in the Argentine-Uruguayan Coastal Ecosystem Troccoli, Gonzalo Milessi, Andrés Marí, Noemí Figueroa, Daniel De Wysiecki, Agustin Food habits and diet composition of Patagonian flounder Paralichthys patagonicus(Jordan, 1889) were studied on the basis of stomach content analyses from 828 specimens (512females, 304 males, 12 unsexed) collected during 16 commercial cruises between February 2009 andApril 2010 in the Argentine-Uruguayan Coastal Ecosystem (34° S-41° S). A total of 272 stomachs(32.9%) contained food (184 females and 84 males), among which 20 prey taxa were identified. Themost important prey category was pelagic fish, primarily Argentine anchovy (Engraulis anchoita),followed by rough scad (Trachurus lathami). Evidence showed that females consumed a higher totalwet weight of prey compared to males. Results also suggested a specialised diet over E. anchoita,across all sex and size groups. The estimated trophic level for the population of P. patagonicuswas4.16. This study suggests that P. patagonicusis a tertiary piscivorous consumer of the trophic foodweb in the region, and reveals changes in the prey consumption compared with previous studies. 2022 Journal Article http://hdl.handle.net/20.500.11937/96610 10.47193/mafis.3512022010109 English http://creativecommons.org/licenses/by-nc-sa/4.0/ Instituto Nacional de Investigación y Desarrollo Pesquero fulltext |
| spellingShingle | Troccoli, Gonzalo Milessi, Andrés Marí, Noemí Figueroa, Daniel De Wysiecki, Agustin Trophic ecology of Patagonian flounder Paralichthys patagonicus (Jordan, 1889) in the Argentine-Uruguayan Coastal Ecosystem |
| title | Trophic ecology of Patagonian flounder Paralichthys patagonicus (Jordan, 1889) in the Argentine-Uruguayan Coastal Ecosystem |
| title_full | Trophic ecology of Patagonian flounder Paralichthys patagonicus (Jordan, 1889) in the Argentine-Uruguayan Coastal Ecosystem |
| title_fullStr | Trophic ecology of Patagonian flounder Paralichthys patagonicus (Jordan, 1889) in the Argentine-Uruguayan Coastal Ecosystem |
| title_full_unstemmed | Trophic ecology of Patagonian flounder Paralichthys patagonicus (Jordan, 1889) in the Argentine-Uruguayan Coastal Ecosystem |
| title_short | Trophic ecology of Patagonian flounder Paralichthys patagonicus (Jordan, 1889) in the Argentine-Uruguayan Coastal Ecosystem |
| title_sort | trophic ecology of patagonian flounder paralichthys patagonicus (jordan, 1889) in the argentine-uruguayan coastal ecosystem |
| url | http://hdl.handle.net/20.500.11937/96610 |