Occurrence of the snowy grouper, <i>Hyporthodus niveatus</i>
 (Valenciennes, 1828), in Argentine waters

Trobbiani, Gastón Andres; Galván, David Edgardo; Cuestas, Mariano; Irigoyen, Alejo Joaquín

doi:10.1111/jai.12350

Cited by 10 publications

(8 citation statements)

References 8 publications

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“…Second, the San Jorge Gulf (SJG) and adjacent waters are within the ecotone of two regional marine biogeographic zones in the Southwest Atlantic (-43° to -46° S), that receive species from subtropical and sub-Antarctic origins (Balech and Erlich, 2008), influencing also fish species composition in the bycatch (Bovcon 2016;Gongora et al, 2020;Figure 1a). Third, since the 1990s, the study area experienced the influx, range expansion, and establishment of 24 temperate-warm fishes from the Argentine Biogeographic Province, circumtropical and Brazilian areas that coincide with an increasing sea surface temperature north of -48° S, suggesting that a tropicalisation of fish assemblages would have started in these areas (Bovcon et al, 2011, 2016, Galván et al, 2005Góngora et al, 2009;Trobbiani et al, 2013;Venerus et al, 2006).…”

Section: Discussionmentioning

confidence: 99%

Fish functional diversity as an indicator of resilience to industrial fishing in Patagonia Argentina

Diaz¹,

Bovcon²,

Cochia³

et al. 2021

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The relationship between fish functional diversity and fishing levels at which its baselines shift is important to identify the consequences of fishing in ecosystem functioning. For the first time, we implemented a trait-based approach in the Argentine Patagonian sea to identify the vulnerability and spatiotemporal changes in functional diversity of fish assemblages bycatch by a trawling fleet targeting the Argentine red shrimp Pleoticus muelleri (Spence Bate, 1888) between 2003 and 2014. We coupled seven fish trophic traits to a reconstructed fish assemblage for the study area and bycatch and evaluated changes in fish species richness and four complementary functional diversity metrics [functional richness, redundancy, dispersion, and community trait values] along with fishing intensity, temporal use, latitudinal location, and depth of fishing grounds. Resident fishes larger than 30 cm in TL, with depressed and fusiform bodies, intermediate to high trophic levels, and feeding in shallow benthic, benthodemersal, and benthopelagic areas were vulnerable to bycatch. Fish assemblages exhibited a low functional trait redundancy, likely related to species influxes in a biogeographic ecotone with tropicalisation signs. Significantly increases in fish trait richness and dispersion polewards and with depth suggested new functional roles in these grounds, matching trends in community body size, reproductive load, maximum depth, trophic level, and diet breadth. Finally, a temporal increase in fish species and functional trait removal in fishing grounds led to trait homogenisation since the first year of trawling. The identified tipping points in temperate fish functional trait diversity highlight trait-based approaches within ecosystem-based fisheries management.

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Section: Discussionmentioning

confidence: 99%

Fish functional diversity as an indicator of resilience to industrial fishing in Patagonia Argentina

Diaz¹,

Bovcon²,

Cochia³

et al. 2021

Preprint

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show abstract

“…The influence of a tongue of the Brazil Current may explain how tropical or sub‐tropical species were collected substantially further south than their usual area of occurrence (Góngora, Bovcon, & Cochia, ; Bovcon, Cochia, Góngora, & Gosztonyi, ; Trobbiani, Galván, Cuestas, & Irigoyen, ). Scomberesox scombroides might have reached the coastal waters of Patagonia as a consequence of a north‐south migration influenced by the warm waters of the Brazil Current.…”

Section: Discussionmentioning

confidence: 99%

New record of Scomberesox scombroides (Richardson, 1843) (Beloniformes: Scomberesocidae) in southwestern waters of Patagonia and an update on its geographic distribution on the Argentine continental shelf

et al. 2016

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“…In recent years, numerous temperate-subtropical habitat species have been recorded in Patagonian coastal waters (Bovcon, Cochia, Góngora, & Gosztonyi, 2011;Góngora, Bovcon, & Cochia, 2009;Trobbiani, Galván, Cuestas, & Irigoyen, 2014). These records could be explained by increased sampling efforts, and/or climate change as the main influencing factor on the water temperatures.…”

Section: Discussionmentioning

confidence: 99%

Occurrence of the blackfin goosefish, Lophius gastrophysus (Miranda Ribeiro, 1915), in coastal waters of the San Jorge Gulf, Patagonia, Argentina

et al. 2016

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Occurrence of the snowy grouper, Hyporthodus niveatus (Valenciennes, 1828), in Argentine waters

Cited by 10 publications

References 8 publications

Fish functional diversity as an indicator of resilience to industrial fishing in Patagonia Argentina

Fish functional diversity as an indicator of resilience to industrial fishing in Patagonia Argentina

New record of Scomberesox scombroides (Richardson, 1843) (Beloniformes: Scomberesocidae) in southwestern waters of Patagonia and an update on its geographic distribution on the Argentine continental shelf

Occurrence of the blackfin goosefish, Lophius gastrophysus (Miranda Ribeiro, 1915), in coastal waters of the San Jorge Gulf, Patagonia, Argentina

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