First record of the namorado sandperch, Pseudopercis numida Miranda-Ribeiro, 1903 (Pinguipedidae; Osteichthyes), in Argentine waters

The Reef-fish Fauna of the Northern Patagonian Gulfs, Argentina, South-western Atlantic

“…Nototheniidae and Pinguipedidae were the two most important families, repre- sented by three species each; and the genera Patagonotothen and Pseudopercis were the most important genera, with three and two species, respectively. However P. numida was represented by only one fish speared in Nuevo Gulf [12].…”

“…Unexpected was the occurrence of P. numida c. 1600 km southwards of its previously reported limit (widely discussed in [12]). The lists of fishes from San Matías Gulf, Cabo Raso and San Jorge Gulf are incomplete descriptions of the reef fish assemblages from those sites.…”

“…Boulevard Brown 2915, (U9120ACF) Puerto Madryn, Chubut, Argentina; Tel: (+54) (2965) 45-1024/0401/1301; Fax: (+54) (2965) 45-1543; E-mail: galvan@cenpat.edu.ar Despite the scientific and cultural relevance of the Northern Patagonian reef-fish assemblages, their study has received little attention. There are only a handful of published studies that report the occurrence of particular and/or rare species on shallow rocky reefs within San José, Nuevo and San Matías gulfs (Pagrus pagrus Linné and Diplodus argenteus (Valenciennes): [9]; Mycteroperca marginata (Lowe): [10]; Seriola lalandi Valenciennes: [11]; and Pseudopercis numida Miranda-Ribeiro: [12]), and one study that describes the fish assemblage in one particular reef from San Matías Gulf [13]. Moreover, descriptions of the distributional ranges for Argentinean marine fishes were mainly based on individuals caught by trawling in the inner-shelf [1,[14][15][16][17], excluding shallow (<20 m depth) and rocky areas.…”

First records of unusual marine fish distributions—can they predict climate changes?

“…Venerus et al (2007) point out that this new record represents an addition to a list of recently reported range expansions of warmtemperate reef fish species into higher latitudes within the northern Patagonian gulfs of Argentina of the dusky grouper Epinephelus marginatus and the silver porgy, Diplodus argenteus . Venerus et al (2007) emphasizes that the mechanisms by which these species appeared in the North Patagonian Gulfs Ecoregion (sensu Sullivan Sealey & Bustamante, 1999) are unknown. Venerus et al (2007) continue with the consideration that if the new records just reflected increased sampling effort, one would expect to find both warm-temperate and temperate species incrementing their distributional ranges.…”

“…In Argentinean waters Venerus et al (2007) recently made the first record of the namorado sandperch, Pseudopercis numida, in a shallow rocky reef located near Pardelas Beach (42º38 0 S 64º16 0 W), Nuevo Gulf, Argentina, about 1600 km southwards of the previously reported limit. Venerus et al (2007) point out that this new record represents an addition to a list of recently reported range expansions of warmtemperate reef fish species into higher latitudes within the northern Patagonian gulfs of Argentina of the dusky grouper Epinephelus marginatus and the silver porgy, Diplodus argenteus .…”