Caprella ungulina Mayer, 1903 (Amphipoda: Caprellidae): epizoo de Paralomis granulosa (Hombron & Jacquinot, 1846) (Decapoda: Lithodidae) en aguas de Magallanes, Chile

New epibiotic association in the deep-sea: the amphipod Caprella ungulina and the Patagonian lobsterette Thymops birsteini in the South-western Atlantic

“…Accordingly, Medina et al . (2017) found individuals of C. ungulina attached to Paralomis granulosa , a false king crab restricted to shallow waters, as all having eyes. Our finding is also consistent with the idea posed by Sittrop & Serejo (2006), since all caprellids were collected at great depth (below 1087 m) and eyes were not observed in any of them.…”

“…Further evidence on the type and strength of the symbiotic relationship of C. ungulina and T. birsteini is provided by the differential distribution of caprellids on the body of their host. In agreement with our findings (31% of caprellids on mouthparts), previous works showed that C. ungulina attach mainly to mouthparts, antennas and antennules of their basibionts (see Table 4; Takeuchi et al ., 1989; Baldinger, 1992; Medina et al ., 2017). Cadien (2015) proposed that the high abundance of C. ungulina on these appendages is the product of a kleptoparasitic relationship, in which the caprellid can steal food as it is consumed by the decapod species, producing a nutritional benefit to C. ungulina at the expense of the basibiont crustacean.…”

“…Its biology remains poorly known, but it is commonly reported as an epibiont of a variety of decapod crustaceans in deep waters (Takeuchi et al ., 1989). Particularly in the South-western Atlantic, C. ungulina was recorded in association with Paralomis formosa Henderson, 1888 and P. granulosa (Hombron & Jacquinot, 1846) (see Sittrop & Serejo, 2006 and Medina et al ., 2017, respectively). The Patagonian lobsterette T. birsteini (Decapoda: Nephropidae) distributes on the circalittoral and bathyal zones of Uruguay, Argentina, southern Chile, reaching the Malvinas (Falklands) and Georgias del Sur (South Georgia) islands and the Scotia Sea (see Spivak et al ., 2019 and references therein), at depths ranging from 150–2500 m, in cold waters between 2–3.5 °C (Laptikhovsky & Reyes, 2009).…”

“…During one of these surveys, we regularly found the skeleton shrimp Caprella ungulina Mayer, 1903 attached to the Patagonian lobsterette Thymops birsteini (Zarenkov & Semenov, 1972). The caprellid amphipod C. ungulina has a wide geographic distribution encompassing North and South America, Japan and South Africa, at depths ranging 50–1100 m (Griffiths, 1977; Wicksten, 1982; Takeuchi et al ., 1989; Baldinger, 1992; Sittrop & Serejo, 2006; Medina et al ., 2017). Its biology remains poorly known, but it is commonly reported as an epibiont of a variety of decapod crustaceans in deep waters (Takeuchi et al ., 1989).…”

Situación pesquera del centollón Paralomis granulosa , (Hombron & Jacquinot, 1846) (Decapoda: Lithodidae) en Magallanes, Chile y consideraciones para mejorar el futuro manejo de la pesquería

“…Salvo algunos estudios puntuales (Guzmán et al 2004;Alarcón et al 2007;Medina et al 2017), en los siguientes 20 años se produjo un vacío de información que no permitió diagnosticar y contar con información para el manejo, control y desarrollo sostenible de esta pesquería.…”