Selección dietaria de Tegula atra (Lesson, 1830) como una aproximación de preferencia sobre distintas especies de macroalgas en el sur de Chile

Pinochet, Ramona; Soto, Juan Carlos; Palacios, Mauricio; Oyarzún, Sylvia

doi:10.4067/s0718-686x2018000300051

Cited by 5 publications

(6 citation statements)

References 21 publications

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“…T. atra graze mainly on brown algae such as Macrocystis pirifera and other algae such as Ulva sp. (Chlorophyta), and Mazzaella laminaroides (Rhodophyta) (Pinochet et al, 2018).…”

Section: Resultsmentioning

confidence: 99%

Biological control of incrusting organisms and sediments in Chilean oyster cultures

et al. 2022

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The oyster culture has the incrusting organism as problem for production, in this context, it evaluated as biological control against incrusting organism and sediments the introduction of gastropod Tegula atra (Lesson, 1830) in Chilean oysters (Triostrea chilensis Phillippi, 1844) cultures in conditions of starvation presence and absence located in floating cages and bottom cultures. The predation and mechanic effect on T. atra grazing generated a decreasing in seven days of 19.8% and 13.7% of incrusting organisms in cage culture and bottom sediments by effects of gastropods without starvation respectively. Whereas it had a decrease of 12.6% and 11.4% of incrusting organisms in cage culture and bottom sediments by effects of gastropods with starvation respectively. The incrusting organism removed were mainly algae, colonial ascidia, polychaeta, bryozoan and small crustaceans.

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“…T. atra graze mainly on brown algae such as Macrocystis pirifera and other algae such as Ulva sp. (Chlorophyta), and Mazzaella laminaroides (Rhodophyta) (Pinochet et al, 2018).…”

Section: Resultsmentioning

confidence: 99%

Biological control of incrusting organisms and sediments in Chilean oyster cultures

et al. 2022

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“…and in the subtidal associated with holdfasts of Lessonia trabeculata and Durvillaea sp. (Veliz and Vásquez, 2000;Pinochet et al, 2018). Diloma nigerrima is found in intertidal rock pools and on holdfasts of L. berteroana throughout its entire life cycle (Veliz and Vásquez, 2000;Zagal and Hermosilla, 2007) and can be found in kelp drying areas together with T. atra and S. scurra.…”

Section: Proxies For the Identification Of Alga Use In Prehistorymentioning

confidence: 99%

Marine invertebrates as proxies for early kelp use along the western coast of South America

Alcalde,

Flores,

Guardia

et al. 2023

Front. Earth Sci.

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Coastal societies have lived at the seaward edge of the Atacama Desert since at least 12,000 years ago. Kelp forest ecosystems provide evidence for important subsistence activity along the entire Chilean coast through fishing and gathering. Despite their importance, especially in hyperarid contexts with limited plant abundance, there is scarce evidence of kelp in archaeological contexts, hampering the study of kelp use in the past. In the present study, we use the presence of small marine invertebrates, inhabitants of stipes and holdfasts of macroalgae, as proxies that indicate past kelp presence. We analyze samples of three species of snails (Tegula atra, Tegula tridentata, and Diloma nigerrima) and one limpet (Scurria scurra) from nine archaeological sites dated between 7,000 and 500 cal years before present located around the area of Taltal (25°Lat S). Modern samples of these species were collected to reconstruct the size of fragmented archaeological shells and subsequently estimate the size of harvested kelps. Through this approach, we estimated the size and relative abundance of kelp used by coastal groups that inhabited the southern part of the Atacama Desert for around 6,500 years. Our results are a contribution to the scarce information on the presence and use of kelp in the prehistory of the Americas and contribute to comparative perspectives with other areas of the world where the use of kelp by humans in the past has already been explored.

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“…The intertidal zone of this locality is conditioned by the existence of cliffs with a narrow Lessonia berteroana (formerly Lessonia nigrescens) belt that varies between 0.5 and 1.0 m. Among the inter-disk spaces, nine taxa have been reported (two algae and seven invertebrates). The algae present correspond to calcareous with 66% and Corallina sp with 1% [11]. The fauna associated with this environment mainly comprises Fissurella sp and Chiton sp, followed by Actinia and H. helianthus.…”

Section: Introductionmentioning

confidence: 97%

“…T. atra has been observed associated with different species of macroalgae of the order Laminariales. In northern Chile, T. atra is found in intertidal environments next to Lessonia berteroana and, in subtidal areas, next to Lessonia trabeculata [11].…”

Section: Introductionmentioning

confidence: 99%

Herbivore Fish as Sustainable Alternative for Nutrition Security: Food Habits and Nutritional Composition of the Acha Fish (Medialuna Ancietae) in Northern Chile.

Lozano‐Muñoz

Giorgio

Wacyk

et al. 2021

Preprint

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Sustainability in aquaculture is a necessity of the future, not only as the most promising means of supplying the protein that the world will require to feed its growing population but to offer needed conservation of the world’s ocean resources. The use of wild fish inputs in farm-raised fish outputs has been a primary concern of sustainability in aquaculture production. Herbivorous fish are more efficient convertors of protein into fish flesh. Species of the genus Medialuna fish have been reported as a fast-growing, short-lived species. The endemic Acha fish (Medialuna ancietae) in the Northern part of Chile is an over-exploited fish that has been associated with aquatic vegetation as a food source. We studied the eating habits and nutritional composition of M. ancietae. For this, we developed a reference collection of marine macroalga (epidermis and nutritional composition) observed in the diet of individuals of this species for the study of digestive material. More than 90% of the components found were marine macroalgae, indicating that M. ancietae is an herbivorous fish. Compared to non-herbivorous fish our results showed that most of the nutrients present in the Medialuna diet are found at much lower levels including n-3 long-chain polyunsaturated fatty acids (49.7%) and protein (13–60%). M. ancietae meat provides essential components of human nutrition with a significant protein content (18.99 ± 0.26%) and the presence of n-3 long-chain polyunsaturated fatty acids. Most fed aquaculture non-herbivorous species rely on wild-captured fish for these essential nutrients, while M. ancietae can obtain and has the ability to concentrate them from potentially cultivable macroalgae. M. ancietae has potential for a sustainable aquaculture production as a contribution to nutrition security and re-stocking of wild populations.

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Selección dietaria de Tegula atra (Lesson, 1830) como una aproximación de preferencia sobre distintas especies de macroalgas en el sur de Chile

Cited by 5 publications

References 21 publications

Biological control of incrusting organisms and sediments in Chilean oyster cultures

Biological control of incrusting organisms and sediments in Chilean oyster cultures

Marine invertebrates as proxies for early kelp use along the western coast of South America

Herbivore Fish as Sustainable Alternative for Nutrition Security: Food Habits and Nutritional Composition of the Acha Fish (Medialuna Ancietae) in Northern Chile.

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