¿Hacia dónde va la acuicultura de equinodermos en América Latina? Potencial, retos y oportunidades.

Sonnenholzner-Varas, Jorge-I.

doi:10.15517/rbt.v69isuppl.1.46393

Cited by 3 publications

(3 citation statements)

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“…Sea cucumbers play an important role in marine ecosystems (Purcell et al, 2016), and present outstanding commercial value throughout the world (Purcell et al, 2018), however little is known about their populations in Brazil (Mendes et al, 2006;Ponte & Feitosa, 2019;Souza Jr. et al, 2017;Ventura et al, 2013). The greed for these high priced-organisms has led to intense capture in more than 70 Countries, threatening the populations of various species around the planet (Purcell et al, 2013;Purcell et al, 2023), including Latin America (Conand, 2018;Sonnenholzner, 2021).…”

Section: Introductionmentioning

confidence: 99%

Population survey of Holothuria (Halodeima) grisea (Aspidochirotida: Holothuriidae) at its limit of geographic distribution in the Western South Atlantic

Sabino Rupp,

Cacciatori Marenzi,

Ventura de Souza

et al. 2024

Rev. Biol. Trop.

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Introduction: The sea cucumber Holothuria (Halodeima) grisea Selenka, 1867 is a common echinoderm in intertidal regions along the Brazilian coast, which recently became the focus of unreported and unregulated fisheries. This study was carried out in sandy-rocky substrates at Armação do Itapocoroy, Penha, Santa Catarina (26o47’ S; 48o36’ W), near its southern limit of geographic distribution. Objective: To determine the densities (individuals*m-2) of Holothuria (H.) grisea within a spatial-temporal perspective as well as to determine biometric and growth characteristics of the population. Methods: Two-meter wide transects perpendicular to the coastline were carried out in winter and spring 2019 and in summer and spring 2020, in periods of spring low-tides. In each sampling occasion the total number of specimens of H. grisea were determined, and a group of 90 organisms was submitted to in situ biometrics (weight, length and width), and immediately returned alive to their habitat. Results: The densities of H. (H.) grisea were significantly higher in the subtidal sector and lower in the upper intertidal sector with no indication of significant differences among sampling campaigns. Depth was the primary factor explaining the observed density patterns and rugosity of the substrate was secondary but also important. The body length ranged from 5.2 to 22.5 cm, whereas the weight varied from 6.0 to 230 g. The mean and modal lengths were 12.54 and 13 cm, respectively. Approximately 75 % of the population sampled was between 10 and 14 cm and the average weight was 60 g. Estimates from von Bertalanffy growth function indicate that the youngest sea cucumber was one year-old, and the oldest had approximately two and a half years. Conclusions: This is the first study to determine biometric parameters for H. (H.) grisea in southern Brazil and the first one to estimate growth and age estimates for a wild population of this species. The densities recorded in the present study were lower than those previously reported for this region, suggesting anthropic influence.

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Section: Introductionmentioning

confidence: 99%

Population survey of Holothuria (Halodeima) grisea (Aspidochirotida: Holothuriidae) at its limit of geographic distribution in the Western South Atlantic

Sabino Rupp,

Cacciatori Marenzi,

Ventura de Souza

et al. 2024

Rev. Biol. Trop.

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“…La acuicultura se ha convertido en una de las industrias de producción de alimentos de más rápido crecimiento en América Latina (20%) y el mundo (7%) por año; contribuyendo significativamente a la seguridad alimentaria mundial y este crecimiento se ha extendido continuamente durante más de dos décadas (1,2). Después de los peces, los crustáceos se sitúan como el segundo producto de la acuicultura mundial.…”

Section: Introductionunclassified

“…1 Comercial El Gordillo, Santo Domingo de los Tsáchilas, Ecuador 2. Valencia-Avícola, Valencia, Ecuador 3.…”

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Respuesta biológica, nutricional y hematoinmune en juveniles Cherax quadricarinatus (Decapoda: Parastacidae) alimentados con mezcla probiótica

et al. 2024

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Objetivo: Evaluar indicadores biológicos, nutricionales y hematoinmunes en juveniles Cherax quadricarinatus que fueron cultivados y alimentados con una mezcla de probióticos. Materiales y métodos: Un diseño completamente aleatorizado (DCA) con seis tratamientos: 0 (control), 1×102 µL, 2×102 µL, 3×102 µL, 4×102 µL y 5×102 µL de mezcla de probióticos (Bacterol Shrimp Forte), con tres repeticiones cada una; se utilizaron 18 tanques experimentales de diametro 1.7 m y área de 2.26 m2, con una densidad de 20 juveniles (0.95±0.10 g y 7.78±0.77mm) por tanque durante 60 días. Se midieron los parámetros biológicos (peso, longitud, aumento de peso, aumento de peso, tasa de crecimiento específico, aumento de longitud, aumento de longitud y supervivencia), nutricionales (conversión alimenticia, eficiencia alimenticia y eficiencia proteica) y hematoinmune (total de hemocitos, hemocitos diferenciales, tasa fagocítica, superóxido dismutasa y estrés hipóxico). Resultados: Para los indicadores biológicos, los mejores resultados (p<0.05) se obtuvieron al utilizar 4×102 µL del probiótico (peso final: 9.11 g; longitud final: 68.95 mm; tasa de crecimiento específico: 3.74). En cuanto a los parámetros nutricionales, los mejores resultados se obtuvieron con 3×102 µL (conversion alimenticia: 1.09, eficiencia alimenticia: 0.91 y eficiencia proteica: 2.61); aunque no hubo diferencias entre 3×102 y 4×102 µL. Para la respuesta hematoinmune, hubo diferencias (p < 0.05) para todos los indicadores en estudio, con un mejor desempeño para 4×102 µL de la mezcla de probióticos. Conclusiones: La mezcla de probióticos induce la respuesta hematoinmune, biológica y nutricional con la mejor respuesta para concentraciones de 3×102 µL y 4×102 µL.

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Sea Cucumbers (Echinodermata: Holothuroidea) from Santa Catarina Coast, Southern Brazil, with Notes on Their Abundance and Spatial Distribution

Rupp

Marenzi

Souza

et al. 2023

Journal of Shellfish Research

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¿Hacia dónde va la acuicultura de equinodermos en América Latina? Potencial, retos y oportunidades.

Cited by 3 publications

References 56 publications

Population survey of Holothuria (Halodeima) grisea (Aspidochirotida: Holothuriidae) at its limit of geographic distribution in the Western South Atlantic

Population survey of Holothuria (Halodeima) grisea (Aspidochirotida: Holothuriidae) at its limit of geographic distribution in the Western South Atlantic

Respuesta biológica, nutricional y hematoinmune en juveniles Cherax quadricarinatus (Decapoda: Parastacidae) alimentados con mezcla probiótica

Sea Cucumbers (Echinodermata: Holothuroidea) from Santa Catarina Coast, Southern Brazil, with Notes on Their Abundance and Spatial Distribution

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