Egg-laying behaviour and intracapsular development of<i>Argobuccinum pustulosum</i>(Gastropoda: Ranellidae) in temperate waters at the South coast of Chile

Gallardo, Carlos S.; Haro, Daniela; Wagner, Carolina; Garrido, Orlando; Cañete, Juan I.

doi:10.1080/17451000.2012.693615

Cited by 11 publications

(12 citation statements)

References 29 publications

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“…The most pronounced protection derived from mothers, which remained on capsules throughout nearly the entire embryonic development, protecting and wiping them using their proboscises. Maternal care is a common feature among the Ranellidae (Laxton, 1971;Govan, 1995;Cavallaro et al, 2016) and aims to improve the survival rate of embryos in order to produce more and fitter offspring (Gallardo et al, 2012).…”

Section: Discussionmentioning

confidence: 99%

Reproductive behavior of the marine gastropod Charonia seguenzae (Aradas & Benoit, 1870) in captivity

Doxa¹,

Sterioti

Divanach³

et al. 2019

Medit. Mar. Sci.

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The reproductive behavior of the gastropod Charonia seguenzae (Aradas & Benoit, 1870) was studied through the description of 19 copulation and 21 egg laying events of 134 wild individuals. Findings in the present study regarding a part of the reproduction temperature range (20 to 23oC) and the demonstration of maternal care provided important information on their biology, behavior and ecology. Furthermore, observed polyandry by the females and collaborative care of embryonic sacks, were two aspects of the species reproductive biology that pose new questions both at ecological and evolutionary level.

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Section: Discussionmentioning

confidence: 99%

Reproductive behavior of the marine gastropod Charonia seguenzae (Aradas & Benoit, 1870) in captivity

Doxa¹,

Sterioti

Divanach³

et al. 2019

Medit. Mar. Sci.

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“…Gallardo et al (2012) indicates that in other subantarctic ranellid, Argobuccinum pustulosum, the encapsulated development lasts around 54-56 days (11-12ºC). Thus, the duration of encapsulated development in ranellids could be closely associated to the temperature of sea water showing a latitudinal pattern.…”

Section: Discussionmentioning

confidence: 99%

“…The stages were photographed and identified by comparison with embryo-larval morphology criteria applied to other Ranellidae species, such as Priene scabrum (Romero et al, 2003) and Argobuccinum pustulosum Gallardo et al, in press); particularly the terms pre-trocophore and pre-veliger Gallardo et al, 2012, were applied as used by these latter authors. Measurements of embryos and larvae (diameter, height or shell-length) were made using ProSeries Capture KIT MV™ (version 1.0 for Windows, produced by Cybernetic) coupled to a stereoscopic microscope.…”

Section: Spawning and Brooding Seasonmentioning

confidence: 99%

Encapsulated development, spawning and early veliger of the ranellid snail Fusitriton magellanicus (Roding, 1798) in the cold waters of the Magellan Strait, Chile

Cañete

Gallardo

Céspedes

et al. 2012

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ABSTRACT. Field and laboratory observations of egg masses, encapsulated development stages and earlyhatched veliger larvae of the sub-Antarctic Fusitriton magellanicus (Röding, 1798) are described from samples collected in the Magellan Strait (Santa Ana Point: 53º38'15"S, 70º54'38"W), Chile, between 2005 and. We aimed to determined if: i) if these gastropods show a reproductive pattern development similar to low-latitude ranellids, and with respect to other sub-Antarctic locations within the Gondwanian distributional range (Australia, New Zealand, South America); ii) if F. magellanicus exhibit similar patterns as other Chilean ranellids; and iii) if F. magellanicus exhibit developmental attributes that define as long-distance broadcasters from cold water. F. magellanicus laid around 125 capsules/egg mass. Each contained an average of 2,789 ± 481 embryos, grouped in one circular arrangement. Mean eggs size was 180 μm. Encapsulated period lasted between 55 and 67 days at 10°C, and hatched larvae of 245 to 349 μm in shell length. Spawning occur during spring (October to November; 8°C) associated to an increment of freshwater discharge of San Juan River. A comparison of eggs/embryos/larvae abundance between temperate and tropical Ranellidae allow us to predict that Fusitriton magellanicus shows developmental attributes that indicate higher fecundity in relation to Chilean ranellids and that define it as a long-distance broadcaster. Keywords: mollusc, gastropod, sub Antarctic benthos, seasonal reproduction, Ranellidae, Magellan Strait. Desarrollo intracapsular, oviposturas y velígeras tempranas del caracolranélido Fusitriton magellanicus (Röding, 1798) en aguas frías del estrecho de Magallanes, Chile RESUMEN. Antecedentes de terreno y laboratorio fueron utilizados para describir las oviposturas, los estadios del desarrollo intracapsular y las larvas velígeras recién eclosionadas del gasterópodo subantártico Fusitriton magellanicus (Röding, 1798), recolectado en el estrecho de Magallanes, sector Punta Santa Ana (53º38'15"S, 70º54'38"W), Chile, entre el 2005 y 2006 para determinar: i) si este gasterópodo ranélido muestra un patrón reproductivo similar a aquellos ranélidos de bajas latitudes como en aquellas especies distribuidas dentro del círculo subantártico, dentro del rango distribucional Gondwánico (Australia, Nueva Zelanda, Sudamérica), ii) si F. magellanicus exhibe características del desarrollo similares a otros ranélidos de la costa de Chile, y iii) si F. magellanicus presenta atributos del desarrollo que lo puedan definir como una especie de aguas frías de alto potencial de dispersión. F. magellanicus deposita aproximadamente 125 cápsulas/ovipostura agrupadas en un círculo, cada una de las cuales contiene, en promedio, 789 ± 481 embriones. El tamaño promedio de los huevos fue de 180 μm. El desarrollo intracapsular duró entre 55 y 67 días (10ºC), eclosionando larvas cuya longitud de concha varió entre 245 y 349 μm. La producción de oviposturas ocurrió durante primavera (octubre a noviembre; 8°C) y se relacion...

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“…Egg‐laying behaviour and intracapsular development of Argobuccinum pustulosum (Gastropoda: Ranellidae) in temperate waters at the South coast of Chile (Gallardo et al., )…”

Section: Latin America: a Living Laboratory For Evo‐devo Researchmentioning

confidence: 99%

Evolutionary Developmental Biology (Evo‐Devo) Research in Latin America

et al. 2016

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Famous for its blind cavefish and Darwin's finches, Latin America is home to some of the richest biodiversity hotspots of our planet. The Latin American fauna and flora inspired and captivated naturalists from the nineteenth and twentieth centuries, including such notable pioneers such as Fritz Müller, Florentino Ameghino, and Léon Croizat who made a significant contribution to the study of embryology and evolutionary thinking. But, what are the historical and present contributions of the Latin American scientific community to Evo-Devo? Here, we provide the first comprehensive overview of the Evo-Devo laboratories based in Latin America and describe current lines of research based on endemic species, focusing on body plans and patterning, systematics, physiology, computational modeling approaches, ecology, and domestication. Literature searches reveal that Evo-Devo in Latin America is still in its early days; while showing encouraging indicators of productivity, it has not stabilized yet, because it relies on few and sparsely distributed laboratories. Coping with the rapid changes in national scientific policies and contributing to solve social and health issues specific to each region are among the main challenges faced by Latin American researchers. The 2015 inaugural meeting of the Pan-American Society for Evolutionary Developmental Biology played a pivotal role in bringing together Latin American researchers eager to initiate and consolidate regional and worldwide collaborative networks. Such networks will undoubtedly advance research on the extremely high genetic and phenotypic biodiversity of Latin America, bound to be an almost infinite source of amazement and fascinating findings for the Evo-Devo community.

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Egg-laying behaviour and intracapsular development ofArgobuccinum pustulosum(Gastropoda: Ranellidae) in temperate waters at the South coast of Chile

Cited by 11 publications

References 29 publications

Reproductive behavior of the marine gastropod Charonia seguenzae (Aradas & Benoit, 1870) in captivity

Reproductive behavior of the marine gastropod Charonia seguenzae (Aradas & Benoit, 1870) in captivity

Encapsulated development, spawning and early veliger of the ranellid snail Fusitriton magellanicus (Roding, 1798) in the cold waters of the Magellan Strait, Chile

Evolutionary Developmental Biology (Evo‐Devo) Research in Latin America

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