Reproductive biology in the starfish Echinaster (Othilia) guyanensis (Echinodermata: Asteroidea) in southeastern Brazil

Mariante, Fátima L. F.; Lemos, Gabriela Barreto; Eutrópio, Frederico Jacob; Castro, Rodrigo R. L.; Gomes, Levy Carvalho

doi:10.1590/s1984-46702010000600010

Cited by 16 publications

(8 citation statements)

References 16 publications

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“…Most gametogenic stages did not differ between sexes in the GI values. It has been reported that some asteroid species have higher GI values in females than in males (Carvalho & Ventura, 2002;Pastor de Ward et al, 2007;Bos, Gumanao, Alipoyo & Cardona, 2008;Benítez-Villalobos & Martínez-García, 2012) while others show higher values in males than in females (Benítez-Villalobos & Díaz-Martínez, 2010) or even no difference between the sexes (Georgiades, Temara & Holdway, 2006;Benítez-Villalobos, Díaz-Martínez & Tyler, 2007;Mariante, Lemos, Eutrópio, Castro & Gomes, 2010).…”

Section: Discussionmentioning

confidence: 98%

Pattern of energy allocation during the gametogenesis of the asteroid Cosmasterias lurida (Forcipulatida: Stichasteridae) from the Beagle Channel, Ushuaia, Argentina

Cossi

Boy

Pérez

2017

RBT

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Energy allocation patterns during the reproductive cycle of echinoderms may be determined by the different energy requirements of the organisms. In this study, we describe the energy reserves variation in the gonads, pyloric caeca and stomach among the gametogenic stages of a population of Cosmasterias lurida from the Beagle Channel, Argentina. Adult individuals of C. lurida were collected from the subtidal zone of Ushuaia Bay during four seasonal sampling periods (August 2010 to June 2011). Indices, energy density (kJ/g ash-free dry mass) and energy content (kJ) of gonads, pyloric caeca and stomach were determined. Oocytes number and diameter were evaluated. Cosmasterias lurida had a major peak of gonadal index (GI) in mature gonads (M), with a great decrease towards the spawning (PS/PSR) and remature (RM) periods. No variation was observed in the energy density of the gonads (EDG). The energy content of the gonads (ECG) presented a similar pattern to the GI. Thus, the gonadal storage cycle can be explained through the variation in gonad mass more than in its energy density. Females had higher ECG and EDG values than males, which suggest a greater energy contribution in females during the reproductive cycle. The stomach and the pyloric caeca indices, energy density and energy content remained unaltered among the stages. The energy density of pyloric caeca (EDPC) was higher in mature males than in mature females. Likewise, the energy density of the stomach (EDS) was overall higher in males than in females. This inverse pattern between sexes in relation to the EDG may suggest a transference of energy from the pyloric caeca and stomach to gonads during maturate stage playing a storage role for reproduction. Rev. Biol. Trop. 65(Suppl. 1): S197-S206. Epub 2017 November 01.

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Section: Discussionmentioning

confidence: 98%

Pattern of energy allocation during the gametogenesis of the asteroid Cosmasterias lurida (Forcipulatida: Stichasteridae) from the Beagle Channel, Ushuaia, Argentina

Cossi

Boy

Pérez

2017

RBT

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“…In Santa Catarina, the starfish Echinaster (Othilia) brasiliensis was identified in 29 sites, recorded by 14 scientific references (Table 1). In Brazil, three Othilia species have been recorded, Othilia brasiliensis (Tommasi, 1970b;Hopkins et al, 2003;Netto et al, 2005;Lima & Fernandes, 2009;Gondim et al, 2011Gondim et al, , 2020Miranda et al, 2012;Ventura et al, 2013;Alitto et al, 2016), Othilia guyanensis (Hopkins et al, 2003;Mariante et al, 2010;Ventura et al, 2013) and Othilia echinophorus (Tommasi, 1970b;Alves & Cerqueira, 2000;Hopkins et al, 2003;Gondim et al, 2008Gondim et al, , 2011Gondim et al, , 2020Lima & Fernandes, 2009;Miranda et al, 2012;Ventura et al, 2013). However, according to the phylogenetic study by Lopes et al (2016), O. brasiliensis and O. guyanensis should be synonymized, and the status of O. echinophorus should be reviewed; the authors emphasize the large morphological variability and phenotypic plasticity of the genus Echinaster, and support the raise of the genus Othilia, previously demoted to subgenus (Clark & Tortonese, 1986).…”

Section: Taxonomic Informationmentioning

confidence: 99%

Echinoderms from Santa Catarina, southern Brazil: an update on biodiversity and distribution

2022

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We provide an update, based on literature records, on biodiversity and distribution of echinoderms along the state of Santa Catarina, Brazil. Sixty-one echinoderms taxa are reported, in 36 families. We present information on habitat distribution, taxonomy and possible threats to these species. The highest number of echinoderm records was between 25°19′S and 28°11′S latitudes, and sites of the Continental Shelf and the Reserva Biológica Marinha of Arvoredo area had the most species records (30 and 26 species, respectively). In addition, Santa Catarina is the southernmost record, in the Atlantic Ocean, for 40 echinoderm species; of these, 10 are on the regional list of endangered species. Eight species are endemic to Brazil and one ophiuroid species was reported herein for the first time at Santa Catarina: Ophiacantha pentacrinus Lütken, 1869.

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“…Asterinid species have different reproductive patterns, including seasonal or continuous breeding periodicity (Carvalho and Ventura, 2002;Barker and Xu, 1991b;Byrne, 1992;Paik et al, 2005;Pastor-de-Ward et al, 2007;Mariante et al, 2010;Micael et al, 2011;Benítez-villalobos and Martínez-garcía, 2012). The differences are related to many environmental factors, including temperature, hydrodynamics, the quantity and quality of available food, and photoperiod.…”

Section: Introductionmentioning

confidence: 99%

Size distribution of individuals in the population of Asterias amurensis (Echinodermata: Asteroidea) and its reproductive cycle in China

Zhou

et al. 2018

Acta Oceanol. Sin.

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To obtain baseline information on the size distribution of individuals in the population and reproductive features of sea star Asterias amurensis, monthly surveys of the population were carried out from May to December 2010 and March to May 2015 in coastal waters off Yantai, China. Spawning period was predicted by gonad and pyloric caeca indices as well as anatomical and histological methods. In the A. amurensis population, both large individuals (>143 mm) and small ones (<42 mm) were present in all sampling months. The population size structure was driven by the appearance of big cohorts of individuals less than 55 mm from May to August. The appearance of small individuals in all months suggested a prolonged spawning period at other sites in this bay or sea stars growing slowly because of food shortage. An arm length is a good predictor to wet body weight for A. amurensis. The development of gonad was relative slow from May to September but rapidly reached a peak of 20.95 in October 2010, and then dropped remarkably, indicating its spawning lasted from October to November. The same phenomenon was found from March to May 2015, suggesting another spawning during March to May, which was also verified by the results of histologic analysis on ovary. The gonad index (GI) and pyloric caeca index (PCI) tended to show a negative relationship. Due to the poor food availability, the reproductive characteristics of sea star were most likely affected by the shellfish mariculturein Yantai coastal waters.

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Reproductive biology in the starfish Echinaster (Othilia) guyanensis (Echinodermata: Asteroidea) in southeastern Brazil

Cited by 16 publications

References 16 publications

Pattern of energy allocation during the gametogenesis of the asteroid Cosmasterias lurida (Forcipulatida: Stichasteridae) from the Beagle Channel, Ushuaia, Argentina

Pattern of energy allocation during the gametogenesis of the asteroid Cosmasterias lurida (Forcipulatida: Stichasteridae) from the Beagle Channel, Ushuaia, Argentina

Echinoderms from Santa Catarina, southern Brazil: an update on biodiversity and distribution

Size distribution of individuals in the population of Asterias amurensis (Echinodermata: Asteroidea) and its reproductive cycle in China

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