Feeding ecology of three species of Astropecten (Asteroidea) coexisting on shallow sandy bottoms of the northwestern Mediterranean Sea

Baeta, Marc; Ramón, Montserrat

doi:10.1007/s00227-013-2270-0

Cited by 17 publications

(9 citation statements)

References 45 publications

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“…The importance of C. chione is both ecological and economical. Baeta and Ramón (2013) reported that this bivalve was one of the main preys of the seastar species of the genus Astropecten in the western Mediterranean Sea, and they are also consumed by other invertebrates such as the gastropod Hexaplex trunculus (Morton et al 2007) and the cephalopod Octopus vulgaris (Fiorito and Gherardi 1999). C. chione is commercially exploited and consumed in Portugal and the Mediterranean Sea (Gaspar et al 2001, Tirado et al 2002, Metaxatos 2004, Pubill et al 2011, Baeta et al 2014 where it is captured with small boats using different types of artisanal dredges.…”

Section: Introductionmentioning

confidence: 99%

Reproduction and size at first maturity in a Mediterranean exploited <em>Callista chione</em> bivalve bed

et al. 2015

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Summary:The smooth clam Callista chione is an Atlantic-Mediterranean species that is commercially exploited in several European countries. Several aspects of its reproduction were studied in a coastal location of the northwestern Mediterranean as a tool for sustainable fisheries management. Gonadal development was classified into 6 different stages, ranging from immature to degradation of the remaining sexual structures. Results showed that C. chione was able to reproduce throughout the year but a main spawning period occurred in spring. First records of hermaphrodites were found for this species. The mature spermatozoa measured 4. Keywords: gonads; first maturity; hermaphroditism; Veneridae; commercial mollusks. Reproducción y talla de primera madurez en un banco de Callista chione explotado en el MediterráneoResumen: La concha fina Callista chione es una especie atlántico-mediterránea comercialmente explotada en distintos paí-ses europeos. Se estudiaron varios aspectos de su reproducción en una localidad costera del noroeste Mediterráneo como herramienta para la gestión sostenible de su pesquería. El desarrollo gonadal se clasificó en 6 estadios distintos, que engloban desde individuos inmaduros a la degradación de las estructuras sexuales remanentes. Los resultados mostraron que C. chione se podía reproducir durante todo el año con un periodo de máxima puesta en primavera. Se observaron hermafroditas de esta especie por primera vez. Los espermatozoos maduros midieron 4.70±0.66 µm (sin el flagelo) incluyendo un corto acrosoma de 0.75±0.09 µm. La pieza media de los espermatozoos estaba compuesta por 5 mitocondrias. Los ovocitos maduros median entre 60-80 µm de longitud. La talla de primera maduración (SL 50

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Section: Introductionmentioning

confidence: 99%

Reproduction and size at first maturity in a Mediterranean exploited <em>Callista chione</em> bivalve bed

et al. 2015

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“…Therefore, S. officinalis eggs could be part of the diet of littoral sea urchins with more carnivorous or omnivorous feeding habits. Aside from sea urchins, EC were consumed by predators with either carnivorous or omnivorous diets; the starfish A. aranciacus, known to be a voracious predator with a carnivorous diet (Baeta & Ramón 2013) arrosor, D. setifer is known to be highly mobile and have an opportunistic predatory and scavenging behaviour, using its large chelae to grasp and break up its food or prey . On the other hand, C. pagurus is considered a more sluggish predator that predominantly ambushes epifaunal prey without distancing itself much from its refuge or its proximities (Lawton 1989).…”

Section: The Feeding Biology Of Potential Predators Of Sepia Officinamentioning

confidence: 99%

Invertebrate predation on egg masses of the European cuttlefish, Sepia officinalis: An experimental approach

Martins

Fernández-Álvarez

Villanueva

2018

Estuarine, Coastal and Shelf Science

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Sepia officinalis embryos develop inside ink-stained black encapsulated eggs fixed to the seafloor in shallow water habitats. The enveloping layers of these eggs allow the embryo to develop within a micro-environment and are thought to provide protection.Since embryological development may last months, this short-lived species spends a relatively long period of its lifespan on shallow waters, vulnerable to predation and physical stress. Yet, only a handful of species are known to feed on S. officinalis eggs, most of them fish. Marine benthic invertebrates, however, are likely candidates contributing to predation of this critical life stage. In this study, several invertebrate marine species, from 6 different phyla and with diverse feeding habits, were investigated as potential predators of S. officinalis eggs under laboratory conditions.Feeding experiments also tested to what extent the egg capsule and lower levels of mechanical protection could deter predation and Multivariate Correspondence Analyses were performed to explore which feeding traits of the tested invertebrate species would explain the experimental results. Results showed predation on eggs by crabs and echinoderms equipped with certain prey capture methods that allowed them to feed on eggs. Also, the egg capsule appeared to provide protection from predation by certain species with less powerful prey capture tools. Prey capture tools of the tested species appeared to be the feeding trait that better explained the experimental results. Therefore, whether or not eggs were eaten in these experiments might be determined by a mechanical factor. Nonetheless this may not be the case for species that might not have fed on eggs due probably to a chemosensory question, not recognising them as food.This work thus contributes to the understanding of the ecology of early life stages of cuttlefish and the factors that can affect offspring survival and subsequently impact recruitment to the adult populations of this exploited species.iii ACKNOWLEDGMENTS This work might not have been possible without the support and help of many people.Many thanks to my directors, Fernando Fernández-Álvarez and Dr. Roger Villanueva, who taught me with patience and trusted me to embark on this study, while making the work truly feel like a journey of curiosity. Without their continuous guidance and encouragement this work would not have been the same.

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“…In the study area A. aranciacus feeds mainly on the bivalves Glycymeris glycymeris and Callista chione, together with the gastropod Cyclope neritea between 5 and 30 m depth [3]; and almost exclusively on the bivalve Timoclea ovata between 50 and 200 m depth [2]. Recently, a major decrease in its population has been detected in the Mediterranean Sea [50].…”

Section: Introductionmentioning

confidence: 99%

“…There is a vast literature on the genus Astropecten worldwide, mainly focusing on their feeding behavior, diet characteristics [3,11] and early stages of development [22,27]. However, aspects of their biology such as growth and reproductive biology have been less analyzed than those of other sea star genera [44].…”

Section: Introductionmentioning

confidence: 99%

“…A. aranciacus is the dominant species on the continental shelf of the Maresme coast (northwestern Mediterranean Sea), where it co-occurs with other species of the same genus (A. platyacanthus, A. irregularis pentacanthus, A. bispinosus, A. spinulosus and A. jonstoni) between 5 and 30 m depth [2]. Baeta and Ramón [3] observed that Astropecten sea stars have niche segregation, showing a partitioning of the resources and occupying different microhabitats to avoid food competition. At depths between 50 and 200 m in the same area, A. aranciacus co-occurs with A. irregularis pentacanthus and other non-congeneric species (Luidia ciliaris, Tethyaster subermis, Peltaster placenta, Anseropoda placenta and Hacelia attenuata) [2].…”

Section: Introductionmentioning

confidence: 99%

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Growth and reproductive biology of the sea star Astropecten aranciacus (Echinodermata, Asteroidea) on the continental shelf of the Catalan Sea (northwestern Mediterranean)

2016

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The growth and reproductive biology of the sea star Astropecten aranciacus was investigated on the continental shelf of the northwestern Mediterranean Sea. Sea stars were captured monthly in two bathymetric ranges (5-30 and 50-150 m) between November 2009 and October 2012. Bathymetric segregation by size in A. aranciacus was detected: small individuals inhabit shallow areas (5-30 m), while large individuals inhabit deeper areas of the continental shelf (50-150 m). Recruitment was recorded twice nearshore but no recruitment was detected offshore during the whole study period. Three cohorts were identified in each bathymetric range and growth rates were estimated. A. aranciacus population exhibited a seasonal growth pattern, being higher from June to October in the nearshore cohorts and from February to October in the offshore ones. Histology and organ indices revealed that spawning likely started in March, coinciding with the spring phytoplankton bloom and the increase in sea water temperature, and extended until June-July. Ratio between males and females was approximately 1:1 throughout the year and in both bathymetrical ranges. The size at first maturity (R50 %) was estimated to be R = 112 mm. A. aranciacus did not show an inverse relationship between gonad index and pyloric caeca index.

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Feeding ecology of three species of Astropecten (Asteroidea) coexisting on shallow sandy bottoms of the northwestern Mediterranean Sea

Cited by 17 publications

References 45 publications

Reproduction and size at first maturity in a Mediterranean exploited <em>Callista chione</em> bivalve bed

Reproduction and size at first maturity in a Mediterranean exploited <em>Callista chione</em> bivalve bed

Invertebrate predation on egg masses of the European cuttlefish, Sepia officinalis: An experimental approach

Growth and reproductive biology of the sea star Astropecten aranciacus (Echinodermata, Asteroidea) on the continental shelf of the Catalan Sea (northwestern Mediterranean)

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