Mar Biol. =0 [21]. volume31,pages 117127 (1978)Cite this article. (2001). 2) test. Late in the growing stage (Fig. Oocytes of Astropecten aranciacus, a common species native to the Mediterranean Sea and the East Atlantic, have long been used as an experimental model to study meiotic maturation, fertilization, intracellular Ca 2+ signaling, and cell cycle controls. Orientarsi in un mare di stelle, https://en.wikipedia.org/w/index.php?title=Astropecten_aranciacus&oldid=1149779858, Detail of paxillae with the top red-orange or grey-beige, This page was last edited on 14 April 2023, at 11:14. Great Barrier Reef Marine Authority Workshop Series; 1993. p. 2135. An der Nordkste Sardiniens wurden auf einer Sandflche in 8 m Tiefe Exemplare des SeesternsAstropecten aranciacus einzeln whrend einer 30mintigen Beobachtungsdauer verfolgt. 1986;93:34561. doi:10.1007/s00227-002-0881-y. Meeresunters.28, 304317. Ecol.35, 559566. Early in the growing stage, spermatogenic columns were projected into the central lumen and filled almost the totality of the volume; the gonadal wall began to shrink. The nearshore area was sampled during daylight onboard the artisanal fishing boat Esparta (10m in length; 100 hp), which belonged to the smooth clam fishery fleet and used clam dredges.
Chapman & Hall Identification Guides, 3. 2=0.95; F Two populations ofA. Collection Patrimoines Naturels,. Rotterdam: A.A. Balkema; 1982. 1995;56:26882. The lengthweight relationship can be expressed as W=0.0025L An index of names of recent Asteroidea, part 1: Paxillosida and Notomyotida. is the predicted length at time t (mm), L 2010;74:17996. The offshore cohort C-4 showed higher growth between FebruaryAugust 2011 (22.8mm) and FebruaryOctober 2012 (10.65mm). Sexual reproduction in animals and plants. On coarse grained sand, stops occur more frequently than on fine grained sand. Clark, A. M. (1989). Astropecten aranciacus individuals smaller than 80mm were abundant in shallow waters (530m depth), whereas large individuals (>130mm) were observed mostly offshore (50150m depth). Fac Fish Hokkaido Univ. Correspondence to Article Sea stars play an essential ecological role as high-level predators in the structure and function of intertidal and subtidal benthic communities, where they promote heterogeneity and diversity [23]. biol. statement and Mar Biol. 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. & Ribi, G., 1972. Nachher wurden die Wege vermessen. 1938;17:221312. R. Soc.172, 829885. Privacy Castilla, J. C., 1971. ISBN 0-412-43280-3. xxvi, 794 pp. Starfish: biology and ecology of the Asteroidea. The lack of recruitment offshore may be related to the absence of favorable environmental conditions for larvae settlement and/or to predation on juveniles. The majority of the spent ovaries (Stage V) were found between March and July for both 2011 and 2012. Auf diese Weise wurden 23 Seesterne verfolgt. The gonadal index increased from 0.180.24 in Stage I (Recovery) to a maximal value of 5.64.42 in Stage III (Mature) (Fig. In addition, the influence of exogenous factors such as photoperiod, sea water temperature and chlorophyll (Chl a) concentration on the reproductive biology of the species was also analyzed. A. aranciacus did not show an inverse relationship between gonad index and pyloric caeca index.
Thses prsentes la Facult des Sciences de Paris pour obtenir le Grade de Docteur s Sciences Naturelles Victor Masson et fils, Paris. 5-188, plates 1-7. These authors suggested that adults and juveniles may dwell in different parts of the ecological zone occupied by the species, the fully grown specimens invading the deeper waters. 1981;31:52343. Loosanoff, V. L., 1958. Wiley, New York, 87127. Sex ratio was tested using a Chi-square ( London, UK. The colour of the aboral side is given by a succession of paxillae (from the top they look like round points) with upper extremity red-orange in various combinations with paxillae with upper extremity grey or beige. The five stages that characterize the gonadal development of A. aranciacus are the following: Ovogenesis (Fig. The disc is quite small and the five arms are slender and pointed, slightly turned up at the tips. Cookies policy. 2009;55:1291. . Responses to light ofAsterias rubens. It stops intermittently for an average duration of 2 minutes. Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. Recently, a major decrease in its population has been detected in the Mediterranean Sea [50]. The progression of the identified cohorts over the 3years of study can be seen in Fig. Cite this article. Results showed that their main diet consisted on . Proceeding of the 5th international echinoderms conference. Astropecten aranciacus, the red comb star, is a sea star of the family Astropectinidae. The utilization of nutrients by postmetamorphic echinoderms. 4. Seasonal variation in growth had been described for other Astropecten species, which usually showed a decrease in growth rate associated with gonad maturation [15, 35, 43]. Ontogenetic habitat shift, population growth, and burrowing behavior of the Indo-Pacific beach star, Archaster typicus (Echinodermata; Asteroidea). Tavares Y, Silviro G, Borges P, Braz B, Borzone C. Dinmica populacional de Astropecten marginatus (echinodermata:asteroidea) no sul do Brasil XII Congreso Latino-Americano de Ciencias do Mar Florianpolis; 2007. Roberto Pillon (2009). 1967;38:177087. Gazelle um die Erde, 1874-76 gesammelten Asteriden und Euryaliden. Predation and diurnal migration in theParacentrotus community. 2023 BioMed Central Ltd unless otherwise stated. Kim YS. Sea stars collected from both nearshore and offshore areas had different size compositions (Fig. Mar Biol. Histological observations of the annual change in the gonad of the starfish, Asterias amurensis. Although most astropectinids occur in cold waters, various species of Astropecten currently inhabit the Mediterranean Sea, namely: Astropecten aranciacus (Linnaeus, 1758); A. jonstoni (Delle. Astropecten of the Mediterranean Sea . Ribi, G., Schrer, R. & Ochsner, P. Stomach contents and size frequency distributions of two coexisting sea star species,Astropecten aranciacus andA. reproduction has been analyzed in temperate [11, 15, 18] and in tropical waters [31, 47, 48]. All nearshore and offshore individuals collected monthly, from May 2011 to September 2012, were used for reproduction analyses. Numbers on the top of each column indicate the number of individuals analyzed monthly per sex. Therefore, food does not seem to be a limiting factor in the Maresme coast, suggesting that sea stars do not need to store large amounts of nutrients in the pyloric cecum, because nutrients can be easily obtained from the environment throughout all year. The synchronism between the spawning season of A. aranciacus, and the phytoplankton bloom could be a strategy to guarantee higher survival of early developmental stages. Phil. 5f). Ventura [44] Astropecten spp. The studied A. aranciacus population exhibited a seasonal growth pattern, slightly different for nearshore and offshore cohorts. The ecology of Lough Ine XVI. A. aranciacus major radius length (R) ranged between 11 and 214mm in nearshore samples, with a mean size of 81.40mm (SD=39.44), whereas R ranged between 47 and 280mm in offshore individuals, with a mean size of 161.33mm (SD=44.47). Helgoland Marine Research 1982;62:8594. 2.A. Whiskers (error bars) above and below the box the 95th and 5th percentiles, Seasonal changes in gonadal index (GI, mean, +SE) and pyloric caeca index (PCI, mean, +SE), Monthly mean of sea surface water temperature (SSWT; gray long dash); photoperiod (Photo; gray line), expressed in number of daylight hours every 24h; mean values of chlorophyll a (Chl a) concentration from May 2011 to September 2012 (black line). Provided by the Springer Nature SharedIt content-sharing initiative. 50: pp. Bos AR, Gumanao GS, Alipoyo JCE, Cardona LT. Population dynamics, reproduction and growth of the Indo-Pacific horned sea star, Protoreaster nodosus (Echinodermata; Asteroidea). The number of immature individuals was annotated, and all gonads from adults were examined (between 18 and 34 gonads per month). Jangoux M, Lawrence J. Echinoderm studies 6. Springer Nature. Privacy Generally, the observed paths were all or partially straight. Observations on the locomotor system of Echinodermata. Helgolander Wiss. The major radius lengthweight relationship showed a negative allometry in A. aranciacus, thereby they invest more energy in body enlargement than in fattening, as previously observed in other Astropecten species [19, 46] and sea stars genera [6, 7]. Sexual and asexual reproduction of Allostichaster capensis (Echinodermata: Asteroidea) in Golfo Nuevo. Helgolnder wissenschaftliche Meeresuntersuchungen Monthly samples were obtained on the Maresme coast between November 2009 and October 2012. Growth was estimated from the modal class progression analysis in the length-frequency distributions, using the Bhattacharya method [5], previously used to examine growth in other asteroids [7, 30] and included in the FISAT II software [16]. Meeresunters 24, 151156 (1973). A. Boolootian. 1999;20:42342. REDESCRIPTION AND FIRST ILLUSTRATION OF THE HOLOTYPE OF ASTROPECTEN MONTALIONIS (MENEGHINI, 1852) [PAXILLOSIDA: ASTROPECTINIDAE, https://en.wikipedia.org/w/index.php?title=Astropecten&oldid=1157122236, Short description is different from Wikidata, Articles with unsourced statements from September 2014, Articles with French-language sources (fr), Articles with Italian-language sources (it), Articles with German-language sources (de), Creative Commons Attribution-ShareAlike License 4.0, This page was last edited on 26 May 2023, at 13:15. Ann Math Stat. 2=19.856; df=16, p>0.05). (2001). Google Scholar. The studied A. aranciacus population did not differ significantly in the malefemale proportions, coinciding with previous results in other sexually reproducing asteroids (since sex-ratios can be highly biased in the case of asexual asteroids) [4, 26]. During different samplings, offshore, we observed the presence of Luidia ciliaris and Tethyaster subermis, potential predators [23] that could play an important role in the recruitment failure of A. aranciacus. (urn:lsid:marinespecies.org:taxname:123856), The webpage text is licensed under a Creative Commons Attribution 4.0 License, (urn:lsid:marinespecies.org:taxname:123856), Linnaeus, C. (1758). Picture by Pillon, Roberto. 5c). The photoperiod and Chl a did not show any correlation with GI; however, the spawning season coincided with the time period of highest levels of Chl a. Astropecten aranciacus variations in the gonadal index of different gametogenic stages. Astropecten aranciacus: Scientific classification; Kingdom: Animalia: Phylum: Echinodermata: Class: Asteroidea: Order: Paxillosida: Family: Astropectinidae Gray, 1840: Genera see text. London, United Kingdom: Pearson Education Limited. Gonad and pyloric cecum indices are widely used as indicators of reproductive effort and nutritional condition. Bull. 2008;156:5563. Notes on the ecology ofAstropecten aranciacus. Genetic structure of the high dispersal Atlanto-Mediterreanean sea star Astropecten aranciacus revealed by mitochondrial DNA sequences and microsatellite loci | SpringerLink Home Marine Biology Article Original Paper Published: 01 March 2009 J Mar Biol Assoc UK. Marc Baeta. Collection Patrimoines Naturels,. Seasonal gonad maturation in Astropecten articulatus from the Northern Gulf of Mexico. Resources stored in pyloric cecum seem to play an important role in the seasonal production of gonads in some asteroid species [29]. Echinodermen aus dem antarktischen Meere und zwei neue Seeigel von den Papua-Inseln, gesammelt auf der Reise S.M.S. Reproduction is usually seasonal in temperate waters and spawning takes place with the increase in water temperatures [15]; however, in tropical waters sympatric Astropecten species seem to react differently to changes in sea water temperature and then, spawning occurs at different seasons [44]. Astropecten aranciacus has a defined behavioral pattern: it remains buried in the sand during the daytime, emerges just before sunset and looks for prey all night, and buries itself again just a few hours after dawn [37]. Echinodermata,
in: Costello, M.J.
et al. (Ed.) Gonads and pyloric caeca of the five arms were removed, damp-dried and weighed to 0.001g accuracy. Studer, T. (1884). 5. and Hupe, M. H. (1862). Pac Sci. Sea stars as other echinoderms show usually a high degree of spatial and temporal variability in settlement and recruitment [24]. 4. III-Mature Stage Ovaries were densely packed and stacked with fully grown oocytes in the lumen, and the surface epithelium appeared thin. Berlin: Springer; 2014. p. 14155. Efficient estimation of a shift parameter from grouped data. The mode of dislocation of the sea star Astropecten aranciacus was investigated on 23 individuals at the NE-coast of Sardinia. The reproductive system of A. aranciacus comprises two separate gonads in each arm (ten gonads in total). It is one of the . Ed. The observations were carried out on 2 level sediments with different sand-grain diameter. Single observations indicate, however, that more pronounced ripple marks (on coarse sand) may have an influence. Marion KR, Watts SA, McClintock JB, Schimer G, Hopkins TS. By using this website, you agree to our They have sexual reproduction. Article Range: Northern Atlantic Ocean: Mediterranean. Histoire naturelle des zoophytes chinodermes : comprenant la description des crinodes, des ophiurides, des astrides, des chinides et des holothurides. Helgol Wiss Meeres. Sometimes a gap between the peripheral spermatogenic layer and the central mass of spermatozoa was visible. Echinoderm nutrition. doi:10.1007/s00227-008-1064-2. Inhabits the upper level of sand in coastal areas. 1990;91:5372. Ribi, G., Burla, H. & Ochsner, P., 1976. However, investigation of the underlying molecular mechanisms has often been hampered by the . Rev Biol Trop. Ordinate: number of observations for ea& sector. 2011;158:63948. Starfish have been instrumental in many fields of biological and ecological research. EOL has data for 25 attributes, including: Known occurrences, collected specimens and observations of Astropecten aranciacus (Linnaeus 1758). Your US state privacy rights, Partially spawned (Stage IV) individuals were found between January and July, with a higher frequency in April 2012. aranciacus showed only one daily peak at certain times of the year. 2013;160:278195. Chl a monthly values recorded during our study period were lower between July and September, and two peaks were recorded: one in December 2011 (0.46mgm3) and one in March 2012 (0.93mgm3). This cone acts like a sense organ. Each sea star was followed for 30 min and its locations were recorded every minute. This is a cold-water sea star that feeds upon clams, snails and slugs. 6a). Italia: Calderini Bologna; 1965. To have a certain determination, in some cases, animals should be analyzed in the laboratory or using genetic testing, but often it isnt possible. t Naylor, E., 1958. (Ed.)
European register of marine species: a check-list of the marine species in Europe and a bibliography of guides to their identification. Dissertation, University of Barcelona; 2015. For instance, these authors reported that the spawning periods for A. irregularis coincided with the rise from 8 to 15C in seawater temperatures (North Wales). Santella L, Limatola L, Thai Chun J. For a good identification by sea photo it is important to take a complete picture of all the subject, a picture of the detail of the marginal plates and to measure as precisely as possible the diameter of the sea star. V-Spent Stage Testes shrank and became smaller and contracted; the lumen was almost empty, with some nutritive phagocytes and isolated spermatozoa. Mar Biol. =205mm, k=0. Mar Geol. Revison version. Statistical significance was accepted at p<0.05 [4]. 1972;14:23541. doi:10.1007/s00227-004-1530-4. Mar Biol. Sampling was performed by fishermen on board two vessels from the Arenys de Mar harbor fishing fleet, which use commercial fishing gears according to their fishing modality (shellfish and trawlers) and fishing grounds. V-Spent Stage Ovaries were filled with amorphous material with relict oocytes, the gonadal wall became thicker, and the two-sac structure was more evident. Each tow lasted approximately 30min at a speed of 11.2km, and the mean towed area was around 800m2. Concerning shape variation, the length weight relationship revealed that weight is negatively allometric with length (p<0.001, t=35.54), i.e., A. aranciacus becomes relatively more slender as it grows. The development of the A. aranciacus gonads reflected that mature and partially spawned individuals remained for an extended period of time. Scientific Name: Astropecten americanus: Higher Classfication: Animalia, Echinodermata, Asterozoa, Asteroidea, Valvatacea, Paxillosida, Astropectinidae Chapman & Hall. Studies on the daily rhythmic activity of the starfish,Astropecten polyacanthus (Mller & Trschel) and the accompanied physiological rhythms. white triangles cohort C-4, gray triangles C-5 and black triangles C-6. Part of URI: http://eol.org/schema/terms/body_symmetry Definition: overall repetitive or reflective pattern in the body of one individual of this taxon. is the asymptotic length (mm), k is the growth constant (year1), t is the age (year) of the A. aranciacus, and t Bimonthly size frequency distributions of A. aranciacus collected between November 2009 and October 2012 from Maresme coast. aranciacus does not move continuously. The Chi-square ( doi:10.1007/bf00399585. Google Scholar. European Environment Agency (EEA) Kongens Nytorv 6 1050 Copenhagen K Phone: +45 3336 7100. revision of the Manuscript. Terms and Conditions, | All pictures | Google image | Astropecten aranciacus. As the growing stage progressed, testes enlarged and the number of spermatozoa increased from the border of the columns to the central lumen; at the same time the spermatogenic columns became larger as the gonadal wall shrank (Fig. Astropecten aranciacus (Linnaeus 1758) inhabits the Mediterranean Sea and the eastern Atlantic from Portugal to Angola, including the Canary, Madeira and Cape Verde Islands. Bipinnaria larva nourish essentially on detritus, bacteria, phytoplankton (mainly small diatoms and small flagellates) and small zooplankton [1]. The highest PCI values were recorded between March and May 2012 (>4.5%), whereas the lowest were recorded in the summer months (June, July, August 2011, and July, August, September 2012). Dujardin, M.F. Hansson, H.G. Ed. Study area showing the location of the sampling areas on the Maresme coast (circles) and the 50, 100 and 150m isobaths. The clam dredge consisted of a metal frame (mouth length, 70cm; mouth height, 53cm), a toothed lower bar and a rectangular metal grid box (mesh size, 2929mm). The authors declare that they do not have competing interests. In this study, we examined the diet and the ecological roles of three sympatric species of the genus Astropecten (A. aranciacus, A. irregularis pentacanthus and . Astropecten aranciacus lives on sandy, muddy or gravel bottoms at depths of 2100 metres (7300ft). 2=10.186 df=15; p>0.05) and offshore ( More Info Computer Vision Model Included Sea star oocytes at the peak of the breeding season are fully grown and arrested at prophase I of meiosis [39]. Studer, T. (1876). The coincidence between the highest phytoplankton concentration and the spawning has been previously described in other echinoderms, but it is rare in sea stars [33]. 6h). Relict oocyte debris and phagocytes were present in the lumen (Fig. Nil or low recruitment over a period of time is not surprising in A. aranciacus, i.e., Hrstadius [22] reported that they have a long pelagic larval phase (80days) under laboratory conditions. According to our study, the growth rate for A. aranciacus seems to be related to sea water temperature as higher growth rates were recorded nearshore when sea water temperature was also higher. They are voracious predators, feeding mainly on gastropods and bivalves. 0=0.0011 (N=624; R Therefore, any bigger individuals of A. aranciacus inhabiting depths between 5 and 30m would have been collected in our sampling. Research proceedings of the 5th European conference on echinoderms. Publs Seto Mar. Your privacy choices/Manage cookies we use in the preference centre. Baeta and Ramn [3] observed that Astropecten sea stars have niche segregation, showing a partitioning of the resources and occupying different microhabitats to avoid food competition. The relationship between the length and weight of one organism is usually expressed by the equation W=aL by D. J. Crip. 1985;39:27482. Laurentius Salvius: Holmiae.. In the offshore samples (Fig. Tortonese E. Echinodermata. Mar. The size at first maturity (R50%) was estimated to be R=112mm considering both sexes together. Predation and competition are important biotic interactions influencing populations and communities in marine soft sediments. 2023 BioMed Central Ltd unless otherwise stated. Interagency Taxonomic Information System. Variations in the growth rate of Asterias rubens (L.) from west and south Brittany (France). This species is active and easy to find in the late afternoon and during the night. However, the activity pattern was variable, depending upon site, depth and season. Meeresunters 31, 117127 (1978). Zulliger DE, Lessios HA. When it is touched, the cone contracts and the starfish buries itself on the sand again. No external data sets available for this species.
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