196,247 research outputs found
A lag of 25 years: Evidence from an old capture of Fistularia commersonii Rüppell, 1838 from Lebanon (Mediterranean Sea)
No full text[No abstract available]Azzurro E, 2012, BIOL INVASIONS, V15, P977; Azzurro Ernesto, 2013, Management of Biological Invasions, V4, P167, DOI 10.3391-mbi.2013.4.2.10; Azzurro E, 2011, PLOS ONE, V6, DOI 10.1371-journal.pone.0024885; Bariche M, 2009, J APPL ICHTHYOL, V25, P460, DOI 10.1111-j.1439-0426.2008.01202.x; Bariche M, 2012, J BIOL RES-THESSALON, V17, P74; Bariche M, 2013, MAR BIOL RES, V9, P169, DOI 10.1080-17451000.2012.707322; Crooks J. A., 2011, ENCY BIOL INVASIONS, P404; Crooks J. A., 2005, ECOSCIENCE, V12, P3116; DAISIE, 2008, EUR INV AL SPEC GAT; FRITZSCHE RA, 1976, B MAR SCI, V26, P196; Golani Daniel, 2010, P145; Golani D, 2000, J FISH BIOL, V56, P1545, DOI 10.1006-jfbi.2000.1263; Golani D, 2007, BIOLOGY LETT, V3, P541, DOI 10.1098-rsbl.2007.0308; Kalogirou S, 2007, BIOL INVASIONS, V9, P887, DOI 10.1007-s10530-006-9088-3; Sanna D, 2011, J MAR BIOL ASSOC UK, V91, P1289, DOI 10.1017-S0025315410001451; Streftaris N, 2006, MEDITERR MAR SCI, V7, P87; Whitehead P. J. P., 1963, Bulletin of the British Museum (Natural History) Zoology, V10, P3050
Reproduction of the invasive bluespotted cornetfish Fistularia commersonii (Teleostei, Fistulariidae) in the Mediterranean Sea
No full textWe investigated the reproduction of the bluespotted cornetfish Fistularia commersonii, one of the most successful invaders of the Mediterranean Sea and Europe. The results highlighted a multiple spawning pattern with asynchronous oocyte development and an unrestricted testicular organization with cystic spermatogenesis. Eight maturity stages in females and four in males were described. The reproductive season lasted at least six months, from May to October, with a peak in August, but gravid specimens were observed up to December. The gonadosomatic index and condition factors were significantly correlated with water temperature. Spawning started at an average water temperature of 22°C. The species is reproductively adapted to the conditions occurring in the Mediterranean Sea and it is suggested that warming conditions could facilitate its success along the Northern and Western sectors of the basin. © 2013 Copyright Taylor and Francis Group, LLC.Agresti A, 2007, INTRO CATEGORICAL DA; Anderson Richard O., 1996, P447; Azzurro E, 2004, CYBIUM, V28, P72; Azzurro E, 2007, J APPL ICHTHYOL, V23, P640, DOI 10.1111-j.1439-0426.2007.00864.x; Azzurro E, 2011, PLOS ONE, V6, DOI 10.1371-journal.pone.0024885; Bariche Michel, 2011, Aqua, V17, P181; Bariche M, 2009, J APPL ICHTHYOL, V25, P460, DOI 10.1111-j.1439-0426.2008.01202.x; Bariche M, 2012, J BIOL RES-THESSALON, V17, P74; Bariche M, 2003, J FISH BIOL, V62, P129, DOI 10.1046-j.0022-1112.2003.000014.x; BEGOVAC PC, 1987, J MORPHOL, V193, P117, DOI 10.1002-jmor.1051930202; Ben Souissi J, 2004, VIE MILIEU, V54, P247; Bilecenoglu M, 2002, J MAR BIOL ASSOC UK, V82, P525, DOI 10.1017-S0025315402005829; BOLGER T, 1989, J FISH BIOL, V34, P171, DOI 10.1111-j.1095-8649.1989.tb03300.x; Bowne Patricia S., 1994, P28; BRAEKEVE.CR, 1967, J MORPHOL, V123, P373, DOI 10.1002-jmor.1051230405; Carcupino M, 1999, J FISH BIOL, V55, P344, DOI 10.1111-j.1095-8649.1999.tb00683.x; Claereboudt MR, 2005, FISH RES, V73, P273, DOI 10.1016-j.fishres.2005.02.009; Coll M, 2010, PLOS ONE, V5, DOI 10.1371-journal.pone.0011842; Corsini M, 2002, J FISH BIOL, V61, P1061, DOI 10.1006-jfbi.2002.2115; DAISIE European Invasive Alien Species Gateway, 2008, FIST COMM; Dominici-Arosemena A, 2006, HELGOLAND MAR RES, V60, P287, DOI 10.1007-s10152-006-0045-4; Edelist D, 2011, ACTA ICHTHYOL PISCAT, V41, P129, DOI 10.3750-AIP2011.41.2.09; Fiorentino F., 2004, Biologia Marina Mediterranea, V11, P583; FRITZSCHE RA, 1976, B MAR SCI, V26, P196; Galil BS, 2009, BIOL INVASIONS, V11, P359, DOI 10.1007-s10530-008-9253-y; Galil BS, 2008, HYDROBIOLOGIA, V606, P105, DOI 10.1007-s10750-008-9342-z; Galloway BJ, 2006, J FISH BIOL, V69, P1788, DOI 10.1111-j.1095-8649.2006.01249.x; Garibaldi Fulvio, 2008, Aquatic Invasions, V3, P471, DOI 10.3391-ai.2008.3.4.21; Gell FR, 2002, MAR FRESHWATER RES, V53, P115, DOI 10.1071-MF01125; Golani D, 2000, J FISH BIOL, V56, P1545, DOI 10.1006-jfbi.2000.1263; GOLANI D, 1993, HYDROBIOLOGIA, V271, P109, DOI 10.1007-BF00007547; GOLANI D, 1991, J FISH BIOL, V38, P819, DOI 10.1111-j.1095-8649.1991.tb03621.x; Golani D, 2007, BIOLOGY LETT, V3, P541, DOI 10.1098-rsbl.2007.0308; GRIER HJ, 1981, AM ZOOL, V21, P345; Hoar WS, 1969, FISH PHYSIOL, V3, P1; Kalogirou S, 2007, BIOL INVASIONS, V9, P887, DOI 10.1007-s10530-006-9088-3; Kara M. Hichem, 2009, Marine Biodiversity Records, V2, pe83, DOI 10.1017-S1755267209000438; King M., 1995, FISHERIES BIOL ASSES; Lejeusne C, 2010, TRENDS ECOL EVOL, V25, P250, DOI 10.1016-j.tree.2009.10.009; Letourneur Y, 2004, CYBIUM, V28, P199; LowerreBarbieri SK, 1996, J FISH BIOL, V48, P1139, DOI 10.1111-j.1095-8649.1996.tb01811.x; Marino G, 2001, J FISH BIOL, V58, P909, DOI 10.1006-jfbi.2000.1502; MATTEI X, 1993, J FISH BIOL, V43, P931, DOI 10.1111-j.1095-8649.1993.tb01167.x; Mavruk S, 2008, REV FISH BIOL FISHER, V18, P251, DOI 10.1007-s11160-007-9073-7; McMillan DB, 2007, FISH HISTOLOGY FEMAL; Moore SE, 2007, J FISH BIOL, V71, P1407, DOI 10.1111-j.1095-8649.2007.01614.x; Murua H., 2003, Journal of Northwest Atlantic Fishery Science, V33, P33, DOI 10.2960-J.v33.a3; NAGAHAMA Y, 1983, FISH PHYSIOL, V9, P223; Nakamura Y, 2003, ICHTHYOL RES, V50, P15, DOI 10.1007-s102280300002; Nelson JS, 2006, FISHES WORLD; Pais A, 2007, J FISH BIOL, V70, P269, DOI 10.1111-j.1095-8649.2006.01302.x; Pajaro M, 2011, NEW ZEAL J MAR FRESH, V35, P375; Pampel F. 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First confirmed record of the Lessepsian migrant Pteragogus pelycus Randall, 1981 (Teleostei: Labridae) for the North African coasts
No full text4 pages, 2 figuresOn July 2010, a single specimen of Pteragogus pelycus was captured by gillnets along the coasts of Alexandria, Egypt (approximate position 31°14′N, 29°55′E) between 15 and 25 m of depth. This observation represents the first confirmed record of this species from the North African coastsThis study was supported by the EuroMediterranean Center for Climatic Changes and the Italian Ministry for the Environment and the Territory (Project: The impacts of biological invasions and climate change on the biodiversity of the Mediterranean Sea), and partially supported by the EU Mediterranean Sea Acidification under a changing climate project (MedSeA; grant agreement 265103)Peer reviewe
Fluid dynamic design of Organic Rankine Cycle turbines
No full textSuccessful Organic Rankine Cycle (ORC) power systems demand highly efficient turbo-expanders. In order to meet this goal, a sound strategy for the fluid-dynamic design of the turbine is necessary. The key point of this strategy is the integration of preliminary design methods based on mean-line and throughflow models with the most advanced shape optimization techniques exploiting Computational Fluid-Dynamics (CFD). After an overview on present-day ORC turbine architectures, this chapter discusses the rational connection amongst the various steps of the fluid-dynamic design process, supplementing the dissertation with several applicable examples. Specific design remarks for ORC turbines are highlighted throughout the discussion, and emerging and future trends in the ORC framework are considered
The presence of the invasive Lionfish Pterois miles in the Mediterranean Sea
No full textHere we report the occurrence of Pterois miles in the Mediterranean Sea, based on the capture of two specimens along the coast of Lebanon. Previously, only one record of the species from the Mediterranean Sea had been documented. The new records highlight the arrival of new propagules of P. miles, more than two decades later, hinting to a future potential invasion of the Mediterranean Sea.Albins MA, 2008, MAR ECOL PROG SER, V367, P233, DOI 10.3354-meps07620; Azzurro E, 2012, BIOL INVASIONS, V15, P977; Barbour A.B., 2011, PLOS ONE, V6; BERNADSKY G, 1991, COPEIA, P230; Claydon JAB, 2012, MAR ECOL PROG SER, V448, P119, DOI 10.3354-meps09534; Evripidou S., 2013, TOXIC LIONFISH MAKES; Froese R., 2013, FISHBASE; GOLANI D., 2002, CIESM ATLAS EXOTIC S, V1; GOLANI D, 1992, JPN J ICHTHYOL, V39, P167; Green SJ, 2012, PLOS ONE, V7, DOI 10.1371-journal.pone.0032596; Green SJ, 2009, CORAL REEFS, V28, P107, DOI 10.1007-s00338-008-0446-8; Hamner RM, 2007, J FISH BIOL, V71, P214, DOI 10.1111-j.1095-8649.2007.01575.x; Hare J.A., 2003, 2 NOAA NOS NCCOS, V2; Kimball ME, 2004, MAR ECOL PROG SER, V283, P269, DOI 10.3354-meps283269; Kulbicki M, 2012, MAR ECOL PROG SER, V446, P189, DOI 10.3354-meps09442; Morris JA, 2009, 99 NOAA NOS NCCOS; Mumby PJ, 2011, PLOS ONE, V6, DOI 10.1371-journal.pone.0021510; Sambrook J., 1989, MOL CLONING LAB MANU; Schofield Pamela J., 2009, Aquatic Invasions, V4, P473; SCHULTZ ET, 1986, COPEIA, P686, DOI 10.2307-1444950; Valdez-Moreno M, 2012, PLOS ONE, V7, DOI 10.1371-journal.pone.0036636; Ward RD, 2005, PHILOS T R SOC B, V360, P1847, DOI 10.1098-rstb.2005.1716; Zenetos A, 2012, MEDITERR MAR SCI, V13, P32823
Reproduction features of the non-native Siganus luridus (Teleostei, Siganidae) during early colonization at Linosa (Sicily Strait, Mediterranean Sea)
No full textIn July 2003, the finding of a newly settled population of Siganus luridus at Linosa Island (Sicily Strait, Mediterranean Sea) gave us the unusual opportunity to examine the reproductive condition of a Lessepsian migrant during early phases of colonization. Aspects of gonad morphology, fecundity, atresia and oocyte dynamics were investigated by using 43 pioneer specimens collected in concomitance with their first record in the Pelagie Islands. Ovarian development was consistent with the group-synchronous type, and testicular organization was of the unrestricted spermatogonial testis type, with cystic spermatogenesis. Both males and females had reached final stages of gonad maturation. The rates of follicular atresia were moderate: out of 17 adult females, 10 individuals did not present atretic oocytes; six exhibited andlt;15.1percent of secondary growth phase (SGP) oocytes in α-atresia, while one female presented 45.7percent of SGP in α-atresia. Fecundity estimates did not diverge from what was observed in a reference population along the Lebanese coast. Absolute fecundity ranged from 115 739 to 740 433 oocytes per female (16.5-24.5 cm LT). Relative fecundity ranged from 1239 to 3162 oocytes g -1, with a mean of 1885 ± 868 oocytes g-1. Our observations indicated that these early settled siganids are reproductively active at Linosa and suggested the forthcoming of self-maintaining populations across the central Mediterranean area. © 2007 The Authors.Azzurro E, 2006, J EXP MAR BIOL ECOL, V333, P190, DOI 10.1016-j.jembe.2005.12.002; Azzurro E, 2004, J MAR BIOL ASSOC UK, V84, P819, DOI 10.1017-S0025315404009993h; AZZUURRO E, 2006, THESIS U POLITECNICA; BARICHE M, 2002, THESIS U MEDITERRANE; Bariche M, 2005, J APPL ICHTHYOL, V21, P141, DOI 10.1111-j.1439-0426.2004.00619.x; Bariche M, 2003, J FISH BIOL, V62, P129, DOI 10.1046-j.0022-1112.2003.000014.x; Ben-Tuvia A., 1985, MEDITERRANEAN MARINE, P367; Bradai MN, 2004, CYBIUM, V28, P315; CASTRIOTA L, 2005, TYRRHENIAN SEA JMBA2; GRIER HJ, 1981, AM ZOOL, V21, P345; HOLDEN M J, 1974, FAO (Food and Agriculture Organization of the United Nations) Fisheries Technical Paper, V115, P1; HTUNHAN M, 1978, J FISH BIOL, V13, P369, DOI 10.1111-j.1095-8649.1978.tb03445.x; HUNTER JR, 1985, FISH B-NOAA, V83, P119; KARTAS F., 1984, FECONDITE POISSONS T, V5; Komatsu T, 2006, J FISH BIOL, V68, P236, DOI 10.1111-j.1095-8649.2005.00897.x; Lahnsteiner F, 1999, J FISH BIOL, V55, P820, DOI 10.1006-jfbi.1999.1039; Lambert Y, 1997, CAN J FISH AQUAT SCI, V54, P104, DOI 10.1139-cjfas-54-S1-104; LOWERREBARBIERI SK, 1993, FISH B-NOAA, V91, P165; LowerreBarbieri SK, 1996, J FISH BIOL, V48, P1139, DOI 10.1111-j.1095-8649.1996.tb01811.x; MATTEI X, 1993, J FISH BIOL, V43, P931, DOI 10.1111-j.1095-8649.1993.tb01167.x; MAYER I, 1988, J FISH BIOL, V33, P609, DOI 10.1111-j.1095-8649.1988.tb05504.x; *MFSTEP, 2005, MED FOR SYST ENV PRE; Nagahama Y., 1983, Fish physiology. Volume IX. Reproduction. Part A. Endocrine tissues and hormones., P223; Por F. D., 1978, ECOL STUD, V23, P228; Rahman MS, 2001, COMP BIOCHEM PHYS B, V129, P367, DOI 10.1016-S1096-4959(01)00323-2; WALLACE RA, 1981, AM ZOOL, V21, P325; WOODLAND DJ, 1983, B MAR SCI, V33, P71333
On the occurrence of the silverstripe blaasop Lagocephalus sceleratus (Gmelin, 1789) along the Libyan coast
No full textFive individuals of Lagocephalus sceleratus were caught by trammel and gill nets off Ain Al Ghazala, Libya (approximately 32°09'N − 23°15'E) between 15 and 25 m depth in September 2010. Our findings represent the first record of this toxic species from Libya and provide further evidence of its occurrence along North African coasts
Abundance patterns at the invasion front: The case of Siganus luridus in Linosa (Strait of Sicily, Central Mediterranean Sea)
No full textThe dusky spinefoot (Siganus luridus) has spread through much of the eastern Mediterranean since its introduction in 1920. In the present study, we monitored the abundance of this invader around the island of Linosa (Strait of Sicily), where the species was first recorded in 2003. Data were periodically collected along two temporal windows, 2005-06 and 2012-15, by both underwater visual census and surface snorkelling. Local ecological knowledge was investigated to gain complementary information. Both approaches highlighted significant proliferation of this tropical invader, with an average abundance of 0.36 individuals per 250m2 across the 0-30-m depth range. Dense aggregations of more than 100 adult individuals were observed in September 2015, and a coherent spatial structure at the small scale (<1km) was demonstrated. Considering the biogeographical relevance of this population, located at the western edge of its exotic distribution, these findings can be taken as a valuable case study for understanding invasion processes in the marine environment
Abundance patterns at the invasion front: The case of Siganus luridus in Linosa (Strait of Sicily, Central Mediterranean Sea)
No full textDistribution patterns of coastal fish assemblages associated with different rocky substrates in Asinara Island National Park (Sardinia, Italy)
No full textStudies on ichthyofauna provide essential information for suitable management of a marine protected area. Fish assemblages associated with granite and schist substrates were studied by visual census at four different depth levels from 0 to 30 metres, in Asinara Island National Park (NW Sardinia, Italy). Forty-seven fish species were recorded with Labridae (12 species), Sparidae (10) and Serranidae (4) being the families with most species. Chromis chromis were most abundant, followed by Diplodus vulgaris and Coris julis. Multi Dimensional Scaling plots showed a clear-cut difference only for fish assemblages of the 4-7 m stratum while Analysis of Similarities tests for substrate and sites at different depth levels found significant differences only among sites. ANOVA performed on species richness, total fish abundance (mean individuals number 125 m-2), and density of the most abundant species did not detect any significant differences between substrates, except for D. sargus. It revealed instead significant differences among sites for C. chromis and Serranus cabrilla and among depth levels for C. chromis and Spicara maena. Furthermore, a significant interaction between these two factors for several species was found. Even though no marked differences between fish assemblages associated with the two substrates were observed, our findings suggest that further research on this topic would dramatically enhance our understanding of the fish distribution patterns in marine protected areas
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