The family Bramidae (Perciformes) from the Canary Islands(Northeastern Atlantic Ocean), with three new records
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The family Bramidae (Perciformes) from the Canary Islands (Northeastern Atlantic Ocean), with three new records by Gustavo González-lorenzo* (1, 2), José F. González-Jiménez (1), Alberto Brito (2) & José A. González (3) Cybium 2013, 37(4): 295-303. (1)InstitutoEspañoldeOceanografía,CentroOceanográficodeCanarias,víaEspaldón,parcela8,DársenaPesquera,38180SantaCruz deTenerife,Spain.[[email protected]] (2)Bioecomac,UniversidaddeLaLaguna,Avda.AstrofísicoF.Sánchezs/n,LaLaguna,38205SantaCruzdeTenerife,Spain. [[email protected]] (3)G.I.enEcologíaMarinaAplicadayPesquerías,UniversidaddeLasPalmasdeGranCanaria/InstitutoCanariodeCienciasMarinas, CarreteradeTaliartes/n,35214Telde,LasPalmas,Spain.[[email protected]] * Correspondingauthor[[email protected]] most bramids are oceanic epiand mesopelagicperciformfishesinwarmand temperatewatersoftheAtlantic,Indian andPacificOceans;onlyEumegistus is bathypelagic,foundinzonesofmore than1300mofdepth(Mead,1972; Haedrich,1981;FroeseandPauly, 2013).Pomfretsprobablytravelinsmallschoolsandsome (i.e. Brama)undertakeextensivemigrations;theyfeedmostlyonsmallfishandsquid.Theyareexcellentfoodfishes (Haedrich,1981). AccordingtoEschmeyer(2013),thefamilyBramidae isrepresentedby20speciesdistributedaroundtheWorld ocean, and grouped in seven genera: Brama (8species), Eumegistus (2 species), Pteraclis (3 species), Pterycombus, Taractes, and Taractichthys (2specieseach),andXenobrama (1species).Ofthese,ninespeciesarefoundinthe EasternAtlanticOceanandtheMediterraneanSea(Mead, 1972;Haedrich,1981,1986;Bauchot,1987;Gomes,1990; FroeseandPauly,2013;Eschmeyer,2013):Brama brama (Bonnaterre,1788),Brama caribbeaMead,1972,Brama dussumieri Cuvier, 1831, Pteraclis carolinus Valenciennes, 1833, Pterycombus bramaFries,1837,Pterycombus petersii(Hilgendorf,1878),Taractes asper Lowe, 1843, Taractes rubescens(Jordan&Evermann,1887),andTaractichthys longipinnis(Lowe,1843). IntheEasternCentralAtlantic,Brama and Taractichthys arecaughtincidentallyonlonglinesandwithpelagicand bottomtrawls,butthereisaspecialfisheryforB. brama in theCanaryIslandsandoffNorthwesternSpain(Haedrich, 1981).IntheMediterraneanSea,B. bramaiscaughtwitha varietyoffishinggearsbysmall-scalefisheries,recreational anglers,andasaby-catchoftheartisanalandsemi-industrial fisheriesinSicily.Thisspeciesisregularlytorarelypresent ontheMediterraneanEuropeanfishmarkets(Bauchot, 1987). Untilthepresentpaper,onlythreespeciesofbramids havebeenrecordedintheCanaryIslands(Fig.1):P. carolinus (Mead, 1964), B. brama and T. longipinnis (e.g. Brito, 1991;Britoet al.,2002;BritoandSancho,2003).Inthese accounts,onlytheirhabitatandbathymetricdistribution weregiven,thereforetheyremainpoorlyknowninseveral morphologicalandbiologicalaspects. FollowingaseriesofsurveysofftheCanaryIslands, P. brama, T. asper, and T. rubescens(Fig.2)werecaughtfor thefirsttimefromthisregionandnewdataonotherexistent bramidsweregathered,whicharehereinpresented. Abstract.–AnaccountofthespeciesofthefamilyBramidae(Teleostei,Perciformes)fromtheCanaryIslands is given. Pterycombus brama, Taractes asper and Taractes rubescensarerecordedforthefirsttimeintheCanaries,whichbringstosixthenumberofbramidspeciesrecordedinthearea.Availabledataondistribution,habitat, andmorphometryofthestudiedspeciesarepresented. Résumé.–LafamilleBramidae(Perciformes)desîlesCanaries(océanAtlantiquecentre-oriental),avectrois nouveaux signalements. UnelistedesespècesdelafamilledesBramidae(Teleostei,Perciformes)présentesauxîlesCanariesest fournie. Pterycombus brama, Taractes asper et Taractes rubescenssontsignaléespourlapremièrefoisauxîles Canaries,portantàsixlenombredebramidésdanslazone.Lesdonnéesdisponiblessurladistribution,l’habitat etlamorphométriesontprésentées. © SFI Received: 25 Apr. 2013 Accepted: 14 Nov. 2013 Editor: P. Béarez Key words Bramidae Pterycombus brama Taractes asper Taractes rubescens Canary islands eastern Atlantic
Bramids from the Canary Islands González-lorenzo e t a l . 296 Cybium 2013, 37(4) MATERIAL AND METHODS Mostofthespecimensstudiedwerecollectedduring experimentalfishingcruisesonboardresearchorfishingvesselsaroundtheCanaryIslands.Othermaterialwasprovided bylocalartisanalfishermensincetheywererarespecimens, andfinallyafewfreshspecimenswereboughtatthelocal fishmarketswithabsolutecertaintythattheycamefrom localfisheries. Specimenswerecaughtbyhandline(HL),driftingsurface longlines(SLL),andbottomlonglines(BLL),regularlyused bytheCanaryartisanalfleetandalsoduringfishingoperationsformonitoringtheMarineReserveoftheislandofEl Hierrofrom2008to2010(González-Lorenzoet al.,2010). SmallspecimensofB. bramawerealsotrawledbetween40 and600mofdepthusinganexperimentalpelagicnet(1cm mesh-size)duringthecruiseCETOBAPHinApril2012.In ordertoenablecountingthelongitudinalscaleseries,small specimenswerestainedbyusingaCoomassieBrilliantBlue R-250stainingsolutionkit. Voucherspecimensweredepositedinthecollectionsof the‘MuseodeCienciasNaturalesdeTenerife’(TFMC)and the‘CentroOceanográficodeCanarias’oftheSpanishInstituteofOceanography(IEO).Additionalunpreservedmaterialwasincludedinthepresentaccount,wheneverrelevant todepthrangeorbiologicalinformation. CountsandmeasurementsweremadefollowingHubbs andLagler(1958).Othercountsandterminologywere basedonMead(1972).Otherabbreviationsareasfollows: TL,totallength;SL,standardlength. Figure1.-TheCanaryIslands.Collectionlocations(l). Figure 2. - A: Pterycombus brama(TFMC-VP/01919,328mm SL);B: Taractes asper(TFMCBM-VP/1936,228mmSL);and C: Taractes rubescens(772mmSL)fromtheCanaryIslands.
Go n z á l e z -lo r e n z o e t a l . Bramids from the Canary Islands Cybium 2013, 37(4) 297 RESULTS Brama brama (Bonnaterre, 1788) Material examined.-Sevenspecimens(spms)caughtoff LaPalmainApril2012,cruiseCETOBAPH,withpelagic trawlbetween28º32’N17º59’Wand28º35’N18º00’W: TFMC-VP/1937,129mmTL,94mmSL,TFMC-VP/1938, 95mmTL,70mmSL,138-194m,sta.LP5,11May2012; TFMC-VP/1939,124mmTL,89mmSL,415-442m,sta. LP6,11May2012;TFMC-VP/1940,81mmTL,57mmSL, 410-620m,sta.LP9,13May2012;TFMC-VP/1941,56mm TL,39mmSL,40-206m,sta.LP12,14May2012. Additional material.-CruiseEMBELHIERRO-1009, Oct2009,35spms,470-840mmTL,offElHierro,460-600 m,fishingoperationsforalfonsinosBeryx spp., Hl. Cruise CETOBAPH,May2012,pelagictrawl,3spmsdepositedin thecollectionoftheIEOatTenerifewithnoregisternumber: 125-181mmTL,87-135mmSL,offLaPalma,28º32’N 17º59’W(sta.LP2)and28º35’N18º00’W(sta.LP7),40-620 m;1spm,100mmTL,69mmSL,offElHierro,27º38’N 18º02’W(sta.EH1),30-190m. Remarks.-Anoceanicepipelagic(atnighttime)andmesopelagicspeciesrangingfromsurfacedowntoabout1000m ofdepth(Smith,2003),usuallybetween0-200m(McMillan et al.,2011),widespreadintheAtlantic,Indianand SouthPacificoceans(e.g.MeadandHaedrich,1965;Last andMoteki,2001;Carvalho-Filhoet al.,2009;Froeseand Pauly,2013).IntheEasternAtlantic,ithasbeenrecorded fromcentralNorway(Haedrich,1986)southwardtoAlgoa Bay,SouthAfrica(Smith,2003),includingtheMediterraneanandtheMacaronesianarchipelagos(FroeseandPauly, 2013).Thishighlymigratoryspecieshasspecifictemperaturerequirements(Mead,1972;seeDiscussion). Thepresenceofsmallspecimens(39-135mmSL)of B. bramaamongthematerialexaminedwasespeciallyconsideredasthesesize-classesdonotnormallyappearinfish markets;theywereidentifiedaccordingtodescriptionsand characteristicsgivenbyMead(1972),ThompsonandRussell(1996)andLastandMoteki(2001).Theirmostsignificantmeristicmeasurementswere:35-37dorsalrays,29-31 analrays,21-22pectoralrays,82-85scalesonlateralseries, and16-18gillrakers. Brama bramawasfirstrecordedintheCanaryIslands byValenciennes(1837-1844,asBrama raii),whereitisthe mostabundantbramid.Thisisasecondaryspeciesofsmallscalefisherieswithartisanalgear(handlines,verticallonglinesandsurfacelonglines)aroundtheCanaries,especially whenitrisesuptomidwaterandsurfaceatnight.Although commonwhenitapproachestheislandsinautumnandwinter(FranquetandBrito,1995),thelevelofcapturesremains low.Uibleinet al.(1998)reportedascientificcollectionof adultsusingbottomlonglinesat278-882m,suggestingthat thespeciesmayalsobelongtothebenthopelagiccommunity.DuringtherecentcruiseCETOBAPHofftheCanaries in2012,smallindividualswerecaughtwithpelagictrawls between30and620ofdepth. Pteraclis carolinus Valenciennes, 1833 Material examined. - none. Remarks. - Thisspeciesisknowntooccuroffshorein warmmesopelagicwatersfromsurfacetoabout400mof depth,witharestricteddistributioninboththeWestern(SargassoSea)andEasternAtlanticOcean,includingoffMadeiraandofftheWestAfricancoastbetween20°Nand25°N (Mead,1972;Haedrich,1986;Gomes,1990;Carvalho-Filho et al.,2009;FroeseandPauly,2013). Thefirst,andsofaruniquerecord,ofthisspeciesfrom theCanaryIslandswasdonebyMead(1964),basedontwo individuals(15.5and19.1mmSL)caught3.5to5milesoff theWesterncoastofTenerifein1961duringtheDiscovery IIcruise,withamesopelagictrawlfrom170mtosurface overdepthof1160-1700m.Afterthisdate,thisspecies wascitedfromtheNorthwesterncoastofAfricabetween 21ºNand25ºNandalsofromtheNorthernnearbywatersof Madeira(Mead,1972;Haedrich,1986;Gomes,1990),but itwasnotincludedintheichthyologicalchecklistsforthe CanariesmadebyBrito(1991),Britoet al.(2002)andBrito andSancho(2003). Pterycombus brama Fries, 1837 Material examined. - TFMC-VP/01919,1spm, 426mm TL,328mmSL,offPuntadelaEntallada,Fuerteventura, 28º14’N13º50’W,450-500m,30Mar.2009,onaHLinthe artisanalfisheryforalfonsinosBeryx spp. Remarks.-ApelagicoceanicspeciesinhabitingAtlantictemperateandtropicalwatersfrom67°Nto1°Sand from98°Wto36°E(e.g.McEachranandFechhelm,2005; FroeseandPauly,2013),between25and400mofdepth (MuusandNielsen,1999).IntheEastAtlanticOcean,ithas beenrecordedfromNorwayandIceland(Jonsson,1992)to SouthoftheCapLopez,WestofMayumba(GulfofGuinea) (Gomes,1990),includingthecoastsofSweden,BritishIsles andNWSpain(e.g.Mead,1972;Bañónet al.,2010;Froese andPauly,2013).TheMediterraneanrecord–withnolocalityorbibliographicreference–byCarvalho-Filhoet al. (2009)[theseauthorstookthisrecordfromScottandScott (1988)]needsfurtherconfirmation.Itisaseasonalmigrant (Haedrich,1986). Thisisthefirstrecordforthisamphi-Atlanticspecies fromtheCanaryIslands.Thepresentmaterialwascollected between450and500mofdepth.Apartfromthevoucher specimen,atleasttwomoreindividualswerecaughtand photographedatthislocality–theCanarycoastnearestto theAfricancontinent–at500-600m.Thesefindingsenlarge theverticaldistributionrangeofthisspecieswithinthemesopelagic community.
Bramids from the Canary Islands González-lorenzo e t a l . 298 Cybium 2013, 37(4) Selectedbodyproportionsandmeristicsofthematerial studiedareshownintableIandcomparedwithMead(1972) datatakenfromotheradultspecimensofthesamespecies and from P. petersii.TheCanarianspecimenagreesinalmost allrespectswiththecomparativematerial.Theonlymajor differencefoundwasinthepre-anallength,27.7%SLin theCanarianmaterialvs 34.6-40.4%for P. brama and 32.135.1%forP. petersiifromotherareas(Tab.I).Inourspecimen,thelongestdorsalrayis34.8%inSL,whichagrees withtherangegivenforP. brama(22.4-39.4%)butdiffers from P. petersii(41.4-63.5%)(Tab.I).Carvalho-Filhoet al. (2009)pointedoutthatvaluesover50%inSLdifferentiate juvenileofP. brama from P. petersii. Taractes asper Lowe, 1843 Material examined. - TFMCBMVP/1936,1spm, 285mm TL,228mmSL,ElRío,LaPalma,28º31’N17º44’W,450 m,12Jun.2012,onaBLLintheartisanalfisheryforalfonTableI.-SelectedcountsandbodyproportionsofPterycombus bramacomparedwithP. petersii. Presentstudy Mead(1972) Canary islands WestAfrica NWSpain Norway P. petersii Body proportions and counts 1 specimen 1 specimen 1 specimen 4specimens 2spec.(incl.holotype) Standardlength(SLmm) 328 353 268 284-314 244-277 In%SL Headlength 25.6 28.9 25.2 23.8-27.2 23.2-25.4 Pre-dorsallength 17.4 21.7 17.4 18.9-21.7 15.8-20.1 Pre-anallength 27.7 40.2 35.8 34.6-40.4 32.1-35.1 Forklength 106.7 –111.8 110-114 110.7-111.5 Bodydepth 44.5 48.0 41.2 42.2-46.7 38.9-43.3 Eyediameter(horizontal) 9.7 10.5 7.8 8.4-10.5 7.7-8.4 longest dorsal ray 34.8 22.4 39.2 29.1-39.4 41.4-63.5 longest anal ray 36.0 20.8 40.7 31.7-41.4 42.2-58.0 Counts Dorsal-finrays 50 51 51 46-52 49-49 Anal-finrays 42 41 43 41-42 40-41 Gill rakers 8(1+1+6) 7 7 8-10 8-8 TableII.SelectedcountsandbodyproportionsofTaractes asper. Presentstudy Mead(1972) ThompsonandRussell(1996) Mead(1972) Canary islands east Atlantic Gulf of mexico WestPacific Body proportions and counts 1 specimen 5specimens 5specimens 3 specimens Standardlength(SLmm) 228 270-308 332.5-377 383-400 In%SL Headlength 32.0 29.8-32.8 30.9-31.7 30.7-32.5 Pre-dorsallength 39.0 32.8-42.0 40.5-42.9 39.3-40.2 Pre-anallength 50.0 57.6-62.4 56.7-59.2 59.7-62.2 Pre-pectorallength 28.5 30.8-33.0 29.7-31.6 31.0-35.4 Pre-pelviclength 27.2 33.9-37.0 34.5-36.6 35.4-39.8 Pectoral-finlength 28.5 28.5-32.9 29.8-35.6 31.3-33.3 Pelvic-finlength 18.9 14.5-16.7 17.2-19.0 13.8-17.7 Caudal-pedunclelength 7.0 –13.9-15.8 – Caudal-peduncledepth 7.9 7.1-8.2 7.2-7.8 7.1-7.5 Bodydepth 43.4 38.7-44.5 41.3-45.1 42.2-45.5 Eyediameter(horizontal) 9.7 7.8-10.5 Counts Dorsal-finrays 32 33-34 – 32-33 Anal-finrays 25 25-26 –24-25 Scalesinlateralseries 43 43-45 –45-46 Gill rakers 1+1+6 1+1+6-7 –1+1+6-7
Go n z á l e z -lo r e n z o e t a l . Bramids from the Canary Islands Cybium 2013, 37(4) 299 sinos Beryx spp. Remarks. - Apelagicoceanicspeciesinhabitingcircumglobaltropicaltotemperatewatersat72°N-35°S, 180°W-180°E,between1and140mofdepth(Mundy,2005; FroeseandPauly,2013).IntheEasternAtlanticOceanit isknownfromNorthernNorwayandIcelandtoMadeira, includingthecoastsofGermany,BritishIslesandNWof Spain,toCapeProvince,SouthAfrica(e.g.MeadandMaul, 1958;Mead,1972;Haedrich,1986;Smith,2003;Bañónet al.,2010).Itisahighlymigratoryspecies(FroeseandPauly, 2013). AccordingtoThompsonandRussell(1996),thisspecies and T. rubescensaresympatric,thelatterspeciespreferring higherlatitudes. ThisisthefirstrecordforthisrareandwidespreadspeciesfromtheCanaryIslands.Thepresentmaterialwas caughtatadepthof450,whichenlargesconsiderablyits verticalrangeextendingitshabitatfromtheepi-tothemesopelagic community. Selectedbodyproportionsandmeristicsofthematerial studiedareshownintableIIandcomparedwithdataavailablefromliterature.TheCanarianspecimenagreesinalmost allrespectswithMead(1972)andThompsonandRussell (1996)specimens,exceptforsomeminordifferencesin thepre-anal,pre-pelvic,andcaudalpedunclelengths(Tab. II).Thesmallsizeofourspecimenmayeventuallyexplain thesediscrepancies.Mead(1972)pointedoutthatchanges accompanyinggrowthbetween169and300mmSLinclude thetransformationofatruncatecaudalfintoaconcaveone, theformationofanteriorlobesinthedorsalandanalfins,a relativeshorteningofthepairedfinsandthefurtherposterior displacementoftheventralfin,amongothers. Taractes rubescens (Jordan & Evermann, 1887) Material examined.-TFMC-VP/764,1spm,831mm TL,669mmSL,offArguineguín,SWGranCanaria,5Mar. 2002,SLL;TFMC-VP/1382,1spm,768mmTL,586mm SL,offPuertoRico,SWGranCanaria,15Oct.2004,SLL. Bothspecimenscaughtonsurfacebythelocalartisanal fleet. Additional material. - 1spm,890mmTL,772mmSL, offPuntadelaDehesa,ElHierro,27º47’N18º07’W,14 Oct.2009,onaHL;examinedandidentifiedatthelocalfish market.Onemorespecimen,identifiedfromaphotograph, caughtatElHierroin2006at400-500mofdepth,alsoon a Hl. Remarks.-Anoceanicpelagictobenthopelagicspecies widelydistributedincircumglobaltropicalwaters,between surfaceand600mofdepth(Yoshida,1973;Masudaet al., 1984;Carvalho-Filhoet al.,2009;FroeseandPauly,2013). IntheEasternAtlanticOceanitisknownfromtheAzores (Santoset al.,1997),Madeira(Haedrich,1986)andoffWest Africa(MauritaniaandNamibia)(e.g.Mead,1972;Lloris et al.,1991;FroeseandPauly,2013).AlthoughitiswidespreadintheWorldOcean,thisspeciesisrareandoftensolitary(Carvalho-Filhoet al.,2009). ThisisthefirstrecordforthisspeciesfromtheCanary Islands.Thepresentmaterialwascollectedbetweensurface and400-500mofdepth,confirmingitshabitatinboththe epipelagicandbenthopelagiccommunities.ThetwospecimensfromElHierrowerecaughtasby-catchintheartisanalfisheryforthealfonsinoBeryx splendensLowe,1834 (Berycidae),abenthopelagicfishfoundingroupsonrocky substrata,closetoorwithin5-20mofslopesatadepth between200and1240m;andalsofoundin10-50mdense shoalsaboveseamounts(seeBusakhin,1982).The772mm SLspecimenfromElHierroisapparentlythebiggestever recorded[700mmSLinFishBase,742mmSLinThompson andRussell(1996)]. SelectedbodyproportionsandmeristicsofthematerialstudiedareshownintableIIIandcomparedwithdata availablefromliterature.TheCanarianspecimensagreein almostallrespectswiththematerialfromWesternAtlantic andfrombothEasternandWesternPacificOceans.Theonly majordifferencefoundshowsthattheCanarianspecimens haveslightlysmallerpre-dorsallength,pre-pelviclength andbodydepth(Tab.III).LastandMoteki(2001)proposed thatvaluesofpectoral-finlengthover36%inSLseparate T. rubescens from T. asper.TheCanarianmaterialvalues (33.9-34.9%)arewithinThompsonandRussell(1996)range (themostcompletedataseries)(Tab.III).Lloris(1986)also givesvaluesof26.8-32.4%SLfor3individualsofT. rubescens fromNamibiaranging315-410mmSL.Thesedifferencesintheproportionsofpectoral-finlengthmaybedueto thelownumberofspecimensofthisrarespeciesmeasured and/ortointra-specificvariability.AllCanarianspecimens haveakeelinthecaudalpeduncleasaresultofaseriesof 4or5transformedscales;thischaracteristic(notpresent in T. asper)combinedwithbodyproportionsandcountsis enoughtowarrantthecorrectidentificationoftheCanarian specimens. Taractichthys longipinnis (Lowe, 1843) Material examined. - 2 spms, TFMC-VP/1049,727mm TL,561mmSL,Arguineguín,SWGranCanaria,27º43’N 15º48’W,5Mar.2002,SLL;TFMC-VP/1048,1spm, 643mmTL,516mmSL,Arguineguín,SWGranCanaria, 27º41’N15º48’W24Jan.2004,HL.BothvoucherspecimenswerecollectedintheframeworkoftheFishTrace project. Additional material. - 2spms,704-742mmTL,536557mmSL,bothfromsamelocality,dataandprojectofthe abovefirstvoucher,SLL;1spm,850mmTL,680mmSL, Arguineguín,SWGranCanaria,27º43’N15º48’W,4Jun. 2004,SLL;2spms,630-835mmTL,ElHierro,530-580m, cruiseEMBELHIERRO-0608,Jun.2008;3spms,640,780
Bramids from the Canary Islands González-lorenzo e t a l . 300 Cybium 2013, 37(4) and800mmTL,ElHierro,450-600m,cruiseEMBELHIERRO-0308,Mar.2008.AllspecimensfromElHierrowere caughtonHLforalfonsinosBeryx spp. Remarks. - Anoceanicepipelagic(atnighttime)and mesopelagic Atlantic species distributed in temperate to tropicalwaters(upto10ºC)between47°Nand17°N,from surfacetoabout500mofdepth(MacMillanet al.,2011), usuallyat42-200m(Carvalho-Filhoet al.,2009;Froeseand Pauly,2013).IntheEasternAtlanticOceanitisknownfrom IcelandandNorwaysouthwardtooffPointeNoire,Gulfof GuineaandNamibia,includingtheMacaronesianarchipelagos;questionablyreachingFalseBay,SouthAfrica(Smith, 2003);absentfromtheMediterranean(e.g.Mead,1972; Bañónet al.,2010;FroeseandPauly,2013).Itisahighly migratory species, often solitary but occasionally found in smallschoolsclosetoshore(Carvalho-Filhoet al.,2009). AccordingtoSmith(2003),allrecordsofthisspecies fortheIndianandPacificOceans(Paulin,1981;Thompson andRussell,1996;LastandMoteki,2001;Hatooka,2002; Thompson,2002)arebasedonmisidentificationsofTaractichthys steindachneri (Döderlein,1883). ThefirstrecordofthisspeciesfromtheCanary IslandsisduetoBrito(1991).Thepresentmaterialwas caughtwithhandlines50-100mabovetheseafloorin600 mofdepth(González-Lorenzoet al.,2010),confirmingits habitatinboththeepi-andmesopelagiccommunities.Off theCanaries,itisseasonallycommonwhenapproachingthe islandsduringitsmigrationinautumnandwinter,together withB. brama.Thespeciesinhabitsoceanicwaters,mainly inmidwaterontheinsularslopes,ascendingtowardsthe surfaceduringnight-time.Itusuallyformsschools(FranquetandBrito,1995)anditiscaughtwithhandlines,verticallonglinesanddriftingsurfacelonglines(atnight).Inthe CanaryIslandswaters,T. longipinnisiscaughtsporadically andseemstobelessabundantthanB. brama. most probably,thecatchesofthisspecieswillgrowwiththeincreasing useofdriftingsurfacelonglines(FranquetandBrito,1995). DISCUSSION FivegeneraandsixspeciesofthefamilyBramidaeoccur offtheCanaries,representing83%and60%respectively oftheknowngeneraandspeciesofpomfretsintheEastern AtlanticOceanandtheMediterraneanSea. Asbramidsareoceanicmigratoryspecieswithawide geographicaldistributionandtheCanaryichthyological faunaiswell-known(Brito,1991;Britoet al.,2002;Brito andSancho,2003),thepresentnewrecordsforthisregion canbeexplainedbythelowuseofdriftingsurfacelonglines andtheabsenceofpelagicormidwatertrawlingaroundthe CanaryIslands.Anyway,atleastBrama brama and Taractichthys longipinnisarenotabundantspecies.Also,veryfew scientificsurveysusingthistypeoffishinggear–whichis thecaseofthecruiseCETOBAPH–havebeenconducted to date. TableIII.-SelectedcountsandbodyproportionsofTaractes rubescens.*:Rangesfromauthorsprobablyduetoapartialinclusionofdata takenfromthesecondspecimenfound. Presentstudy Mead(1972) ThompsonandRussell(1996) Mead(1972) Puenteset al.(2001) Canary islands Gulf of mexico Gulf of mexico WestPacific ColombianPacific Body proportions and counts 3 specimens 1 specimen 22 specimens 1 specimen 1 specimen Standardlength(SLmm) 599-772 620 305-742 690 430 In%SL Headlength 28.1-29.9 30.2 28.0-32.8 30.8 34.7 Pre-dorsallength 34.9-37.0 41.6 38.1-44.7 38.8 45.3 Pre-anallength 49.7-50.1 61.3 30.8-67.2 63 67.4 Pre-pectorallength 29.2-32.3 31.4 28.5-32.1 34.1 34.9 Pre-pelviclength 28.4-33.3 35.2 31.6-37.5 39.1 37.2 Pectoral-finlength 33.9-34.9 38.2 32.1-41.7 39.7 43.0 Pelvic-finlength 13.1-14.4 9.7 12.4-15.6 11.2 17.7 Caudal-pedunclelength 10.0-10.9 –15.3-19.8 – – Caudal-peduncledepth 6.0-6.8 6.1 5.9-7.0 7.0 7.9 Bodydepth 33.9-41.3 39.5 35.8-41.2 38.4 44.2 Eyediameter(horizontal) 5.3-6.5 6.8 5.2-6.8 5.5 7.4 Counts Dorsal-finrays 30-30 31 – 31 28-29(*) Anal-finrays 21-21 22 – 22 20 Scalesinlateralseries 46-48 45 –41 49-50(*) Gill rakers 2+1+7 3+1+6 –1+1+7 2+1+7
Go n z á l e z -lo r e n z o e t a l . Bramids from the Canary Islands Cybium 2013, 37(4) 301 WithinthearchipelagosoftheMacaronesianregion sensu lato,thebramidsarerepresented,fromNorthtoSouth, asfollows:theAzores(5species)(Santoset al.,1997), theMadeiraarchipelago(6species)(Haedrich,1986),the CanaryIslands(6species)(thiswork),andtheCapeVerde Islands(4species)(Reiner,2005)(Tab.IV). AccordingtoMead(1972),B. bramahasspecifictemperaturerequirementsandinwatermasseswithsurfacetemperatureabove23.8ºCitseemstobereplacedbyB. dussumieri,acongenericformwithapparentlysimilarpantropical distributionbutsmallerinsize.Inthelastthirtyyearsthere hasbeenatrendtowardincreasingthetemperatureofthe seasurfaceintheareaoftheCanaryIslands(Santoset al., 2012),withrecordsover24ºC.Inthisscenariotheappearance of B. dussumieriwouldnotbesurprisinganditspresencewouldbeanevidenceofthechangeinthedistribution ofspeciesduetoglobalwarmingintheAtlantic.Thisphenomenon(‘tropicalization’)hasbeenobservedintheCanariesforspecieswithlessdispersalabilitythaninthepresent case(Falcónet al.,2002;Britoet al.,2005). in general, except for B. brama, descriptions of bramid speciesaswellastheirknownmeristicandmorphometric informationarebasedonafewnumberofspecimens.For thisreasonmostauthorsconsiderpomfretsasrarespecies. Asaconsequence,itisdifficulttomakedecisionsaboutthe taxonomicalimportanceofthedifferentcharactersandthere isaneedtogathermoreinformationcoveringtheontogeneticseriesofthedifferentspecies.Asanexample,ourdata onpectoralfinlengthforT. rubescens are not valid to distinguishthisspeciesfromT. asper, as proposed by last and Moteki(2001). Despiteallometricchangeshavebeenobservedinsome bramidspeciesduringitsdevelopment(Mead,1972),discrepanciesrecordedinmorphometricdatawhencomparing adultspecimensofthesamespeciesorfromcloselyrelated speciesseemtobeduetothefewnumberofindividuals.For T. rubescens,thepresentworkapparentlyincludesthebiggest specimen ever recorded. Somebramidspeciesareconsideredtobeexcellentfood fishesforhumanconsumption(Haedrich,1981).Thesespecies are traditionally assessed and monitored by FAo as transzonalandhighlymigratoryresources(Garcíaet al.,1995). IntheEasternCentralAtlanticandtheMediterraneanSea,B. bramaiscaughtincidentallywithmanytypesoffishinggear asby-catch,exceptoffNorthwestSpainwherethereisatargetedfisherybasedonsurfacelonglines,yieldingnoticeable catchesforthisspecies(e.g.Mead,1972;Haedrich,1981). ContrarytowhatHaedrich(1981)andseveralauthors havepublished,thereisnotaspecificfisheryforB. brama aroundtheCanaryIslands,wherethisspeciesisincidentallycaughtasby-catchbythesmall-scalefisheriesmainly directedtoothertargetspeciesinhabitingthebenthopelagic community.CatchesreportedbyFAOsince1970sfromthe CanariesaremostprobablyreferredtotheSpanishlonglinersoperatinginnearbyoradjacentwaterstotheCanaries, betweenCapGhir(Morocco)andCapeBojador(Western Sahara)(Vázquez,1980),wherethisspeciesisalsocaught bytheindustrialbottom-trawlfleet(Garcíaet al.,1995). Acknowledgements. – Theauthorsareindebtedtoresearchersand technicalpersonnelparticipatingincruisesandprojectswhichsupportedthiswork.FISHTRACE2003-2006(QLRI-CT-2002-02755) wasco-fundedbyFP5oftheEuropeanCommission.Cruises EMBELHIERROoftheprojectRESMARCAN2008-2010,ofthe SpanishInstituteofOceanography(IEO),wereco-funded by an agreementwiththeSpanishMinistryofFisheries.Thisworkwas alsosupportedbytheproject“Cetáceos,OceanografíayBiodiversidaddelasAguasProfundasdeLaPalmayElHierro”(grant numberCETOBAPH-CGL2009-1311218)fundedbythe“MinisteriodeCienciaeInnovación”oftheSpanishGovernment.Thanks arealsoduetothemastersandcrewsoftheR/V‘CornidedeSaavedra’andothercollaborators:ChanoRodríguezNoda,crewofthe F/V‘Adoney’fromFuencaliente,LaPalma,andfishermenfrom LaRestinga,ElHierro.SpecialthankstoDr.JacintoBarquínand AlejandroEscánez(UniversityofLaLaguna),PabloMartín-Sosa (IEO),andJaimeRodríguez.Ourgratitudeforthe‘MuseodeCienciasNaturalesdeTenerife’(TFMC),especiallytoAlejandroVera. REFERENCES BAÑÓNR.,VILLEGAS-RÍOSD.,SERRANOA.,MUCIENTES G.&ARRONTEJ.C.,2010.-MarinefishesfromGalicia(NW Spain):anupdatedchecklist.Zootaxa,2667:1-27. BAUCHOTM.L.,1987.-Poissonsosseux.Bramidae.In:Fiches FAOd’identificationdesespècespourlesbesoinsdelapêche. (Rév.1).MéditerranéeetmerNoire.Zonedepêche37.Vol.2. Vertébrés(FischerW.,BauchotM.L.&SchneiderM.,eds), pp.1000-1001.Rome:FAO. BRITOA.,1991.-CatálogodelosPecesdelasIslasCanarias. 230p.LaLaguna:Lemus. TableIV.-PresenceandabsenceoftheAtlanticbramidsofftheMacaronesianarchipelagos(NortheasternAtlanticOcean)todate. main reference Azores Santoset al.(1997) madeira Haedrich(1986) Canaries thisstudy Cape Verde Reiner(2005) Brama brama X X X X Pteraclis carolinus X X Pterycombus brama X X X X Taractes asper X X X Taractes rubescens X X X X Taractichthys longipinnis X X X X
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