Sapphirina iris Dana, 1849 and S. sinuicauda Brady, 1883 (Copepoda, Cyclopoida): predators of salps in Monterey Bay and the Gulf of California

in Crustaceana
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Species of the copepod genus Sapphirina Thompson, 1829 are deemed as specialized predators of salps. There are only a few documented records of such copepods actually found within their prey. During two cruises of the R/V “Western Flyer” of MBARI (Monterey Bay Aquarium Research Institute), SCUBA diving was used to sample the zooplankton in Monterey Bay and the Gulf of California. An ovigerous female of Sapphirina iris Dana, 1849 and a male of S. sinuicauda Brady, 1883 were collected inside aggregate zooids of the salp Pegea confoederata (Forskål, 1775). Also, two adult females of S. iris were recorded inside P. socia (Bosc, 1802); both were lodged near the orifices they made to enter the salp’s body. This is the first documented record of the association involving these sapphirinid copepods lodged in their prey. The high number of eggs of the female S. iris supports the suggestion that sapphirinids have a higher fecundity than that of other planktonic copepods, an adaptive strategy related to their mode of life. The find of the male S. sinuicauda attached inside the salp differs from earlier observations on the behaviour of sapphirinid males.

Sapphirina iris Dana, 1849 and S. sinuicauda Brady, 1883 (Copepoda, Cyclopoida): predators of salps in Monterey Bay and the Gulf of California

in Crustaceana



BoxshallG. A.2001. Copepoda (excl. Harpacticoida). In: CostelloM. J.EmblowC.WhiteR. J. (eds.) European register of marine species: a checklist of the marine species in Europe and a bibliography of guides to their identification. Coll. Patrim. Nat. 50: 252-268. (Museum National d’Histoire NaturelleParis).

BoxshallG. A.HalseyS. H.2004. An introduction to copepod diversity1-2: 1-966. (The Ray SocietyLondon).

ChaeJ.NishidaS.1995. Vertical distribution and diel migration in the iridescent copepods of the family Sapphirinidae: a unique example of reverse migration? Mar. Ecol. Progr. Ser.119: 111-124.

ChenQ.-C.ZhangS.-Z.ZhuC.-S.1974. On planktonic copepods of the Yellow Sea andthe East China Sea. II. Cyclopoida and Harpacticoda. Stud. Mar. Sin.9: 27-100.

ChristenR.BraconnotJ.-C.1998. The relationships and systematics of the Thaliacea, with keys for identification. In: BoneQ. (ed.) The biology of pelagic tunicates: 265-271. (Oxford University PressOxford).

DanaJ. D.1849. Conspectus Crustaceorum quæ in orbis Terrarum circumnavigatione. Carolo Wilkes e Classe Reipublicæ Fœderatæ duce lexit et descripsit Jacobus D. Dana. Pars II. Proc. Am. Acad. Arts Sci.2: 9-61. (Typis Metcalf et soc. Univ. TypographCantabrigiae).

DurazoR.Gaxiola-CastroG.LavaniegosB.Castro-ValdésR.Gómez-ValdésJ.MascarenhasA. D.2005. Oceanographic conditions west of the Baja California coast, 2002-2003: a weak El Niño and Subarctic water enhancement. Cienc. Mar.31: 537-552.

EsnalG. B.1976. Los sálpidos (Tunicata, Thaliacea) de la expedición EASTROPAC. Physis Buenos Aires sección A35: 169-182.

FuruhashiK.1966. Droplets from the plankton net. XXIII. Record of Sapphirina salpae Giesbrecht from the North Pacific, with notes on its copepodite stages. Publ. Seto Mar. Biol. Lab.14: 123-127.

GascaR.HaddockS. H. D.2004. Associations between gelatinous zooplankton and hyperiid amphipods (Crustacea: Peracarida) in the Gulf of California. Hydrobiologia530/531: 529-535.

GascaR.HooverR.HaddockS. H. D.2015. New symbiotic associations of hyperiid amphipods (Peracarida) with gelatinous zooplankton in deep waters off California. J. Mar. Biol. Assoc. U.K.95: 503-511.

GascaR.Suárez-MoralesE.HaddockS. H. D.2007. Symbiotic associations between crustaceans and gelatinous zooplankton in deep and surface waters off California. Mar. Biol.151: 233-240.

GiesbrechtW.1893. Systematik und Faunistik der pelagischen Copepoden des Golfes von Neapel und der angrenzenden Meeres-Abschnitte. Fauna und Flora des Golfes von Neapel Monographie 19: 1-831. (V. R. Friedländer & SohnBerlin).

GoY. B.OhB.-C.TerazakiM.1998. Feeding behavior of the poecilostomatoid copepods Oncaea spp. on chaetognaths. J. Mar. Syst.15: 475-482.

HaddockS. H. D.HeineJ. N.2005. Scientific blue-water diving. (California Sea Grant, University of CaliforniaLa Jolla, CA).

HereuC. M.LavaniegosB.GoerickeR.2009. Grazing impact of salp (Tunicata, Thaliacea) assemblages in the eastern tropical north Pacific. J. Plankton Res.32: 785-804.

HeronA. C.1973. A specialized predator-prey relationship between the copepod Sapphirina angusta and the pelagic tunicate Thalia democratica. J. Mar. Biol. Assoc. U.K.53: 429-435.

HoJ.-S.1991. Phylogeny of Poecilostomatoida: a major order of symbiotic copepods. Bull. Plankton Soc. Jpn.Spec. Vol.: 25-48.

Lal MohanR. S.1964. On a swarm of salps, Pegea confoederata (Forskål) from the Gujarat coast. J. Mar. Biol. Assoc. India7: 201-202.

LicandroP.BraconnotJ. C.CarréC.DallotS.EtienneM.IbanezF.MoitiéM.2001. Interannual variations of some species of gelatinous zooplankton Siphonophora and Thaliacea in a coastal long-term series in the North-Western Mediterranean. In: BriandF. (ed.) Gelatinous zooplankton outbreaks: theory and practice. CIESM Workshop Ser. 14: 51-52. (CIESMMonaco).

LopesR. M.DamH. G.AquinoN. A.Monteiro-RibasW.RullL.2007. Massive egg production by a salp symbiont, the poecilostomatoid copepod Sapphirina angusta Dana, 1849. J. Exp. Mar. Biol. Ecol.348: 148-153.

MadinL. P.HamnerW. M.HaddockS. H. D.MatsumotoG. I.2013. Scuba diving in blue water: a window on ecology and evolution in the epipelagic ocean. Smithson. Contr. Mar. Sci.39: 71-82.

PaffenhöferG. A.1993. On the ecology of marine cyclopoid copepods (Crustacea, Copepoda). J. Plankton Res.15: 37-55.

PoulinR.1995. Clutch size and egg size in free-living and parasitic copepods: a comparative analysis. Evolution49: 325-336. BovéeF.KouwenbergJ.DesreumauxN.2015. Diversity and geographic distribution of marine planktonic copepods available online at (accessed 17 March 2015).

SarsG. O.1921. An account of the Crustacea of Norway with short descriptions and figures of all the species VII. Copepoda Supplement. (The Bergen MuseumBergen).

SiglM. A.1912. Die Thaliaceen und Pyrosomen des Mittelmeeres und der Adria: Gesammelt während der fünf Expeditionen S.M. Schiff “Pola” 1890-1894. Denkschr. Österr. Akad. Wiss. Math. Naturwiss. Kl. 88: 1-290. (Kaiserlich-Königlichen Hof-und StaatsdruckereiWien).

TakahashiK.IchikawaT.SaitoH.KakehiS.SugimotoY.HidakaK.HamasakiK.2013. Sapphirinid copepods as predators of doliolids: their role in doliolid mortality and sinking flux. Limnol. Oceanogr.58: 1972-1984.

WiebeP. H.MadinL. P.HauryL. R.HarbisonR.PhilbinL. M.1979. Diel vertical migration by Salpa aspera: potential for large-scale particulate organic matter transport to the deep sea. Mar. Biol.53: 249-255.

WilsonC. B.1950. Copepods gathered by the United States Fisheries Steamer “Albatross” from 1887 to 1909, chiefly in the Pacific Ocean. Bull. U.S. Nat. Mus.100: 141-441.

WolfendenR. N.1911. Die marinen Copepoden der deutschen Südpolar-Expedition 1901-1903. II. Die pelagischen Copepoden der Westwinddrift und des südlichen Eismeeres. Deutsche Südpolar Exped. 12 (Zool. 4): 181-380.


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    A, Ovigerous female of Sapphirina iris Dana, 1849 in the atrial cavity of the salp Pegea confoederata (Forskål, 1775) from the Gulf of California, specimens photographed in vivo; B, two adult females of Sapphirina iris from Monterey Bay found attached to the endostyle of Pegea socia (Bosc, 1802) showing entrance orifices (arrowed), specimens photographed in vivo; C, adult male of Sapphirina sinuicauda Brady, 1883 in Pegea confoederata (different zooid individual of the aggregation), lateral view; D, detail of S. sinuicauda grasped by its maxillipeds to the endostyle ridge of the salp P. confoederata; E, male of S. sinuicauda after being removed from salp prey, dorsal view. Photos by Rebeca Gasca. This figure is published in colour in the online edition of this journal, which can be accessed via

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    Sapphirina sinuicauda Brady, 1883, appendages of the adult male from the salp Pegea confoederata (Forskål, 1775) in the Gulf of California: A, antenna; B, maxillule; C, maxilliped; D, leg 2, third endopodal segment; E, urosome and caudal rami, dorsal view; F, caudal ramus, ventral view. Scale bars: A-D, F = 0.1 mm; E. 0.5 mm.


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