Food effects on statolith composition of the common cuttlefish (Sepia officinalis)
- 175 Downloads
The concentration of trace elements within cephalopod statoliths can provide a record of the environmental characteristics at the time of calcification. To reconstruct accurately the environmental characteristics at the time of calcification, it is important to understand the influence of as many factors as possible. To test the hypothesis that the elemental composition of cuttlefish statoliths could be influenced by diet, juvenile Sepia officinalis were fed either shrimp Crangon sp. or fish Clupea harengus under equal temperature and salinity regimes in laboratory experiments. Element concentrations in different regions of the statoliths (core–lateral dome–rostrum) were determined using laser ablation inductively coupled plasma mass spectrometry (LA- ICPMS). The ratios of Sr/Ca, Ba/Ca, Mn/Ca and Y/Ca in the statolith’s lateral dome of shrimp-fed cuttlefish were significantly higher than in the statolith’s lateral dome of fish-fed cuttlefish. Moreover, significant differences between statolith regions were found for all analysed elements. The fact that diet adds a considerable variation especially to Sr/Ca and Ba/Ca must be taken into account in future micro-chemical statolith studies targeting cephalopod’s life history.
KeywordsInductively Couple Plasma Mass Spectrometry Elemental Composition Aragonite Dietary Effect Fish Otolith
Thomas Lacoue-Labarthe and Noussithe Koueta are acknowledged for generously providing cuttlefish eggs. Jürgen Beusen assisted with egg transport and maintenance. Nicole Hielscher provided invaluable help during the experiments, and Heike Anders helped in preparing and carrying out the ICP-MS analyses. The experiments comply with the current law of Germany.
- Castro BG, Guerra A (1990) The diet of Sepia officinalis (Linnaeus, 1758) and Sepia elegans (D’Orbigny, 1835) (Cephalopoda, Sepioidea) from the Ria de Vigo (NW Spain). Sci Mar 54(4):375–388Google Scholar
- FAO (2005) FISHSTAT Plus Global data set Capture production 1950–2003 (FAO yearbook Fishery Statistics). ftp://ftp.fao.org/fi/stat/windows/fishplus/capdet.zip/Google Scholar
- Gallahar NK, Kingsford MJ (1996) Factors influencing Sr/Ca ratios in otoliths of Girella elevata: an experimental investigation. J Fish Biol 48:174–186Google Scholar
- Hoff GR, Fuiman LA (1995) Environmentally induced variation in elemental composition of red drum (Sciaenops ocellatus) otoliths. Bull Mar Sci 56:578–591Google Scholar
- Jochum KP, Dingwell DB, Rocholl A, Stoll B, Hofmann AW, Becker S, Besmehn A, Bessette D, Dietze HJ, Dulski P, Erzinger J, Hellebrand E, Hoppe P, Horn I, Janssens K, Jenner GA, Klein M, McDonough WF, Maetz M, Mezger K, Munker C, Nikogosian IK, Pickhardt C, Raczek I, Rhede D, Seufert HM, Simakin SG, Sobolev AV, Spettel B, Straub S, Vincze L, Wallianos A, Weckwerth G, Weyer S, Wolf D, Zimmer M (2000) The preparation and preliminary characterisation of eight geological MPI-DING reference glasses for in-site microanalysis. Geostand Newslett 24:87–133CrossRefGoogle Scholar
- Kalish JM (1990) Use of otolith microchemistry to distinguish the progeny of sympatric anadromous and nonanadromous salmonids. Fish Bull US 88: 657–666Google Scholar
- Lipinski MR (1993) The deposition of statoliths: a working hypothesis. In: Okutani T, O’Dor RK, Kubodera T (eds) Recent Advances in Cephalopod Fisheries Biology. Tokai University Press, TokyoGoogle Scholar
- Morris CC (1991) Statocyst fluid composition and its effects on calcium carbonate precipitation in the squid Alloteuthis subulata (Lamarck, 1798): towards a model for biomineralization. Bull Mar Sci 49(1–2):379–388Google Scholar
- Sadovy Y, Severin KP (1992) Trace elements in biogenic aragonite: correlation of body growth rate and strontium levels in the otoliths of the white grunt, Haemulon plumieri (Pisces: Haemulidae). Bull Mar Sci 50:237–257Google Scholar
- Zumholz K (2005) The influence of environmental factors on the micro-chemical composition of cephalopod statoliths. PhD thesis, University of Kiel, Germany p 86Google Scholar