CRUSTACEA: TANAIDACEA
Magdalena BŁAŻEWICZ -PASZKOWYCZ UNIVERSITY OF ŁÓDŹ, DEPARTMENT OF INVERTEBRATE ZOOLOGY AND HYDROBIOLOGY LABOROATORY OF POLAR BIOLOGY AND OCEANOBIOLOGY, LODZ, POLAND [email protected]
Roger N. BAMBER (Artoo, UK), Piotr JOZWIAK (UL), Rob N. JENNINGS (University of Massachussets) & Krzysztof PABIS (UL) Tanaidacea – what they are?
• small • marine • b enthic • cosmopolitan coral reefs, estuaries, algal turfs, hydrothermal vents, mud volcano, polymetalic nodules... ISOPODA contra TANAIDACEA
4 3 2 1 3 4 5 6 5 2 6 7 1
• seven free pereonites • six free pereonites • subchela • chela ISOPODA contra TANAIDACEA
• more than one pleonite fussed with • one pereonite fussed with thorax thorax • oxygen exchange in branchial • oxygen exchange by pleopods chamber • valves • no valves
ISOPODAISOPODA contracontra TANAIDACEA TANAIDACEA Diversity of TANAIDACEA
Błażewicz-Paszkowycz et al. 2012 Diversity of TANAIDACEA
Terebellatanais floridanus Suárez-Morales, 2011
Suárez-Morales et al. 2011 Diversity of TANAIDACEA parasite
Exspina typica Lang, 1968
Alvaro et al. 2011 Tanaidacea in soft sediments habitats
Gulf of Cadiz ~ 500 m
aggregation of tanaid tubes
low abundance
aggregation of polychaete tubes
photo: Marina DaCunha TANAIDACEA - systematic (suborders) Previous
Apseudomorpha Neotanaidomorpha
Tanaidomorpha TANAIDACEA - systematic (suborders) Recent
Apseudomorpha Tanaidomorpha Neotanaidomorpha
Neotanaoidea Tanaoidea Paratanaoidea Tanaidacea in World Ocean
1302 species described + a thousand undescribed ± 40 000 species may occur in the World Ocean*
Apseudomorpha Neotanaidomorpha Tanaidomorpha 4%
41% 55%
* (Appeltans at al. 2012) others Sphyrapodidae Pagurapseudidae Apseudidae
Kalliapseudidae
APSEUDOMORPHA Parapseudidae Metapseudidae
others Tanaopsidae Leptocheliidae Kalliapseudidae Anarthruridae Leptocheliidae Akanthophoreidae Tanaidae
Tanaellidae Typhlotanaidae Colle eidae incertae sedis TANAIDOMORPHA Pseudotanaidae Agathotanaidae Paratanaidae Tanaidacea in SOUTHERN OCEAN number of tanaid records per depth*
* Based on accesible literature and unpublished data (h p://peracarida.usm.edu/iwp_home.html)
Błażewicz-Paszkowycz (2014) Tanaidacea Kuril-Kamchatka Trench
Species cumula on curve Number of species present (gear :GKG; depth 5600-6100 m) in 1, 2, 3… 12 sta ons
(Błażewicz-Paszkowycz et al. 2014) TANAIDACEA (suborders)
Tanaidomorphan tubes Tanais cavolinii - brooding behaviour
manka
Johnson & Attramadal, 1982 • tube building life style
• no planktonic stage
• immobile juvenile (manca)
Tanaidacea have limited dispersal poten al
Poten ally ideal indicators of the environmental condi ons TANAIDACEA – problem with males 1. ‘TERMINAL’ male 2. ‘JUVENILE’ male
e.g. Agathotanaidae
Neotanais krappschickelae 3. ‘SWIMMING’ male
Nototanais dimorphus Peraeospinosus n.sp. Problem of being (tanaid) male
1 4
2 5
3 6 1 Problem of being (tanaid) male Typhlotanaidae 4
2 Agathotanaidae
Akanthophoreidae 5 Cryptocopodidae 3 6
? Typhlotanaidae Mating tactic e.g. female mimicry hypothesis Tanaidacea of Pacific & Clairon-Cliperton Fracture Zone Apseudomorpha diversity
others 6% Sphyrapodidae 6%
Pagurapseudidae 10% Apseudidae 35%
Kalliapseudidae 10%
Parapseudidae 18% Metapseudidae 18% Apseudidae Sphyrapodidae Tanaidomorpha family diversity
others 6% Tanaopsidae 2%
Anarthruridae 3% Leptocheliidae 13% Leptognathiidae 5%
Akanthophoreidae 6% Tanaidae 11%
Tanaellidae 7%
Typhlotanaidae 11% Colle eidae 7%
Pseudotanaidae 7% incertae sedis 8%
Agathotanaidae 7% Paratanaidae 7% Tanaidacea of Clarion-Clipperton Fracture Zone
Cheliasetosatanais spinimaxillipedus Larsen & Araujo-Silva, 2014 Paranartrurella sp. fam: Colle eidae fam.: incertae sedis Tanaidacea of Clarion-Clipperton Fracture Zone
Agathotanais sp. Agathotanais Agathotanais manganus ahyongi Larsen, 1999 Larsen, 1999 Tanaidacea of Clarion-Clipperton Fracture Zone
Stenotanais arenasi Stenotanais hamicauda Larsen & Araujo-Silva, 2011 Bird & Holdich, 1984 Tanaidacea of Clarion-Clipperton Fracture Zone
Typhlotanais froufusae Larsen & Araujo-Silva, 2014 IceAGE (Icelandic marine Animals: Genetic and Ecology) Senckenberg Research institute-University of Iceland; September 2011
supranet
codend
epinet COI SEQUENCES
IceAGEIceAGE – 141 COI sequences - 112 GenBank - 29 COI sequences
IceAGE = 4.8 x more COI sequences
is cool! collecting and preservation
• codend – washed with water precooled to 4˚C • sieve 0.3 mm • preserved in ethanol precooled to -20˚C • stored in -20˚C • ethanol exchanged a er 24 hours • samples sorted on ice • cool chain*
* At each stage (collec ng, washing, preserving, storing, iden fing, transpor ng etc.) the sample/ material has been kept cold
Riehl et al. (2014) Neotanaidomorpha COI; phyml maximum likelihood
Apseudomorpha
Tanaoida Tanaidomorpha
Paratanaoida Tanaidacea IntKey – Spała 2013
DELTA – DEscription Language for Taxononomy http://delta-intkey.com/
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