Shark would be the most representative of its prey FA profiles. It

Shark will be the most representative of its prey FA profiles. It truly is hence assumed here that the muscle tissue of M. alfredi is representative of its diet, but the extent to which the FA profile of the subdermal connective tissue of R. typus reflects its diet plan is unknown. Specific species of phytoplankton which includes diatoms, and a few macro algae like Rhodophyta can biosynthesise n-6 PUFA, with levels of over 40 (as wt ) of AA recorded [20, 21]. Though phytoplankton and macro algae have been reported in R. typus stomach contents, theyLipids (2013) 48:1029Table three Polyunsaturated fatty acid composition of chondrichthyan, planktivore, massive pelagic and detrivore species P P Species Feeding habitat Tissue nn- AA EPA DHA three six Whale shark–R. typus (mol ) Whale shark–R. typus (wt ) Reef manta ray–M. alfredi (mol ) Reef manta ray–M. alfredi (wt ) Other chondrichthyes Port Jackson shark–Heterodontus portusjacksoni Sandy-backed stingaree–Urolophus bucculentus Southern chimaera–Chimaera fulva Angel shark–Squatina australis Longnose velvet dogfish–Centroselachus crepidater Shortnose spurdog–Squalus megalops South China catshark–Apristurus sinensis Broadnose sevengill shark–Notorynchus cepedianus Planktivores Leatherback turtle–Dermochelys coriacea Jellyfish–Aurelia sp. Finwhale–Balaenoptera physalus Anchovies–Engraulis mordax mordax Big pelagics Dolphin–mixed species Gray whale–E. robustus Ocean sunfish–Mola mola Benthic feeders Sea cucumber–Holothuria scabra Sea urchin–Heliocidaris erythrogramma Dusky rabbitfish–Siganus nebulosus Benthic–deposit feeder Benthic–deposit feeder Benthic–deposit feeder Complete Whole Muscle ten.7 ten.7 18.5 22.6 14.6 20.5 19.1 6.1 12.four 8.2 eight.3 1.three 1.5 0.four 14.six Epipelagic– carnivore Pelagic–planktivore Pelagic–carnivore Muscle Muscle Muscle 29.four ten.8 16.three 18.six 14.2 four.7 7.73 6.4 7.5 eight.eight 7.six 1.2 17.0 Epipelagic– planktivore Epipelagic– planktivore Pelagic–planktivore Pelagic–planktivore Muscle Entire Blubber oil Complete 15.5 34.five 6.7 22.9 17.3 12.2 2.3 4.9 15.five 9.9 0.3 0.four six.1 14.1 1.8 13.five five.7 9.eight 2.74 eight.8 Demersal–carnivore Demersal–carnivore Deep sea–carnivore Demersal–carnivore Deep sea–carnivore Deep sea–carnivore Deep sea–carnivore Deep sea–carnivore Muscle Muscle Muscle Muscle Muscle Muscle Muscle Liver 23.6 32.9 30.4 45.2 39.1 37.5 38.5 23.two 19.4 16.5 11.2 10.five six.6 six.four 6.four 3.2 13.8 12.6 4.7 7.six 4.four three.six three.four 1.7 three.7 3.1 three.4 six.1 2.3 1.2 two.9 three.4 15.four 27.9 23.3 36.five 32.two 32.three 28.9 16.six Epipelagic– planktivore Epipelagic– planktivore Epipelagic– planktivore Epipelagic– planktivore Skin Skin Muscle Muscle 6.Amylase 1 six.PS48 7 13.PMID:23522542 four 14.9 23.eight 25.4 21.0 21.6 16.9 17.8 11.7 11.8 1.1 1.2 1.2 1.2 2.5 2.eight 10.0 11.n-3/n6 0.three 0.three 0.7 0.Reference This study This study This study This study [45] [45] [46] [45] [46] [46] [46] [46]1.2 2.0 2.7 four.three five.9 5.9 six 7.0.9 2.8 2.9 27.8 0.9 *1.eight 2.7 0.five 0.7 0.[17] [25] [47] [48] [18] [49] [50] [19] [19] [19]Data from this study for Rhincodon typus and Manta alfredi are expressed in both mol and wt format, with all literature information as wt EPA eicosapentaenoic acid, DHA docosahexaenoic acid, AA arachidonic acidare assumed to become incidentally ingested [22]. The feeding apparatus and feeding strategy of R. typus and M. alfredi are adapted for targeting bigger prey [23, 24]. There is absolutely no observational evidence of either species targeting phytoplankton, but you’ll find frequent observations of feeding on zooplankton patches. Far more plausibly, n-6 LC-PUFA from phytoplankton could enter.