Parameter and units Abbreviation Description Potential indicator of: Carbon isotopes (‰) δ13C The relative concentration of the carbon isotope 13C compared to the more abundant isotope 12C, expressed relative to the carbon isotopic composition of a standard (VPDB). Organic matter source Nitrogen isotopes (‰) δ15N The relative concentration of the nitrogen isotope 15N compared to the more abundant isotope 14N, expressed relative to the nitrogen isotope composition of atmospheric nitrogen gas. Organic matter source Total organic carbon and Total nitrogen (%) TOC TN TOC and TN refer to the amount of organic carbon and total nitrogen in sediments respectively. Organic matter concentration Surface area normalised TOC (mg m-2) OC:SA TOC concentrations normalised to the specific surface area (SA) of sediments. Organic matter concentration Carbon to nitrogen ratios Calculated from the ratio of TOC to TN. Organic matter source and quality
_D1 (field) Surface sediment cm) was spooned into four Falcon vials. (ATRF) Pore waters were removed as soon as possible after collection (see C_C2). Residual sediment was frozen for transport to the laboratory. Organic and inorganic elements and C and N isotopes _S1 Notation used to denote specimens picked from grab samples. (field)The specimens were placed in plastic bags (ATRF) Samples frozen. Major, trace and rare earth elements
Vessels and Crews Appendix Table A. Vessels used during the shallow water survey according to date, and the people that crewed the vessels. Vessel (Agency) Skipper Other Participants July Mallara (NT Fisheries) Wayne Baldwin Lynda Radke, Neil Smit, Quentin Allsop and Shane Penny July Jon Lawrie (NT DENR) Daniel Low Choy Lynda Radke, Neil Smit and Nelson Tinoco July 18 – 21/2016 Gopu (NT Fisheries) Wayne Baldwin Radke, Neil Smit, Nelson Tinoco and Kyle Lewfat July 25- 28/2016 Jon Lawrie (NT DENR) Daniel Low Choy Lynda Radke, Nelson Tinoco, Kyle Lewfat and Alan Mummery
Aug Jon Lawrie (NT DENR) Daniel Low Choy Ray Chatto Aug Jon (Dolphin boat) (NT DENR) Daniel Low Choy Lynda Radke, Nelson Tinoco, Rachel Groome and Kyle Lewfat Aug Jon Lawrie (NT DENR) Daniel Low Choy Lynda Radke, Nelson Tinoco and Steven Dawson Aug 22/16 Jon Lawrie (NT DENR) Daniel Low Choy Lynda Radke and Kyle Lewfat Sept 2/2016 Mallara (NT Fisheries) Wayne Baldwin Lynda Radke, Shane Penny, Chris Errily and Sean Fitzpatrick Sept 7/2016/ Sept 8/2016 Mallara (NT Fisheries)/ Porosis (NT Parks and Wildlife) Wayne Baldwin/ Stewart Weorle Lynda Radke, Mark Grubert and Neil Smit
6 9 2614123 GA0356/006BC009 CORE BOX 130.6915 -12.40115 6.5 5/7/2016 6 9 2614125 GA0356/006BC010 CORE BOX 130.691583 -12.40133 6.2 5/7/2016 7 20 2614131 GA0356/007BC011 CORE BOX 130.812917 -12.37485 8.4 7/7/2016 7 20 2614133 GA0356/007BC012 CORE BOX 130.813067 -12.37467 8.6 7/7/2016 7 20 2614135 GA0356/007BC013 CORE BOX 130.813117 -12.37498 8.5 7/7/2016 8 21 2614138 GA0356/008BC014 CORE BOX 130.814867 -12.36243 6.8 7/7/2016 9 100 2614140 GA0356/009BC015 CORE BOX 131.0254 -12.22497 1.7 11/7/2016 10 98 2614142 GA0356/010BC016 CORE BOX 131.02201 -12.22641 3.5 11/7/2016 11 92 2614144 GA0356/011BC017 CORE BOX 131.0254 -12.22497 1.7 11/7/2016 11 92 2614146 GA0356/011BC018 CORE BOX -12.2489 7.3 11/7/2016 12 90 2614152 GA0356/012BC019 CORE BOX 131.01261 -12.25556 7.2 11/7/2016 12 90 2614158 GA0356/012BC020 CORE BOX -12.25559 7.1 11/7/2016 13 71 2614160 GA0356/013GR001 GRAB SHIPEK 130.99093 -12.21827 11.3 11/7/2016
13 71 2614162 GA0356/013BC021 CORE BOX 130.99093 -12.21838 11.4 11/7/2016 14 72 2614168 GA0356/014BC022 CORE BOX 130.9917 -12.21691 11.5 12/7/2016 14 72 2614170 GA0356/014BC023 CORE BOX 130.99173 -12.21684 11.6 12/7/2016 15 79 2614175 GA0356/015GR002 GRAB SHIPEK 130.9974 -12.21517 9.6 12/7/2016 15 79 2614177 GA0356/015GR003 GRAB SHIPEK 130.99733 -12.21514 9.7 12/7/2016 9 100 2614181 GA0356/009GR004 GRAB SHIPEK 131.02539 -12.22499 1.4 12/7/2016 16 64 2614186 GA0356/016GR005 GRAB SHIPEK 130.97252 3.3 12/7/2016 16 64 2614188 GA0356/016GR006 GRAB SHIPEK 130.97253 -12.31938 3.4 13/7/2016 16 64 2614192 GA0356/016GR007 GRAB SHIPEK 130.97251 3.5 13/7/2016 17 65 2614194 GA0356/017GR008 GRAB SHIPEK -12.30399 5.8 13/7/2016 18 66 2614196 GA0356/018GR009 GRAB SHIPEK 130.9778 -12.30009 6.1 13/7/2016 18 66 2614198 GA0356/018GR010 GRAB SHIPEK 130.97778 -12.30008 6.1 13/7/2016 19 50 2614203 GA0356/019GR011 GRAB SHIPEK 130.92985 -12.32999 2.5 13/7/2016
19 50 2614205 GA0356/019GR012 GRAB SHIPEK 130.92985 -12.32999 2.6 15/07/2016 20 28 2614210 GA0356/020GR013 GRAB SHIPEK 130.8298833 -12.40605 1.9 18/7/2016 20 28 2614212 GA0356/020GR014 GRAB SHIPEK 130.83005 -12.40605 2 18/7/2016 20 28 2614216 GA0356/020GR015 GRAB SHIPEK 130.8298833 -12.40617 1.9 18/7/2016 21 32 2614219 GA0356/021GR016 GRAB SHIPEK 130.84565 -12.3924 0.6 18/7/2016 21 32 2614223 GA0356/021GR017 GRAB SHIPEK 130.8456167 -12.39233 0.6 18/7/2016 21 32 2614225 GA0356/021GR018 GRAB SHIPEK 130.8456667 -12.39247 0.5 18/7/2016 22 24 2614228 GA0356/022GR019 GRAB SHIPEK 130.8243833 7 18/7/2016 22 24 2614230 GA0356/022GR020 GRAB SHIPEK 130.8244 -12.37778 6.8 18/7/2016 22 24 2614234 GA0356/022GR021 GRAB SHIPEK 130.8245167 -12.37773 6.8 18/7/2016 23 25 2614237 GA0356/023GR022 GRAB SHIPEK 130.8257833 -12.35095 5.2 18/7/2016 23 25 2614239 GA0356/023GR023 GRAB SHIPEK 130.82585 -12.3509 5.2 18/7/2016 24 17 2614243 GA0356/024GR023 GRAB SHIPEK 130.7968833 -12.35487 9 19/7/2016
24 17 2614249 GA0356/024GR024 GRAB SHIPEK 130.7970167 -12.35472 9 19/7/2016 25 19 2614251 GA0356/025GR025 GRAB SHIPEK 130.80735 -12.34727 3.5 19/7/2016 25 19 2614257 GA0356/025GR026 GRAB SHIPEK 130.80735 -12.3473 3.5 19/7/2016 26 22 2614259 GA0356/026GR027 GRAB SHIPEK 130.81635 -12.3426 8.4 19/7/2016 26 22 2614261 GA0356/026GR028 GRAB SHIPEK 130.8163667 -12.34263 8.4 19/7/2016 26 22 2614265 GA0356/026GR029 GRAB SHIPEK 130.8163667 -12.34263 8.4 19/7/2016 27 23 2614267 GA0356/027GR030 GRAB SHIPEK 130.82325 11.2 19/7/2016 28 23 2614269 GA0356/027GR031 GRAB SHIPEK 130.8231167 -12.3369 11 19/7/2016 28 36 2614273 GA0356/028GR032 GRAB SHIPEK 130.8568667 6 20/7/2016 28 36 2614275 GA0356/028GR033 GRAB SHIPEK 130.8570167 -12.36143 6 20/7/2016 29 36 2614279 GA0356/028GR034 GRAB SHIPEK 130.85685 -12.36152 5.9 20/7/2016 29 37 2614282 GA0356/029GR035 GRAB SHIPEK 130.85685 5.9 20/7/2016 29 37 2614284 GA0356/029GR036 GRAB SHIPEK 130.8580167 -12.36242 5.7 20/7/2016
35 78 2614329 GA0356/035GR049 GRAB SHIPEK 130.99793 5.6 25/7/2016 35 86 2614335 GA0356/036GR050 GRAB SHIPEK 131.0069 -12.306 5.9 25/7/2016 36 86 2614337 GA0356/036BC024 CORE BOX 131.00692 -12.30602 5.7 25/7/2016 37 81 2614343 GA0356/037GR051 GRAB SHIPEK 130.999 -12.313 3.5 25/7/2016 37 81 2614349 GA0356/037GR052 GRAB SHIPEK 130.999 -12.31298 3.5 25/7/2016 38 91 2614351 GA0356/038GR053 GRAB SHIPEK 131.01449 4 26/7/2016 38 91 2614357 GA0356/038GR054 GRAB SHIPEK 131.01451 -12.3345 4 26/7/2016 39 99 2614359 GA0356/039GR055 GRAB SHIPEK 131.0256 -12.3299 3.3 26/7/2016 39 99 2614361 GA0356/039GR056 GRAB SHIPEK 131.02562 -12.32989 3.2 26/7/2016 40 89 2614367 GA0356/040GR057 GRAB SHIPEK 131.01413 1.9 26/7/2016 40 89 2614369 GA0356/040GR058 GRAB SHIPEK 131.01413 -12.3248 1.6 27/7/2016 40 89 2614373 GA0356/040GR059 GRAB SHIPEK 131.01413 -12.32479 1.6 27/7/2016 40 89 2614375 GA0356/040GR060 GRAB SHIPEK 131.01408 -12.3262 0 27/7/2016
41 53 2614377 GA0356/041GR061 GRAB SHIPEK 130.9402 -12.32396 5.9 27/07/2016 41 53 2614379 GA0356/041GR062 GRAB SHIPEK -12.32397 5.9 27/07/2016 41 53 2614383 GA0356/041GR063 GRAB SHIPEK -12.32399 5.9 27/07/2016 42 49 2614385 GA0356/042GR064 GRAB SHIPEK 130.92982 -12.3245 6 28/7/2016 42 49 2614387 GA0356/042GR065 GRAB SHIPEK 130.92982 -12.32451 6 27/07/2016 43 mangrove 2614389 GA0356/043BC025 CORE BOX 130.92074 0.9 28/7/2016 44 Buffalo Ck. 2614396 GA0356/044GR066 GRAB SHIPEK 130.9081 -12.33822 1.8 28/7/2016 44 Buffalo Ck. 2614398 GA0356/044GR067 GRAB SHIPEK 130.90811 1.9 28/7/2016 45 58 2614404 GA0356/045GR068 GRAB SHIPEK 130.96266 -12.34096 2.6 1/8/2016 45 58 2614406 GA0356/045GR069 GRAB SHIPEK 130.9627 -12.34094 2.62 1/8/2016 46 62 2614412 GA0356/046GR070 GRAB SHIPEK 130.96819 -12.34233 0.6 1/8/2016 46 62 2614414 GA0356/046GR071 GRAB SHIPEK 130.96817 -12.34229 0.6 1/8/2016 46 62 2614418 GA0356/046GR072 GRAB SHIPEK 130.96814 -12.34229 0.6 1/8/2016
47 48 2614420 GA0356/047GR073 GRAB SHIPEK 130.92487 -12.32738 3.7 1/8/2016 48 77 2614422 GA0356/048GR074 GRAB SHIPEK -12.16612 1.7 7/8/2016 48 77 2614424 GA0356/048GR075 GRAB SHIPEK 130.99623 -12.16606 1.8 7/8/2016 48 77 2614426 GA0356/048GR076 GRAB SHIPEK 1.8 7/8/2016 49 76 2614430 GA0356/049GR077 GRAB SHIPEK 130.99621 -12.18168 1.7 8/8/2016 49 76 2614432 GA0356/049GR078 GRAB SHIPEK -12.18159 1.6 8/8/2016 49 76 2614436 GA0356/049GR079 GRAB SHIPEK 130.99453 -12.18174 1.6 8/8/2016 50 74 2614438 GA0356/050GR080 GRAB SHIPEK 130.99314 -12.13859 1.6 8/8/2016 50 74 2614440 GA0356/050GR081 GRAB SHIPEK 130.99313 -12.13859 1.5 8/8/2016 51 44 2614446 GA0356/051GR082 GRAB SHIPEK -12.3436 1.4 8/8/2016 51 44 2614448 GA0356/051GR083 GRAB SHIPEK 130.88135 -12.3436 1.4 8/8/2016 52 42 2614454 GA0356/052GR084 GRAB SHIPEK 130.87729 -12.33757 6 9/8/2016 52 42 2614456 GA0356/052GR085 GRAB SHIPEK 130.87735 -12.3376 6 9/8/2016
81 85 2614684 GA0356/081GR146 GRAB SHIPEK 131.00655 -12.27243 4.9 11/9/2016 81 85 2614686 GA0356/081GR147 GRAB SHIPEK 131.0066 -12.2724 4.9 11/9/2016 82 93 2614690 GA0356/082GR148 GRAB SHIPEK 131.0153167 -12.26403 4 11/9/2016 82 93 2614692 GA0356/082GR149 GRAB SHIPEK 131.0153833 -12.26405 3.9 11/9/2016 83 96 2614697 GA0356/083GR150 GRAB SHIPEK 131.0201333 -12.26313 2.3 11/9/2016 83 96 2614699 GA0356/083GR151 GRAB SHIPEK 131.0200667 -12.26322 2.3 11/9/2016 84 96 2614703 GA0356/083GR152 GRAB SHIPEK 131.0201333 -12.26325 2.1 11/9/2016 84 34 2614705 GA0356/084GR153 GRAB SHIPEK 130.8487667 -12.33835 7.6 12/9/2016 84 34 2614707 GA0356/084GR154 GRAB SHIPEK 130.8486833 -12.33825 7.9 12/9/2016 85 35 2614711 GA0356/085GR155 GRAB SHIPEK 130.85595 -12.32778 8.8 12/9/2016 85 35 2614716 GA0356/085GR156 GRAB SHIPEK 130.8559667 -12.32788 8.9 12/9/2016 86 40 2614718 GA0356/086GR157 GRAB SHIPEK 130.8633 4.5 12/9/2016 86 40 2614720 GA0356/86GR158 GRAB SHIPEK 130.86335 -12.34405 4.5 12/9/2016
87 41 2614725 GA0356/087GR159 GRAB SHIPEK 130.86895 -12.3266 8.2 12/9/2016 87 41 2614727 GA0356/087GR160 GRAB SHIPEK 130.8689667 -12.32663 8.2 12/9/2016 88 43 2614731 GA0356/088GR161 GRAB SHIPEK 130.8811 -12.31882 7.7 12/9/2016 89 Howard River catchment soil 2614733 GA0356/089SRS001 SURFACE REGOLITH SAMPLE 131.12387 -12.31591 N/A 14/09/2016 90 Howard catchment soil 2614737 GA0356/090SRS002 SURFACE REGOLITH SAMPLE 131.13382 -12.43631 N/A 14/09/2016 91 Blackmore River catchment soil 2614741 GA0356/091SRS003 SURFACE REGOLITH SAMPLE -12.74004 N/A 14/09/2016 92 Kings River mouth 2614745 GA0356/092GR162 GRAB SHIPEK 130.94885 -12.34608 3.1 14/9/2016 92 Kings River mouth 2614751 GA0356/092GR163 GRAB SHIPEK 130.9490167 -12.34585 3 14/9/2016 93 63 2614753 GA0356/093GR164 GRAB SHIPEK 130.96825 -12.29488 8 14/9/2016 93 63 2614758 GA0356/093GR165 GRAB SHIPEK 130.96795 -12.295 8.1 14/9/2016 94 52 2614760 GA0356/094BC031 CORE BOX 130.93835 -12.3058 8.8 14/9/2016 94 52 2614762 GA0356/094BC032 CORE BOX 130.93845 -12.30568 8.5 14/9/2016 95 52 2614768 GA0356/095BC033 CORE BOX 130.9382333 6.9 14/9/2016
85 2614713 2614711 GA0356/085GR155_C1 GRAB SHIPEK 0.00 0.02 130.85595 -12.327783 8.8 12/9/2016 86 2614722 2614720 GA0356/86GR158_C1 GRAB SHIPEK 0.00 0.02 130.86335 -12.34405 4.5 12/9/2016 87 2614729 2614727 GA0356/087GR160_C1 GRAB SHIPEK 0.00 0.02 130.8689667 -12.326633 8.2 12/9/2016 92 2614747 2614745 GA0356/092GR162_C1 GRAB SHIPEK 0.00 0.02 130.94885 -12.346083 3.1 14/9/2016 93 2614755 2614753 GA0356/093GR164_C1 GRAB SHIPEK 0.00 0.02 130.96825 -12.294883 8 14/9/2016 94 2614764 2614762 GA0356/094BC032_C1 CORE BOX 0.00 0.02 130.93845 -12.305683 8.5 14/9/2016 95 2614771 2614768 GA0356/095BC033_C1 CORE BOX 0.00 0.02 130.9382333 -12.31885 6.9 14/9/2016
74 2614638 2614635 GA0356/074GR131_C3 GRAB SHIPEK 130.9994 -12.34275 1.3 8/9/2016 75 2614645 2614643 GA0356/075GR133_C3 GRAB SHIPEK 130.99358 -12.335733 1.4 8/9/2016 78 2614665 2614662 GA0356/078GR140_C3 GRAB SHIPEK 130.96828 -12.31235 5.4 8/9/2016 79 2614674 2614671 GA0356/079GR143_C3 GRAB SHIPEK -12.288083 3.7 11/9/2016 80 2614682 2614678 GA0356/080GR145_C3 GRAB SHIPEK 131.00367 -12.270767 5.6 11/9/2016 83 2614702 2614699 GA0356/083GR151_C3 GRAB SHIPEK 131.02007 -12.263217 2.3 11/9/2016 85 2614714 2614711 GA0356/085GR155_C3 GRAB SHIPEK 130.85595 -12.327783 8.8 12/9/2016 86 2614723 2614720 GA0356/86GR158_C3 GRAB SHIPEK -12.34405 4.5 12/9/2016 92 2614749 2614745 GA0356/092GR162_C3 GRAB SHIPEK -12.346083 3.1 14/9/2016 93 2614756 2614753 GA0356/093GR164_C3 GRAB SHIPEK 130.96825 -12.294883 8 14/9/2016 94 2614766 2614762 GA0356/094BC032_C3 CORE BOX 130.93845 -12.305683 8.5 14/9/2016
Metadata for specimen sample Station # Sample # Parent sample # Sample ID Sample type Longitude Latitude Water depth (m) Acquire Date (UTM) 40 2614376 2614375 GA0356/040GR060_S1 GRAB SHIPEK 131.01408 -12.3262 0 27/7/2016