66:
41:
272:, they are striking looking, golden-yellow to dark green or brown, deep-bodied fish with dark green to black mottling. Curiously, Mary River cod have a slightly shorter, thicker caudal peduncle (tail wrist) than the other cod species.
330:
and lakes Dyer (Bill Gunn dam) and
Clarendon- the fish is a no-take species, and any caught should be carefully released. A strict bag limit of one fish with a minimum size of 50 cm applies to the stocked impoundments.
346:
As of 2010, after studies of mitochondrial and nuclear DNA, the Mary River cod has been raised to full species status. This research reveals the Mary River cod's closest relative is the eastern freshwater cod
285:
261:
The Mary River cod is a large fish recorded up to almost 40 kg and 120 cm in the early years of
European settlement, but now are mostly less than 5 kg and 70 cm.
691:
717:
513:
797:
665:
537:
Nock C.J., Elphinstone M.S., Rowland S.J. and
Baverstock, P.R. (2010). Phylogenetics and revised taxonomy of the Australianfreshwater cod genus,
812:
756:
487:
326:
Outside of a few stocked
Queensland impoundments- upstream of the walls of Cressbrook, Hinze, Maroon, Moogerah, North Pine, Somerset, and
422:
237:. Mary River cod are one of Australia's most endangered freshwater fishes and are notable for being the most northerly of the four
323:
cod species, as it has with all its close relatives. It is estimated that just 600 individuals survived in the wild in the 1980s.
807:
769:
45:
817:
352:
574:
Simpson, R.R. and
Mapleston, A.J. (2002). Movements and Habitat Use by the Endangered Australian Freshwater Mary River cod,
65:
761:
626:
722:
253:
The species is very territorial, staying in the same spot for 98% of the time, leaving only to feed and breed.
802:
560:, an endangered species of freshwater cod (Pisces: Percichthyidae) from the Clarence River System, NSW, and
226:
594:
269:
247:
396:
160:
176:
774:
30:
281:
185:
60:
631:
709:
696:
743:
639:
339:
Taxonomically, the Mary River cod was originally described as a subspecies of the Murray cod,
291:
Incredibly abundant at the time of the first
European settlement, Mary River Cod were grossly
748:
391:
296:
730:
373:
319:
and weirs blocking migration, rapidly caught up with this large, slow-growing, long-lived
222:
127:
458:
239:
137:
107:
791:
704:
418:
382:
312:
50:
644:
488:"Saving the endangered Mary River cod a dangerous occupation, but a labour of love"
327:
514:"Fishers fined for ignoring Mary River bans during endangered cod breeding season"
678:
304:
117:
617:
292:
265:
230:
308:
234:
77:
315:, destruction of riparian vegetation and cattle trampling river banks, and
735:
652:
611:
431:
97:
657:
243:
cods found or once found in coastal river systems of eastern
Australia.
670:
288:
and is estimated to only occur in less than 30% of its historic range.
218:
683:
87:
588:
246:
The endangered status of the fish was one of the reasons that the
592:
316:
286:
Environment
Protection and Biodiversity Conservation Act 1999
372:
Brooks, S.; Butler, G.; Kennard, M.; Espinoza, T. (2019).
564:, a new subspecies from the Mary River System, QLD.
601:
397:
10.2305/IUCN.UK.2019-3.RLTS.T122906177A123382286.en
299:by the early European settlers and, as with other
343:based on studies of muscle proteins and enzymes.
8:
589:
459:"Mary River Cod, Maccullochella mariensis"
39:
20:
395:
452:
450:
448:
446:
444:
442:
512:Nichols, Jennifer (26 September 2023).
364:
303:cods, were even used as pig feed. This
486:Nichols, Jennifer (29 January 2018).
481:
479:
7:
383:IUCN Red List of Threatened Species
14:
798:IUCN Red List endangered species
566:Records of the Australian Museum
280:The Mary River Cod is listed as
64:
580:Environmental Biology of Fishes
576:Maccullochella peelii mariensis
195:Maccullochella peelii mariensis
543:Marine and Freshwater Research
264:Very similar in appearance to
1:
813:Freshwater fish of Queensland
457:Gomon, Martin; Bray, Dianne.
307:, combined with the massive
834:
390:: e.T122906177A123382286.
250:was not able to be built.
191:
184:
166:
159:
61:Scientific classification
59:
37:
28:
23:
632:Maccullochella_mariensis
603:Maccullochella mariensis
435:. February 2014 version.
425:Maccullochella mariensis
421:; Pauly, Daniel (eds.).
376:Maccullochella mariensis
214:Maccullochella mariensis
170:Maccullochella mariensis
808:Mary River (Queensland)
818:Fish described in 1993
556:Rowland, S.J. (1993).
295:with nets, lines, and
270:eastern freshwater cod
248:Traveston Crossing Dam
225:native to the coastal
341:Maccullochella peelii
311:of their habitats by
558:Maccullochella ikei
463:Fishes of Australia
349:Maccullochella ikei
229:system of southern
31:Conservation status
562:M.peelii mariensis
541:(Percichthyidae).
785:
784:
744:Open Tree of Life
595:Taxon identifiers
205:
204:
199:
152:M. mariensis
54:
825:
778:
777:
765:
764:
752:
751:
739:
738:
726:
725:
713:
712:
700:
699:
687:
686:
674:
673:
661:
660:
648:
647:
635:
634:
622:
621:
620:
590:
549:
535:
529:
528:
526:
524:
509:
503:
502:
500:
498:
483:
474:
473:
471:
469:
454:
437:
436:
415:
409:
408:
406:
404:
399:
369:
197:
172:
69:
68:
48:
43:
42:
21:
833:
832:
828:
827:
826:
824:
823:
822:
788:
787:
786:
781:
773:
768:
760:
755:
747:
742:
734:
731:Observation.org
729:
721:
716:
708:
703:
695:
690:
682:
677:
669:
664:
656:
651:
643:
638:
630:
625:
616:
615:
610:
597:
553:
552:
536:
532:
522:
520:
511:
510:
506:
496:
494:
485:
484:
477:
467:
465:
456:
455:
440:
417:
416:
412:
402:
400:
371:
370:
366:
361:
337:
278:
259:
223:temperate perch
180:
174:
168:
155:
63:
55:
44:
40:
33:
24:Mary River Cod
17:
16:Species of fish
12:
11:
5:
831:
829:
821:
820:
815:
810:
805:
803:Maccullochella
800:
790:
789:
783:
782:
780:
779:
766:
753:
740:
727:
714:
701:
688:
675:
662:
649:
636:
623:
607:
605:
599:
598:
593:
587:
586:
572:
551:
550:
539:Maccullochella
530:
504:
475:
438:
419:Froese, Rainer
410:
363:
362:
360:
357:
353:Clarence River
336:
335:Classification
333:
321:Maccullochella
301:Maccullochella
277:
274:
258:
255:
240:Maccullochella
209:Mary River cod
203:
202:
201:
200:
189:
188:
182:
181:
175:
164:
163:
157:
156:
149:
147:
143:
142:
139:Maccullochella
135:
131:
130:
128:Percichthyidae
125:
121:
120:
115:
111:
110:
108:Actinopterygii
105:
101:
100:
95:
91:
90:
85:
81:
80:
75:
71:
70:
57:
56:
38:
35:
34:
29:
26:
25:
15:
13:
10:
9:
6:
4:
3:
2:
830:
819:
816:
814:
811:
809:
806:
804:
801:
799:
796:
795:
793:
776:
771:
767:
763:
758:
754:
750:
745:
741:
737:
732:
728:
724:
719:
715:
711:
706:
702:
698:
693:
689:
685:
680:
676:
672:
667:
663:
659:
654:
650:
646:
641:
637:
633:
628:
624:
619:
613:
609:
608:
606:
604:
600:
596:
591:
584:
581:
577:
573:
570:
567:
563:
559:
555:
554:
547:
544:
540:
534:
531:
519:
515:
508:
505:
493:
489:
482:
480:
476:
464:
460:
453:
451:
449:
447:
445:
443:
439:
434:
433:
428:
426:
420:
414:
411:
398:
393:
389:
385:
384:
379:
377:
368:
365:
358:
356:
354:
350:
344:
342:
334:
332:
329:
328:Wivenhoe Dams
324:
322:
318:
314:
313:land clearing
310:
306:
302:
298:
294:
289:
287:
283:
275:
273:
271:
267:
262:
256:
254:
251:
249:
244:
242:
241:
236:
232:
228:
224:
220:
216:
215:
210:
198:Rowland, 1993
196:
193:
192:
190:
187:
183:
178:
173:
171:
165:
162:
161:Binomial name
158:
154:
153:
148:
145:
144:
141:
140:
136:
133:
132:
129:
126:
123:
122:
119:
116:
113:
112:
109:
106:
103:
102:
99:
96:
93:
92:
89:
86:
83:
82:
79:
76:
73:
72:
67:
62:
58:
52:
47:
36:
32:
27:
22:
19:
602:
582:
579:
575:
568:
565:
561:
557:
545:
542:
538:
533:
521:. Retrieved
517:
507:
495:. Retrieved
491:
466:. Retrieved
462:
430:
424:
413:
401:. Retrieved
387:
381:
375:
367:
348:
345:
340:
338:
325:
320:
300:
290:
279:
276:Conservation
263:
260:
252:
245:
238:
213:
212:
208:
206:
194:
169:
167:
151:
150:
138:
18:
679:iNaturalist
523:22 November
497:22 November
468:3 September
403:19 November
305:overfishing
257:Description
118:Perciformes
792:Categories
548:: 980–991.
359:References
297:explosives
293:overfished
284:under the
282:Endangered
266:Murray cod
231:Queensland
227:Mary River
46:Endangered
710:122906177
351:) of the
309:siltation
235:Australia
146:Species:
84:Kingdom:
78:Eukaryota
697:11462790
653:FishBase
618:Q6780612
612:Wikidata
585:401–410.
571:121-145.
518:ABC News
492:ABC News
432:FishBase
355:system.
186:Synonyms
124:Family:
98:Chordata
94:Phylum:
88:Animalia
74:Domain:
51:IUCN 3.1
775:1011073
671:5962163
219:species
217:) is a
177:Rowland
134:Genus:
114:Order:
104:Class:
49: (
749:538665
736:906485
723:135763
684:530607
179:, 1993
770:WoRMS
762:83806
757:SPRAT
692:IRMNG
658:26479
645:3WXQF
718:NCBI
705:IUCN
666:GBIF
525:2023
499:2023
470:2014
405:2021
388:2019
317:dams
268:and
207:The
640:CoL
627:AFD
583:65:
578:.
569:45:
392:doi
221:of
794::
772::
759::
746::
733::
720::
707::
694::
681::
668::
655::
642::
629::
614::
546:61
516:.
490:.
478:^
461:.
441:^
429:.
386:.
380:.
233:,
527:.
501:.
472:.
427:"
423:"
407:.
394::
378:"
374:"
347:(
211:(
53:)
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.