Diet and trophic structure of the fish assemblage in the mid-course of the Teles Pires River, Tapajós River basin, Brazil Author Dary, Eurizângela P. Programa de Pós-Graduação em Biologia de Água Doce e Pesca Interior, Instituto Nacional de Pesquisas da Amazônia-INPA, Av. André Araújo, 2036, Petrópolis, 69067 - 375, Manaus, AM, Brazil euridary@gmail.com Author Ferreira, Efrem Coordenação de Biodiversidade-COBIO, Instituto Nacional de Pesquisas da Amazônia-INPA, Av. André Araújo, 2036, Petrópolis, 69067 - 375, Manaus, AM, Brasil efrem@inpa.gov.br Author Zuanon, Jansen Coordenação de Biodiversidade-COBIO, Instituto Nacional de Pesquisas da Amazônia-INPA, Av. André Araújo, 2036, Petrópolis, 69067 - 375, Manaus, AM, Brasil zuanon@inpa.gov.br Author Röpke, Cristhiana P. Programa de Pós-Graduação em Biologia de Água Doce e Pesca Interior, Instituto Nacional de Pesquisas da Amazônia-INPA, Av. André Araújo, 2036, Petrópolis, 69067 - 375, Manaus, AM, Brazil & Faculdade de Ciências Agrárias, Universidade Federal do Amazonas, 69077 - 000 Manaus, AM, Brazil. krikaropke@gmail.com text Neotropical Ichthyology 2017 2017-12-18 15 4 e 160173 e 160173 http://dx.doi.org/10.1590/1982-0224-20160173 journal article 10.1590/1982-0224-20160173 1982-0224 20121026

Tab. 1. Dietary compositions (IAi%) and trophic categories (TC) of th especies in the mid-course of the Teles Pires River. Trophic categories are presented in abbreviation: Carnivores (Carn.), Detritivores (Det.), Herbivores (Herb.), Insectivores (Inset.), Invertivores (Invert.), Omnivores (Omniv.) and Piscivores (Pisc.). Asterisks indicate that the trophic group was inferred based on published information and a black dots indicates that the item had IAi%<0.01. N= number of stomachs containing food resources; “Terrestrial invertebrates”: Araneae and Scolopendromorpha; “Aquatic invertebrates”: Cladocera, Conchostraca, Copepoda, Hydracarina, Ostracoda, Molusca, Palaemonidae shrimp (Decapoda), unidentified invertebrate eggs, Porifera (spicules) and Tecameba; “Others”: Amphibia, feathers, Nematoda, Fungi and unidentified materials.

Species	CT	N	Allochthonous			Autochthonous				Undetermined origin
			Terrestrial insects	Terrestrial invertebrates	Vascular Plants	Algae	Aquatic insects	Aquatic invertebrates	Fish	Detritus	Unidentified insects	Others	Other plants
Acestrocephalus sardina	Pisc.*	8							100
Acestrorhynchus cf. grandoculis	Pisc.*	1							5.00		95.00
Acestrorhynchus microlepis	Pisc.	14	0.01		0.74		0.26		98.96		0.04
Acestrorhynchus sp.	Pisc.*	1
Ageneiosus apiaka	Insect.	108	0.82	•	0.01	•	62.53	0.01	36.57	0.04	•	0.01	•
Ageneiosus inermis	Carn.*	1					100
Ageneiosus sp.	Insect.	6	17.67				55.41		26.89				0.03
Agoniates halecinus	Pisc.	30	13.21				3.61		83.18
Aphanotorulus emarginatus	Det.*	3		0.45		44.38	2.69	30.98		20.43	0.18		0.90
Argonectes longiceps	Omniv.*	1
Auchenipterichthys longimanus	Omniv.*	1
Auchenipterus nuchalis	Insect.	10	17.23				81.78	0.66	0.14				0.19
Bivibranchia notata	Invert.*	1		5.00		10.10	20.00	22.00		42.40		0.50
Boulengerella cuvieri	Pisc.	22	•				•		99.99
Brycon aff. pesu	Insect.	16	66.76	0.13	5.85		8.73	•	13.12		1.33	0.33	3.74
Brycon falcatus	Herb.	4			94.20		0.38		5.42
Brycon pesu	Insect.	24	47.85	0.04	37.34	•	5.50		1.13		0.50	•	7.64
Bryconexodon trombetasi	Pisc.*	1
Bryconops alburnoides	Insect.	117	38.83	0.03	0.63		60.13	0.01	0.07		0.12	0.02	0.16
Bryconops collettei	Carn.*	1	95.00				5.00
Caenotropus labyrinthicus	Invert.	7		0.16	0.13	3.92	32.61	59.55			0.32	3.31
Chalceus epakros	Herb.	6	51.57		5.65		3.50				5.94		33.34
Cichla pinima	Pisc.*	1							100
Crenicichla aff. lugubris	Carn.*	1							100
Crenicichla lugubris	Carn.*	1							100
Curimata acutirostris	Det.*	1
Curimata inornata	Det.*	3
Curimata knerii	Det.*	1
Curimatella dorsalis	Det.*	1
Cynodon septenarius	Pisc.*	1							100
Cyphocharax aff. stilbolepis	Det.	6			5.88	0.83		41.35	5.21	46.61	0.06		0.06
Cyphocharax sp.	Det.*	2
Electrophorus electricus	Pisc.*	1							100
Geophagus aff. altifrons	Invert.	13	0.79		0.10	0.25	34.66	38.08	3.61	9.93	0.01	1.07	11.51
Geophagus sp.	Invert.*	1
Hemiodus aff. semitaeniatus	Omniv.*	3				11.20	9.06	2.64		15.24		0.08	61.78
Hemiodus argenteus	Invert.	5				20.14	19.39	12.12		26.77		7.47	14.12
Hemiodus cf. gracilis	Omniv.*	1				80.00		10.00					10.00
Hemiodus immaculatus	Omniv.*	2
Hemiodus quadrimaculatus	Omniv.*	1
Hemiodus semitaeniatus	Herb.	7			0.03	66.14	0.11	5.09	0.06	10.08	0.86	0.06	17.58
Hemiodus unimaculatus	Herb.	15	0.18		0.45	21.09	7.23	1.95		32.04	4.70		32.35
Hemisorubim platyrhynchos	Pisc.*	4
Hydrolycus armatus	Pisc.	11					0.01		99.97			0.03
Hydrolycus tatauaia	Pisc.	16	0.02		0.01		0.66		99.32
Hypoptopoma cf. gulare	Det.*	1				67.00		33.00
Hypostomus aff. pyrineusi	Det.*	1				11.00	40.00	49.00
Jupiaba polylepis	Insect.	4					95.03		1.66				3.31
Jupiaba sp.	Insect.*	1	40.00										60.00
Laemolyta proxima	Herb.*	1				30.00	70.00
Leporinus affinis	Omniv.*	2
Leporinus brunneus	Omniv.*	2
Leporinus cylindriformis	Omniv.*	1
Leporinus friderici	Omniv.*	3				2.82	5.63	4.23					87.32
Leporinus maculatus	Omniv.*	2
Leporinus sp.	Omniv.*	1				27.00	10.00	6.00		52.00			5.00
Moenkhausia aff. oligolepis	Carn.*	1							100
Moenkhausia cf. lepidura	Carn.*	2	45.86				54.14
Moenkhausia cotinho	Carn.*	6
Moenkhausia grandisquamis	Insect.	23	6.19		0.10		74.60		2.58		0.02	0.06	16.45
Moenkhausia megalops	Omniv.*	3	1.88		5.01	21.28	71.05	0.65				0.13
Moenkhausia sp. "pedunculo curto"	Carn.*	2					70.59						29.41
Moenkhausia sp. "pedunculo longo"	Carn.*	1	1.00				84.00						15.00
Mylesinus cf. paucisquamatus	Herb.	4	4.53				1.70					2.45	91.32
Myleus setiger	Herb.	20	1.51	0.04	72.54	1.28	11.33		0.13		0.14	0.30	12.74
Myloplus asterias	Herb.*	2			98.92						1.08
Myloplus rubripinnis	Herb.	19	0.57		95.38		0.26		•			0.03	3.75
Myloplus schomburgki	Herb.	6			42.73	0.24	12.91	0.05	1.93		2.41	0.16	39.56
Myloplus torquatus	Herb.	101	0.84		88.58	0.12	0.51	0.02	0.43	0.02	•	0.01	9.47
Peckoltia cf. cavatica	Det.*	1
Pimelodus cf. blochii	Carn.*	8
Pimelodus ornatus	Invert.*	3
Plagioscions quamosissimus	Pisc.	9							99.98				0.02
Prochilodus nigricans	Det.*	2				24.98	17.41	20.10		1.99			35.52
Psectrogaster essequibensis	Det.*	2			2.97			2.16		91.89	2.97
Pseudoplatystoma punctifer	Pisc.*	3
Pterodoras granulosus	Omniv.*	1			80.00								20.00
Roeboides aff. descalvadensis	Pisc.	79					8.17		91.79		0.01		0.03
Sartor cf. tucuruiense	Omniv.*	2
Scobinancistrus cf. pariolispos	Invert.*	1
Serrasalmus aff. serrulatus	Pisc.*	3							98.90				1.10
Serrasalmus eigenmanni	Pisc.*	2			90.91				9.09
Serrasalmus manueli	Pisc.*	3	0.55		2.82		3.02	0.11	87.89			0.58	5.04
Serrasalmus rhombeus	Pisc.	28	0.04		0.57		0.16		99.05				0.18
Tetragonopterus chalceus	Insect.	17	1.14		0.29	•	89.24	1.04	4.69			1.73	1.88
Tetragonopterus aff. georgiae	Carn.*	2	45.29				54.71
Tocantinsia piresi	Herb.	19	2.64		81.53		0.84	0.01	7.50		•		7.48
Tometes sp.	Herb.*	1	5.34		4.02		1.92	1.39					87.32
Triportheus albus	Insect.	25	36.48	0.02	17.68		42.11		1.33		•	0.01	2.37
Utiaritichthys sp.	Herb.	10	1.50		15.57	3.44	1.53	0.06	0.49				77.40