Ochi, Haruki. 1993. "Maintenance of separate territories for mating and feeding by males of a maternal mouthbrooding cichlid, Gnathochromis pfefferi in Lake Tanganyika". Japanese Journal of Ichthyology. 40(2):173-182 (crc03801) (Kurzfassung)
Ochi, Haruki. 1993. "Mate monopolization by a dominant male in a multi-male social group of a mouthbrooding cichlid, Ctenochromis horei". Japanese Journal of Ichthyology. 40(2):209-218 (crc03800) (Kurzfassung)
Ochi, Haruki & Y. Yanagisawa, K. Omori. 1995. "Intraspecific brood-mixing of the cichlid fish Perissodus microlepis in Lake Tanganyika". Environmental Biology of Fishes. 43(2):201-206. DOI: 10.1007/BF00002492 (crc03998) (Kurzfassung)
Ochi, Haruki & Y. Yanagisawa. 1996. "Interspecific brood-mixing in Tanganyika cichlids". Environmental Biology of Fishes. 45(2):141-149. DOI: 10.1007/BF00005227 (crc01310) (Kurzfassung)
Ochi, Haruki. 1996. "Mating systems of two midwater-spawning cichlids, Cyprichromis microlepidotus and Paracyprichromis brieni, in Lake Tanganyika". Ichthyological Research. 43(3):239-246. DOI: 10.1007/BF02347596 (crc06024) (Kurzfassung)
Ochi, Haruki & Y. Yanagisawa. 1998. "Commensalism between cichlid fishes through differential tolerance of guarding parents towards intruders". Journal of Fish Biology. 52(5):985-996. DOI: 10.1111/j.1095-8649.1998.tb00598.x (crc01311) (Kurzfassung)
Ochi, Haruki & Y. Sato, Y. Yanagisawa. 1999. "Obligate feeding of cichlid eggs by Caecomastacembelus zebratus in Lake Tanganyika". Journal of Fish Biology. 54(2):450–459. DOI: 10.1111/j.1095-8649.1999.tb00843.x (crc03995) (Kurzfassung)
Ochi, Haruki & Y. Yanagisawa. 1999. "Sand-transfer behavior outside the nest by guarding parents of the Tanganyika cichlid, Neolamprologus caudopunctatus". Ichthyological Research. 46(4):419-422. DOI: 10.1007/BF02673984 (crc03996)
Ochi, Haruki & Y. Yanagisawa. 2005. "Farming-out of offspring is a predominantly male tactics in a biparental mouthbrooding cichlid Perrisodus mircolepis". Environmental Biology of Fishes. 73(3):335-340. DOI: 10.1007/s10641-005-2139-2 (crc03997) (Kurzfassung)
Ochi, Haruki & H. Hata, M. Hori. 2007. "Advantage of harmlessness in gaining preferential access to a heterospecific territory". Journal of Fish Biology. 71(2):399–410. DOI: 10.1111/j.1095-8649.2007.01493.x (crc03994) (Kurzfassung)
Ochi, Haruki & T. Takeyama, Y. Yanagisawa. 2009. "Increased energy investment in testes following territory acquisition in a maternal mouthbrooding cichlid". Ichthyological Research. 56:227–231. DOI: 10.1007/s10228-008-0088-4 (crc05098) (Kurzfassung)
Ochi, Haruki & S. Awata. 2009. "Resembling the juvenile colour of host cichlid facilitates access of the guest cichlid to host territory". Behaviour. 146(6):741-756. DOI: 10.1163/156853909X446181 (crc02642) (Kurzfassung)
Ochi, Haruki & S. Awata, H. Hata, M. Kohda. 2017. "A Tanganyikan cichlid Neolamprologus mustax selectively exploits territories of another cichlid Variabilichromis moorii due to its inter-individual variation in aggression". Hydrobiologia. 791(1):103–114. DOI: 10.1007/s10750-016-2822-7 (crc08083) (Kurzfassung)