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Postembryonic ontogeny and functional anatomy of the ligamentum mandibulo‐hyoideum and the ligamentum interoperculo‐mandibulare, with notes on the opercular bones and some other cranial elements in Salmo gairdneri Richardson, 1836 (Teleostei: Salmonidae)
Author(s) -
Verraes Walter
Publication year - 1977
Publication title -
journal of morphology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.652
H-Index - 74
eISSN - 1097-4687
pISSN - 0362-2525
DOI - 10.1002/jmor.1051510106
Subject(s) - ontogeny , biology , anatomy , salmo , hatching , fish <actinopterygii> , ecology , fishery , genetics
This study deals with the development of the opercular bones the ligamentum mandibulo‐hyoideum, the ligamentum interoperculo‐mandibulare and with some aspects of the development of the ceratohyale and the cartilago meckeli during postembryonic ontogeny of Salmo gairdneri (rainbow trout). It is stated that the ligamentum mandibulo‐hyoideum is present from hatching onward, while the development of the ligamentum interoperculo‐mandibulare appears during the period of active feeding. Some functional reasons are proposed to explain these facts. It is further suggested that the opercular bones develop under influence of the opercular muscles.