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Unusual testicular accessory organs, the testicular blind pouches of blennies (Teleostei, Blenniidae). Fine structure, (enzyme‐) histochemistry and possible functions
Author(s) -
Lahnsteiner F.,
Nussbaumer B.,
Patzner R. A.
Publication year - 1993
Publication title -
journal of fish biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.672
H-Index - 115
eISSN - 1095-8649
pISSN - 0022-1112
DOI - 10.1111/j.1095-8649.1993.tb00324.x
Subject(s) - biology , immunohistochemistry , secretion , teleostei , medicine , endocrinology , enzyme , zoology , anatomy , fish <actinopterygii> , biochemistry , fishery , immunology
The testicular blind pouches (TBPs) of Lipophrys canevae and Solaria pavo have an annual reproductive cycle with an active secretion phase during spawning, a regression phase correlated with necrotic processes during post‐spawning, an inactive regeneration phase during inter‐spawning and prespawning. As revealed by fine structure and enzyme‐histochemistry the TBPs of L. canevae and S. pavo are involved in the production of steroid glucuronides, which possibly act as pheromones, Further functions are in the secretion of small amounts of sialomuciri and in lytic activity.