Open AccessTh e Relationship Between Fish Length and Otolith Size and Weight of the Australian Ancnovy, En-graulis australis (Clupeiformes, Engraulidae), Retrieved from the Food of the Australasian Gannet, Morus serrator (Suliformes, Sulidae), Hauraki Gulf, New Zealand
Author(s) -
Laith A. Jawad,
N. J. Adams
Publication year - 2021
Publication title -
zoodiversity
Language(s) - English
Resource type - Journals
eISSN - 2707-7268
pISSN - 2707-725X
DOI - 10.15407/zoo2021.04.331
Subject(s) - otolith , engraulis , fishery , fish <actinopterygii> , biology , anchovy , oceanography , geology
Relationships between fish length and otolith length, width and mass were examined in the Australian anchovy Engraulis australis (White, 1790) recovered from the food of Gannet examined from colonies at islands of Horuhoru Rock and Mahuki Islands in the Hauraki Gulf, New Zealand. The relationships between otolith length- fish total length (TL), otolith-weight-TL, and otolith-width-TL were investigated by means of non-linear regression models (TL = 0.54 OL 16.86, TL = 4.39 OW 7.61 and TL = 26.19 OWe 2.2). This study characterizes the first reference available on the relationship of fish size and otolith size and weight for E. australis obtained from bird’s food in the Pacific Ocean region