Publication Date:
2022-05-25
Description:
Author Posting. © The Author(s), 2013. This is the author's version of the work. It is posted here by permission of Springer for personal use, not for redistribution. The definitive version was published in Marine Biology 161 (2014): 245-259, doi:10.1007/s00227-013-2331-4.
Description:
Cardinalfishes (Apogonidae) are abundant on corals reefs, but there are few data on demography to
understand trophodynamics and population dynamics. Ostorhinchus doederleini is a small and abundant
apogonid on the Great Barrier Reef (GBR) and throughout the Western Pacific Ocean. We present key
demographic parameters for the entire life history from the southern GBR. Daily deposition of
increments in otoliths was validated. Fish had a Planktonic Larval Duration (PLD) of 16 to 26 days.
PLD was established from fish collected immediately prior to settlement as no settlement mark was
found. Fish grew at about 0.35 mm d-1 for the first 20 d after settlement. Fish reached a maximum
standard length at about 200 d and no fish lived longer than 368 d at four reefs separated by kilometers
to tens of kilometres. There was no evidence for differences in size at age between sexes. Mortality
was very high, for fish greater than 60 days old mortality ratesranged from 2.9 to 4.6% per day. Short
lives and high mortality rates makes O. doederleini, and potentially other apogonids, vulnerable to
recruitment failure. Here we review data on the demographic characteristics of other reef fishes.
Although some taxa live to over 50 years, the short lives of apogonids are most aligned with the
Gobiidae and Blenniidae (i.e. typically 〈 1.5 years). Descriptions of fish size, age, longevity, growth
and mortality; from hatching to age maxima are very rare for most taxa, even at the level of family.
Description:
This project was funded by ARC Grants to MJK and funding
from the ARC Centre of Excellence for Coral Reef Studies.
Description:
2014-10-19
Keywords:
Apogonidae
;
Otoliths
;
Age
;
PLD
;
Settlement
;
Growth
;
Mortality
Repository Name:
Woods Hole Open Access Server
Type:
Preprint
Format:
application/pdf
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