Resilience of inshore, juvenile snapper Pagrus auratus to angling and release
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چکیده
منابع مشابه
Resilience of inshore, juvenile snapper Pagrus auratus to angling and release.
This study assessed the mortality of 157 snapper Pagrus auratus (9-29 cm, total length, L(T) ) after being conventionally angled and then released into cages (along with 48 controls) for 4 days off south-eastern Australia. Fatalities were restricted to 12 angled fish (7·6%) and mostly attributed to the ingestion of hooks and especially their subsequent removal, which caused substantial blood lo...
متن کاملCardiovascular changes and catecholamine release following anaesthesia in Chinook salmon (Oncorhynchus tshawytscha) and snapper (Pagrus auratus).
We investigated recovery from anaesthesia in Chinook salmon (Oncorhynchus tshawytscha) with and without surgery. Fish either underwent light sedation on exposure to 60 ppm AQUI-S or surgical depth anaesthesia with 120 ppm AQUI-S. Surgical depth anaesthesia experiments were replicated using New Zealand snapper (Pagrus auratus). During light sedation, there was no evidence of catecholamine releas...
متن کاملPagrus auratus larvae
Copepods have often improved larviculture of marine fish species that are not easily reared using rotifers. One such species is Glaucosoma hebraicum. G. hebraicum larvae were reared on a combined diet consisting of equal numbers of cultured copepod nauplii and rotifers and a diet of rotifers only. Growth was significantly greater in larvae fed with the combined diet. Survival was 37% in the cop...
متن کاملAngling-Induced Barotrauma in Snapper Chrysophrys auratus: Are There Consequences for Reproduction?
In response to concerns regarding the potential for sub-lethal impacts of barotrauma on reproductively active Chrysophrys auratus during catch and release, 90 males and 90 females representing five reproductive stages (immature or resting--28%, developing--8%, developed--7%, ripe or spawning--23% and spent--34%) were angled from 8-70 m and macroscopically assessed (on-board and then in a labora...
متن کاملLoss of microsatellite diversity and low effective population size in an overexploited population of New Zealand snapper (Pagrus auratus).
Although the effects of overfishing on species diversity and abundance are well documented, threats to the genetic diversity of marine fish populations have so far been largely neglected. Indeed, there seems to be little cause for concern, as even "collapsed" stocks usually consist of several million individuals, whereas population genetics theory suggests that only very small populations suffe...
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ژورنال
عنوان ژورنال: Journal of Fish Biology
سال: 2012
ISSN: 0022-1112
DOI: 10.1111/j.1095-8649.2011.03202.x