GILL-NET MESH SELECTIVITIES FOR 2 SPECIES OF COMMERCIAL CARCHARHINID SHARK TAKEN IN NORTHERN AUSTRALIA

Authors
MCLOUGHLIN KJ STEVENS JD
Citation
Kj. Mcloughlin et Jd. Stevens, GILL-NET MESH SELECTIVITIES FOR 2 SPECIES OF COMMERCIAL CARCHARHINID SHARK TAKEN IN NORTHERN AUSTRALIA, Australian Journal of Marine and Freshwater Research, 45(4), 1994, pp. 521-534
Citations number
11
Categorie Soggetti
Oceanografhy,"Marine & Freshwater Biology",Limnology,Fisheries
Journal title
Australian Journal of Marine and Freshwater Research → ACNP
ISSN journal
00671940
Volume
45
Issue
4
Year of publication
1994
Pages
521 - 534
Database
ISI
SICI code
0067-1940(1994)45:4<521:GMSF2S>2.0.ZU;2-O
Abstract
Experiments designed to estimate gill-net mesh selectivities for two s pecies of commercially important sharks in northern Australia were car ried out between 1983 and 1984. A gamma distribution model was used to obtain length-specific selectivities for Carcharhinus tilstoni and C. sorrah caught in nets with stretched-mesh sizes of 10, 15, 20 and 25 cm. Captured sharks were categorized as gilled or rolled (tangled) in the nets. The model provided a better fit to the data for C. sorrah th an for C. tilstoni.