Environmental Engineering Reference
In-Depth Information
breadth of distribution of the Guide;
quantity, quality and diversity of media exposure;
staying power of the Guide in the media;
volume and quality of written and verbal feedback received;
impact on public attitudes; and
impact of the Guide on fisheries management.
19.3
Species Assessments
A range of attributes were considered in the assessment of species included in the
Guide. These attributes included the biology of the species, geographical range
and abundance, history of exploitation, current exploitation rates, current stock
status, availability to fishing, as well as consideration of the management challenges
currently facing the species.
19.3.1
Criteria - wild fisheries
A set of criteria were defined to guide the assignment of each species to a category:
'Say No' species, 'Think Twice' species and 'Better Choice' species (Plate 19.1).
'Say No' species
The following criteria applied to species included in the 'Say No' category:
(a)
the species is currently listed by BRS as being 'overfished', e.g. redfish;
or
(b)
the species or species group is of broad conservation concern, e.g. broadbill
swordfish, sharks and rays;
or
(c)
the species is reared in seacage aquaculture production systems (which are
considered widely by conservationists as an unsustainable method of aqua-
culture production, e.g. Atlantic salmon, ocean trout).
In the 2004 report, BRS listed the following species as 'overfished':
Blue Warehou (
Seriolella brama
)
Broadbill Swordfish (
Xiphias gladius
)
Commercial Scallop (
Pecten fumatus
)
Eastern Gemfish (
Rexea solandri
)
Orange Roughy (
Hoplostethus atlanticus
)
Redfish (
Centrberyx affinis
)
Silver Trevally (
Pseudocaranx dentex
)
Southern Blue-fin Tuna (
Thunnus maccoyii
)
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