<s>
Ecopath	B-Application
with	I-Application
Ecosim	I-Application
(	O
EwE	O
)	O
is	O
a	O
free	O
and	O
open	B-Application
source	I-Application
ecosystem	O
modelling	O
software	B-Application
suite	I-Application
,	O
initially	O
started	O
at	O
NOAA	O
by	O
Jeffrey	O
Polovina	O
,	O
but	O
has	O
since	O
primarily	O
been	O
developed	O
at	O
the	O
formerly	O
UBC	O
Fisheries	O
Centre	O
of	O
the	O
University	O
of	O
British	O
Columbia	O
.	O
</s>
<s>
The	O
NOAA	O
citation	O
states	O
that	O
Ecopath	B-Application
"	O
revolutionized	O
scientists	O
 '	O
ability	O
worldwide	O
to	O
understand	O
complex	O
marine	O
ecosystems	O
"	O
.	O
</s>
<s>
The	O
Ecopath	B-Application
software	O
package	O
can	O
be	O
used	O
to	O
:	O
</s>
<s>
Development	O
Ecopath	B-Application
version	O
6.0	O
received	O
support	O
from	O
the	O
and	O
the	O
Pew	O
Charitable	O
trusts	O
.	O
</s>
<s>
The	O
desktop	O
version	O
of	O
Ecopath	B-Application
with	I-Application
Ecosim	I-Application
runs	O
only	O
on	O
Windows	O
and	O
requires	O
Microsoft	B-Application
Access	I-Application
database	I-Application
drivers	I-Application
version	O
2007	O
or	O
newer	O
.	O
</s>
<s>
The	O
computational	O
core	O
of	O
Ecopath	B-Application
with	I-Application
Ecosim	I-Application
can	O
be	O
executed	O
on	O
other	O
operating	O
systems	O
such	O
as	O
Unix	B-Application
or	O
Linux	B-Application
using	O
the	B-Application
Mono	I-Application
common	I-Application
language	I-Application
runtime	I-Application
.	O
</s>
<s>
Spin-off	O
versions	O
in	O
R	O
,	O
Matlab	O
and	O
Fortran	O
are	O
developed	O
independently	O
of	O
the	O
main	O
desktop	O
version	O
of	O
EwE	O
,	O
and	O
are	O
not	O
supported	O
by	O
the	O
Ecopath	B-Application
Research	O
and	O
Development	O
Consortium	O
.	O
</s>
<s>
In	O
2013	O
,	O
development	O
efforts	O
were	O
centralized	O
under	O
Ecopath	B-Application
International	O
Initiative	O
,	O
Spain	O
,	O
which	O
coincided	O
with	O
a	O
switch	O
to	O
a	O
community-driven	O
development	O
model	O
overseen	O
by	O
the	O
Ecopath	B-Application
Research	O
and	O
Development	O
Consortium	O
.	O
</s>
<s>
As	O
the	O
approach	O
does	O
not	O
receive	O
any	O
core	O
funding	O
,	O
the	O
Ecopath	B-Application
with	I-Application
Ecosim	I-Application
approach	O
now	O
relies	O
entirely	O
on	O
user-contributed	O
project	O
funding	O
for	O
continued	O
development	O
and	O
releases	O
.	O
</s>
