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Exotics and Public Policy in the Great Lakes:
The Results of a Workshop at the Biennial Great Lakes Water
Quality Forum
Milwaukee, Wisconsin, 23 and 26 September 1999
Eric Reeves
Workshop Coordinator
21 October 1999
§ 4. Commercial uses and arguments about the
meaning of "aquaculture."
§ 4.1. Failing to come to terms. There is
general agreement on the significance of the threat from ballast
water (although other shipping vectors, particularly hull
fouling, need to be better addressed), no one is in doubt about
what we are talking about when we talk about ships, and the
shipping industry has been involved in a very professional
manner, from the beginning, in formulating policy about exotics
in ballast water. The world of "commercial uses," meaning
aquaculture, baitfish, and commercial importation of exotics for
aquaria and ornamental ponds, seems to be rather different. As
discussed in § 4 of the white paper, there is disagreement
about how to even define "aquaculture," and about whether or not
various forms of it constitute a significant threat. As evidenced
at the workshop, moreover, there is a noticeable lack of a good
working relationship between government regulators concerned
about exotics and proponents of the aquaculture industry. My use
of the term "commercial uses" as a general category - with
"aquaculture" in the form of fish farming for food, baitfish
transportation, and importation of exotics in aquaria and ponds
framed as separate subcategories - was deliberately chosen in an
effort to get beyond semantic arguments. The effort failed. When
the discussion turned to this topic, it immediately degenerated
into vehement arguments about how one defines "aquaculture,"
about the supposed misrepresentation of the different sorts of
activities covered by that term in the white paper, and
accusations that the white paper was therefore an unfair attack
on the industry, all delivered in a rather acrimonious manner. At
that point, I asked the most vehement speaker to please follow up
with some written comments on where he thought the white paper
was misleading and did not attempt to press that discussion
further in the workshop. It was simply not productive. It was
obvious that representatives of the industry had not come
prepared to have the same sort of substantive discussion which
the shipping industry representatives were prepared for
§ 4.2. Intergovernmental coordination. We had
representatives from various state and provincial agencies,
including both some of those responsible for regulation and
promotion of aquaculture, on one hand, and several of those
responsible for control of exotics, on the other. There was a
noticeable difference in approach towards the issue evident in
the comments of those different agencies, and an apparent lack of
communication among them. I would submit that this is in itself
is a significant piece of information which should be given
consideration. In the white paper, and in more detail in the
Michigan report which provided the basis for the summary comment
on this issue in the white paper, I pointed out that there is a
general lack of coordination on policies for the regulation of
these commercial uses among the eleven different jurisdictions
and multitude of separate agencies within jurisdictions in the
Great Lakes region. This failed attempt at consultation at the
workshop only emphasized the nature of the problem.
§ 4.3. Some comments on the nature of the threat.
We did manage to have some preliminary discussion at the level of
a very rough threat evaluation. We had an academic expert who had
conducted a study of the threat from various forms of
aquaculture. He, in fact, had taken care in his morning
presentation to stress the fact that "aquaculture" covered a
broad range of activities presenting different kinds and levels
of threats. He proposed that one needs to look, specifically, at
(1) the type of facility (discussed in the white paper),
(2) its water source, (3) the type or species of
organism, (4) what it is being raised for (such as food or
bait), and (5) how it is sold, among other factors. In his
opinion, the greatest threat was from the wild harvest of
baitfish, because this had the definite potential to involve the
accidental collection of non-target species. One of those
speaking for industry who vehemently objected to my whole
analysis in the white paper did agree with this idea that there
was a threat from wild bait harvest, but emphasized his view that
"aquaculture" in the sense of fish-farming for human food
consumption was not a problem. Other participants raised concerns
about a new industry for the sale of live food fish, and about
the problem of disease in aquaculture generally.
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