January 11, 2001
Robert C. Hight, Director
California Dept. of Fish and Game
1416 Ninth Street, 12th Floor
Sacramento, CA 95814
FAX 916.653.7387
Re: Order to Restrict Gillnet Fisheries to Protect Sea Otters
and Seabirds
Dear Mr. Hight:
The Marine Mammal Center and its 35,000 members support the
order issued September 12, 2000 prohibiting the use of gill
or trammel nets in water depths less than 60 fathoms.
While the order was based on information on the effect of
this fishery on common murres and southern sea otters, this
order also protects other marine mammals that inhabit shallow
waters along the central and northern California coast and
are vulnerable to human-caused mortality.
Observer statistics indicate the extensive impact of this
gillnet fishery on marine mammals. For the brief period January
1, 2000 through June 30, 2000, the NOAA Fisheries Southwest
Fisheries Center Monterey Bay Set Gillnet Observer Program
observed 27% (44 of 164 days) of fishing trips in the Monterey
Bay gillnet fishery and recorded the mortality of 24 pinnipeds,
3 cetaceans and 581 common murres. These numbers translate
to three times as many when extrapolating these statistics
to all of the trips within that period.
The NOAA observer program gillnet take statistics include
two harbor seal pups tracked by The Marine Mammal Center.
Our ongoing study of Pacific harbor seal behavior shows that
newly weaned harbor seals tagged with time-depth recorders
(TDR's) were diving at an average of about 6 fathoms with
maximum depths at about 66 fathoms.". Therefore this
order should protect this age class of harbor seals as well.
Because fishing practices and the distribution of potentially
entangled species can change dramatically over time and prior
data can not be used to determine whether this order is sufficiently
protective against extensive gillnet entanglement, we also
encourage consistent shipboard monitoring of the gillnet fisheries
as well as other sound research methods to determine species
status (including monitoring of beachcast marine mammals and
sea birds, aerial surveys to determine species distribution,
and information on temporal and geographic patterns of fishing
efforts).
In summary, as a direct result of the use of gill nets, not
only are threatened and endangered species affected, but also
other marine mammals who live in the northern and central
California nearshore marine environment. This temporary order
needs to be extended and consistent monitoring undertaken
to determine the impact of this order on protecting sensitive
species given variances in fishing practices and distribution
of sensitive species over time.
Please advise The Marine Mammal Center of further hearings
or solicitation of additional comments.
Sincerely,
B.J. Griffin
Executive Director
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