|
000
| 02181nam 2200337za 4500 |
|---|
| 001 | 9.806398 |
|---|
| 003 | CaOODSP |
|---|
| 005 | 20221107135901 |
|---|
| 007 | cr ||||||||||| |
|---|
| 008 | 150406s2000 oncdb ob f000 0 eng d |
|---|
| 040 | |aCaOODSP|beng |
|---|
| 041 | |aeng|bfre |
|---|
| 043 | |an-cn--- |
|---|
| 086 | 1 |aFs70-1/2000-175E-PDF |
|---|
| 100 | 1 |aOrensanz, J. M. |
|---|
| 245 | 10|aHarvesting Methuselah's clams - is the geoduck fishery sustainable, or just apparently so? |h[electronic resource] / |cJ.M. (Lobo) Orensanz, Ray Hilborn and Anna M. Parma. |
|---|
| 260 | |aOttawa : |bFisheries and Oceans Canada, |c2000. |
|---|
| 300 | |a68 p. : |bfig., graphs, maps, tables. |
|---|
| 490 | 1 |aCanadian Stock Assessment Secretariat research document, |x1480-4883 ; |v2000/175 |
|---|
| 504 | |aIncludes bibliographic references (p. 31-34). |
|---|
| 520 | |aGeoducks are very large and very long-lived bivalves, with potential life-spans well beyond 100 years. Such long life-spans should be expected to confer great stability to these populations. Information about the ecology and dynamics of geoduck populations in Washington State and British Columbia is re-examined, and the implications for stock assessment and management is explored. Strengths and shortcomings of the two management systems are identified, and urgently needed information is highlighted. The analyses suggest a long-term trend of declining recruitment over a large spatial scale, so that recent recruitment could be 40-50% of that during the 1930's. Recommendations are provided to further investigate this apparent phenomenon and the potential role played by fishing activities. |
|---|
| 692 | 07|2gccst|aFisheries resources |
|---|
| 692 | 07|2gccst|aMolluscs |
|---|
| 692 | 07|2gccst|aFishing area |
|---|
| 692 | 07|2gccst|aFisheries management |
|---|
| 700 | 1 |aHilborn, Ray. |
|---|
| 700 | 1 |aParma, Ana M.,|d1955- |
|---|
| 710 | 1 |aCanada. |bDepartment of Fisheries and Oceans. |
|---|
| 710 | 2 |aCanada.|bCanadian Stock Assessment Secretariat. |
|---|
| 830 | #0|aCanadian Stock Assessment Secretariat research document,|x1480-4883 ; |v2000/175|w(CaOODSP)9.507740 |
|---|
| 856 | 40|qPDF|s587 KB|uhttps://publications.gc.ca/collections/collection_2015/mpo-dfo/Fs70-1-2000-175-eng.pdf |
|---|