{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2024,6,22]],"date-time":"2024-06-22T15:57:19Z","timestamp":1719071839829},"reference-count":34,"publisher":"World Scientific Pub Co Pte Lt","issue":"09","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Int. J. Bifurcation Chaos"],"published-print":{"date-parts":[[2006,9]]},"abstract":"<jats:p> In this paper, we propose an exploited single-species discrete population model with stage structure for the dynamics in a fish population for which births occur in a single pulse once per time period. Using the stroboscopic map, we obtain an exact cycle of the system, and obtain the threshold conditions for its stability. Bifurcation diagrams are constructed with the birth rate (or harvesting effort) as the bifurcation parameter, and these are observed to display complex dynamic behaviors, including chaotic bands with period windows, pitchfork and tangent bifurcation, nonunique dynamics (meaning that several attractors or attractor and chaos coexist), basins of attraction and attractor crisis. This suggests that birth pulse provides a natural period or cyclicity that makes the dynamical behaviors more complex. Moreover, we show that the timing of harvesting has a strong impact on the persistence of the fish population, on the volume of mature fish stock and on the maximum annual-sustainable yield. An interesting result is obtained that, after the birth pulses, the population can sustain much higher harvesting effort if the mature fish is removed as early in the season as possible. <\/jats:p>","DOI":"10.1142\/s0218127406016264","type":"journal-article","created":{"date-parts":[[2006,11,24]],"date-time":"2006-11-24T11:27:06Z","timestamp":1164367626000},"page":"2575-2586","source":"Crossref","is-referenced-by-count":1,"title":["THE EFFECT OF SEASONAL HARVESTING ON A STAGE-STRUCTURED DISCRETE MODEL WITH BIRTH PULSES"],"prefix":"10.1142","volume":"16","author":[{"given":"SHUJING","family":"GAO","sequence":"first","affiliation":[{"name":"College of Mathematics and Computer Science, Gannan Normal University, Ganzhou 341000, P. R. China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"LANSUN","family":"CHEN","sequence":"additional","affiliation":[{"name":"Department of Applied Mathematics, Dalian University of Technology, Dalian 116024, P. R. 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