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145:) whereby, due to certain causes, a decrease in the breeding population (mature individuals) leads to reduced production and survival of eggs or offspring. The causes may include predation levels rising per offspring (given the same level of overall predator pressure) and the
161:. This occurs when the population size has a tendency to decline when the population drops below a certain level (known as the "Critical depensation level"). Ultimately this may lead to the population or fishery's collapse (
180:, which describes a situation where a decline in population biomass is not compensated by a corresponding increase in marginal growth per unit of biomass.
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Maroto, Jose M.; Moran, Manuel. "Detecting the presence of depensation in collapsed fisheries: The case of the
Northern cod stock".
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When the level of depensation is high enough that the population is no longer able to sustain itself, it is said to be a
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Kar, Tapan Kumar; Misra, Swarnakamal. "Optimal
Control of a Fishery under Critical Depensation".
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The phenomenon of critical depensation may be modelled or defined by a negative second order
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Optimal harvesting in the presence of critical depensation
149:, particularly the reduced likelihood of finding a mate.
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of population growth rate with respect of population
57:. Unsourced material may be challenged and removed.
318:On line source of definitions and other fish info
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1938:
1924:
1306:Latitudinal gradients in species diversity
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117:Learn how and when to remove this message
1204:Predator–prey (Lotka–Volterra) equations
843:Tritrophic interactions in plant defense
292:Journal of Fisheries and Aquatic Science
1236:Random generalized Lotka–Volterra model
269:. Oxford University Press. p. 99.
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1044:Herbivore adaptations to plant defense
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1059:Predator avoidance in schooling fish
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55:adding citations to reliable sources
26:
1509:Intermediate disturbance hypothesis
24:
1262:Ecological effects of biodiversity
25:
1983:
598:Generalist and specialist species
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263:Quinn, Terrance (25 March 1999).
1894:
1321:Occupancy–abundance relationship
31:
1341:Relative abundance distribution
1054:Plant defense against herbivory
921:Competitive exclusion principle
633:Mesopredator release hypothesis
42:needs additional citations for
926:Consumer–resource interactions
283:
234:
13:
1:
1772:Biological data visualization
1599:Environmental niche modelling
1326:Population viability analysis
227:
1910:. You can help Knowledge by
1257:Density-dependent inhibition
7:
1726:Liebig's law of the minimum
1561:Resource selection function
452:Metabolic theory of ecology
183:
10:
1988:
1889:
1626:Niche apportionment models
1346:Relative species abundance
550:Primary nutritional groups
447:List of feeding behaviours
266:Quantitative Fish Dynamics
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1807:Ecosystem based fisheries
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1447:
1419:Interspecific competition
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1311:Minimum viable population
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1169:Maximum sustainable yield
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1149:Effective population size
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1029:Anti-predator adaptations
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540:Photosynthetic efficiency
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1797:Ecological stoichiometry
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1641:Ontogenetic niche shift
1504:Ideal free distribution
1414:Ecological facilitation
1164:Malthusian growth model
1134:Consumer-resource model
991:Paradox of the plankton
956:Energy systems language
676:Chemoorganoheterotrophy
643:Optimal foraging theory
618:Heterotrophic nutrition
1787:Ecological forecasting
1731:Marginal value theorem
1529:Landscape epidemiology
1464:Cross-boundary subsidy
1399:Biological interaction
749:Microbial intelligence
437:Green world hypothesis
1792:Ecological humanities
1691:Ecological energetics
1636:Niche differentiation
1499:Habitat fragmentation
1267:Ecological extinction
1214:Small population size
966:Feed conversion ratio
946:Ecological succession
878:San Francisco Estuary
792:Ecological efficiency
734:Microbial cooperation
216:Small population size
1962:Ecological processes
1817:Evolutionary ecology
1782:Ecological footprint
1777:Ecological economics
1701:Ecological threshold
1696:Ecological indicator
1566:Source–sink dynamics
1519:Land change modeling
1514:Insular biogeography
1366:Species distribution
1105:Modelling ecosystems
764:Microbial metabolism
603:Intraguild predation
392:Biogeochemical cycle
358:Modelling ecosystems
243:Ecological Economics
196:Conservation biology
159:critical depensation
153:Critical depensation
51:improve this article
18:Critical depensation
1967:Population dynamics
1867:Theoretical ecology
1842:Natural environment
1706:Ecosystem diversity
1676:Ecological collapse
1666:Bateman's principle
1621:Limiting similarity
1534:Landscape limnology
1356:Species homogeneity
1194:Population modeling
1189:Population dynamics
1006:Trophic state index
191:Abundance (ecology)
137:is the effect on a
131:population dynamics
1878:Outline of ecology
1827:Industrial ecology
1822:Functional ecology
1686:Ecological deficit
1631:Niche construction
1594:Ecosystem engineer
1371:Species–area curve
1292:Introduced species
1107:: Other components
1039:Deimatic behaviour
941:Ecological network
873:North Pacific Gyre
858:hydrothermal vents
797:Ecological pyramid
744:Microbial food web
555:Primary production
500:Foundation species
221:Threatened species
163:resource depletion
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1918:
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1767:Balance of nature
1524:Landscape ecology
1409:Community ecology
1351:Species diversity
1287:Indicator species
1282:Gradient analysis
1159:Logistic function
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1024:Animal coloration
1001:Trophic mutualism
739:Microbial ecology
530:Photoheterotrophs
515:Myco-heterotrophy
427:Ecosystem ecology
412:Carrying capacity
377:Abiotic component
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16:(Redirected from
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1584:Ecological niche
1556:selection theory
1376:Umbrella species
1361:Species richness
1297:Invasive species
1277:Flagship species
1184:Population cycle
1179:Overexploitation
1144:Ecological yield
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916:Climax community
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787:Biomagnification
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402:Biotic component
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769:Phage ecology
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759:Microbial mat
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714:Bacteriophage
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573:Apex predator
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407:Biotic stress
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107:February 2014
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68: –
67:
66:"Depensation"
63:
62:Find sources:
56:
52:
46:
45:
40:This article
38:
34:
29:
28:
19:
1912:expanding it
1901:
1886:
1847:Regime shift
1832:Macroecology
1553:
1549:
1489:Edge effects
1459:Biogeography
1404:Commensalism
1252:Biodiversity
1138:
1129:Allee effect
868:kelp forests
821:Example webs
686:Detritivores
525:Organotrophs
505:Kinetotrophs
457:Productivity
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285:
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147:Allee effect
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61:
49:Please help
44:verification
41:
1484:Disturbance
1387:interaction
1209:Recruitment
1139:Depensation
931:Copiotrophs
802:Energy flow
724:Lithotrophy
668:Decomposers
648:Planktivore
623:Insectivore
613:Heterotroph
578:Bacterivore
545:Phototrophs
495:Chemotrophs
467:Restoration
417:Competition
211:Overfishing
165:), or even
141:(such as a
135:depensation
1957:Extinction
1951:Categories
1852:Sexecology
1429:Parasitism
1394:Antibiosis
1229:Resistance
1224:Resilience
1114:Population
1034:Camouflage
986:Oligotroph
901:Ascendency
863:intertidal
853:cold seeps
807:Food chain
608:Herbivores
583:Carnivores
510:Mixotrophs
485:Autotrophs
364:components
228:References
174:derivative
143:fish stock
139:population
77:newspapers
1757:Allometry
1711:Emergence
1439:Symbiosis
1424:Mutualism
1219:Stability
1124:Abundance
936:Dominance
894:Processes
883:tide pool
779:Food webs
653:Predation
638:Omnivores
565:Consumers
520:Mycotroph
477:Producers
422:Ecosystem
387:Behaviour
1812:Endolith
1741:Xerosere
1653:networks
1469:Ecocline
1015:Defense,
691:Detritus
593:Foraging
462:Resource
184:See also
1904:biology
1802:Ecopath
1609:Habitat
1479:Ecotype
1474:Ecotone
1451:ecology
1449:Spatial
1385:Species
1245:Species
1116:ecology
1101:Ecology
1049:Mimicry
1017:counter
961:f-ratio
709:Archaea
397:Biomass
370:General
362:Trophic
354:Ecology
178:biomass
91:scholar
833:Rivers
729:Marine
273:
93:
86:
79:
72:
64:
1902:This
1750:Other
1651:Other
1604:Guild
1576:Niche
828:Lakes
98:JSTOR
84:books
1908:stub
838:Soil
271:ISBN
70:news
129:In
53:by
1953::
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255:^
247:97
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169:.
133:,
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105:(
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