Geographic variability in lingcod Ophiodon elongatus life history and demography along the US West Coast: oceanographic drivers and management implications
| العنوان: | Geographic variability in lingcod Ophiodon elongatus life history and demography along the US West Coast: oceanographic drivers and management implications |
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| المؤلفون: | Bonnie L. Basnett, Scott L. Hamilton, Gary C. Longo, Jason M. Cope, Jameal F. Samhouri, Laurel S. Lam, Kelly S. Andrews, Krista M. Nichols, Melissa A. Haltuch |
| المصدر: | Marine Ecology Progress Series. 670:203-222 |
| بيانات النشر: | Inter-Research Science Center, 2021. |
| سنة النشر: | 2021 |
| مصطلحات موضوعية: | 0106 biological sciences, Lingcod, 010504 meteorology & atmospheric sciences, Ecology, biology, 010604 marine biology & hydrobiology, Biogeography, Geographic variation, Aquatic Science, biology.organism_classification, 01 natural sciences, Fishery, Geography, Management implications, Spatial variability, West coast, Life history, Ecology, Evolution, Behavior and Systematics, 0105 earth and related environmental sciences |
| الوصف: | Understanding the environmental and anthropogenic drivers of spatial patterns in life history variation for exploited fish populations is important when making management decisions and designating stock boundaries. These considerations are especially germane for stocks that are overfished or recently rebuilt, such as lingcod Ophiodon elongatus, a commercially and recreationally valuable species of groundfish along the West Coast of North America. Between 2015 and 2017, we collected 2189 lingcod from 24 port locations, spanning 28° of latitude from southeast Alaska (60°N) to southern California (32°N), to investigate latitudinal patterns in size- and age-structure, growth, timing of maturity, condition, and mortality, as well as to identify biologically relevant population breakpoints along the coast. We found strong latitudinal patterns in these life history and demographic traits consistent with Bergmann’s rule: lingcod from colder, northern waters were larger-at-age, lived longer, matured at larger sizes, and had lower natural mortality rates than lingcod from warmer, southern waters. Female lingcod were larger-at-age, lived longer, and matured at larger sizes compared to males within each examined region. In addition, we found evidence for strong associations between lingcod life history traits and the oceanographic variables of sea surface temperature and chlorophyll a. Cluster analysis using life history traits indicated that central Oregon is a biologically relevant breakpoint for lingcod along the US West Coast. This breakpoint based on life history traits, in conjunction with a recently identified population genetic breakpoint between central and northern California, highlights the need for future lingcod stock assessments to consider multiple sources of information to best inform management of this trans-boundary stock. |
| تدمد: | 1616-1599 0171-8630 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::c13f9989e2efc0905301d3985e68cfdb https://doi.org/10.3354/meps13750 |
| حقوق: | CLOSED |
| رقم الأكسشن: | edsair.doi...........c13f9989e2efc0905301d3985e68cfdb |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 16161599 01718630 |
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