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Habitat suitability models for groundfish in the Gulf of Alaska

机译：阿拉斯加湾底层鱼类的栖息地适宜性模型

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摘要

Identifying and quantifying the major ecosystem processes that regulate recruitment strength of commercially and ecologically important fish species is a central goal of fisheries management research. In the Gulf of Alaska (GOA) five groundfish species are of particular interest: sablefish (Anoplopoma fimbria), Pacific cod (Gadus macrocephalus), walleye pollock (Gadus chalcogrammus), arrowtooth flounder (Atheresthes stomias), and Pacific ocean perch (Sebastes alutus). Habitat suitability models (HSM) were developed for the demersal early juvenile stage to inform survival to recruitment for these species, using catch data and seafloor habitat metrics with presence-only models. Regional-scale maps were produced that predict the probability of suitable habitat available in the GOA from settlement through residency in nursery areas. For example, the HSM for sablefish (150-399 mm) described suitable habitat as bathymetrically low-lying areas with low rocky structure within 25-300 m depth. In contrast, the HSM for Pacific ocean perch (50-200 mm) described suitable habitat as bathymetry rises with rocky structure present on north-south facing slopes within 85-270 m depth. These habitat covariates are useful to refine population estimates for North Pacific groundfish species and to inform life stage-specific definitions of Essential Fish Habitat. This application of MaxEnt models should be applicable for species with low occurrence of spatial data in other marine ecosystems globally.
机译：识别和量化调节商业和生态上重要鱼类的募集强度的主要生态系统过程是渔业管理研究的中心目标。在阿拉斯加湾（GOA），有五种底栖鱼类特别受关注：咸鱼（Anoplopoma fimbria），鳕鱼（Gadus macrocephalus），角膜白鳕（Gadus chalcogrammus），箭牙比目鱼（Atheresthes stomias）和太平洋鲈鱼（Sebastes alutus ）。使用捕获数据和仅存在模型的海底栖息地度量标准，为水下早期阶段开发了栖息地适应性模型（HSM），以告知这些物种的生存生存。绘制了区域尺度的地图，预测了从定居到在苗圃地区的居住，GOA中合适的栖息地的可能性。例如，黑貂的HSM（150-399毫米）将合适的栖息地描述为深度在25-300 m之内的低岩石结构的测深低洼地区。相比之下，针对太平洋鲈鱼的HSM（50-200 mm）描述了合适的栖息地，因为测深法随着深度在85-270 m内的南北向斜坡上的岩石结构而上升。这些栖息地协变量有助于完善北太平洋底层鱼类物种的种群估计，并为特定鱼类生活阶段的特定生命周期定义提供依据。 MaxEnt模型的这种应用应该适用于全球其他海洋生态系统中空间数据很少出现的物种。

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  • 来源
    《Deep-Sea Research》 |2019年第7期|303-321|共19页
  • 作者

    Pirtle Jodi L.; Shotwell S. Kalei; Zimmerman Mark; Reid Jane A.; Golden Nadine;

  • 作者单位

    NOAA Natl Acad Sci Natl Res Council 17109 Point Lena Loop Rd Juneau AK 99801 USA|NOAA Ted Stevens Marine Res Inst Auke Bay Labs Alaska Fisheries Sci Ctr NMFS 17109 Point Lena Loop Rd Juneau AK 99801 USA|NOAA Habitat Conservat Div NMFS 709 West 9th St Fed Bldg Juneau AK 99801 USA;

    NOAA Ted Stevens Marine Res Inst Auke Bay Labs Alaska Fisheries Sci Ctr NMFS 17109 Point Lena Loop Rd Juneau AK 99801 USA;

    NOAA Alaska Fisheries Sci Ctr NMFS 7600 Sand Point Way NE Seattle WA 98115 USA;

    US Geol Survey Pacific Coastal & Marine Sci Ctr 400 Nat Bridges Dr Santa Cruz CA 95060 USA;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    Groundfish; Nursery habitat; Seafloor terrain; Substrate; Habitat model; MaxEnt; Essential Fish Habitat;

    机译：底层鱼;苗圃栖息地;海底地形;基质;人居模式;MaxEnt;必备鱼类栖息地;

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