{
    "created": "2023-04-20 15:40:12",
    "updated": "2026-05-09 14:21:07",
    "id": "eae2a1db-a577-4902-8b06-6ae9fdae4bba",
    "version": 6,
    "ds_topic": null,
    "title_cn": "长江干流典型断面鱼类调查数据（2011年、2015年、2018年）",
    "title_en": "Fish survey data for typical sections of the mainstem of the Yangtze River (2011, 2015, 2018)",
    "ds_abstract": "<p>&emsp;&emsp;本数据集收集了2011年、2015年和2018年溪洛渡-向家坝区间鱼类种类、鱼类数量百分比、鱼类重量百分比等数据。\n<p>&emsp;&emsp;1.数据集命名；\n<p>&emsp;&emsp;长江干流典型断面鱼类调查数据.xlsx；\n<p>&emsp;&emsp;2.属性信息；\n<p>&emsp;&emsp;年: 鱼类调查年份；\n<p>&emsp;&emsp;月: 鱼类调查月份；\n<p>&emsp;&emsp;鱼的名称: 捕获的鱼类名称；\n<p>&emsp;&emsp;鱼的重量百分比: 捕获的某种鱼的重量占总重量的百分比；\n<p>&emsp;&emsp;鱼的数量百分比: 捕获的某种鱼的数量占总数量的百分比。",
    "ds_source": "<p>&emsp;&emsp;鱼类样品采集参考《内陆水域渔业自然资源调查手册》，在专业人员带领下采用定点捕捞方式。采样工具为虾笼（长度100 m，高25 cm）、三层刺网（网眼大小为1.5 cm-7 cm-12 cm，长度200 m，高5 m）、小钩（总长度约300 m，高度为20—70 m）等。\n<p>&emsp;&emsp;鱼类样品采集为全天候捕捞，每次放网8张、地笼3个，每天晚上和早上各收集1次，小钩仅在晚上进行，捕捞时长为72 h。采集到的鱼类进行现场拍照、称重、测量等。鱼类鉴别参考《四川鱼类志》。",
    "ds_process_way": "<p>&emsp;&emsp;人工采集并统计。",
    "ds_quality": "<p>&emsp;&emsp;数据质量良好。",
    "ds_acq_start_time": "2011-01-01 00:00:00",
    "ds_acq_end_time": "2018-12-31 00:00:00",
    "ds_acq_place": "长江干流溪洛渡向家坝区间",
    "ds_acq_lon_east": null,
    "ds_acq_lat_south": null,
    "ds_acq_lon_west": null,
    "ds_acq_lat_north": null,
    "ds_acq_alt_low": null,
    "ds_acq_alt_high": null,
    "ds_share_type": "login-access",
    "ds_total_size": 14833,
    "ds_files_count": 2,
    "ds_format": "excel",
    "ds_space_res": null,
    "ds_time_res": "",
    "ds_coordinate": "无",
    "ds_projection": "",
    "ds_thumbnail": "eae2a1db-a577-4902-8b06-6ae9fdae4bba.png",
    "ds_thumb_from": 0,
    "ds_ref_way": "",
    "paper_ref_way": "",
    "ds_ref_instruction": "",
    "ds_from_station": null,
    "organization_id": "3e3edc19-47aa-4e44-b4a3-39e7c77667c5",
    "ds_serv_man": "敏玉芳",
    "ds_serv_phone": "0931-4967596",
    "ds_serv_mail": "ncdc@lzb.ac.cn",
    "doi_value": "10.12072/ncdc.cjszyzljs.db2837.2023",
    "subject_codes": [
        "170.45"
    ],
    "quality_level": 3,
    "publish_time": "2023-04-23 16:44:45",
    "last_updated": "2025-06-30 11:41:12",
    "protected": false,
    "protected_to": null,
    "lang": "zh",
    "cstr": "11738.11.NCDC.CJSZYZLJS.DB2837.2023",
    "i18n": {
        "en": {
            "title": "Fish survey data for typical sections of the mainstem of the Yangtze River (2011, 2015, 2018)",
            "ds_format": "excel",
            "ds_source": "<p>&emsp; Fish samples were collected with reference to the Manual of Natural Resources Survey of Inland Waters Fisheries and were taken by spot fishing under the leadership of professionals. Sampling tools were shrimp cages (100 m in length and 25 cm in height), triple gillnets (mesh size 1.5 cm-7 cm-12 cm, 200 m in length and 5 m in height), and small hooks (about 300 m in total length and 20-70 m in height).\n<p>&emsp; Fish samples were collected in all-weather fishing, 8 nets and 3 cages were put out each time, and collected once a day in the evening and once a day in the morning, and the small hooks were only carried out in the evening, and the fishing duration was 72 h. The collected fish were photographed, weighed and measured on site. For fish identification, refer to Sichuan Fish Journal.",
            "ds_quality": "<p>&emsp; Data quality is good.",
            "ds_ref_way": "",
            "ds_abstract": "<p>  This dataset collects data on fish species, percent fish counts, and percent fish weights for the 2011, 2015, and 2018 Xiluodu-Xiangjiaba intervals.\n<p>  1. Data set naming;\n<p>  Fish Survey Data for Typical Sections of the Main Stream of the Yangtze River.xlsx;\n<p>  2. Attribute information;\n<p>  Year: Year of fish survey;\n<p>  Month: Fish survey month;\n<p>  Fish name: The name of the fish caught;\n<p>  Percentage of fish weight: The weight of a particular fish caught as a percentage of the total weight;\n<p>  Percentage of Fish: The number of a particular fish caught as a percentage of the total number.</p></p></p></p></p></p></p></p></p>",
            "ds_time_res": "",
            "ds_acq_place": "Yangtze River Main Stream Xiluodu Xiangjiaba Interval",
            "ds_space_res": "",
            "ds_projection": "",
            "ds_process_way": "<p>&emsp; Manual collection and statistics.",
            "ds_ref_instruction": ""
        }
    },
    "submit_center_id": "ncdc",
    "data_level": 0,
    "license_type": "https://creativecommons.org/licenses/by/4.0/",
    "doi_reg_from": "reg_local",
    "cstr_reg_from": "reg_local",
    "doi_not_reg_reason": null,
    "cstr_not_reg_reason": null,
    "is_paper_in_submitting": false,
    "ds_topic_tags": [
        "鱼类种类",
        "鱼类数量百分比",
        "鱼类重量百分比"
    ],
    "ds_subject_tags": [
        "地理学"
    ],
    "ds_class_tags": [],
    "ds_locus_tags": [
        "长江干流溪洛渡向家坝区间"
    ],
    "ds_time_tags": [
        2011,
        2015,
        2018
    ],
    "ds_contributors": [
        {
            "true_name": "王骏",
            "email": "wangjun_zxx@163.com",
            "work_for": "南京水利科学研究院",
            "country": "中国"
        }
    ],
    "ds_meta_authors": [
        {
            "true_name": "王骏",
            "email": "wangjun_zxx@163.com",
            "work_for": "南京水利科学研究院",
            "country": "中国"
        }
    ],
    "ds_managers": [
        {
            "true_name": "王骏",
            "email": "wangjun_zxx@163.com",
            "work_for": "南京水利科学研究院",
            "country": "中国"
        }
    ],
    "category": "基础地理"
}