Get quick answers to your questions about the article from our AI researcher chatbot
{'id': 'https://openalex.org/W2149567119', 'doi': 'https://doi.org/10.1126/science.1075880', 'title': 'From Anchovies to Sardines and Back: Multidecadal Change in the Pacific Ocean', 'display_name': 'From Anchovies to Sardines and Back: Multidecadal Change in the Pacific Ocean', 'publication_year': 2003, 'publication_date': '2003-01-10', 'ids': {'openalex': 'https://openalex.org/W2149567119', 'doi': 'https://doi.org/10.1126/science.1075880', 'mag': '2149567119', 'pmid': 'https://pubmed.ncbi.nlm.nih.gov/12522241'}, 'language': 'en', 'primary_location': {'is_oa': False, 'landing_page_url': 'https://doi.org/10.1126/science.1075880', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S3880285', 'display_name': 'Science', 'issn_l': '0036-8075', 'issn': ['0036-8075', '1095-9203'], 'is_oa': False, 'is_in_doaj': False, 'is_core': True, 'host_organization': 'https://openalex.org/P4310315823', 'host_organization_name': 'American Association for the Advancement of Science', 'host_organization_lineage': ['https://openalex.org/P4310315823'], 'host_organization_lineage_names': ['American Association for the Advancement of Science'], 'type': 'journal'}, 'license': None, 'license_id': None, 'version': None, 'is_accepted': False, 'is_published': False}, 'type': 'review', 'type_crossref': 'journal-article', 'indexed_in': ['crossref', 'pubmed'], 'open_access': {'is_oa': False, 'oa_status': 'closed', 'oa_url': None, 'any_repository_has_fulltext': False}, 'authorships': [{'author_position': 'first', 'author': {'id': 'https://openalex.org/A5085801657', 'display_name': 'Francisco P. Chávez', 'orcid': 'https://orcid.org/0000-0002-0691-292X'}, 'institutions': [{'id': 'https://openalex.org/I1319261023', 'display_name': 'Monterey Bay Aquarium Research Institute', 'ror': 'https://ror.org/02nb3aq72', 'country_code': 'US', 'type': 'nonprofit', 'lineage': ['https://openalex.org/I1319261023']}], 'countries': ['US'], 'is_corresponding': False, 'raw_author_name': 'Francisco P. Chavez', 'raw_affiliation_strings': ['Monterey Bay Aquarium Research Institute, 7700 Sandholdt Road, Moss Landing, CA 95039, USA.'], 'affiliations': [{'raw_affiliation_string': 'Monterey Bay Aquarium Research Institute, 7700 Sandholdt Road, Moss Landing, CA 95039, USA.', 'institution_ids': ['https://openalex.org/I1319261023']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5011484066', 'display_name': 'John P. Ryan', 'orcid': 'https://orcid.org/0000-0001-7954-5369'}, 'institutions': [{'id': 'https://openalex.org/I1319261023', 'display_name': 'Monterey Bay Aquarium Research Institute', 'ror': 'https://ror.org/02nb3aq72', 'country_code': 'US', 'type': 'nonprofit', 'lineage': ['https://openalex.org/I1319261023']}], 'countries': ['US'], 'is_corresponding': False, 'raw_author_name': 'John Ryan', 'raw_affiliation_strings': ['Monterey Bay Aquarium Research Institute, 7700 Sandholdt Road, Moss Landing, CA 95039, USA.'], 'affiliations': [{'raw_affiliation_string': 'Monterey Bay Aquarium Research Institute, 7700 Sandholdt Road, Moss Landing, CA 95039, USA.', 'institution_ids': ['https://openalex.org/I1319261023']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5019158189', 'display_name': 'Salvador E. Lluch‐Cota', 'orcid': 'https://orcid.org/0000-0003-1832-1200'}, 'institutions': [], 'countries': ['MX', 'US'], 'is_corresponding': False, 'raw_author_name': 'Salvador E. Lluch-Cota', 'raw_affiliation_strings': ['Fisheries Program, Northwest Biological Research Center, Post Office Box 128, La Paz, Baja California Sur, Mexico.'], 'affiliations': [{'raw_affiliation_string': 'Fisheries Program, Northwest Biological Research Center, Post Office Box 128, La Paz, Baja California Sur, Mexico.', 'institution_ids': []}]}, {'author_position': 'last', 'author': {'id': 'https://openalex.org/A5059314341', 'display_name': 'Miguel Ñiquen C.', 'orcid': None}, 'institutions': [{'id': 'https://openalex.org/I4210105401', 'display_name': 'Instituto del Mar del Peru', 'ror': 'https://ror.org/01gbk3827', 'country_code': 'PE', 'type': 'government', 'lineage': ['https://openalex.org/I4210105401']}], 'countries': ['PE'], 'is_corresponding': False, 'raw_author_name': 'Miguel Ñiquen C.', 'raw_affiliation_strings': ['Instituto del Mar del Perú, Esq. Gamarra y Valle S/N, Apartado 22 Callao, Perú.'], 'affiliations': [{'raw_affiliation_string': 'Instituto del Mar del Perú, Esq. Gamarra y Valle S/N, Apartado 22 Callao, Perú.', 'institution_ids': ['https://openalex.org/I4210105401']}]}], 'institution_assertions': [], 'countries_distinct_count': 3, 'institutions_distinct_count': 2, 'corresponding_author_ids': [], 'corresponding_institution_ids': [], 'apc_list': None, 'apc_paid': None, 'fwci': 17.834, 'has_fulltext': True, 'fulltext_origin': 'ngrams', 'cited_by_count': 1598, 'citation_normalized_percentile': {'value': 0.98773, 'is_in_top_1_percent': False, 'is_in_top_10_percent': True}, 'cited_by_percentile_year': {'min': 99, 'max': 100}, 'biblio': {'volume': '299', 'issue': '5604', 'first_page': '217', 'last_page': '221'}, 'is_retracted': False, 'is_paratext': False, 'primary_topic': {'id': 'https://openalex.org/T10029', 'display_name': 'Climate variability and models', 'score': 0.9951, 'subfield': {'id': 'https://openalex.org/subfields/2306', 'display_name': 'Global and Planetary Change'}, 'field': {'id': 'https://openalex.org/fields/23', 'display_name': 'Environmental Science'}, 'domain': {'id': 'https://openalex.org/domains/3', 'display_name': 'Physical Sciences'}}, 'topics': [{'id': 'https://openalex.org/T10029', 'display_name': 'Climate variability and models', 'score': 0.9951, 'subfield': {'id': 'https://openalex.org/subfields/2306', 'display_name': 'Global and Planetary Change'}, 'field': {'id': 'https://openalex.org/fields/23', 'display_name': 'Environmental Science'}, 'domain': {'id': 'https://openalex.org/domains/3', 'display_name': 'Physical Sciences'}}, {'id': 'https://openalex.org/T10230', 'display_name': 'Marine and fisheries research', 'score': 0.992, 'subfield': {'id': 'https://openalex.org/subfields/2306', 'display_name': 'Global and Planetary Change'}, 'field': {'id': 'https://openalex.org/fields/23', 'display_name': 'Environmental Science'}, 'domain': {'id': 'https://openalex.org/domains/3', 'display_name': 'Physical Sciences'}}, {'id': 'https://openalex.org/T10255', 'display_name': 'Oceanographic and Atmospheric Processes', 'score': 0.9868, 'subfield': {'id': 'https://openalex.org/subfields/1910', 'display_name': 'Oceanography'}, 'field': {'id': 'https://openalex.org/fields/19', 'display_name': 'Earth and Planetary Sciences'}, 'domain': {'id': 'https://openalex.org/domains/3', 'display_name': 'Physical Sciences'}}], 'keywords': [], 'concepts': [{'id': 'https://openalex.org/C2779215912', 'wikidata': 'https://www.wikidata.org/wiki/Q5141254', 'display_name': 'Sardine', 'level': 3, 'score': 0.94629085}, {'id': 'https://openalex.org/C2778525234', 'wikidata': 'https://www.wikidata.org/wiki/Q192662', 'display_name': 'Anchovy', 'level': 3, 'score': 0.92107695}, {'id': 'https://openalex.org/C111368507', 'wikidata': 'https://www.wikidata.org/wiki/Q43518', 'display_name': 'Oceanography', 'level': 1, 'score': 0.65168464}, {'id': 'https://openalex.org/C39432304', 'wikidata': 'https://www.wikidata.org/wiki/Q188847', 'display_name': 'Environmental science', 'level': 0, 'score': 0.60026366}, {'id': 'https://openalex.org/C2984876570', 'wikidata': 'https://www.wikidata.org/wiki/Q98', 'display_name': 'Pacific ocean', 'level': 2, 'score': 0.5533613}, {'id': 'https://openalex.org/C132651083', 'wikidata': 'https://www.wikidata.org/wiki/Q7942', 'display_name': 'Climate change', 'level': 2, 'score': 0.46792364}, {'id': 'https://openalex.org/C49204034', 'wikidata': 'https://www.wikidata.org/wiki/Q52139', 'display_name': 'Climatology', 'level': 1, 'score': 0.4276453}, {'id': 'https://openalex.org/C505870484', 'wikidata': 'https://www.wikidata.org/wiki/Q180538', 'display_name': 'Fishery', 'level': 1, 'score': 0.3232209}, {'id': 'https://openalex.org/C2909208804', 'wikidata': 'https://www.wikidata.org/wiki/Q127282', 'display_name': 'Fish <Actinopterygii>', 'level': 2, 'score': 0.21946996}, {'id': 'https://openalex.org/C127313418', 'wikidata': 'https://www.wikidata.org/wiki/Q1069', 'display_name': 'Geology', 'level': 0, 'score': 0.21620217}, {'id': 'https://openalex.org/C86803240', 'wikidata': 'https://www.wikidata.org/wiki/Q420', 'display_name': 'Biology', 'level': 0, 'score': 0.06077209}], 'mesh': [{'descriptor_ui': 'D002980', 'descriptor_name': 'Climate', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': True}, {'descriptor_ui': 'D017753', 'descriptor_name': 'Ecosystem', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': True}, {'descriptor_ui': 'D005399', 'descriptor_name': 'Fishes', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': True}, {'descriptor_ui': 'D012623', 'descriptor_name': 'Seawater', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': True}, {'descriptor_ui': 'D000818', 'descriptor_name': 'Animals', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D001272', 'descriptor_name': 'Atmosphere', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D001717', 'descriptor_name': 'Birds', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D002245', 'descriptor_name': 'Carbon Dioxide', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D010140', 'descriptor_name': 'Pacific Ocean', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D013696', 'descriptor_name': 'Temperature', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D013997', 'descriptor_name': 'Time Factors', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}], 'locations_count': 2, 'locations': [{'is_oa': False, 'landing_page_url': 'https://doi.org/10.1126/science.1075880', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S3880285', 'display_name': 'Science', 'issn_l': '0036-8075', 'issn': ['0036-8075', '1095-9203'], 'is_oa': False, 'is_in_doaj': False, 'is_core': True, 'host_organization': 'https://openalex.org/P4310315823', 'host_organization_name': 'American Association for the Advancement of Science', 'host_organization_lineage': ['https://openalex.org/P4310315823'], 'host_organization_lineage_names': ['American Association for the Advancement of Science'], 'type': 'journal'}, 'license': None, 'license_id': None, 'version': None, 'is_accepted': False, 'is_published': False}, {'is_oa': False, 'landing_page_url': 'https://pubmed.ncbi.nlm.nih.gov/12522241', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S4306525036', 'display_name': 'PubMed', 'issn_l': None, 'issn': None, 'is_oa': False, 'is_in_doaj': False, 'is_core': False, 'host_organization': 'https://openalex.org/I1299303238', 'host_organization_name': 'National Institutes of Health', 'host_organization_lineage': ['https://openalex.org/I1299303238'], 'host_organization_lineage_names': ['National Institutes of Health'], 'type': 'repository'}, 'license': None, 'license_id': None, 'version': None, 'is_accepted': False, 'is_published': False}], 'best_oa_location': None, 'sustainable_development_goals': [{'display_name': 'Life below water', 'id': 'https://metadata.un.org/sdg/14', 'score': 0.7}], 'grants': [], 'datasets': [], 'versions': [], 'referenced_works_count': 32, 'referenced_works': ['https://openalex.org/W1503338367', 'https://openalex.org/W1521548168', 'https://openalex.org/W1523192224', 'https://openalex.org/W1964964907', 'https://openalex.org/W1980051345', 'https://openalex.org/W2006959528', 'https://openalex.org/W2007668410', 'https://openalex.org/W2013498125', 'https://openalex.org/W2014205773', 'https://openalex.org/W2022667217', 'https://openalex.org/W2027543152', 'https://openalex.org/W2041314632', 'https://openalex.org/W2042898683', 'https://openalex.org/W2052584778', 'https://openalex.org/W2068446333', 'https://openalex.org/W2082215781', 'https://openalex.org/W2088940162', 'https://openalex.org/W2089701218', 'https://openalex.org/W2090880291', 'https://openalex.org/W2093401535', 'https://openalex.org/W2095771230', 'https://openalex.org/W2098719346', 'https://openalex.org/W2136321601', 'https://openalex.org/W2143121839', 'https://openalex.org/W2144292431', 'https://openalex.org/W2145411765', 'https://openalex.org/W2147451947', 'https://openalex.org/W2150409437', 'https://openalex.org/W2152846356', 'https://openalex.org/W2156578098', 'https://openalex.org/W2996116074', 'https://openalex.org/W335815372'], 'related_works': ['https://openalex.org/W4285673008', 'https://openalex.org/W4234204869', 'https://openalex.org/W4223437350', 'https://openalex.org/W2769200027', 'https://openalex.org/W2149145072', 'https://openalex.org/W2105961596', 'https://openalex.org/W2076563826', 'https://openalex.org/W1972005075', 'https://openalex.org/W1917242878', 'https://openalex.org/W1672782276'], 'abstract_inverted_index': {'In': [0, 33], 'the': [1, 17, 34, 36, 58, 79], 'Pacific': [2, 37], 'Ocean,': [3], 'air': [4], 'and': [5, 14, 16, 21, 78], 'ocean': [6, 23, 82], 'temperatures,': [7], 'atmospheric': [8], 'carbon': [9], 'dioxide,': [10], 'landings': [11], 'of': [12, 19, 29, 81], 'anchovies': [13], 'sardines,': [15], 'productivity': [18], 'coastal': [20], 'open': [22], 'ecosystems': [24], 'have': [25], 'varied': [26], 'over': [27], 'periods': [28], 'about': [30], '50': [31], 'years.': [32], 'mid-1970s,': [35], 'changed': [38], 'from': [39], 'a': [40, 45], 'cool': [41], '“anchovy': [42], 'regime”': [43], 'to': [44, 52, 60], 'warm': [46], '“sardine': [47], 'regime.”': [48], 'A': [49], 'shift': [50], 'back': [51], 'an': [53], 'anchovy': [54], 'regime': [55], 'occurred': [56], 'in': [57], 'middle': [59], 'late': [61], '1990s.': [62], 'These': [63], 'large-scale,': [64], 'naturally': [65], 'occurring': [66], 'variations': [67], 'must': [68], 'be': [69], 'taken': [70], 'into': [71], 'account': [72], 'when': [73], 'considering': [74], 'human-induced': [75], 'climate': [76], 'change': [77], 'management': [80], 'living': [83], 'resources.': [84]}, 'cited_by_api_url': 'https://api.openalex.org/works?filter=cites:W2149567119', 'counts_by_year': [{'year': 2024, 'cited_by_count': 25}, {'year': 2023, 'cited_by_count': 45}, {'year': 2022, 'cited_by_count': 67}, {'year': 2021, 'cited_by_count': 91}, {'year': 2020, 'cited_by_count': 72}, {'year': 2019, 'cited_by_count': 78}, {'year': 2018, 'cited_by_count': 86}, {'year': 2017, 'cited_by_count': 73}, {'year': 2016, 'cited_by_count': 60}, {'year': 2015, 'cited_by_count': 80}, {'year': 2014, 'cited_by_count': 81}, {'year': 2013, 'cited_by_count': 105}, {'year': 2012, 'cited_by_count': 84}], 'updated_date': '2024-12-15T02:14:55.996258', 'created_date': '2016-06-24'}