Fisheries Oceanography最新文献

{"title":"Effect of interannual variations of Kuroshio–Tsushima Warm Current system on the transportation of juvenile Japanese jack mackerel (Trachurus japonicus) to the Pacific coast of Japan","authors":"Yosuke Igeta,&nbsp;Chiyuki Sassa,&nbsp;Motomitsu Takahashi,&nbsp;Mizuki Kuga,&nbsp;Satoshi Kitajima,&nbsp;Taku Wagawa,&nbsp;Shoko Abe,&nbsp;Chikako Watanabe,&nbsp;Takashi Setou,&nbsp;Hirohiko Nakamura,&nbsp;Naoki Hirose","doi":"10.1111/fog.12622","DOIUrl":"10.1111/fog.12622","url":null,"abstract":"<p>Recruitment of Japanese jack mackerel (<i>Trachurus japonicus</i>) has been decreasing continuously since 2000 in the Pacific coastal waters of Japan. The reasons and mechanisms for this phenomenon are still unclear. Particle-tracking experiments were performed using a data assimilation model to elucidate the effect of a current system on the transportation processes of <i>T. japonicus</i> from the main spawning ground in the southern East China Sea to the Pacific coastal waters. The experiments demonstrated that <i>T. japonicus</i> were transported from the southern East China Sea to the Pacific waters around western Japan through the Tokara Strait, and the number of particles transported to the Pacific decreased from 2000 to 2017. The particles passing through the northwest Tokara Strait tended to be transported to the Pacific side during 2000–2005 and to the Sea of Japan during 2006–2017. The bifurcation toward the Sea of Japan was due to an amplification of the northward current where the Tsushima Warm Current originates (west of Kyushu). This change was induced by a rising sea level west of Kyushu due to Kuroshio's northward shift along the western Pacific coast of Japan, which induced the Tsushima Strait through flow to strengthen. The decrease in larval transportation due to the current system change can be one of the causes for the recruitment decline of <i>T. japonicus</i> along the Pacific coast.</p>","PeriodicalId":51054,"journal":{"name":"Fisheries Oceanography","volume":"32 1","pages":"133-146"},"PeriodicalIF":2.6,"publicationDate":"2022-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48750744","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Changes in the vertical distribution of age-0 walleye pollock (Gadus chalcogrammus) during warm and cold years in the southeastern Bering Sea","authors":"Adam Spear,&nbsp;Alexander G. Andrews III,&nbsp;Janet Duffy-Anderson,&nbsp;Tayler Jarvis,&nbsp;David Kimmel,&nbsp;Denise McKelvey","doi":"10.1111/fog.12618","DOIUrl":"10.1111/fog.12618","url":null,"abstract":"<p>In the last 20 years, the southeastern Bering Sea has shifted its thermal variability to longer-term (4–6 years) ocean–ecosystem temperature stanzas. Age-0 walleye pollock (<i>Gadus chalcogrammus</i>) populations respond to thermal changes with horizontal (east–west) shifts in spatial distribution over the continental shelf, though there are limited data on whether thermally mediated vertical shifts in distribution also occur. Vertical shifts may impact predator–prey overlap between age-0 pollock and their lipid-rich prey, calanoid copepods and euphausiids, resulting in different feeding conditions that ultimately affect fish body condition prior to winter onset. For this study, we analyzed acoustic backscatter measured during acoustic trawl surveys over the southeastern Bering Sea shelf in cold years (2011, 2012) and warm years (2014 and 2016) to determine the vertical distribution of age-0 pollock. This study presents evidence that age-0 pollock changes in vertical distribution were related to changes in ocean annual temperature. Age-0 pollock went from occurring deeper in the water column during cold periods to being surface-oriented during warm periods, potentially exacerbating spatial mismatches between pollock and prey. We relate patterns in a vertical position to physical water column properties, feeding, and bioenergetic condition of collected pollock and discuss implications for recruitment success during different thermal oceanographic stanzas.</p>","PeriodicalId":51054,"journal":{"name":"Fisheries Oceanography","volume":"32 2","pages":"177-195"},"PeriodicalIF":2.6,"publicationDate":"2022-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45051754","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effects of oceanography on North Pacific armorhead recruitment in the Emperor Seamounts","authors":"Madeline A. K. Lavery,&nbsp;Christopher N. Rooper,&nbsp;Kota Sawada,&nbsp;Kari Fenske,&nbsp;Vladimir Kulik,&nbsp;Kyum Joon Park","doi":"10.1111/fog.12612","DOIUrl":"10.1111/fog.12612","url":null,"abstract":"<p>The North Pacific armorhead (NPA), <i>Pentaceros wheeleri</i>, is thought to exhibit an extended post-spawning epipelagic phase in which larvae disperse to the northeast Pacific Ocean. Current understanding of juvenile distribution, development, and mechanisms that drive recruitment variation, however, remains largely incomplete. The objective of this study was to compare a time series of NPA recruitment to established climate indices and to environmental covariates to explore drivers of the NPA life cycle. Additionally, this work investigates potential larval NPA transport pathways and their positional relationships to the proposed northeastern nursery grounds. Using Lagrangian particle tracking, trajectories of passive larvae were simulated at depths of 0 and 15 m for 18 years (2001–2018) from the Southern Emperor-Northern Hawaiian Ridge (SE-NHR) natal habitat. Dispersal distances and particle end positions were examined for their potential relationships with recruitment. Sea surface temperature and net primary productivity were evaluated as predictor variables using generalized additive modeling. Neither regression of particle end-point characteristics nor environmental covariates resulted in significant correlations with recruitment here, perhaps owing to data limitations surrounding the nursery zone. Particles were found to be advected largely within the North Pacific transition zone in the central north Pacific. Significant seasonal correlations were found between recruitment and the Arctic Oscillation, Pacific Decadal Oscillation and North Pacific Gyre Oscillation, suggesting that NPA recruitment mechanisms respond to interannual ocean-atmospheric climate oscillations. Better knowledge of the connections between recruitment and the environment would be valuable for stock management, and improvements for advection predictions are discussed.</p>","PeriodicalId":51054,"journal":{"name":"Fisheries Oceanography","volume":"32 2","pages":"160-176"},"PeriodicalIF":2.6,"publicationDate":"2022-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/fog.12612","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41448333","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"In Memoriam: Timothy R. Parsons (1932–2022)","authors":"R. Perry","doi":"10.1111/fog.12617","DOIUrl":"https://doi.org/10.1111/fog.12617","url":null,"abstract":"","PeriodicalId":51054,"journal":{"name":"Fisheries Oceanography","volume":"1 1","pages":""},"PeriodicalIF":2.6,"publicationDate":"2022-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"63459248","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"In Memoriam: Timothy R. Parsons (1932–2022)","authors":"R. Ian Perry","doi":"10.1111/fog.12617","DOIUrl":"https://doi.org/10.1111/fog.12617","url":null,"abstract":"<p>One of the world's pre-eminent marine scientists and the founding editor of <i>Fisheries Oceanography</i>, Professor Timothy (Tim) R. Parsons, passed away peacefully in hospital in April 2022. He was passionate about building a holistic understanding of how pelagic organisms are interconnected in the food-webs of the sea, and about presenting alternative methods for the management of fisheries. For these activities and many others, he was the recipient of many international awards and honours. He had a profound influence on many students and colleagues, and leaves behind a foundational body of work on fisheries oceanography.</p>","PeriodicalId":51054,"journal":{"name":"Fisheries Oceanography","volume":"32 1","pages":"10-14"},"PeriodicalIF":2.6,"publicationDate":"2022-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50150863","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"On the occasion of the 30th anniversary of Fisheries Oceanography","authors":"Shingo Kimura","doi":"10.1111/fog.12616","DOIUrl":"10.1111/fog.12616","url":null,"abstract":"&lt;p&gt;I would like to express my sincere congratulations on the 30th anniversary of the founding of &lt;i&gt;Fisheries Oceanography&lt;/i&gt;.&lt;/p&gt;&lt;p&gt;At that time, Professor T. R. Parsons of the University of British Columbia, Canada, and Professor Takashige Sugimoto of the Ocean Research Institute of the University of Tokyo led the preparations for the establishment of an international academic journal “&lt;i&gt;Fisheries Oceanography&lt;/i&gt; (&lt;i&gt;FOG&lt;/i&gt;)” with the aim of deepening the discipline of fisheries oceanography on a global scale. The Japanese Society of Fisheries Oceanography (JSFO) defines the main research areas of fisheries oceanography as (1) oceanographic conditions that define the distribution of fishery-useful species, (2) oceanographic tools for estimating the abundance of target species and the productivity of fishing grounds, (3) oceanographic conditions for predicting changes in distribution and abundance, and (4) oceanographic contributions to the enhancement and development of fishery productivity. There were growing expectations for the establishment of an international academic journal that would meet these requirements. Prior to the journal establishment, JSFO held the 30th Anniversary Symposium “Promising Fisheries Oceanography in Japan” in Japan in 1991, and in 1986, the 25th Anniversary Symposium “Fisheries and Fisheries Oceanography in the Coming Century” was held in Tokyo, inviting Dr. D. H. Cushing (UK) and Dr. R. Lasker (USA) as keynote speakers. These symposia gave the momentum to publish the journal with an association in Japan. In the end, &lt;i&gt;FOG&lt;/i&gt; was first published by Blackwell Scientific Publications (UK) in 1992 with JSFO as the sponsoring association. Now published by John Wiley &amp; Sons, &lt;i&gt;FOG&lt;/i&gt; has been the international journal of the JSFO since 2001.&lt;/p&gt;&lt;p&gt;At that time, I had just started my research career and I remember that I had been supporting Professor Sugimoto in his efforts to encourage more important and cutting-edge papers to be submitted to the journal and to develop it into a high-level international academic journal. On this occasion of the 30th anniversary of &lt;i&gt;FOG&lt;/i&gt;, it is with great emotion that I address you as the President of JSFO.&lt;/p&gt;&lt;p&gt;Researchers in fisheries oceanography are expected to develop research related to both fisheries and the ocean that is closely linked to the field of fishing, and &lt;i&gt;FOG&lt;/i&gt; has the scent of fish and the scent of the ocean. &lt;i&gt;FOG&lt;/i&gt; is a unique international academic journal, and it can be said to be an international academic journal that was inspired by Professor Michitaka Uda, the first president of the JSFO. The &lt;i&gt;FOG&lt;/i&gt; not only strives for the exploration of fisheries oceanography as a basic science but has also made a great contribution to the development of fisheries oceanography by producing many talented human resources to educational/research institutions, government agencies, and industry. Many Japanese fisheries oceanographers have contributed to ","PeriodicalId":51054,"journal":{"name":"Fisheries Oceanography","volume":"32 1","pages":"1-2"},"PeriodicalIF":2.6,"publicationDate":"2022-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/fog.12616","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49542738","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Larval occurrence and environmental factors associated with spawning of Pacific oyster Crassostrea gigas in Matsushima Bay, Japan","authors":"Katsumi Yokouchi,&nbsp;Hiroshi Ito,&nbsp;Mai Togawa,&nbsp;Kenichi Ueda,&nbsp;Shigeho Kakehi","doi":"10.1111/fog.12615","DOIUrl":"10.1111/fog.12615","url":null,"abstract":"<p>The spawning of Pacific oysters is an important phenomenon for aquaculture because the Japanese oyster culture industry has traditionally utilized natural seed collection from sea areas. The relationship between spawning and environmental factors was investigated on the spawning dates, which were estimated from larval occurrence based on the temperature-dependent growth rate from 2012 to 2020 in Matsushima Bay, a key area for oyster seedling production located in eastern Japan. The annual minimum temperature tended to increase and occur earlier during the 9 years, suggesting warming in the bay. The integrated temperature reaching 600°C, which is as an index for the onset of spawning, was limited to 9 days from late June to early July, and exhibited no trends. Larval abundance at each spawning had a significant relationship with the change of sunshine hours from the previous day, the daily mean seawater temperature, and the maximum tidal range. With relatively extreme environmental factors, mass spawning between neap and half tides was more frequent than one during other tides. A significant relationship was found between precipitation during the rainy season and the mass spawning dates. An empirical method of predicting a mass spawning date was proposed using the relationship to precipitation during the rainy season to ensure efficient seedlings and a constant nationwide supply of Pacific oysters for the aquaculture industry.</p>","PeriodicalId":51054,"journal":{"name":"Fisheries Oceanography","volume":"31 6","pages":"641-652"},"PeriodicalIF":2.6,"publicationDate":"2022-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45430366","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Long-term series variation in fishery biology of Dosidicus gigas off Peru: Response to climate variability from 2008 to 2020","authors":"Ya Ting Dan,&nbsp;Bi Lin Liu,&nbsp;Xin Jun Chen,&nbsp;Wei Guo Qian","doi":"10.1111/fog.12613","DOIUrl":"10.1111/fog.12613","url":null,"abstract":"<p>As a cephalopod with a short life cycle, the <i>Dosidicus gigas</i> (jumbo flying squid) is extremely sensitive to climate variability and marine environment changes in terms of individual growth and resource changes. Based on 7514 <i>D. gigas</i> samples collected off Peru from 2008 to 2020, the fishery biological characteristics such as size, sexual maturity, and size-at-maturity were analyzed to explore the impacts of climate variability on individual growth. The results showed that there were significant differences in the relationship between mantle length and body weight and in the composition of sexual maturity between male and female individuals in different years (<i>P</i> &lt; .05). La Niña events were conducive to the individual growth of <i>D. gigas</i> and slowed down their sexual maturity, producing <i>D. gigas</i> groups in medium and large sizes; El Niño events inhibited the individual growth of <i>D. gigas</i> and accelerated their sexual maturity, producing <i>D. gigas</i> groups in a smaller size. From 2008 to 2020, the mantle length of the small-size group decreased by 46 mm, while that of the medium-size group increased by 28 mm. Size-at-maturity of female <i>D. gigas</i> decreased by 201.2 mm and that of male <i>D. gigas</i> decreased by 143 mm. The study concluded that the changes in the marine environment caused by climate variability from 2008 to 2020 have had a significant impact on the population structure, growth, and development of the <i>D. gigas</i> off Peru.</p>","PeriodicalId":51054,"journal":{"name":"Fisheries Oceanography","volume":"31 6","pages":"629-640"},"PeriodicalIF":2.6,"publicationDate":"2022-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48903023","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Impact of warming and deoxygenation on the habitat distribution of Pacific halibut in the Northeast Pacific","authors":"Ana C. Franco,&nbsp;Hongsik Kim,&nbsp;Hartmut Frenzel,&nbsp;Curtis Deutsch,&nbsp;Debby Ianson,&nbsp;U. Rashid Sumaila,&nbsp;Philippe D. Tortell","doi":"10.1111/fog.12610","DOIUrl":"10.1111/fog.12610","url":null,"abstract":"<p>Ocean warming and deoxygenation are already modifying the habitats of many aerobic organisms. Benthic habitat in the Northeast Pacific is sensitive to deoxygenation, as low oxygen concentrations occur naturally in continental shelf bottom waters. Here, we examine the potential impacts of deoxygenation and ocean warming on the habitat distribution of Pacific halibut (<i>Hippoglossus stenolepis</i>), one of the most commercially important groundfish in North America. We combine fisheries-independent Pacific halibut survey data (1998–2020) with oceanographic measurements and a regional ocean circulation model to investigate current and future (end of 21st century) influences of deoxygenation and warming on optimal Pacific halibut habitat. We use the observations and model output to derive a metabolic index of Pacific halibut-specific suitable habitat. Our results show high Pacific halibut counts in regions where the metabolic index is greatest and demonstrate that interannual variability in Pacific halibut abundance is coherent with the Pacific Decadal Oscillation. Working with model projections, we examine potential future changes in suitable Pacific halibut habitat by the end of the century under a high carbon dioxide emissions scenario. These projections indicate that suitable Pacific halibut habitat may largely disappear off the coast of Washington state, retreating approximately 5° latitude northward. In bottom waters along coastal British Columbia and Alaska continental shelf, Pacific halibut habitat is projected to decrease by about 50%. Such habitat changes may potentially drive a northward shift in Pacific halibut, with significant implications for commercial fisheries.</p>","PeriodicalId":51054,"journal":{"name":"Fisheries Oceanography","volume":"31 6","pages":"601-614"},"PeriodicalIF":2.6,"publicationDate":"2022-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46145411","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Spatial differences in estuarine utilization by seasonally resident species in Mid-Atlantic Bight, USA","authors":"Adena J. Schonfeld,&nbsp;James Gartland,&nbsp;Robert J. Latour","doi":"10.1111/fog.12611","DOIUrl":"10.1111/fog.12611","url":null,"abstract":"<p>Climate-driven distributional shifts have been well-documented for fisheries resources along the East Coast of the United States, yet little attention has been given to adjacent estuarine systems. The Chesapeake Bay is the largest estuary in the continental United States and serves as important habitat for a diversity of fishes and invertebrates, many of which are seasonal residents. Survey data indicate that relative abundance of finfish in Chesapeake Bay has diminished substantially, while coastwide stock status has remained unchanged. In response to warming, seasonal estuarine residents may remain in coastal waters or inhabit a northerly estuary, but the extent to which changing environmental conditions may drive exchange between the coastal ocean and estuarine systems remains unresolved. This study analyzed data collected from 2008 to 2019 by three fisheries-independent trawl surveys to explore temporal patterns and associated environmental drivers of the estuarine–coastal ocean exchange in the Mid-Atlantic for eight economically and ecologically important species. Relative habitat utilization of Chesapeake Bay declined for most species, while utilization patterns for Delaware Bay were largely constant or increasing over time. Broad-scale, multispecies analyses of relative habitat utilization time series revealed that the North Atlantic Oscillation (NAO) was an important driver of Chesapeake Bay exchange, but that average Apr/May coastal ocean bottom temperature was significant for Delaware Bay. Collectively, the results demonstrate that several Mid-Atlantic species have altered their estuarine habitat use over time, climate drivers associated with estuarine–coastal ocean exchange operate on different time scales, and that the impacts of warming within the Mid-Atlantic vary spatially.</p>","PeriodicalId":51054,"journal":{"name":"Fisheries Oceanography","volume":"31 6","pages":"615-628"},"PeriodicalIF":2.6,"publicationDate":"2022-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/fog.12611","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45631235","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}