Netherlands Journal of Sea Research最新文献

{"title":"Recruitment and recruitment processes of winter flounder, Pleuronectes americanus, at different latitudes, implications of an individual-based simulation model","authors":"R.C. Chambers ,&nbsp;K.A. Rose ,&nbsp;J.A. Tyler","doi":"10.1016/0077-7579(95)90012-8","DOIUrl":"https://doi.org/10.1016/0077-7579(95)90012-8","url":null,"abstract":"<div><p>We evaluate the joint effects of temperature, hours of daylight, prey production, spawning regimes, and mortality rates on recruitment of winter flounder, <em>Pleuronectes americanus</em>, by means of an individual-based simulation model. These factors were varied to approximate conditions at three latitudinally distinct sites in winter flounder's geographic range from New Jersey, USA (southernmost site) to New Brunswick, Canada (northernmost site). Most life historical and demographic response variables from simulation output differed substantially among sites. At year's end, the recruits were larger but fewer at lower latitudes than at higher ones. We further assessed the effects of season duration, prey production, and mortality rate on recruitment by means of a 3³-factorial numerical experiment. This analysis provided estimates of the proportion of variance in the response variables (the number and sizes of recruits, larval and juvenile growth rates, larval period duration) due to each of the three manipulated factors and their interactions. Season duration explained most of the variation in the responses except for the sizes of recruits at year's end which was influenced most by the timing of prey production. Interaction effects of season duration and prey production were evident in all responses, reflecting the importance to flounder recruitment of the phenology of prey production relative to flounder early life history. Even though mortality rates were assigned as part of the factorial design structure, they accounted for only 10% of the variance in the number of recruits. These simulation results are in need of empirical verification and we suggest ways to proceed. We also propose means of enhancing data on winter flounder life history and ecology, and methods for expanding our model and analysis. We conclude that our approach proved useful for 1. appraising multiple, interacting recruitment processes, 2. locating areas where incomplete knowledge of winter flounder life history and the habitat it occupies limits a more satisfactory assessment of recruitment processes, and 3. identifying recruitment hypotheses that warrant further empirical evaluation.</p></div>","PeriodicalId":100948,"journal":{"name":"Netherlands Journal of Sea Research","volume":"34 1","pages":"Pages 19-43"},"PeriodicalIF":0.0,"publicationDate":"1995-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0077-7579(95)90012-8","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72110912","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Influence of light and salinity on behaviour of larval Japanese flounder (Paralichthys olivaceus) and implications for inshore migration","authors":"John Selden Burke ,&nbsp;Masaru Tanaka ,&nbsp;Tadahisa Seikai","doi":"10.1016/0077-7579(95)90014-4","DOIUrl":"https://doi.org/10.1016/0077-7579(95)90014-4","url":null,"abstract":"<div><p>Vertical movements are a fundamental part of tidal transport, a migration strategy found in many coastal fishes. Because light is considered important to vertical migration, the ontogeny of eye development, phototaxis and vertically oriented behaviour were examined for different metamorphic stages of Japanese flounder larvae (<em>Paralichthys olivaceus</em>). The timing of rod recruitment to the retina and the development of the ability to dark adapt were investigated histologically. Phototaxis experiments were conducted to determine when during development phototactic behaviour changed. Observations of vertical movements were made using infrared sensitive video equipment. Larvae raised at S=32 were observed at S=30, 32 and 34 under changing light conditions. Light was increased from nocturnal to daytime levels in log steps while swimming and settling behaviour was observed. Settling behaviour was apparent during the early stages of metamorphosis and increased with development. Larvae in the early stages of metamorphosis responded to night time light levels by swimming up. Larvae were more active in water of higher salinity relative to their acclimation salinity and were more likely to settle in water of lower salinity. During the late stages of metamorphosis, the importance of light to activity decreased, increasing the relative importance of salinity. Results are consistent with the hypothesis that tidal migration develops as diurnal vertical migration controlled by light is replaced by tidal movement cued by changes in salinity. Our findings suggest that efficient transport of larvae inshore depends on a clear salinity signal and that variability in such a signal may influence migration success.</p></div>","PeriodicalId":100948,"journal":{"name":"Netherlands Journal of Sea Research","volume":"34 1","pages":"Pages 59-69"},"PeriodicalIF":0.0,"publicationDate":"1995-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0077-7579(95)90014-4","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72110916","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Growth of juvenile halibut (Hippoglossus hippoglossus) related to temperature, day length and feeding regime","authors":"Hogne Hallaråker,&nbsp;Arild Folkvord,&nbsp;Sigurd O. Stefansson","doi":"10.1016/0077-7579(95)90022-5","DOIUrl":"https://doi.org/10.1016/0077-7579(95)90022-5","url":null,"abstract":"<div><p>Experimental studies with farmed juvenile halibut, <em>Hippoglossus hippoglossus</em>, were undertaken to optimize rearing procedures. Extended feeding period and/or day length did not significantly increase growth rates of juvenile halibut of 5 to 20 g wet weight. Growth was strongly affected by temperature, and highest growth rates were obtained at 13°C followed by 10, 16 and 7°C for juveniles of 20 to 90 g. Growth rate declined with size in one of two experiments in this size interval. Q₁₀ of daily growth rate between 7 and 10°C varied from 2.5 to 3.0. Individual growth always varied highly within the temperature treatments (overall range −0.3 – 3.5%·d⁻¹), but significant size rank correlations were maintained during the 12-week experiment. Juvenile halibut grew approximately isometrically from 20 to 90 g. Weight-specific oxygen consumptions of 80 g juveniles averaged 140 and 200 mg O₂ (kg·h)⁻¹ at 10 and 16°C, respectively, and this is comparable to rates measured for other flatfish species.</p></div>","PeriodicalId":100948,"journal":{"name":"Netherlands Journal of Sea Research","volume":"34 1","pages":"Pages 139-147"},"PeriodicalIF":0.0,"publicationDate":"1995-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0077-7579(95)90022-5","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72110921","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Life history cycles of flatfish species in the Bohai Sea, China","authors":"Dou Shuozeng","doi":"10.1016/0077-7579(95)90027-6","DOIUrl":"https://doi.org/10.1016/0077-7579(95)90027-6","url":null,"abstract":"<div><p>This paper provides basic information on the general ecology and life history cycles of various flatfish species in the Bohai Sea, China. The species studied are <em>Paralichthys olivaceus</em> (Temminck &amp; Schlegel), <em>Cleisthenes herzensteini</em> (Schmidt), <em>Eopsetta grigorjewi</em> (Herzenstein), <em>Verasper variegatus</em> (Temminck &amp; Schlegel), <em>Pleuronichthys cornutus</em> (Temminck &amp; Schlegel), <em>Pseudopleuronectes yokohamae</em> (Günther), <em>Pseudopleuronectes herzensteini</em> (Jordan &amp; Snyder), <em>Kareius bicoloratus</em> (Basilewsky), <em>Zebrias zebra</em> (Bloch), <em>Cynoglossus semilaevis</em> Günther, <em>Cynoglossus abbreviatus</em> (Gray) and <em>Cynoglossus joyneri</em> Günther. Information on reproduction, eggs and larval distribution, growth and adult abundance is presented. Based on the biology and ecology of these flatfish, artificial enhancement of the commercial species in the Bohai Sea is discussed.</p></div>","PeriodicalId":100948,"journal":{"name":"Netherlands Journal of Sea Research","volume":"34 1","pages":"Pages 195-210"},"PeriodicalIF":0.0,"publicationDate":"1995-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0077-7579(95)90027-6","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72112204","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effects of PCB contamination on the reproduction of the DAB Limanda limanda L. under laboratory conditions","authors":"Mark Fonds,&nbsp;Elizabeth Casal,&nbsp;Dominik Schweizer,&nbsp;Jan P. Boon,&nbsp;Henk W. Van der Veer","doi":"10.1016/0077-7579(95)90015-2","DOIUrl":"https://doi.org/10.1016/0077-7579(95)90015-2","url":null,"abstract":"<div><p>The effect of PCB contamination on the reproduction of female dab was studied under laboratory conditions. Females were contaminated during gonad maturation by multiple oral administration of capsules containing the technical PCB mixture Clophen A40. PCB contamination resulted in increased levels in the eggs, with concentrations of selected PCB congeners of 35 to 86 μg·g⁻¹ lipid for PCB-exposed fish, 10 μg·g⁻¹ lipid for eggs from fish fed with mussel meat and fish fed with shrimp. A statistically significant dose-effect relationship was found between the PCB content of the eggs and the PCB dose ingested by the fish. For eggs from the PCB-treated fish the mean fertilization rate was 61% and mean hatching 45%, compared to 67% fertilization and 59% hatching for eggs from untreated fish. Rate of development and survival of the eggs and mortality of the larvae after hatching were mainly related to incubation temperature. No statistically significant differences between untreated and PCB-treated fish could be found in egg production, egg quality, fertilization rate, hatching rate and survival of larvae.</p></div>","PeriodicalId":100948,"journal":{"name":"Netherlands Journal of Sea Research","volume":"34 1","pages":"Pages 71-79"},"PeriodicalIF":0.0,"publicationDate":"1995-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0077-7579(95)90015-2","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72110914","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Nursery area characteristics of pleuronectids in coastal Alaska, USA","authors":"Brenda L. Norcross,&nbsp;Brenda A. Holladay,&nbsp;Franz J. Müter","doi":"10.1016/0077-7579(95)90024-1","DOIUrl":"https://doi.org/10.1016/0077-7579(95)90024-1","url":null,"abstract":"<div><p>Juveniles of four species of pleuronectid flatfishes were abundant in bays and nearshore areas around Kodiak Island, Alaska during August 1991. Flatfish nursery areas located in deep water bays such as those surrounding Kodiak Island have not been previously reported. Age-0 rock sole (<em>Pleuronectes bilineatus</em>), flathead sole (<em>Hippoglossoides elassodon</em>), Pacific halibut (<em>Hippoglossus stenolepis</em>) and age-1 yellowfin sole (<em>Pleuronectes asper</em>) were collected close to one another and at first appeared to share nursery areas. Closer examination of associated within-bay distribution, depth, substrate, temperature and salinity data revealed characteristics which limited nursery area overlap. The major concentrations of juveniles of these species could usually be segregated by one or more of the physical parameters investigated. Based on the physical characteristics found to be most important in determining distribution of juveniles for each species, we hypothesize the following relationships. Age-0 rock sole are found predominantly in water depths less than 50 m, on sand or mixed sand substrate outside of or within bays. Age-0 flathead sole are found predominantly in water depths greater than 40 m, on mud or mixed mud substrate throughout bays. Age-0 Pacific halibut are found predominantly in water depths less than 40 m, on mixed sand substrate near or outside mouths of bays. Age-1 yellowfin sole are found predominantly in water depths less than 40 m, on mixed substrates at upper reaches of bays. These hypotheses will be field tested, after which the relationships may be considered for application to broader geographic areas.</p></div>","PeriodicalId":100948,"journal":{"name":"Netherlands Journal of Sea Research","volume":"34 1","pages":"Pages 161-175"},"PeriodicalIF":0.0,"publicationDate":"1995-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0077-7579(95)90024-1","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72110917","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Importance of food availability for growth of juvenile southern flounder (Paralichthys lethostigma) in the Pamlico River Estuary, North Carolina, USA","authors":"P. Kamermans, Kathryn Y. Guindon, John M. Miller","doi":"10.1016/0077-7579(95)90018-7","DOIUrl":"https://doi.org/10.1016/0077-7579(95)90018-7","url":null,"abstract":"","PeriodicalId":100948,"journal":{"name":"Netherlands Journal of Sea Research","volume":"66 1","pages":"101-109"},"PeriodicalIF":0.0,"publicationDate":"1995-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75925813","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"On the ecology of two sympatric flounders of the genus Paralichthys in the Bay of Coquimbo, Chile","authors":"E. Acuña, L. Cid","doi":"10.1016/0077-7579(95)90011-X","DOIUrl":"https://doi.org/10.1016/0077-7579(95)90011-X","url":null,"abstract":"","PeriodicalId":100948,"journal":{"name":"Netherlands Journal of Sea Research","volume":"26 1","pages":"7-18"},"PeriodicalIF":0.0,"publicationDate":"1995-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85986931","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The European regional seas ecosystem model, a complex marine ecosystem model","authors":"J. Baretta, W. Ebenhöh, P. Ruardij","doi":"10.1016/0077-7579(95)90047-0","DOIUrl":"https://doi.org/10.1016/0077-7579(95)90047-0","url":null,"abstract":"","PeriodicalId":100948,"journal":{"name":"Netherlands Journal of Sea Research","volume":"1 1","pages":"233-246"},"PeriodicalIF":0.0,"publicationDate":"1995-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77300848","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A structure and methodology for marine ecosystem modelling","authors":"J.C. Blackford,&nbsp;P.J. Radford","doi":"10.1016/0077-7579(95)90048-9","DOIUrl":"https://doi.org/10.1016/0077-7579(95)90048-9","url":null,"abstract":"<div><p>Comprehensive ecosystem models involve aspects from each of the biological, chemical and physical sciences. Consequently such models, for example the European Regional Seas Ecosystem Model (ERSEM), are often based on computer code written by a number of different research groups each with a well-defined area of responsibility. To construct a meaningful integrated model capable of combining the expertise from each of these disciplines requires a formalized ecosystem structure that provides a template for model development. Assumptions made at this stage will to a large extent determine the qualities of the resulting model. Essential too is a system of quality management that assures a correct and consistent end product. Such a system, however, requires the flexibility to allow the various contributors the freedom to pursue individual and novel representations of ecosystem function, if the model is to be ground breaking. The system adopted by the ERSEM group, which should have a wider applicability than marine ecosystem modelling, is described here. Finally, the methodology used to gauge the relative merits of alternative ecosystem representations is described.</p></div>","PeriodicalId":100948,"journal":{"name":"Netherlands Journal of Sea Research","volume":"33 3","pages":"Pages 247-260"},"PeriodicalIF":0.0,"publicationDate":"1995-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0077-7579(95)90048-9","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72079888","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}