ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

X
feed icon rss

Ihre E-Mail wurde erfolgreich gesendet. Bitte prüfen Sie Ihren Maileingang.

Leider ist ein Fehler beim E-Mail-Versand aufgetreten. Bitte versuchen Sie es erneut.

Vorgang fortführen?

Exportieren
  • 1
    facet.materialart.
    Unbekannt
    Stock assessments in the Mediterranean Sea 2021 – Adriatic and Ionian Seas (STECF-21-15). (2022)
    European Union | Luxembourg
    Details
    Publikationsdatum: 2022-01-14
    Beschreibung: Commission Decision of 25 February 2016 setting up a Scientific, Technical and Economic Committee for Fisheries, C(2016) 1084, OJ C 74, 26.2.2016, p. 4–10. The Commission may consult the group on any matter relating to marine and fisheries biology, fishing gear technology, fisheries economics, fisheries governance, ecosystem effects of fisheries, aquaculture or similar disciplines. This report is from STECF Expert Working Group 21-15: 2021 stock assessments of demersal stocks in Adriatic, Ionian and Aegean Seas from the meeting held remotely from 18th to 22th October 2021. A total of 9 fish stocks were evaluated. One stock had prior advice from 2020 for 2021 and 2022, and this is reiterated here. Index advice for 2022 and 2023 is provide for one other stock. The EWG reports age based assessments and short term forecasts for 5 of the remaining 7 stocks and surplus production assessments for two stocks. The content of the report gives the STECF terms of reference, the basis of the evaluations and advice, summaries of state of stock and advised based on either the MSY approach for assessed stocks or the precautionary approach for category 3 based advice. The report contains the full stock assessment reports for the 7 assessments, the exploration of assessments and category 3 evaluations for the remaining five stocks. The report also contains the STECF observations and conclusions on the assessment report. These conclusions come from the STECF Plenary meeting November 2021.
    Beschreibung: European Commission
    Beschreibung: European Union, Joint Research Centre
    Beschreibung: Published
    Beschreibung: Refereed
    Schlagwort(e): Fisheries economics ; Fisheries biology ; Fisheries governance ; Fishing gear technology ; Fish stock assessment ; Management advice ; MSY ; Modelling
    Repository-Name: AquaDocs
    Materialart: Report
    Format: 467pp
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    ARTIKEL (OA)
  • 2
    facet.materialart.
    Unbekannt
    Stock Assessments in the Mediterranean Sea – Adriatic, Ionian and Aegean Seas (STECF-20-15). (2022)
    European Union | Luxembourg
    Details
    Publikationsdatum: 2022-01-14
    Beschreibung: The working group was held in remotely, from 12th to 20th Sept 2020. The meeting was attended by 14 experts in total, including two STECF member and two JRC experts. The EWG had two observers who attended part time. The objective of the Mediterranean Methodology EWG 20-15 was to carry out assessments and provide draft advice for stocks identified in the ToR supplied by STECF. An initial plenary session commenced at 09:30 on the first day. The ToRs were discussed and examined in detail. Stocks were allocated to participants based on expertise. An ftp repository was created ad-hoc to share documents, data and scripts and prepare the report. The stocks were evaluated by the GSA groups identified in the ToRs. Most of the work was concluded by Tuesday 20 Sept, after 7 full days of work, and some additional work at the weekend. Over the 7 working days plenary sessions were held each day to monitor progress and share results. The overall conclusions for each stock were discussed and finalized in plenary on the Tuesday.
    Beschreibung: European Commission
    Beschreibung: European Union, Joint Research Centre
    Beschreibung: Published
    Beschreibung: Refereed
    Schlagwort(e): Fish stock assessment ; Fisheries biology ; Fisheries economics ; Fisheries governance ; Fishing gear technology ; Management advice ; Modelling ; MSY
    Repository-Name: AquaDocs
    Materialart: Report
    Format: 592pp
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    ARTIKEL (OA)
  • 3
    facet.materialart.
    Unbekannt
    Stock Assessments: demersal stocks in the western Mediterranean Sea (STECF-21-11). (2022)
    European Union | Luxembourg
    Details
    Publikationsdatum: 2022-01-14
    Beschreibung: The working group was held in remotely, from 6th to 10th Sept 2021. The meeting was attended by 20 experts in total, including two STECF members and two JRC experts along with one observer. The objective of the Mediterranean Methodology EWG 21-11 was to carry out assessments and provide draft advice for stocks identified in the ToR supplied by STECF. An initial plenary session commenced at 09:00 on the first day. The ToRs were discussed and examined in detail. Stocks were allocated to participants based on expertise. An ad-hoc ftp repository was created to share documents, data and scripts and prepare the report. The stock assessments were evaluated by all participants. Following EWG 21-02 data preparation EWG data was available for assessments much earlier in the meeting, in all cases by Tuesday night. For stocks with assessment issues some sensitivity test were possible, but for DWRS in GSA 1,5,6,7 exploratory assessments were not fully concluded given time limitations. Over the week plenary sessions were held each day to monitor progress and share results. The overall conclusions for each stock were discussed and finalized in plenary on the Friday. After the main meeting it became apparent that the selected assessment for red and blue shrimp in GSA 1 had issues with the form of the model, the model was re-examined and details circulated to all EWG participants. A short 45minute plenary was held on Tuesday 21st and a revised assessment was agreed. This report contains this final assessment and advice based on it.
    Beschreibung: European Commission
    Beschreibung: European Union, Joint Research Centre
    Beschreibung: Published
    Beschreibung: Refereed
    Schlagwort(e): Fish stock assessment ; Fisheries biology ; Fisheries economics ; Fisheries governance ; Fishing gear technology ; Management advice ; Modelling ; MSY
    Repository-Name: AquaDocs
    Materialart: Report
    Format: 678pp
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    ARTIKEL (OA)
  • 4
    facet.materialart.
    Unbekannt
    2019 Stock Assessments part 2: European fisheries for demersal species in the Adriatic Sea (STECF-19- 16). (2022)
    Publications Office of the European Union | Luxembourg
    Details
    Publikationsdatum: 2022-01-13
    Beschreibung: Commission Decision of 25 February 2016 setting up a Scientific, Technical and Economic Committee for Fisheries, C(2016) 1084, OJ C 74, 26.2.2016, p. 4–10. The Commission may consult the group on any matter relating to marine and fisheries biology, fishing gear technology, fisheries economics, fisheries governance, ecosystem effects of fisheries, aquaculture or similar disciplines. . This report is from STECF Expert Working Group 19-16: 2019 stock assessments of demersal stocks in the Adriatic Sea from the meeting in Rome Italy from 14th to 20th October 2019. A total of seven fish species were evaluated for GSA 17, 18 and 19. The EWG reports age based assessments and short term forecasts for all seven stocks. The content of the report gives the STECF terms of reference, the basis of the evaluations and advice, summaries of state of stock and advised based on either the MSY approach for assessed. The report contains the full stock assessment reports for the seven assessments, and three exploratory assessments for deep-water rose shrimp for each GSA separately. Advice for deep-water rose shrimp is based on the combined stock, the report also contains the STECF observations and conclusions on the assessment report. These conclusions come from the STECF Plenary meeting November 2019.
    Beschreibung: European Commission
    Beschreibung: European Union, Joint Research Centre
    Beschreibung: Published
    Beschreibung: Refereed
    Schlagwort(e): Fish stock assessment ; Modelling ; Management advice ; Fisheries biology ; Fishing gear technology ; Fisheries economics ; Fisheries governance ; Ecosystem effects of fisheries ; MSY
    Repository-Name: AquaDocs
    Materialart: Report
    Format: 380pp.
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    ARTIKEL (OA)
  • 5
    facet.materialart.
    Unbekannt
    Stock Assessments: demersal stocks in the western Mediterranean Sea (STECF-20-09). (2022)
    Publications Office of the European Union | Luxembourg
    Details
    Publikationsdatum: 2022-01-13
    Beschreibung: The working group was held in remotely, from 7th to 18th Sept 2020. The meeting was attended by 21 experts in total, including three STECF members and four JRC experts. The EWG had two observers who attended part time. The objective of the Mediterranean Methodology EWG 20-09 was to carry out assessments and provide draft advice for stocks identified in the ToR supplied by STECF. An initial plenary session commenced at 09:30 on the first day. The ToRs were discussed and examined in detail. Stocks were allocated to participants based on expertise. An ftp repository was created ad-hoc to share documents, data and scripts and prepare the report. The stock assessments were evaluated by the by all participants. Most of the work was concluded by Tuesday 15 Sept, after 7 full days of work, and some additional work at the weekend. However, two stocks remained to be completed, this extra work was carried out largely by two participant with support from small subgroups. The WG met for a final session on Friday 18 Sept. to conclude the work on one stock. Following extensive trials the last stock could not be assessed with an analytic age based assessment and advice was based on the MEDITS index. Over the first 7 working days plenary sessions were held each day to monitor progress and share results. The overall conclusions for each stock were discussed and finalized in plenary on the Tuesday, though the last assessment was finalised on the following Friday, the last day of the meeting.
    Beschreibung: European Commission
    Beschreibung: European Union, Joint Research Centre
    Beschreibung: Published
    Beschreibung: Refereed
    Schlagwort(e): Stock assessment ; Management advice ; MSY ; Fisheries biology ; Fisheries economics ; Fisheries governance ; Fishing gear technology
    Repository-Name: AquaDocs
    Materialart: Report
    Format: 707pp.
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    ARTIKEL (OA)
  • 6
    facet.materialart.
    Unbekannt
    Workshop on ICES Reference Points (WKREF2) (2022)
    International Council for the Exploration of the Sea | Copenhagen, Denmark
    Details
    Publikationsdatum: 2022-09-14
    Beschreibung: The ICES Workshop on ICES reference points (WKREF2) was tasked review the WKREF1 report and based on the outcome develop updated guidelines for the ICES reference points system and recommendations for ACOM consideration. The WKREF1 report has suggested 5 key recom- mendations to simplify and harmonise the ICES reference points framework representing a ma- jor change to the current guidelines. At WKREF2, we detailed discussions and four key concerns were raised about the proposed approach. The first related to the simplification of rules to define Blim. Around two thirds of category 1 stocks would end up as WKREF1 “Blim Type 2” where Blim would be set as a fraction of B0. The Allee effect or “depensation” maybe more important than previously thought and should be furthered explored for ICES stocks since it has important consequences for Blim. A number of challenges and issues around defining Blim using the current guidelines were documented. Some suggestions on improvement criteria were discussed including using classifiers to define spas- modic stocks and using change point algorithms to address non-stationary productivity regimes. However, further work is need to make these approaches operational and there was no consen- sus that the WKREF1 Blim types should replace the current guidelines. WKREF1 recommended that the FMSY proxy should be based on a biological proxies and should be less than the deterministic FMSY. It was pointed out that the stochastic FMSY estimated in EqSim for example, is lower than the deterministic FMSY and that the current guidelines ensure that the FMSY should not pose a more than 5% risk to Blim. A large amount of work described in WD 1 was carried out to develop an MSE framework to consistency and robustness test a candidate refer- ence point system for North East Atlantic stocks. However, WKREF2 recommended that further work needs to be carried out to condition and test the simulation framework before the conclu- sions could be adopted by ICES and incorporated into the guidelines. A number of considerations for defining MSY related reference points were discussed including using model validation and prediction skill to ensure that ICES provide robust and credible ad- vice. There is evidence that density dependence (DD) is important in the majority of ICES stocks (68% in recruitment and 54% in growth). The correct prediction of the shape and strength of density-dependence in productivity is key to predicting future stock development and providing the best possible long-term fisheries management advice. A suggested approach to use surplus production models (SPMs) to account for DD in FMSY was suggested and discussed but there was no consensus on whether that approach was appropriate. There was consensus that the FECO approach as a means of adapting target fishing mortality to medium-term changes in productiv- ity should be included in the guidelines subject to a benchmark and ACOM approval. While WKREF1 and 2 focused mainly on Category 1 stocks ToR c) called for a “simplified and harmonised set of guidelines for estimating MSY and precautionary reference points applicable in the advice framework across various ICES stock categories.” Ideally the ICES assessment cat- egories should provide equivalent risk across all stocks. This issue was discussed but no recom- mendations emerged. There was no consensus a revised reference point framework was proposed at WKREF2. How- ever, it was agreed that it should be presented here for further discussion at ACOM and other fora. The key feature of the suggested approach is that the stock status evaluation is treated in- dependent of the Advice Rule (AR). The main feature of the system is that the biomass trigger is not linked to a stock status evaluation, it is linked to the expected biomass when fishing at the target fishing mortality, in contrast to the current ICES approach. It also entailed that FMSY would also become an upper limit of fishing mortality and that the advised fishing mortality would be set at or lower than that level. WKREF2 did not discuss what to do in situations where SSB〈 Blim or alternative forms of HCR for the advice rule. Building community understanding and con- sensus around simplified and harmonised guidelines has yet to be achieved. A further workshop WKREF3 will be required to achieve that aim. The report includes 6 recommendations for ACOM consideration.
    Beschreibung: ICES
    Beschreibung: The main objective of the workshop was to review the recommendations of WKREF1 and con- sider how these might feed into a new reference points framework and guidelines for ICES. There were a number of presentations on the wider issues of best practice for reference points, the Allee effect, density dependence and the WKIRISH approach. The starting point was to try and develop a set of simplified and harmonised guidelines based on the WKREF1 report rather than evolving the current guidelines to include the WKREF1 conclusions. A key aspect of the meeting was to allow for discussions in order to build a shared understanding of the strengths and weakness of the current framework and of the new framework emerging from WKREF1.
    Beschreibung: Published
    Beschreibung: Non Refereed
    Schlagwort(e): ICES ; Reference points ; Management advice ; Fisheries ; Fishery management reference points
    Repository-Name: AquaDocs
    Materialart: Report
    Format: 103pp
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    ARTIKEL (OA)
  • 7
    Digitale Medien
    Digitale Medien
    Changes in the responsiveness of the maxillary styloconic sensilla of Spodoptera littoralis to inositol and sinigrin correlate with feeding behaviour during the final larval stadium
    Amsterdam : Elsevier
    Journal of Insect Physiology 37 (1991), S. 261-268 
    Details
    ISSN: 0022-1910
    Schlagwort(e): Spodoptera littorali ; electrophysiology ; feeding behaviour ; inositol ; neural variability ; sinigrin
    Quelle: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Thema: Biologie
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1016/0022-1910(91)90060-D
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 8
    Digitale Medien
    Digitale Medien
    A behavioural and electrophysiological study of the role of tarsal chemoreceptors in feeding by adults of Spodoptera, Heliothis virescens and Helicoverpa armigera
    Amsterdam : Elsevier
    Journal of Insect Physiology 36 (1990), S. 743-745+747-756 
    Details
    ISSN: 0022-1910
    Schlagwort(e): Helicoverpa armigera ; Heliothis virescens ; Spodoptera frugiperda ; Spodoptera littoralis ; adult feeding ; amino acids ; azadirachtin ; behaviour ; electrophysiology ; neural interactions ; plant extracts ; sugars ; tarsal chemoreceptors
    Quelle: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Thema: Biologie
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1016/0022-1910(90)90048-K
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 9
    Digitale Medien
    Digitale Medien
    Azadirachtin:-advances in understanding its activity as an antifeedant (1996)
    Springer
    Entomologia experimentalis et applicata 80 (1996), S. 23-26 
    Details
    ISSN: 1570-7458
    Schlagwort(e): allelochemicals ; secondary plant metabolites ; feeding ; Spodoptera littoralis ; Schistocerca gregaria ; Locusta migratoria ; electrophysiology ; contact chemoreceptors
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00194716
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
  • 10
    Digitale Medien
    Digitale Medien
    Behavioural and neurophysiological responses ofSpodoptera littoralis to azadirachtin and a range of synthetic analogues (1995)
    Springer
    Entomologia experimentalis et applicata 77 (1995), S. 69-80 
    Details
    ISSN: 1570-7458
    Schlagwort(e): azadirachtin ; azadirachtin analogues ; Spodoptera littoralis ; antifeedant ; behaviour ; electrophysiology
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie
    Notizen: Abstract The antifeedant activity of azadirachtin and 56 azadirachtin analogues, including 22,23-dihydroazalirachtin, against larvae ofSpodoptera littoralis was investigated using behavioural and electrophysiological bioassays. None of the analogues was as active as azadirachtin, although many showed significant antifeedant activity at high concentrations. The majority of the analogues stimulated a dose-dependent response from a neurone in the medial styloconic maxillary sensilla which correlated with the behavioural activity. Methylation of the hydroxy substitutions on the azadirachtin molecule usually resulted in a decrease in antifeedant activity, as did the addition of bulky groups to the dihydrofuran ring.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF02383020
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    Artikel (Nationallizenzen)
    Volltext
Schließen ⊗
Diese Webseite nutzt Cookies und das Analyse-Tool Matomo. Weitere Informationen finden Sie hier...