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  • stock data  (7)
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  • 1
    Electronic Resource
    Electronic Resource
    Accumulation of fluorescent age pigments in embryos and larvae of pike,Esox lucius (Esocidae, Teleostei) at different incubation temperatures (1988)
    Springer
    Environmental biology of fishes 22 (1988), S. 91-99 
    Details
    ISSN: 1573-5133
    Keywords: Lipofuscin ; Temperature effects ; Developmental stages ; Marker substances ; Fish
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Synopsis Accumulation of fluorescent age pigments (FAP) was measured in pike,Esox lucius, during embryogenesis and larval development at different temperatures. Chloroform-as well as methanol-soluble age pigments from eggs and larvae were quantified. Chloroform-FAP accumulated linearly with embryonic and larval development. After yolksack resorption, FAP concentrations reached a maximum and declined thereafter. Chloroform-FAP accumulation was not temperature dependent. Similar patterns of methanol-soluble pigment accumulation were found but accumulation of methanol-FAP was, in contrast, significantly temperature dependent. As a result, methanol-FAP concentrations increased in direct proportion to the rising incubation temperature, but the maximum methanol-FAP fluorescence was found at 15°C and not at 180°C.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00001540
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    Paper (German National Licenses)
    Fulltext
  • 2
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    Beurteilung der Fischbestände in Nordatlantik, Nord- und Ostsee. Einschätzung durch den Internationalen Rat für Meeresforschung vom Mai 1999 (2021)
    In:  cornelius.hammer@vti.bund.de | http://aquaticcommons.org/id/eprint/3291 | 1240 | 2012-11-10 17:39:18 | 3291 | Bundesforschungsanstalt für Fischerei
    Details
    Publication Date: 2021-06-27
    Description: The spring session of ACFM gave advice for a number of stocks in the North Atlantic, North Sea and Baltic. The situation is given here for stocks of higher importancefor the German fishery. These are: Blue Whiting: A short term upwards trend is observed, which, however, will not last very long, due to too intense fishing. Cod in Kattegat: Stock is outside safe biological limits. No immediate recovery in sight. Cod in Sub. Div. 22– 24 (Baltic): Stock is outside safe biological limits. Due to weak recruitment not immediate recovery in prospect. Greenland Halibut: Stock outside safe biological limits and still in downward trend. Herring (atlanto-scandian, Norw. spring spawner): Stock inside safe biological limits, weak recruitment of the past 5 years will, however, lead to a reduction of the biomass. Redfish: Generally decreasing tendency observed, a reduction of the fishery is recommended.
    Description: Johann Heinrich von Thünen-Institute, Federal Research Institute for Rural Areas, Forestry and Fisheries began publishing the Informationen aus der Fischereiforschung = Information on Fishery research in 2010.
    Keywords: Management ; Fisheries ; fisheries management ; stock management ; scientific advice ; sustainable fisheries ; stock data ; North Atlantic ; North Sea ; Baltic Sea
    Repository Name: AquaDocs
    Type: article , FALSE
    Format: application/pdf
    Format: application/pdf
    Format: 9-16
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  • 3
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    Lage und Entwicklung der Fischereiressources in Hinblick auf deutsche Fischereiinteressen (2021)
    In:  cornelius.hammer@vti.bund.de | http://aquaticcommons.org/id/eprint/3321 | 1240 | 2020-08-23 06:06:55 | 3321 | Bundesforschungsanstalt für Fischerei
    Details
    Publication Date: 2021-06-27
    Description: The northern European fish stocks are assessed annually by ICES working groups. The results are evaluated biannually in two meetings of the Advisory Committee for Fisheries Management (ACFM) at ICES. Based on the working group assessments, ACFM formulates an advice for fisheries management and suggests a total allowable catch (TAC) which is based strictly on biological grounds. The summaries of the state of some selected stocks which are given here, are derived from the ACFM advice, formulated during the most recent May 1998 meeting. For many of the fish stocks the precautionary approach is still in the process of implementation, and only for some of them the management and target reference points have been fully defined.
    Description: Johann Heinrich von Thünen-Institute, Federal Research Institute for Rural Areas, Forestry and Fisheries began publishing the Informationen aus der Fischereiforschung = Information on Fishery research in 2010.
    Keywords: Management ; Fisheries ; fisheries management ; assessment ; scientific advice ; recruitment ; stock data
    Repository Name: AquaDocs
    Type: article , FALSE
    Format: application/pdf
    Format: application/pdf
    Format: 73-81
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  • 4
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    Lage und Entwicklung der Fischereiressourcen im Hinblick auf deutsche Fischereiinteressen: Neuste Bestandsabschätzung des ACFM (2021)
    In:  cornelius.hammer@vti.bund.de | http://aquaticcommons.org/id/eprint/3337 | 1240 | 2012-11-10 17:56:31 | 3337 | Bundesforschungsanstalt für Fischerei
    Details
    Publication Date: 2021-06-27
    Description: The North European fish stocks are assessed annually by ICES working groups. The results are evaluated biannually in two meetings of the Advisory Committee for Fisheries Management (ACFM) at ICES. Based on the working group assessments, ACFM formulates an advice for fisheries management and suggests a total allowable catch (TAC) which is based strictly on biological grounds. The summaries of the state of some selected stocks which are given here, are derived from the ACFM advice, formulated during the most recent Oktober 1998 meeting. For many of the fish stocks the precautionary approach is still in the process of implementation, however for most of them the management and target reference points have been fully defined by now.
    Description: Johann Heinrich von Thünen-Institute, Federal Research Institute for Rural Areas, Forestry and Fisheries began publishing the Informationen aus der Fischereiforschung = Information on Fishery research in 2010.
    Keywords: Management ; Fisheries ; sustainable fisheries ; fisheries management ; stock data
    Repository Name: AquaDocs
    Type: article , FALSE
    Format: application/pdf
    Format: application/pdf
    Format: 147-159
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  • 5
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    Die Fischereiressourcen im Hinblick auf deutsche Interessen (2021)
    In:  cornelius.hammer@vti.bund.de | http://aquaticcommons.org/id/eprint/3235 | 1240 | 2012-11-10 14:38:07 | 3235 | Bundesforschungsanstalt für Fischerei
    Details
    Publication Date: 2021-06-26
    Description: The North-European fish stocks are assessed annually by ICES working groups. The results are evaluated twice annually in two meetings of the Advisory Committee for Fisheries Management (ACFM) at ICES. Based on the working group assessments, ACFM formulates an advice for the fisheries management and suggests a total allowable catch (TAC) which is based strictly on biological grounds. The summaries of the state of some selected stocks which are given here, are derived from the ACFM advice, formulated during the most recent October 1999 meeting. For many of the fish stocks the precautionary approach has been implemented now, and for most of them the target reference points have been defined. As a result, most of the stocks are outside safe biological limits or are harvested in disaccordance with the precautionary approach. Only 10 stocks of those evaluated during this autumn meeting were found to be within safe biological limits.
    Description: Johann Heinrich von Thünen-Institute, Federal Research Institute for Rural Areas, Forestry and Fisheries began publishing the Informationen aus der Fischereiforschung = Information Fishery research in 2010.
    Keywords: Management ; Fisheries ; fisheries management ; stock data ; scientific advice ; Fischereimanagement ; Bestandsdaten ; wissenschaftliche Emfpehlungen
    Repository Name: AquaDocs
    Type: article , FALSE
    Format: application/pdf
    Format: application/pdf
    Format: 3-18
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  • 6
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    Die Entwicklung wichtiger Fischbestände in der Nordsee und im Nordatlantik. Ergebnisse der Herbstsitzung des Advisory Committees for Fishery Management des internationalen Rates für Meeresforschung (2021)
    In:  cornelius.hammer@vti.bund.de | http://aquaticcommons.org/id/eprint/3805 | 1240 | 2012-11-10 18:16:14 | 3805 | Bundesforschungsanstalt für Fischerei
    Details
    Publication Date: 2021-06-25
    Description: The October meeting of the ACFM of ICES gave advice for a number of North-Atlantic fish stocks. The results of the most important stocks are given here from the perspective of German fishery management. The are chiefly North Sea plaice and sole, for which a reduction of 25 % of the fishing mortality (F) is recommended for 1998, North Sea saithe (minus 20 % in F), while North Sea cod is in the process of recovery and North Sea haddock is inside safe biological limits. The mackerel stock of the North Sea has not yet recovered, while the western mackerel stock as an entity has stabilised at a level of about 2.3 million t.
    Description: Johann Heinrich von Thünen-Institute, Federal Research Institute for Rural Areas, Forestry and Fisheries began publishing the Informationen aus der Fischereiforschung = Information on Fishery research in 2010.
    Keywords: Fisheries ; fisheries management ; stock data ; scientific advice ; sustainable fisheries
    Repository Name: AquaDocs
    Type: article , FALSE
    Format: application/pdf
    Format: application/pdf
    Format: 140-148
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  • 7
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    Deutscher Beitrag zum internationalen Makrelen(Scomber scombrus) und Stöcker- (Trachurus trachurus) Eier-Survey (2021)
    In:  cornelius.hammer@vti.bund.de | http://aquaticcommons.org/id/eprint/4189 | 1240 | 2012-11-10 18:46:11 | 4189 | Bundesforschungsanstalt für Fischerei
    Details
    Publication Date: 2021-06-30
    Description: Based on the results from egg and larvae surveys, mackerel and horse mackerel are thought to form three more or less distinct stocks each in the North Sea and in the waters west of the British Isles. These are firstly the southernstocks in the southern part of the English Channel, Celtic Sea and Bay of Biscay, secondly the North Sea and finally the western stocks of both species, loeated between the Shetlands and southern Norway. It is argued here that in view of the high mobility and the extended seasonal migrations of both species a c1ear separation of the stocks can hardly be maintained. In this context the results of the 1995 mackerel and horse mackerel egg survey to the southern spawning location is presented.
    Description: Johann Heinrich von Thünen-Institute, Federal Research Institute for Rural Areas, Forestry and Fisheries began publishing the Informationen aus der Fischereiforschung = Information on Fishery research in 2010
    Keywords: Fisheries ; stock management ; recruitment ; stock data ; eggs ; spawning areas ; stock development
    Repository Name: AquaDocs
    Type: article , FALSE
    Format: application/pdf
    Format: application/pdf
    Format: 61-64
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  • 8
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    Deutsche und internationale Bestandsuntersuchungen an Heringen mit hydroakustischen Methoden (2021)
    In:  sf@vti.bund.de | http://aquaticcommons.org/id/eprint/4212 | 1240 | 2012-11-10 18:45:28 | 4212 | Bundesforschungsanstalt für Fischerei
    Details
    Publication Date: 2021-06-30
    Description: The international hydroacoustic herring survey in the North Sea is carried out since the early eighties with Dutch, Scottish, Danish und Norwegian contribution. Since 1994 Germany also participates in this survey on a regular basis and has taken over a sector in the easter part between the Dogger Bank and the Danish coast. This area is known for the abundance of chiefly juvenile herring and sprat. During the 1995 cruise some 420000 t of herring were found here, most of them being juveniles of age group I. Analyses of plankton hauls showed that planktonic echos were not caused by juvenile herring, instead the echos were apparently produced by small pelagic gastropodes of the genus Spiratella.
    Description: Johann Heinrich von Thünen-Institut, Federal Research Institute for Rural Areas, Forestry and Fisheries began publishing the Informationen aus der Fischereiforschung = Information on Fishery research in 2010
    Keywords: Fisheries ; stock data ; international cooperation
    Repository Name: AquaDocs
    Type: article , FALSE
    Format: application/pdf
    Format: application/pdf
    Format: 166-169
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