Results 1 to 10 of about 34,455 (262)

Using otoliths for fish stock discrimination: status and challenges [PDF]

open access: yesActa Ichthyologica et Piscatoria, 2021
Otoliths are calcified structures and the information contained within their chemistry or shape can be used to infer life history events, migration patterns, and stock structure of a fish population.
Aafaq Nazir, Mohammad Afzal Khan
doaj   +5 more sources

Parasites as Biological Tags for Stock Discrimination of Beaked Redfish (Sebastes mentella): Parasite Infra-Communities vs. Limited Resolution of Cytochrome Markers. [PDF]

open access: yesPLoS ONE, 2016
The use of parasites as biological tags for discrimination of fish stocks has become a commonly used approach in fisheries management. Metazoan parasite community analysis and anisakid nematode population genetics based on a mitochondrial cytochrome ...
Regina Klapper   +4 more
doaj   +2 more sources

Discrimination of Schizothorax grahami (Regan, 1904) Stocks Based on Otolith Morphology

open access: yesFishes, 2023
Otoliths grow throughout a fish’s life and are important for identifying fish stocks and fish age. This study aims to differentiate different stocks of Schizothorax grahami (Regan, 1904) in the Chishui River, an upper reach of the Yangtze River, by ...
Yang Zhou   +7 more
doaj   +2 more sources

Gill raker counting for approximating the ratio of river- and sea-spawning whitefish, Coregonus lavaretus (Actinopterygii: Salmoniformes: Salmonidae) in the Gulf of Bothnia, Baltic Sea [PDF]

open access: yesActa Ichthyologica et Piscatoria, 2015
Background. The ability to distinguish between stocks in mixed fisheries is a prerequisite for a sustainable fisheries management. In the Gulf of Bothnia the relative contribution of endangered river-spawning and sea-spawning whitefish, Coregonus ...
M. Himberg   +6 more
doaj   +3 more sources

Form identification of purple flying squid (Sthenoteuthis oualaniensis) based on gladius morphology

open access: yesFrontiers in Marine Science, 2022
Stock structure information is an important part of bases for understanding the dynamics of cephalopod populations. Purpleback flying squid Sthenoteuthis oualaniensis is an abundant and highly productive species in tropical and subtropical waters of the ...
Kai Zhu   +11 more
doaj   +1 more source

Stock discrimination of the bogue, Boops boops (Actinopterygii: Perciformes: Sparidae), from two Tunisian marine stations using the otolith shape [PDF]

open access: yesActa Ichthyologica et Piscatoria, 2020
Background. The bogue, Boops boops (Linnaeus, 1758), is the most common sparid fish in the Tunisian waters. Despite its economic importance, the stock discrimination of this species is poorly understood up to date.
M. Ben Labidi   +5 more
doaj   +3 more sources

Multivariate morphometric investigation to delineate species diversity and stock structure of mud crab Scylla sp. along the coastal regions of Bangladesh

open access: yesAquaculture and Fisheries, 2021
Despite the importance of mud crab species (genus Scylla) in both coastal aquaculture and artisanal fisheries, knowledge of the species diversity and stock structure of mud crab population for their sustainable management across the coastal region of ...
Md Asaduzzaman   +4 more
doaj   +1 more source

Otolith chemical composition as a useful tool for sciaenid stock discrimination in the south-western Atlantic

open access: yesScientia Marina, 2006
Striped weakfish (Cynoscion guatucupa) and whitemouth croaker (Micropogonias furnieri) are important commercial and recreational species found in abundance along the South American Atlantic coast.
Alejandra V. Volpedo   +1 more
doaj   +1 more source

The Enforcement of Non-Discrimination Law and Sexual Minorities’ Rights in the EU: The Cases of Hungary and Poland

open access: yesPrzegląd Prawniczy Uniwersytetu im. Adama Mickiewicza, 2022
The principle of equality and the prohibition of discrimination on grounds of sexual orientation are enshrined in the EU Treaties. A strong baseline is also laid down in secondary EU legislation.
Izabela Jędrzejowska-Schiffauer   +1 more
doaj   +1 more source

Assessing population structure of European Anchovy (Engraulis encrasicolus) in the Central Mediterranean by means of traditional morphometry

open access: yesAdvances in Oceanography and Limnology, 2011
For the first time the structure of the anchovy stock was investigated in the Strait of Sicily: sampling locations were in Sicily, in Tunisia and in the Adriatic Sea.
A. Traina   +7 more
doaj   +1 more source

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