Results 21 to 30 of about 427,176 (253)

Presence of tiger shrimp Penaeus monodon Fabricius, 1798 (Penaeidae) in the Egyptian commercial shrimp catch, Alexandria, Egypt

open access: yesEgyptian Journal of Aquatic Research, 2019
Two incidences of the appearance of the giant tiger shrimp in the Egyptian commercial catch were recorded from Abou Qir Bay, on the East of Alexandria City, Egypt.
Amal Ragae Khafage   +2 more
doaj   +1 more source

Economic value of small-scale sea cucumber fisheries under two contrasting management regimes

open access: yesEcology and Society, 2020
Small-scale fisheries supplying tropical sea cucumbers to Asian markets frequently overharvest stocks, incurring unknown loss of economic value. An indication of such value loss can provide economic incentives for better conservation and management ...
Maria Eggertsen   +4 more
doaj   +1 more source

Parasites, pathogens and commensals in the “low-impact” non-native amphipod host Gammarus roeselii

open access: yesParasites & Vectors, 2017
Background Whilst vastly understudied, pathogens of non-native species (NNS) are increasingly recognised as important threats to native wildlife. This study builds upon recent recommendations for improved screening for pathogens in NNS by focusing on ...
Jamie Bojko   +6 more
doaj   +1 more source

Reproduction and community structure of fish from winter catch sites from industrial shrimp bycatch from the northeast and southeast Mexican Pacific [PDF]

open access: yesPeerJ, 2018
The shrimp fishery is one of the most important fisheries in the world, although the low selectivity from trawling nets has led to the capture of a large number of non-target species. Shrimp-bycatch species include a large number of fish and invertebrate
Jorge de Jesus Tirado-Ibarra   +6 more
doaj   +2 more sources

Distribution of Nereilinum murmanicum (Annelida, Siboglinidae) in the Barents Sea in the Context of Its Oil and Gas Potential

open access: yesJournal of Marine Science and Engineering, 2021
Frenulate siboglinids are a characteristic component of communities living in various reducing environments, including sites with hydrocarbon seeps. High concentrations of hydrocarbons in the sediments of the Arctic basin seas, including the Barents Sea,
Nadezda Karaseva   +7 more
doaj   +1 more source

eDNA metabarcoding of small plankton samples to detect fish larvae and their preys from Atlantic and Pacific waters

open access: yesScientific Reports, 2021
Zooplankton community inventories are the basis of fisheries management for containing fish larvae and their preys; however, the visual identification of early-stage larvae (the “missing biomass”) is difficult and laborious.
Eva Garcia-Vazquez   +3 more
doaj   +1 more source

A Phylogenetic Re-Evaluation of the Stenakrine Opecoelids (Trematoda, Digenea: Opecoeloidea) with Some Taxonomic Novelties

open access: yesDiversity, 2022
The Opecoeloidea is a large group of xiphidiate digeneans parasitizing marine and freshwater fishes. According to the current taxonomic model, this superfamily contains only one family with numerous subfamilies.
Sergey G. Sokolov   +3 more
doaj   +1 more source

Phylogenetic Evidence for the Lissorchiid Concept of the Genus Anarhichotrema Shimazu, 1973 (Trematoda, Digenea)

open access: yesDiversity, 2022
Anarhichotrema Shimazu, 1973 is a monotypic digenean genus, with the type- and only species, Anarhichotrema ochotense Shimazu, 1973, known to infect North Pacific fishes. This genus was originally described as a member of the Lissorchiidae (Monorchioidea)
Sergey G. Sokolov   +2 more
doaj   +1 more source

Ecologically sustainable but unjust? Negotiating equity and authority in common-pool marine resource management

open access: yesEcology and Society, 2014
Under appropriate conditions, community-based fisheries management can support sound resource stewardship, with positive social and environmental outcomes. Evaluating indigenous peoples' involvement in commercial sea cucumber and geoduck fisheries on the
Sarah C. Klain   +2 more
doaj   +1 more source

Ionic Gating of Liquid‐Crystal‐Like Pteridine Assemblies Enables Tunable Light Scattering

open access: yesAdvanced Materials, EarlyView.
Tunable optical properties emerge through developmentally regulated ionic gating, which transforms disordered, ultraviolet (UV)‐absorbing organelles into concentrically ordered, liquid‐crystal‐like light scatterers. By integrating analyses of pteridine composition, potassium‐dependent assembly, hierarchical ultrastructure, and optical behavior, the ...
Sourabh Bera   +22 more
wiley   +1 more source

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