Results 61 to 70 of about 4,579 (195)

Multi‐Seasonal eDNA Metabarcoding Highlights a Resurgence in Fish Diversity Across a Severely Impacted Estuarine Ecosystem

open access: yesAquaculture, Fish and Fisheries, Volume 6, Issue 2, April 2026.
ABSTRACT Aquatic ecosystems have been in an alarming state of decline for decades. In particular, estuarine ecosystems have experienced long‐term declines in fish diversity due to factors such as habitat degradation, pollution and altered hydrology. Monitoring these systems is often limited by the difficulty and cost of conventional survey methods.
Jake M. Jackman   +7 more
wiley   +1 more source

Structure and Trophic Niches in Mobile Epifauna Assemblages Associated With Seaweeds and Habitats of Syngnathid Fishes in Cíes Archipelago (Atlantic Islands Marine National Park, North West Iberia)

open access: yesFrontiers in Marine Science, 2021
Syngnathids are vulnerable fishes closely associated with seaweeds and seagrass, which provide shelter and food resources. Even though most syngnathids commonly feed on small crustaceans, the feeding regimes may differ depending on the species and prey ...
Cristina Piñeiro-Corbeira   +9 more
doaj   +1 more source

Spermatogenesis and sperm structure in the black-striped pipefish Syngnathus abaster (Teleostei, Syngnathidae) = Spermatogenesi e struttura degli spermatozoi in Syngnathus abaster (Teleostei, Synghathidae) [PDF]

open access: yes, 2010
The gonads of adult males of the black-striped pipejish Syngnathus abaster were observed during the reproductive season to describe mature sperm both quantitativel/y and qualitatively.
Addis, Alberto   +3 more
core  

A Dangerous Prey Fish? Brachyspira‐Rich Gastrointestinal Microbiota in Pompano Dolphinfish From Neritic and Deep Waters of the South China Sea

open access: yesEcology and Evolution, Volume 16, Issue 3, March 2026.
This study reveals an unexpectedly simplified, Brachyspira‐dominated gastrointestinal microbiota in pompano dolphinfish from both neritic and deep‐sea habitats of the South China Sea. Environmental DNA and functional analyses suggest these fish may acquire potential pathogens in anthropogenically influenced coastal waters and transport them offshore ...
Wentao Lu   +12 more
wiley   +1 more source

Expanding Horizons in Phage Therapy: Addressing Antibiotic Resistance in Aquaculture

open access: yesAquaculture, Fish and Fisheries, Volume 6, Issue 1, February 2026.
ABSTRACT Aquaculture has emerged as a cornerstone of global food security, yet its rapid intensification has precipitated widespread bacterial disease outbreaks and escalating antimicrobial resistance (AMR). This review critically examines the limitations of conventional antibiotic use in aquaculture, highlighting regulatory inconsistencies ...
Anisah Azhar   +3 more
wiley   +1 more source

Polygynandry and sexual size dimorphism in the sea spider Ammothea hilgendorfi (Pycnogonida: Ammotheidae), a marine arthropod with brood-carrying males. [PDF]

open access: yes, 2008
Species that exhibit uniparental postzygotic investment by males are potentially good systems for investigating the interplay of sexual selection, parental care and mating systems.
Andersson   +74 more
core   +1 more source

Pelagic Larval Duration and Population Structure of a Widely Distributed Amphidromous Fish in the Indo‐Pacific Region

open access: yesEcology of Freshwater Fish, Volume 35, Issue 1, January 2026.
ABSTRACT Freshwater habitats in the Indo‐Pacific Islands are colonised by amphidromous fish, which undergo a marine larval phase while the rest of the life cycle takes place in the riverine habitat. These fish are mainly represented by Gobiiformes. Among these, Stenogobius genivittatus (Valenciennes, 1837) is widely distributed in the Indo‐Pacific ...
Romain Causse   +8 more
wiley   +1 more source

Marine ornamental species from European waters: a valuable overlooked resource or a future threat for the conservation of marine ecosystems? [PDF]

open access: yes, 2006
The worldwide growth of the marine aquarium market has contributed to the degradation of coral reef ecosystems. Enforcing the legislation on importing ornamental species has led some European traders to concentrate on local species. Portugal is used as a
Calado, Ricardo
core   +3 more sources

Clustered Microsatellite Mutations in the Pipefish Syngnathus typhle [PDF]

open access: yesGenetics, 1999
AbstractClustered mutations are copies of a mutant allele that enter a population's gene pool together due to replication from a premeiotic germline mutation and distribution to multiple successful gametes of an individual. Although the phenomenon has been studied in Drosophila and noted in a few other species, the topic has received scant attention ...
Jones, Adam G   +3 more
openaire   +4 more sources

Natal philopatry, dispersal and age of first breeding in relation to size and sex of Arctic Terns (Sterna paradisaea)

open access: yesIbis, Volume 168, Issue 1, Page 79-94, January 2026.
Many seabird species are in decline and population demographic models are important for revealing the causes and developing conservation strategies. Natal and breeding dispersal are key parameters of such models but can be challenging to estimate and may vary by sex.
Chris P.F. Redfern   +2 more
wiley   +1 more source

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