Results 41 to 50 of about 7,780 (262)

Supplementing dietary selenium nano-particles increased growth, antioxidant capacity and immune-related genes transcription in Pacific whiteleg shrimp (Penaeus vannamei) juveniles

open access: yesAquaculture Reports, 2022
An eight-week nutritional study was carried out to examine the effects of dietary selenium nanoparticles (Se-N) on performance in whiteleg shrimp (Penaeus vannamei) juveniles (1.55 ± 0.04 g, means ± standard deviation). A basal diet (∼ 38 % crude protein,
Aliakbar Ghaffarizadeh   +4 more
doaj   +1 more source

Trophic Niche Overlap Between the Invasive Crab Rhithropanopeus harrisii (Gould, 1841) and Native Crab Species in the Southwest Atlantic Coast

open access: yesMarine Ecology, Volume 47, Issue 3, May/June 2026.
ABSTRACT The introduction of exotic species is one of the main drivers of biodiversity loss in aquatic ecosystems. The Harris mud crab Rhithropanopeus harrisii, native to the Atlantic coast of North America, was recorded in the Patos Lagoon estuary (southern Brazil) in the 1980s, likely introduced via ballast water. However, the effects of this invader
Renan C. Machado   +2 more
wiley   +1 more source

Illustrated key to Penaeoid shrimps of commerce in the Americas [PDF]

open access: yes, 1988
The commercially important species of penaeoid shrimps comprise 4 families, 12 genera, and 37 species in the Americas, This key is supported by 49 figures including lateral views of whole shrimps in 10 of the 12 genera and detailed figures of male ...
Farfante, Isabel Perez
core  

Ovarian development of Xiphopenaeus kroyeri (Crustacea: Penaeidae) from Espírito Santo, southeastern Brazil

open access: yesBrazilian Journal of Biology, 2022
Abstract This study aimed to describe and characterize the stages of gonadal development of females of Xiphopenaeus kroyeri caught by artisanal fishers in Espírito Santo state, southeastern region of Brazil. All females (n= 1,831) were subjected to macroscopic and microscopic morphological analysis (n= 333) of the ovaries.
C. V. Bernabé   +9 more
openaire   +2 more sources

A Comparison of DNA Metabarcoding Cloacal Swabs and Stomach Contents for Shark Diet Reconstruction

open access: yesEnvironmental DNA, Volume 8, Issue 1, January–February 2026.
Our results indicate that the less invasive, non‐lethal method of DNA metabarcoding cloacal swabs provided higher taxonomic resolution than more common methods for studying shark trophic ecology (i.e., morphological stomach contents identification and trophic biomarkers) with no statistical difference in overall diet description between cloacal swabs ...
Savannah J. Ryburn   +5 more
wiley   +1 more source

Macrocrustaceans of non-consolidated sublittoral of the São Vicente Estuarine Bay Complex, São Paulo state, Brazil [PDF]

open access: yesCheck List, 2006
Despite the economic importance of thecarcinofauna which inhabits the estuarine regionsof São Vicente, state of São Paulo, Brazil, thereare few studies of the biology, distribution andbiodiversity of crustaceans.
Reigada, A. L. D.   +3 more
doaj   +4 more sources

No compromise between metabolism and behavior of decorator crabs in reduced pH conditions. [PDF]

open access: yes, 2019
Many marine calcifiers experience metabolic costs when exposed to experimental ocean acidification conditions, potentially limiting the energy available to support regulatory processes and behaviors. Decorator crabs expend energy on decoration camouflage
Graeve, Olivia A   +3 more
core   +3 more sources

Forensic Genetics Into Taxonomic Protocols Finds Misidentifications in Marine Shrimp Packages Commercialized in Brazil

open access: yesAquaculture, Fish and Fisheries, Volume 5, Issue 5, October 2025.
ABSTRACT In Brazil, a large quantity of shrimps captured through commercial fishing is marketed as labelled frozen packages following current legislation (Normative Instruction No. 23, of 20 August 2019). This study tested the possibility of errors in species identification (forensic analysis) listed on the labels of packages sold in the country by ...
Rodrigo Pantoni   +2 more
wiley   +1 more source

Seasonal foods, gonadal maturation, and length-weight relationships for nine fishes commonly captured by shrimp trawl on the Northwest Gulf of Mexico Continental Shelf [PDF]

open access: yes, 2008
Recent emphasis on ecosystem approaches to fisheries management renews interest in, and the need for, trophic information about fish communities. A program was started in 1980 at the National Marine Fisheries Service Galveston Laboratory to develop a ...
Sheridan, P.
core  

How Marine Megabenthos Fauna Responds to River Discharge and Artificial Flood in Large River Estuary

open access: yesEcology and Evolution, Volume 15, Issue 1, January 2025.
The artificial flood reshaped the geographical distribution of megabenthic fauna in the estuarine area in a short time, mainly as a result of the dramatic changes in seawater salinity and nutrients caused by flow pulse. An eco‐friendly discharge management of the Yellow River is needed to weaken the impact. ABSTRACT Estuaries are ecologically sensitive
Debin Sun   +6 more
wiley   +1 more source

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