Results 41 to 50 of about 7,793 (255)

First record of the non-indigenous portunid crab Charybdis variegata from the western Atlantic coast [PDF]

open access: yes, 2012
Biological invasions are a present and growing environmental problem because non-indigenous organisms may affect the structure and functioning of native communities.
Sant’Anna, Bruno Sampaio   +3 more
core   +1 more source

Crushing and Cutting: Shape Variation and Morphological Integration Between the Claws of Two Swimming Crab Species (Brachyura: Portunidae)

open access: yesActa Zoologica, EarlyView.
ABSTRACT This study investigated shape variations and morphological integration between the components of crusher and cutter claws in two species of swimming crabs, Callinectes danae and Callinectes ornatus. The propodi and dactyli of the claws were analysed in males and females of both species, using geometric morphometric techniques to identify ...
Julia Tadiotto   +4 more
wiley   +1 more source

KEKAYAAN JENIS PORTUNIDAE DI SISI SHIPPING LINE SELAT MADURA

open access: yesBerkala Penelitian Hayati, 2006
A monitoring activity for the existence of portunid crabs in the narrowest part of Madura Strait has been done from 2001 to 2004. Crabs have been collected in June or July each year in day time during spring tide. Crab collection was carried out in four sampling station (I to IV) using 0,5 cm trawl net for 10 minutes netting in each time.
Bambang Irawan, Agoes Soegianto
openaire   +2 more sources

Century‐Scale Changes in the Feeding Patterns of Demersal Fish Species in the Western North Sea

open access: yesFish and Fisheries, EarlyView.
ABSTRACT Understanding the extent and magnitude of change in marine food webs requires historical data that predates modern monitoring efforts. Such information can provide invaluable insights into the longer‐term impacts of altered trophic interactions, yet it is rarely incorporated into marine policy frameworks.
Georgina L. Hunt   +4 more
wiley   +1 more source

Occurrence of ovigerous females of Callinectes bocourti A. Milne-Edwards, 1879 (Decapoda: Portunidae) on the Amazon Continental Shelf [PDF]

open access: yesNauplius
The family Portunidae comprises a diverse group of crabs, with 336 described species. Although they are easily collected and widely distributed in coastal regions, the life history of Callinectes bocourti remains poorly understood.
Amanda C. S. Bezerra   +3 more
doaj   +1 more source

Assessment of a Social Media‐Based Method for Determining Raptor Diet

open access: yesEcology and Evolution, Volume 15, Issue 6, June 2025.
This study mined social media as a citizen science method to reduce the time burden and biases associated with recording accurate diet information for predators. In total, 1985 prey observations were recorded of two Australian coastal raptors and were used to produce diet profiles that were compared by region, social media platform, and against other ...
Leo Biggs   +7 more
wiley   +1 more source

Relative Growth and Size Structure of Achelous spinicarpus Stimpson, 1871 Associated with Shrimp Trawling in the State of Veracruz

open access: yesJournal of Marine Science and Engineering, 2021
The objective was to analyse the relative growth and size structure of Achelous spinicarpus associated with trawling in Veracruz. The organisms came from shrimp trawls carried out in July 2013. There were 45 trawls organized in two depth intervals (B: 22
Angel Morán-Silva   +5 more
doaj   +1 more source

Crustaceans as Key Prey: Insights Into the Dietary Partitioning of Four Carnivorous Fishes in the Nansha Islands, South China Sea

open access: yesEcology and Evolution, Volume 15, Issue 6, June 2025.
This study, through a combination of morphological analysis, molecular identification, and stable isotope analysis, confirmed that crustaceans are the primary food source for these fishes. Small carnivorous fishes reduce niche overlap by selectively feeding on different types of crustaceans—a strategy supported by the abundant crustacean resources in ...
Chen Zhang   +4 more
wiley   +1 more source

A collection of crabs (Crustacea, Brachyura) from the southwestern coast of India, with a discussion of the systematic position of Nectopanope Wood-Mason in Wood-Mason & Alcock, 1891 (Euryplacidae) [PDF]

open access: yesZooKeys, 2019
A report on the brachyuran crabs collected from the southwestern coast of India by the Indian research vessel FORV Sagar Sampada is presented. The material consists of 13 species from three genera and five families, of which four are new records for ...
Peter K.L. Ng   +3 more
doaj   +2 more sources

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  

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