Results 41 to 50 of about 66,982 (277)

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

Weaponry Investment in the Socially Monogamous Snapping Shrimp Alpheus brasileiro (Decapoda: Alpheidae)

open access: yesActa Zoologica, EarlyView.
ABSTRACT Weapons are morphological structures used by animals in various contexts, especially in intra‐specific contests and visual displays. In snapping shrimps of the genus Alpheus, particularly the monogamous species Alpheus brasileiro, both sexes bear enlarged chelipeds, potentially conferring advantages in mate competition or territorial defence ...
Leonardo Moreira   +3 more
wiley   +1 more source

Lysmata Rafa, a New Species of Peppermint Shrimp (Crustacea, Caridea, Hippolytidae) from the Subtropical Western Atlantic [PDF]

open access: yes, 2007
Lysmata rafa n. sp. is described from freshly collected specimens from the Keys West Lakes, Florida Keys, and from a museum specimen collected at Bear Cut, Biscayne Bay, Florida.
Anker, Arthur, Rhyne, Andrew L.
core   +2 more sources

Geometric Morphometrics Reveal Body Shape Variation in Freshwater Shrimps of the Genus Macrobrachium Lacking a Mandibular Palp (Formerly Pseudopalaemon Sollaud, 1911) (Decapoda: Palaemonidae)

open access: yesActa Zoologica, EarlyView.
ABSTRACT Shape variation in the cephalothorax of Macrobrachium species without mandibular palp using geometric morphometrics was used as a tool to support species differentiation and propose new diagnostic characters for taxonomic identification.
Thaís Arrais Mota   +4 more
wiley   +1 more source

Spatial habitat partitioning enables coexistence of three Gobiidae species in estuarine environments

open access: yesJournal of Fish Biology, EarlyView.
Abstract This study examines resource partitioning (feeding morphology, diet and habitat partitioning) among three gobiid species, the Knysna sandgoby Psammogobius knysnaensis, the prison goby Caffrogobius gilchristi and the river goby Glossogobius callidus, within an estuarine environment.
Phumza M. Ndaleni   +5 more
wiley   +1 more source

Inventory of the Decapod Crustaceans (Crayfishes and Shrimps) of Arkansas with a Discussion of Their Habitats [PDF]

open access: yes, 1980
The freshwater decapod crustaceans of Arkansas presently consist of two species of shrimps and 51 taxa of crayfishes divided into 47 species and four subspecies. The shrimps are represented by Macrobranchium ohione and Palaemonetes kadiakensis.
Bouchard, Raymond W., Robison, Henry W.
core   +2 more sources

Impact of noise on the behaviour and biochemical parameters of the crayfish Cherax quadricarinatus and Cherax destructor

open access: yesJournal of Zoology, EarlyView.
The aim of this study was to evaluate the effect of acoustic stimulus on the behavioural and biochemical responses of two species of crayfish, Cherax destructor and Cherax quadricarinatus. Our results showed that exposure to noise significantly affects in both species motility parameters, agonistic interactions and acoustic signals emitted. In terms of
Clarissa De Vita   +6 more
wiley   +1 more source

DNA testing of edible crabs from seafood shops on the Odisha coast, India

open access: yesBiomolecular Concepts, 2018
Seafood consumption is highly demanding due to the important source of protein it contains, as well as being rich in omega-3 fatty acids. However, the adulteration of seafood is an alarming issue worldwide, including India.
Rath Shibananda   +6 more
doaj   +1 more source

New erymid lobsters from the Nusplingen and Usseltal formations (Upper Jurassic) of southwest Germany

open access: yesGeologija, 2020
Two new species of Late Jurassic erymid lobsters, Stenodactylina devillezi sp. nov. and Stenodactylina geigerae sp. nov., are described on the basis of isolated, but well-preserved chelipeds from the upper Kimmeridgian of Swabia and the lower Tithonian
Günter SCHWEIGERT, Jürgen HÄRER
doaj   +1 more source

Development of a multi-modal deep-learning-based web application for image classification of marine decapods in conservation practice

open access: yesFrontiers in Marine Science
Marine invasive Decapoda species have caused huge losses to biodiversity and world fisheries. Early awareness of non-indigenous species (NIS) is critical to prompt response and mitigate impacts.
Peng Zhou   +14 more
doaj   +1 more source

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