Results 91 to 100 of about 38,103 (257)

Rhythms of Locomotion Expressed by Limulus polyphemus, the American Horseshoe Crab: II. Relationship to Circadian Rhythms of Visual Sensitivity [PDF]

, 2008
In the laboratory, horseshoe crabs express a circadian rhythm of visual sensitivity as well as daily and circatidal rhythms of locomotion. The major goal of this investigation was to determine whether the circadian clock underlying changes in visual ...
Bedford, Lisa, Chabot, Christopher C., Watson, Winsor H., III   +2 more
core   +3 more sources

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

Acta 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, Alexandre Ribeiro da Silva, Julia Fernandes Perroca, Rogerio Caetano Costa, Caio Santos Nogueira   +4 more
wiley   +1 more source

Pola Musim Dan Daerah Penangkapan Rajungan (Portunus Pelagicus) Di Perairan Kabupaten Pangkep (Season and Patterns of Catching Swimming Crab (Portunus Pelagicus) in Pangkep Waters Regency) [PDF]

, 2014
The season patern of swimming crab is influenced by rekruitman amount generated by each individual crab in the fishing ground. This study aims to assess the pattern of fishing crab season and the fishing ground as a participatory method in Pangkep water ...
Haluan, J. (John), Ihsan, I. (Ihsan), Wisudo, S. H. (Sugeng), Wiyono, E. S. (Eko)   +3 more
core  

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

Acta 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, Ana Carla Soares da Silva, Lucas Jhones de Santana Neves, Carlos Eduardo Rocha Duarte Alencar, Fabrício Lopes Carvalho   +4 more
wiley   +1 more source

The Role of Adult Fiddler Crab Environmental Acoustic Cues and Chemical Cues in Stimulating Molting of Field-Caught Megalopae [PDF]

, 2017
In mid-Atlantic estuaries, three fiddler crab species, Uca pugilator, Uca pugnax and Uca minax co-occur, with their adults occupying different habitat types distinguished by salinity and sediment size.
Piniak, Wendy Dow, Reinsel, Kathleen A., Waddell, Emily E., Welch, James M.   +3 more
core   +1 more source

Lessons from an eradication under multiple constraints of an island rat population of record density

Conservation Biology, EarlyView.
Abstract Invasive rats threaten island biodiversity, disrupting ecosystems and endangering native species. Although rat eradication has succeeded on many islands, tropical islands present unique management challenges. Strict regulations and financial constraints on some tropical islands further limit proven eradication methods, complicating rodent ...
Tatiane Micheletti, Thayná J. Mello, Carlos Verona, Vinícius P. O. Gasparotto, Ricardo Krul, Ricardo Araujo, Thali Sampaio, Paulo Rogerio Mangini   +7 more
wiley   +1 more source

Aquaculture Management of Blue Swimming Crab (Portunus pelagicus) in Boncong Bancar Marine Farming Facility, Tuban Regency, East Java Province, Indonesia

Aquatic Life Sciences
This study was conducted at the Boncong Bancar Marine Farming Facility in Tuban, East Java, focusing on Blue Swimming Crab (Portunus pelagicus) aquaculture.
Juahir Juahir
doaj   +1 more source

The Amino Acid Composition of Blue Swimming Crab (Portunus Segnis, Forskal, 1775) from The North Eastern Mediterranean Sea of Turkey

Turkish Journal of Agriculture: Food Science and Technology, 2018
This study was carried out to detect the content of amino acid in female and male specimens of blue swimming crab (Portunus segnis) obtained from (including 12 male crab and also 12 female crab) North Eastern Mediterranean Sea, Turkey.
Engin Artar, İlkan Ali Olgunoğlu
doaj   +1 more source

CORRECTION OF BLUE SWIMMING CRAB FOLDING TRAP ENTRANCE

Jurnal Teknologi Perikanan dan Kelautan
Bubu lipat rajungan banyak digunakan oleh nelayan Indonesia karena mudah dibuat, dioperasikan. Hasil pengamatan menunjukkan bahwa rajungan sering mengalami kesulitan ketika melewati lintasan masuk, karena kaki-kakinya terperosok ke dalam mata jaring. Duri-duri pada sisi badannya sering tersangkut pada benang jaring, karena celah masuk terlalu sempit ...
Defra Monika Nasution, Gondo Puspito, Didin Komarudin, Mustaruddin Mustaruddin, Deni Aulia   +4 more
openaire   +1 more source

Ghost fishing efficiency in swimming crab (Portunus trituberculatus) pot fishery

Marine Pollution Bulletin
Abandoned, lost, or otherwise discarded fishing gear (ALDFG) is a global challenge that negatively affects marine environment through plastic pollution and continued capture of marine animals, so-called "ghost fishing". In different pot fisheries, ghost fishing related to ALDFG is of concern, including pot fishery targeting swimming crab (Portunus ...
Yu, Mengjie, Herrmann, Bent, Cerbule, Kristine, Liu, Changdong, Dou, Yilin, Zhang, Liyou, Tang, Yanli   +6 more
openaire   +3 more sources