Results 101 to 110 of about 37,948 (302)

Development of a non‐lethal stomach content analysis method for freshwater eels: An empirical evaluation of the tube method for Anguilla marmorata

open access: yesJournal of Fish Biology, EarlyView.
Abstract Understanding the feeding habits of predatory fish is essential for unravelling food web structures and implementing conservation strategies in riverine ecosystems. However, conventional lethal stomach content analysis methods are not necessarily appropriate for long‐term dietary studies, particularly for threatened species, as they require ...
Tatsuhiko Maeda   +3 more
wiley   +1 more source

Description of the first juvenile stage of Dilocarcinus septemdentatus (Herbst, 1783) (Crustacea, Decapoda, Trichodactylidae)

open access: yesNauplius, 2017
A total of 38 freshwater brachyuran species occur in Brazil, of which 79% are distributed in the northern region. However, for only two species of freshwater crabs are descriptions available for their juveniles.
Cleverson Rannieri Meira dos Santos   +1 more
doaj   +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

PREDATION ON SNAKES BY THE FRESHWATER LAND CRAB EUDANIELA GARMANI [PDF]

open access: yesJournal of Crustacean Biology, 2003
Abstract We recorded the incidence of predation on snakes by the amphibious freshwater land crab Eudaniela garmani (manicou crab) in the rainforests of the Caribbean island of Tobago during 168 days of field observation (spanning a 4-year period) conducted between the hours of 08.00 AM and 12.00 noon and 21.00 PM and 23.30 PM.
openaire   +1 more source

Comparison of different methodologies for DNA extraction from Aegla longirostri

open access: yesBrazilian Archives of Biology and Technology, 2007
The aim of this study was to compare some DNA extraction methodologies for Aegla longirostri. The protocols were based on the traditional phenol-chloroform DNA extraction methodology and using a commercial kit for DNA extraction. They differed in tissues
João Vitor Trindade Bitencourt   +3 more
doaj   +1 more source

Potential causes of mortality for horseshoe crabs (Limulus polyphemus) during the biomedical bleeding process [PDF]

open access: yes, 2006
Biomedical companies catch and bleed horseshoe crabs for the production of Limulus amebocyte lysate (LAL), a product used for protecting public health (Berkson and Shuster, 1999).
Berkson, Jim, Hurton, Lenka
core  

Risk of Spread of Megalocytivirus pagrus1 (Infectious Spleen and Kidney Necrosis Virus) From Frozen Fillets

open access: yesJournal of Fish Diseases, EarlyView.
ABSTRACT Infectious spleen and kidney necrosis virus (ISKNV) is a significant threat to global aquatic food security by causing large‐scale mortality in the aquaculture of tilapia (Oreochromis niloticus) and mandarin fish (Siniperca chuatsi). ISKNV is a genogroup of Megalocytivirus pagrus1, along with RSIV and TRBIV, and their recent listing as WOAH ...
Joy A. Becker   +6 more
wiley   +1 more source

Otolith chemistry, stomach contents and stable isotope analysis of a snapper (Pagrus auratus) caught in the Waikato River at Ngaruawahia [PDF]

open access: yes, 2009
Analyses of stomach contents, stable isotopes and otolith microchemistry were carried out in order to ascertain the length of freshwater residence of a snapper (Pagrus auratus) caught in the Waikato River at Ngaruawahia in a net set for grey mullet(Mugil
Blair, Jennifer Marie, Hicks, Brendan J.
core   +1 more source

The Greenland–Scotland Ridge in a Changing Ocean: Time to Act?

open access: yesMarine Ecology, EarlyView.
ABSTRACT The Greenland–Scotland Ridge is a submarine mountain that rises up to 500 m below the sea surface and extends from the east coast of Greenland to the continental shelf of Iceland and across the Faroe Islands to Scotland. The ridge not only separates deeper ocean basins on either side, that is, the North Atlantic and Arctic oceans, but also ...
Christophe Pampoulie   +2 more
wiley   +1 more source

Distribution of Cryptopotamon anacoluthon (Kemp, 1918) (Crustacea: Brachyura: Potamidae), a freshwater crab endemic to Hong Kong

open access: yesJournal of Threatened Taxa, 2017
Cryptopotamon anacoluthon Kemp, 1918 is a tropical freshwater crab currently considered endemic to Hong Kong. The species is more widely distributed than previously known and potentially occurs outside Hong Kong. However, its habitat is under threat from
David John Stanton   +2 more
doaj   +1 more source

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