Results 51 to 60 of about 3,383 (189)
Defensive Behaviour in Intertidal Crabs
Ethology, Volume 131, Issue 4, April 2025.Mangrove swimming crab showing defensive behaviour by raising its chelae; ruler and grey card are also shown. ABSTRACT Despite a long roster of prey defences against predators now documented by biologists, any given species utilises only some of them, and we have few a priori predictions as to if, when or where they will be employed.
Manisha Koneru, Tim Caro
wiley +1 more source
Size-dependent competition in a gregarious porcelain crab Petrolisthes cinctipes (Anomura: Porcellanidae) [PDF]
Marine Ecology Progress Series, 2004 Studies of competition in benthic marine organisms have focused on sessile filter-feed- ers and mobile grazers, to the neglect of mobile filter-feeders, including porcelain crabs. The present study demonstrates intraspecific competition in Petrolisthes cinctipes (Randall) (Porcellanidae: Anomura). P.
openaire +1 more source
Journal of the World Aquaculture Society, Volume 56, Issue 2, April 2025.Abstract This study investigates the efficacy of acid‐insoluble ash (AIA) as an endogenous digestibility marker in commercial aquaculture ingredients and feeds. AIA is a naturally occurring, low‐cost alternative to external markers such as chromic oxide and yttrium oxide. External markers are often impractical in the production of small batches of feed
Julio Camperio +3 more
wiley +1 more source
Fisheries and Aquatic SciencesEcological modeling using stable isotopes combined with network analysis provides a holistic view of how different trophic pathways support the productivity of fishery species.
Diana Medina-Contreras +5 more
doaj +1 more source
Detection of Salinity by the Lobster, Homarus americanus [PDF]
, 2001 Changes in the heart rates of lobsters (Homarus americanus) were used as an indicator that the animals were capable of sensing a reduction in the salinity of the ambient seawater.
Dufort, Christopher G. +3 more
core +1 more source
Impact of hard-bottom substrata on the small-scale distribution of fish and decapods in shallow subtidal temperate waters [PDF]
, 2012 The micro-scale spatial distribution patterns of a demersal fish and decapod crustacean assemblage were assessed in a hard-bottom kelp environment in the southern North Sea. Using quadrats along line transects, we assessed the in situ fish and crustacean
Fischer, Philipp, Wehkamp, Stephanie
core +1 more source
Polyploidy confers better cold tolerance in Daphnia
Oikos, Volume 2025, Issue 3, March 2025.Despite decades of studies on the differential distribution of polyploid organisms, the causes of this pattern have yet to be elucidated. This study aimed to explore some of the possible physiological mechanisms explaining the differential northern distribution of polyploid clones of Daphnia pulex compared to the one of the diploid parental species ...
Ivan Pecl +2 more
wiley +1 more source
DiversityThe tubes of polychaetes of the genus Chaetopterus (Annelida: Chaetopteridae) provide habitat for cryptic, symbiotic organisms that are often overlooked when examining diversity.
Shannon D. Brown +6 more
doaj +1 more source
Landing of Squat lobsters [PDF]
, 2006 Landing of a deepsea decapod crustacean generally known as ‘Squat lobster’ was reported from landing centres at Sakthikulangara, Kollam and Kalamukku at ...
CMFRI, Kochi
core
A new method for fabrication of nanohydroxyapatite and TCP from the sea snail Cerithium vulgatum [PDF]
, 2014 Biphasic bioceramic nanopowders of hydroxyapatite (HA) and β-tricalcium phosphate (TCP) were prepared from shells of the sea snail Cerithium vulgatum (Bruguière, 1792) using a novel chemical method.
Agathopoulos, S +4 more
core +3 more sources