Results 81 to 90 of about 288,424 (245)

LIMB LOSS AND THE MOLT CYCLE IN THE FRESHWATER SHRIMP,PALAEMONETES KADIAKENSIS

open access: yesThe Biological Bulletin, 1974
1. The loss of four walking legs induces molting in the freshwater shrimp, Palaemonetes kadiakensis. This study shows that at least in one species of Natantia, excessive limb loss accelerates the molting process as has been shown in several reptantian species.2.
Stoffel, Lois A, Hubschman, Jerry H
openaire   +4 more sources

The Effect of Familiarity Among Social Partners on the Jumping Behavior of Amazon Mollies

open access: yesEthology, EarlyView.
Pairs of familiar or nonfamiliar clonal Amazon mollies were tested in individual bowls, from which they could only escape from by jumping. Familiar pairs remained together significantly more than non‐familiar ones. Other behavioral aspects, such as timing and direction of jumps was not affected by familiarity.
Fritz A. Francisco   +2 more
wiley   +1 more source

Freshwater transitions and symbioses shaped the evolution and extant diversity of caridean shrimps [PDF]

open access: yes, 2018
Understanding the processes that shaped the strikingly irregular distribution of species richness across the Tree of Life is a major research agenda. Changes in ecology may go some way to explain the often strongly asymmetrical fates of sister clades ...
Cyrille Delmer   +3 more
core   +1 more source

The trophic role of cave shrimps of the genus Typhlatya seen through stable isotope eyes [PDF]

open access: yesSubterranean Biology
With the aim of describing the isotopic niche of the anchialine shrimps of the genus Typhlatya from the Yucatan Peninsula (YP) we analyze a dataset that includes three of the four species present in the region using published and new δ13C and δ15N values.
Brenda Durán, Fernando Álvarez
doaj   +3 more sources

Breaking the ice: multiple origins of ice‐binding/antifreeze proteins

open access: yesThe FEBS Journal, EarlyView.
Ice‐binding proteins (IBPs) evolved independently in many organisms during Cenozoic cooling and glaciation. In flounders, α‐helical IBPs evolved from an antiviral protein, while similar IBPs arose independently from different progenitors in three other fish lineages.
Laurie A. Graham, Peter L. Davies
wiley   +1 more source

Diseases of penaeid shrimps in the Philippines [PDF]

open access: yes, 2000
The manual provides information on the diseases that affect the 3 major species of shrimps cultured in the Philippines: Penaeus monodon, P. merguiensis and P. indicus.
Cruz-Lacierda, Erlinda R.   +4 more
core   +1 more source

Effect of Selection for High Growth on Resilience of Giant Freshwater Prawn Macrobrachium rosenbergii

open access: yesJournal of Animal Breeding and Genetics, EarlyView.
ABSTRACT Resilience is the capacity of an animal to be minimally affected by disturbances or to rapidly return to its pre‐disturbance state. To the best of our knowledge, no previous study has investigated resilience in the giant freshwater prawn (GFP, Macrobrachium rosenbergii).
Tran Thi Mai Huong   +4 more
wiley   +1 more source

Ecological energetics of an imperilled fish: Physiological metrics, experimental protocols and implications for population recovery

open access: yesJournal of Fish Biology, EarlyView.
Abstract Insights about fish physiology can be useful for population management, but collecting ecologically relevant data can be challenging, especially for imperilled and sensitive species. With the goal of identifying ecologically relevant physiological metrics, we conducted a range of experiments to characterize the metabolism, food consumption ...
Jacob W. Brownscombe   +4 more
wiley   +1 more source

The habitat use of ariid catfishes in coral reefs in northeastern Brazil

open access: yesJournal of Fish Biology, EarlyView.
Abstract Ariidae species occur across a wide range of habitats from freshwater to fully marine environments and are typically associated with soft‐bottom substrates. However, they are sometimes associated with hard‐bottom substrates such as coral reefs, but such association is poorly documented.
Romullo Guimarães Lima   +9 more
wiley   +1 more source

Implications of differences between temperate and tropical freshwater ecosystems for the ecological risk assessment of pesticides [PDF]

open access: yes, 2009
Despite considerable increased pesticide use over the past decades, little research has been done into their fate and effects in surface waters in tropical regions.
Brink, P.J., van den   +3 more
core   +1 more source

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