The effect of hypoxia on the vulnerability of guppies (Poecilia reticulata, Poeciliidae) to an aquatic predator (Astronotus ocellatus, Cichlidae)

1987 ◽  
Vol 20 (4) ◽  
pp. 285-292 ◽  
Author(s):  
Robert Poulin ◽  
Nancy G. Wolf ◽  
Donald L. Kramer
Keyword(s):  
Poecilia Reticulata ◽  
Astronotus Ocellatus

Evaluating the use of ram and suction during prey capture by cichlid fishes

2001 ◽  
Vol 204 (17) ◽  
pp. 3039-3051 ◽  
Author(s):  
Peter C. Wainwright ◽  
Lara A. Ferry-Graham ◽  
Thomas B. Waltzek ◽  
Andrew M. Carroll ◽  
C. Darrin Hulsey ◽  
...  
Keyword(s):  
Poecilia Reticulata ◽  
Prey Capture ◽  
Suction Feeding ◽  
Predator Species ◽  
Cichlid Fishes ◽  
Major Constraint ◽  
Exponential Decline ◽  
Astronotus Ocellatus ◽  
Limited Variation ◽  
Jaw Protrusion

SUMMARYWe characterized prey-capture strategies in seven species of cichlid fishes representing diverse trophic habits and anticipated feeding abilities. The species examined were Petenia splendida, Cichla ocellaris, Cichlasoma minckleyi, Astronotus ocellatus, Crenicichla geayi, Heros severus (formerly Cichlasoma severum) and Cyprichromis leptosoma. Three individuals per species were filmed with video at 500Hz as they captured live adult Artemia sp. and Poecilia reticulata. For each feeding sequence, we measured the contribution of predator movement towards the prey (i.e. ram) and the movement of prey towards the predator due to suction. The use of ram differed significantly among prey types and predator species, varying as much as sixfold across predator species. High values of ram resulted in high attack velocities. Jaw protrusion contributed as much as 50% to overall ram values in some species, verifying its role in enhancing attack velocity. Suction distance did not vary significantly among species. Diversity in prey-capture behavior was therefore found to reflect differences among species in the strategy used to approach prey. Limited variation in the distance from which prey were sucked into the mouth is interpreted as the result of an expected exponential decline in water velocity with distance from the mouth of the suction-feeding predator. We propose that this relationship represents a major constraint on the distance over which suction feeding is effective for all aquatic-feeding predators.

scholarly journals Update to the catalogue of South Australian freshwater fishes (Petromyzontida & Actinopterygii)

Zootaxa ◽  
2012 ◽  
Vol 3593 (1) ◽  
pp. 59 ◽  
Author(s):  
MICHAEL P. HAMMER ◽  
MARK ADAMS ◽  
RALPH FOSTER
Keyword(s):  
Alien Species ◽  
Native Species ◽  
Poecilia Reticulata ◽  
Research Effort ◽  
South Australia ◽  
Freshwater Fishes ◽  
Arid Environments ◽  
Xiphophorus Hellerii ◽  
Astronotus Ocellatus ◽  
Australian Freshwater

South Australia is a large Australian state (~1,000,000 km2) with diverse aquatic habitats spread across temperate to arid environments. The knowledge of freshwater fishes in this jurisdiction has advanced considerably since the last detailed catalogue of native and alien species was published in 2004 owing to significant survey and research effort, spatial analysis of museum data, and incidental records. The updated list includes 60 native and 35 alien species. New additions to the native fauna include cryptic species of Retropinna semoni s.l. (Weber) and Galaxias olidus s.l. (Günther). Two others have been rediscovered after long absences, namely Neochanna cleaveri (Scott) and Mogurnda adspersa (Castelnau). Range extensions are reported for native populations of Galaxias brevipinnis Günther, Leiopotherapon unicolour (Günther), Hypseleotris spp. (hybridogenetic forms) and Philypnodon macrostomus Hoese and Reader. There are five new alien species records (all aquarium species) including Phalloceros caudimaculatus (Hensel), Poecilia reticulata Peters, Xiphophorus hellerii Heckel, Astronotus ocellatus (Agassiz) and Paratilapia polleni Bleeker, with confirmation of Misgurnus anguillicaudatus (Cantor). Other range extensions for alien (exotic or translocated native) species in different drainage divisions (various modes of human-mediated dispersal) include Nematalosa erebi (Günther), Cyprinus carpio Linnaeus, Oncorhynchus mykiss (Walbaum), Salmo salar Linnaeus, Salvelinus fontinalis (Mitchell), Melanotaenia fluviatilis (Castelnau), Atherinosoma microstoma (Günther), Macquaria novemaculeata (Steindachner), Nannoperca australis Günther, Pseudaphritis urvillii (Valenciennes), and Hypseleotris spp. (hybridogenetic forms). New records are a combination of greater available information and new incursions, highlighting the need for ongoing detailed surveys and reporting to detect rare native and alien species.

Use of the Japanese Medaka ( Oryzias latipes ) and Guppy ( Poecilia reticulata ) in Carcinogenesis Testing Under National Toxicology Program Protocols

2003 ◽  
Vol 31 (1) ◽  
pp. 88-91 ◽  
Author(s):  
William E. Hawkins ◽  
William W. Walker ◽  
John W. Fournie ◽  
C. Steve Manning ◽  
Rena M. Krol
Keyword(s):  
Poecilia Reticulata ◽  
Oryzias Latipes ◽  
Japanese Medaka ◽  
National Toxicology Program

Exploring the solitaire illusion in guppies (Poecilia reticulata).

2018 ◽  
Vol 132 (1) ◽  
pp. 48-57 ◽  
Author(s):  
Maria Elena Miletto Petrazzini ◽  
Audrey E. Parrish ◽  
Michael J. Beran ◽  
Christian Agrillo
Keyword(s):  
Poecilia Reticulata

scholarly journals Development and validation of an environmental DNA protocol to detect an invasive Caribbean freshwater fish, the guppy ( Poecilia reticulata )

2021 ◽  
Author(s):  
Sierra N. Smith ◽  
Ingo Schlupp ◽  
Edward D. Higgins ◽  
Jessa L. Watters ◽  
Kerri‐Ann Bennett ◽  
...  
Keyword(s):  
Freshwater Fish ◽  
Poecilia Reticulata ◽  
Environmental Dna ◽  
Development And Validation

scholarly journals Trinidadian guppies use a social heuristic that can support cooperation among non-kin

2020 ◽  
Vol 287 (1934) ◽  
pp. 20200487 ◽  
Author(s):  
Safi K. Darden ◽  
Richard James ◽  
James M. Cave ◽  
Josefine Bohr Brask ◽  
Darren P. Croft
Keyword(s):  
Poecilia Reticulata ◽  
Social Space ◽  
Inclusive Fitness ◽  
Single Point ◽  
Theoretical Work ◽  
Evolution Of Cooperation ◽  
Social Partner ◽  
Proximate Mechanisms ◽  
Cognitive Limitations ◽  
Fitness Benefits

Cooperation among non-kin is well documented in humans and widespread in non-human animals, but explaining the occurrence of cooperation in the absence of inclusive fitness benefits has proven a significant challenge. Current theoretical explanations converge on a single point: cooperators can prevail when they cluster in social space. However, we know very little about the real-world mechanisms that drive such clustering, particularly in systems where cognitive limitations make it unlikely that mechanisms such as score keeping and reputation are at play. Here, we show that Trinidadian guppies ( Poecilia reticulata ) use a ‘walk away’ strategy, a simple social heuristic by which assortment by cooperativeness can come about among mobile agents. Guppies cooperate during predator inspection and we found that when experiencing defection in this context, individuals prefer to move to a new social environment, despite having no prior information about this new social group. Our results provide evidence in non-human animals that individuals use a simple social partner updating strategy in response to defection, supporting theoretical work applying heuristics to understanding the proximate mechanisms underpinning the evolution of cooperation among non-kin.

Optimization of handling and refrigerated storage of guppy Poecilia reticulata sperm

2010 ◽  
Vol 77 (1) ◽  
pp. 54-66 ◽  
Author(s):  
C. Sun ◽  
C. Huang ◽  
X. Su ◽  
X. Zhao ◽  
Q. Dong
Keyword(s):  
Poecilia Reticulata ◽  
Refrigerated Storage
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