Results 91 to 100 of about 337,344 (303)

Mapping molluscan endocrinology: a systematic and critical appraisal

open access: yesBiological Reviews, EarlyView.
ABSTRACT Historically, a vertebrate‐centric paradigm has framed our interpretation of molluscan endocrinology, with considerable research focusing on vertebrate‐type steroid hormones (e.g. oestrogens, testosterone). However, contradictory evidence on the occurrence of vertebrate‐type steroid hormones in molluscan tissues, and a lack of the specific ...
Konstantinos Panagiotidis   +3 more
wiley   +1 more source

The Crappies [PDF]

open access: yes, 1958
The names: bachelor, campbellite, white bass, camp lighter, sac-a-lait, silver crappie, speckled bass, tinmouth, bar fish, Oswego bass, razorback, grassback, shiner, john demon, calico bass, strawberry bass and "crap'pee," along with 10-20 others, all ...
Schwartz, Frank J.
core  

Injuries in deep time: interpreting competitive behaviours in extinct reptiles via palaeopathology

open access: yesBiological Reviews, EarlyView.
ABSTRACT For over a century, palaeopathology has been used as a tool for understanding evolution, disease in past communities and populations, and to interpret behaviour of extinct taxa. Physical traumas in particular have frequently been the justification for interpretations about aggressive and even competitive behaviours in extinct taxa.
Maximilian Scott   +3 more
wiley   +1 more source

Ovarian microrna transcriptome of Macrobrachium rosenbergii after eyestalk ablation: unveiling molecular switches in reproductive regulation

open access: yesBMC Genomics
Background Macrobrachium rosenbergii is an economically important freshwater prawn species in China. The X-organ–sinus gland complex in crustacean eyestalks regulates reproduction through neurohormones, with ablation significantly promoting ovarian ...
Huwei Yuan   +6 more
doaj   +1 more source

Variations in 5S rDNAs in diploid and tetraploid offspring of red crucian carp × common carp

open access: yesBMC Genetics, 2017
Background The allotetraploid hybrid fish (4nAT) that was created in a previous study through an intergeneric cross between red crucian carp (Carassius auratus red var., ♀) and common carp (Cyprinus carpio L., ♂) provided an excellent platform to ...
Lihai Ye   +4 more
doaj   +1 more source

A guide to the freshwater fauna of Ceylon [PDF]

open access: yes, 1962
Freshwater animals are of importance in the economy of most countries. In recent years the scientific cultivation of freshwater fish for food has been spreading throughout South-East Asia and the Far-East.
Fernando, C.H.   +2 more
core  

Influence of open and closed river systems on the migrations of two northern New Zealand populations of banded kokopu (Galaxias fasciatus) [PDF]

open access: yes, 2012
Otolith microchemical analysis by laser ablation inductively coupled mass spectrometry (ICP-MS) was used to investigate the migratory life histories of banded kokopu (Galaxias fasciatus) in two streams on the North Island of New Zealand.
Hicks, Brendan J., Tana, Raymond
core   +2 more sources

A review of the historic and present ecological role of aquatic and shoreline wood, from forest to deep sea

open access: yesBiological Reviews, EarlyView.
ABSTRACT The ecology of forests, their losses, and terrestrial wood decomposition dynamics have been intensively studied and reviewed. In the aquatic realm, reviews have concentrated on large wood (LW) in rivers and the transition from freshwater to marine environments in the Pacific Northwest of North America. However, a comprehensive global synthesis
Jon Dickson   +9 more
wiley   +1 more source

Control of bacterial disease in small scale fresh-water aquaculture: Project R0754. Project completion report December 1998 - May 1999 [PDF]

open access: yes, 1999
The work presented here represents an 18-month study to examine the relationship between environmental conditions, bacterial load in the water and bacteria levels in tissue macrophages of a range of clinically healthy freshwater fish species, farmed in a
Crumlish, M., Thompson, K.
core  

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