Results 41 to 50 of about 9,423 (285)

Reproductive biology of Garra regressus and Garra tana (Cypriniformes: Cyprinidae) from Lake Tana, Ethiopia

open access: yesJournal of Threatened Taxa, 2015
The reproductive biology of Garra regressus and Garra tana was investigated by collecting monthly samples (January to December 2006) from the southern Gulf of Lake Tana, where these species are endemic.  Garra regressus has an extended breeding time from
Akewake Geremew   +2 more
doaj   +3 more sources

Thermal conditions and age structure determine the spawning regularities and condition of Baltic herring (Clupea harengus membras) in the NE of the Baltic Sea [PDF]

open access: yesPeerJ, 2019
Baltic herring (Clupea harengus membras) is a total spawner with a group-synchronous ovarian organization. Age polymodality in total spawners is considered an important factor in assuring that a strong population is sustainable under an intensive ...
Timo Arula   +3 more
doaj   +2 more sources

Zygoparity and sex steroid hormone profiles in bluemouth Helicolenus dactylopterus [PDF]

open access: yes, 2017
Two hundred and seven individuals (103 females and 104 males) of bluemouth Helicolenus dactylopterus (Scorpaeniformes, Sebastidae), a commercially important deep-water species with an unusual reproductive strategy, from the eastern Atlantic Ocean ranging
Barcellos   +30 more
core   +1 more source

Spawning seasons of Rasbora tawarensis (Pisces: Cyprinidae) in Lake Laut Tawar, Aceh Province, Indonesia

open access: yesReproductive Biology and Endocrinology, 2010
Background Rasbora tawarensis is an endemic freshwater fish in Lake Laut Tawar, Aceh Province, Indonesia. Unfortunately, its status is regarded as critical endangered with populations decreasing in recent years.
Musman Musri   +2 more
doaj   +1 more source

Factors determining spawning success in Penaeus monodon Fabricius [PDF]

open access: yes, 2001
Spawning success in relation to the size of spawner, clumping of eggs, percentage of spawning and frequency of spawning was studied in Penaeus monodon collected off Tamil Nadu, India. The results indicated positive correlation between the size of spawner
Babu, M.   +3 more
core  

Shaping of Biohybrid Functional Living Materials

open access: yesAdvanced Functional Materials, EarlyView.
This work demonstrates a strategy for shaping living mycelium into functional materials by directing its natural growth. Nanoparticles armor hyphae, micron‐scale particles entangle within the network, and printed hydrogel architectures steer expansion, creating defined geometries.
Sarah Schyck   +3 more
wiley   +1 more source

Estimating population size and observation bias for spring Chinook Salmon

open access: yesConservation Science and Practice, 2019
The primary conservation prioritization tool for spring Chinook Salmon (Oncorhynchus tshawytscha), population viability analysis, is often conducted with biased spawner abundance data with no associated statistical uncertainty or error.
Andrew R. Murdoch   +3 more
doaj   +1 more source

Hierarchical Summary Statistics Encoding Across Primary Visual and Posterior Parietal Cortices

open access: yesAdvanced Science, EarlyView.
This study shows that mouse V1 simultaneously encodes the ensemble mean and variance of motion, providing a robust summary‐statistic representation that persists despite single‐neuron variability. These signals propagate to PPC, where they are transformed into abstract category representations during decision making.
Young‐Beom Lee   +4 more
wiley   +1 more source

Stock assessment of the gulf menhaden, Brevoortia patronus, fishery [PDF]

open access: yes, 1987
A stock assessment of the gulf menhaden. Brevoortia patronus, fishery was conducted with data on purse-seine landings from 1946 to 1985 and port sampling data from 1964 to 1985.
Vaughan, Douglas S.
core  

Evaluation and management implications of uncertainty in a multispecies size-structured model of population and community responses to fishing [PDF]

open access: yes, 2014
1. Implementation of an ecosystem approach to fisheries requires advice on trade-offs among fished species and between fisheries yields and biodiversity or food web properties.
Collie, Jeremy S.   +4 more
core   +2 more sources

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