Results 81 to 90 of about 289,293 (264)

Annual fecundity, batch fecundity, and oocyte atresia of Atka mackerel (Pleurogrammus monopterygius) in Alaskan waters [PDF]

open access: yes, 2007
Annual potential fecundity, batch fecundity, and oocyte atresia were estimated for Atka mackerel (Pleurogrammus monopterygius) collected in Alaskan waters during 1993−94.
Gunderson, Donald R.   +2 more
core  

Ciclo gonadal del chorito Mytilus chilensis (Bivalvia: Mytilidae) en dos localidades del sur de Chile Gonadal cycle of the mussel Mytilus chilensis (Bivalvia: Mytilidae) at two localities in southern of Chile

open access: yesLatin American Journal of Aquatic Research, 2011
Se analizó de forma cualitativa y cuantitativa el ciclo gonadal del bivalvo Mytilus chilensis en las localidades de Chaihuín y bahía Yal, sur de Chile, entre octubre 2007 y junio 2008.
Pablo A Oyarzún   +5 more
doaj  

Differences in Reproductive Behavior between Spawning and Non-Spawning Zebrafish Pairs and the Effects of 17α-Ethinylestradiol (EE2)

open access: yesToxics, 2016
Reproductive success manifested by spawning and fertilization, in most fish, depends partly on an appropriate courtship behavior by both sexes. The zebrafish reproductive behavior can be resolved in some of its constituent elements by a computerized ...
Per G. Henriksen   +2 more
doaj   +1 more source

Pacific Herring, Clupea pallasi, spawning population assessment for San Francisco Bay, 1992-93 [PDF]

open access: yes, 1997
We conducted hydroacoustic surveys, spawn surveys, and sampled schools and fishery landings from 8 November 1992 through 18 March 1993 to assess the status of San Francisco Bay's Pacific herring spawning population.
Oda, Kenneth T., Watters, Diana L.
core  

A Blend of F Prostaglandins Functions as an Attractive Sex Pheromone in Silver Carp

open access: yesFishes, 2019
A series of laboratory experiments tested the hypothesis that the Silver Carp (Hypophthalmichthys molitrix), an invasive river carp from China, employs a prostaglandin F2α-derived sex pheromone that is attractive and species-specific.
Peter W. Sorensen   +4 more
doaj   +1 more source

A review of grouper (Epinephelus suillus) fry production research in Malaysia [PDF]

open access: yes, 1996
Research on grouper (Epinephelus suillus) fry production in captivity has been carried out in Malaysia since 1986 at Tanjung Demong Marine Finfish Production and Research Centre (TDMFPRC) but the breakthrough was only achieved four years later in 1990 ...
Ali, Hussin Mat
core   +1 more source

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

RESULTS OF PIKE PERCH SANDER LUCIOPERCA INTRODUCTION IN LAKE KHANKA

open access: yesИзвестия ТИНРО, 2018
Pike perch was introduced into Lake Khanka in 1970–1978. The introduction was founded on concept of low commercial productivity of the lake prevailed in those times. For the past 50 years, the species acclimatized successfully in the lake.
M. E. Shapovalov
doaj   +1 more source

Variability in spawning frequency and reproductive development of the narrow-barred Spanish mackerel (Scomberomorus commerson) along the west coast of Australia [PDF]

open access: yes, 2004
The narrow-barred Spanish mackerel (Scomberomorus commerson) is widespread throughout the Indo-West Pacific region. This study describes the reproductive biology of S.
Gaughan, Daniel J.   +3 more
core  

Long-term retrospective analysis of mackerel spawning in the North Sea: a new time series and modeling approach to CPR data [PDF]

open access: yes, 2012
We present a unique view of mackerel (Scomber scombrus) in the North Sea based on a new time series of larvae caught by the Continuous Plankton Recorder (CPR) survey from 1948-2005, covering the period both before and after the collapse of the North Sea ...
Edwards, Martin   +5 more
core   +8 more sources

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