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The peculiarities offish sex cycles and their ovary ripeness stages
Юг России: экология, развитие, 2015 All the ovogenesis and sex cycles peculiarities of the studied fishes are species-specific with biology particularity of different fishes including their reproductions.
N. I. Rabazanov +5 more
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Status of the spawning biomass of the Pacific sardine, 1978-79 [PDF]
, 1979 State law requires that the population of Pacific sardines, Sardinops sagax caeruleus, must reach a minimum spawning biomass of 20,O0O short tons before initiation of a fishery.
Klingbeil, Richard A.
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PLoS ONE, 2013 Spawning behaviour of Atlantic bluefin tuna (Thunnus thynnus) was investigated using electronic satellite tags deployed in the western Mediterranean spawning ground, around the Balearic Islands (years 2009-2011).
G. Aranda +3 more
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AnimalsThis study investigated the population dynamics, growth, reproduction, and parasitism of Penaeus aztecus over a 27-month period in Antalya Bay (Eastern Mediterranean). P.
Mehmet Cengiz Deval, Tomris Deniz
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Movement patterns of winter flounder (Pseudopleuronectes americanus) in the southern Gulf of Maine: observations with the use of passive acoustic telemetry [PDF]
, 2010 Despite its recreational and commercial importance, the movement patterns and spawning habitats of winter flounder (Pseudopleuronectes americanus) in the Gulf of Maine are poorly understood. To address these uncertainties, 72 adult winter flounder (27–48
Cadrin, Steven X., Decelles, Gregory R.
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Sound from spawning cod at their spawning grounds [PDF]
ICES Journal of Marine Science, 1999 Sound was recorded at five stations at and near the main spawning grounds of the northeast Arctic cod (Gadus morhua L.) off the Lofoten Islands, Norway. Recordings were carried out during April 1997 when large numbers of cod aggregated to spawn, and were repeated in September when the cod were no longer spawning and, in fact, most had emigrated.
openaire +1 more source
Teach Aquaculture Curriculum: Spawning and Rearing Bivalve Molluscs—Spawning
EDIS, 2011 This document contains an activity for students about methods for spawning bivalve molluscs like clams or oysters using temperature manipulation. Students will use an ocular micrometer to measure the diameter of bivalve eggs and the length of bivalve larvae.
R. Leroy Creswell +6 more
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Ciência Rural, 2000 Several studies have suggested that the caudal neurosecretory system could act on fish reproduction. The aim of this study was to compare the effect of urophysial extract (UE) and carp pituitary homogenate (CPH) on the induction of spawning in Hoplias ...
Everton Rodolfo Behr +4 more
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Concepts of spawning targets [PDF]
, 2000 This report discusses the concepts of spawning targets. Spawning target setting is based on the fact that the number of smolts produced by any given river is constrained by habitat availability.
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Acta Biologica Sibirica, 2018 This paper describes spawning events of the white bream Blicca bjoerkna (Linnaeus, 1758 )in astronomical and biological time depending on seasonal patterns of climatic conditions.
D. Bondarev, O. Kunakh, O. Zhukov
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