spawning migration
Activity of the pituitary–gonadal axis is increased prior to the onset of spawning migration of chum salmon
... of spawning migration remain ...commenced spawning migration to coastal areas by the end of summer, because almost all fish in the Bering Sea were immature in ...upstream migration from ...
15
Gulf sturgeon spawning migration and habitat in the Choctawhatchee River system, Alabama-Florida
... about spawning migration and spawning habitat is essential to maintain and ultimately restore populations of endangered and threatened species of anadromous ...sturgeon spawning sites and to ...
16
Changes of sperm quality parameters in Caspian roach (Rutilus rutilus caspicus) during spawning migration
... while an increase was recorded in Atlantic salmon (Piironen, 1985), turbot (Suquet et al., 1998), and Atlantic halibut (Babiak et al., 2006). There was no significant change in sperm density of roach during ...
8
American Shad and Striped Bass Spawning Migration and Habitat Selection in the Neuse River, North Carolina
... river migration was considered to be the day of transmitter implantation (3 March ...in-river migration prior to this ...the spawning period was considered to occur the last day that we observed any ...
72
Spawning migration of telemetered striped bass in the Roanoke River, North Carolina
... the spawning migration of Roanoke River striped bass report- edly extended above the fall line at Weldon to Clarksville and Danville, Virginia (Jenkins and Burkhead 1994; Earley and Dossett ...primary ...
12
Modelling future hydroclimatic effects on the Coregonus migratorius spawning migration in the Selenga River and Lake Baikal
... migratorius spawning migration in the Selenga River were ...for spawning activity of the Arctic cisco (Coregonus migratorius), based on the significant negative correlation of spawning ...
7
The Osmoregulatory Ability of the Lampern (Lampetra Fluviatilis L ) In Sea Water During the Course of its Spawning Migration
... Studies on the rate of change of weight loss, of plasma chloride and of plasma osmotic pressure following abrupt immersion in dilute sea water show that mature lamperns cannot osmoregula[r] ...
14
The Mechanism of Marine Osmoregulation in the Lampern (Lampetra Fluviatilis L ) and the Causes of its Breakdown During the Spawning Migration
... The relationship between swallowing capacity, chloride excretory cell assessment and plasma freezing-point depression A in fresh-run lampems immersed in 50% sea water.. Chloride excretor[r] ...
17
First evidence of spawning migration by goldfish (Carassius auratus); implications for control of a globally invasive species
... Season had a significant effect (F = 6.84, p = 0.00) on the overall mean detections during the study, and there were clear seasonal patterns in movement within the array for most fish. During the period encompassing the ...
27
Phenological Characterization and Effects of Environmental Attributes on River Herring Spawning Migrations within the Albemarle Sound Watershed.
... herring spawning migration phenology within the Albemarle Sound, North Carolina watershed found substantial shifts to earlier spawn times for both ...in spawning migration metrics (ingress, ...
99
Magnetic orientation of the Common Toad: establishing an arena approach for adult anurans
... their spawning migration, animals tested directly after displacement of 350 m maintained their migration direction, whereas a series with toads tested 24 hours after displacement resulted in ...
9
Investigations on larvae of commercial fish from Hurghada, Red Sea with notes on the spawning seasons and grounds of some species
... the spawning seasons and grounds and stocks of the commercial fishes, lack of planning, the mismanagement of the natural resources, and destruction of nursery grounds are the major ones (Barrania and Ahmed, ...the ...
21
The reproductive cycle, size at maturity and fecundity of garfish (Belone belone, L. 1761) in the eastern Adriatic Sea
... Regardless of sex ratio fluctuations in relation to size and month, overall sex ratio did not differ significantly from the hypothetical distribution of 1:1. In general, the sex ratio in a population is a key demographic ...
10
STUDY ON CHANGESH OF LIPID AND CHOLESTEROL CONTENT IN WHITE MUSCLES AND RED MUSCLES OF TWO SPCIES OF FISHES OFF JODIA COAST IN GULF OF KUTCH.
... R spawning time and remain uniform level during spawning ...of spawning period ...post spawning period and increases during pre-spawning period ...i.e. spawning period .Total ...
6
Effect of low-head lock-and-dam structures on migration and spawning of American shad and striped bass in the Cape Fear River, North Carolina
... In 1962, through an agreement among the North Carolina Wildlife Resources Commission (NCWRC), USACOE, and the U.S. Fish and Wildlife Service, a program was implemented in which the lock at each dam was used for moving ...
13
The status and distribution of lamprey and shad in the Slaney and Munster Blackwater SACs
... in the areas downstream of these weirs – Clohamon on the Slaney and Fermoy on the Blackwater. However, for fish to reach Fermoy weir they would have to negotiate the large weir at Careysvillle (Plate 5). Lampreys are ...
75
Seasonal changes in icefish diel feeding patterns in Lake Chaohu, a large shallow eutrophic lake of China
... and spawning from December to March of the following year in a reservoir, but provided no information on feeding ...two spawning colonies were found in the spring and early autumn, respectively (Diao, ...
16
The effectiveness of spawning habitat creation or enhancement for substrate spawning temperate fish: a systematic review protocol
... The asterisk (*) is a wildcard and represents any characters (e.g., restor* includes restore, restores, restoring, restoration) while the dollar sign ($) includes zero or one character (e.g., boulder$ includes boulder ...
7
Spawning aggregations: patterns of movement of the coral trout Plectropomus leopardus (Serranidae) as determined by ultrasonic telemetry
... Treating the individual l-way distances between home ranges and spawning sites as covariate for each specimen in the statistical analysis, the total distance moved to spawning aggregatio[r] ...
11
SPAWNING PATTERN OF INDIAN OIL SARDINE, Sardinella longiceps Valenciennes, 1847 OF OMAN SEA, MUSCAT, SULTANATE OF OMAN
... the spawning sea- son of S. longiceps in Oman occur in two spawning seasons during September to February in Muscat and May to October in Eastern region of Oman Sea, whereas in Arabian Sea the ...
7