According to Lambert and Ware (1984), batch spawning
reproductive strategy may be associated with increase in probability of survival of offspring.
Therefore, it is necessary to determine the pattern of maturity and spawning
season and their relationships with environmental factors.
has been associated primarily with species that have determinate annual fecundity (Rideout and Tomkiewicz, 2011), which is characterized by a fixed fecundity at the onset of the spawning
season, when recruitment of previtellogenic oocytes to the secondary growth stage ceases (Hunter et al.
behavior, each time we scored a spawning
act we recorded the number of G.
The dome exhibit was home to 5 adult Lingcod ranging from 75- to 110-cm total length at the time of the observed spawning
The relatively short sampling period was purposely selected to cover the spawning
season for this species proposed by Fernandes et al.
To our knowledge, no study has ever addressed the effect of multiple spawning
on the offspring quality of freshwater decapods with direct development.
was verified in all the sites once a week, between October 2012 and March 2013, or rather, a 23-week assessment.
Given their ecological importance, understanding associations between environmental cues and the timing of catostomid spawning
is critical to evaluating which species may be affected by anthropogenic activities such as flow regulation, road building, and dam construction (Cooke et al.
Fisheries officer Paul Frear said: "There are now more than 20 spawning
areas in the burn compared to the handful we've seen in previous years.
Once bass finish spawning
, panfish and forage fish move into the same general areas, for their own spawning
As the salmon and sewin (sea trout) spawning
season gets under way, Environment Agency Wales officers are trying to deter criminals.