wrasses live in groups, on coral reefs of the Caribbean.
wrasses begin life as females, but can change sex sometime later to become males -- a process that takes just 10 to 21 days from start to finish," Todd said.
Most early fishery studies (1980-2002) focused on the lower 13.57-km corridor directly below Lower Atomizer Falls (hereafter, lower reach), which historically demarcated the upriver terminus of humpback chub, bluehead
sucker, and flannelmouth sucker distributions (Kaeding and Zimmerman, 1983; Douglas and Marsh, 1996; Figs.
Small schools of juveniles or juveniles plus adults of yellowhead wrasse Halicoeres garnoti, bluehead
wrasse Thalassoma bifasciatum, clown wrasse H.
In contrast, the bluehead
wrasse (Thalassoma bifasciatum) lacks structure even at the scale of the entire Caribbean basin.
Other findings include new records and range extension for rarely collected species such as the mooneye (Hiodon tergisus), bluehead
shiner (Pteronotropis hubbsi), mud darter (Etheostoma asprigene), swamp darter (Etheostoma fusiforme), and the undescribed Ouachita darter (Percina sp.).
chub) and on one occasion over pits being dug by central stonerollers (Campostoma anomalum) and striped shiners ( Luxilus chrysocephalus).
The spatial spread of the most abundant species, bluehead
chubs, over a four-month period was characterized by upstream bias, diffusion-like spread, and persistent leptokurtosis.
"If a larva develops in open ocean and disperses away from the natal population, it's at great risk of not finding suitable adult habitat." He and his colleagues studied the bluehead
wrasse (below) in the coral reefs of St.
One of the rare fishes here is the Zuni bluehead
sucker (Catostomus discobolus yarrowi).
The experiments were conducted using Thalassoma bifasciatum, the bluehead
Sexual selection and male characteristics in the bluehead
wrasse, Thalassoma bifasciatum: mating site acquisition, mating site defense and female choice.
Yet others, such as the common bluehead
wrasse, reverse sex and have two very different types of males.
This is particularly evident for Central Stoneroller Campostoma anomalum, which frequently visits nests of host Bluehead
Chub Nocomis leptocephalus but also spawns separately.