Pelagic eggs are common in marine species and have one or more features that allow their flotation (Braum, 1978): one or more oil droplets in the yolk, high water content in the yolk, …

Many marine invertebrates and many fishes have a bi-phasic life cycle with a pelagic larva or pelagic eggs that can be transported over long distances, and a demersal or benthic adult. [1] …

Pelagic-spawning fish simultaneously release sperm and eggs into the water where fertilization and embryo development take place. Once fertilized, pelagic eggs float and are at the mercy …

Sep 27, 2021 · In freshwater teleost fishes with pelagic eggs, a general assumption is that egg buoyancy is achieved through the presence of low-density oil droplets in the egg. However, …

Eggs may be pelagic and nonadhesive or demersal and either adhesive or not. They may possess a variety of specialized structures aiding in Rotation or attachment. Depending on egg …

Feb 5, 2010 · Fish eggs collected in the West Mariana region of the western North Pacific (7°–18°N, 137°–144°E) were identified using mitochondrial 16S ribosomal RNA (16S rRNA) …

Jun 1, 2024 · Since recolonizing the seas, most teleosts evolved as pelagophils, producing highly hydrated pelagic (buoyant) eggs. Osmotic drive for oocyte hydration is mainly generated …

Pelagic eggs have positive buoyancy in relation to the upper mixed layer implying that the buoyancy, Δρ = ρ w –ρ egg, (where ρ w is the specific gravity of the mixed layer and ρ egg is …

Characters of importance in identifying pelagic marine fish eggs can be divided into two categories: characters independent of the embryo and characters associated with the …

Dec 22, 2011 · Pelagic eggs generally have a thin, homogeneous, lamellated chorion; their yolk is homogeneous, they cleave relatively fast and hatch within 14–26 days (at 50° C). Demersal …

Mar 1, 2019 · The lowest egg stocking density of 10 eggs/L had significantly higher mean hatching percent (65 ± 18.54) than 30 and 40 eggs/L but did not vary significantly from 20 …

May 7, 2022 · One T. jacksonensis egg that appeared during the autumn was the first in the northwestern Pacific Ocean. Identifying Trachipterus pelagic eggs would provide insight into …

Feb 22, 2024 · Since recolonizing the seas, most teleosts evolved as pelagophils, producing highly hydrated pelagic (buoyant) eggs. Osmotic drive for oocyte hydration is mainly generated …

Jun 15, 2002 · Although many varied reproductive strategies are employed by marine fish, almost all have a tiny pelagic larval stage that is produced from either a pelagic or demersal egg. …

Pelagic eggs are floating type, smaller in size compared to demersal eggs. These eggs do not have adhesive membrane. They are buoyant; the buoyancy is maintained by single oil globule.

We compared several characteristics of the pelagic eggs of Verasper variegatus with those of demersal eggs of Pseudopleuronectes yokohamae, both in the order Pleuronectiformes …

Jan 1, 2022 · The majority of freshwater species spawns demersal (sinking) eggs, whereas eggs spawned from marine species can be either demersal or pelagic (floating). This, in turn, can …

Jan 27, 2014 · Generally, the egg is spherical or oval in shape and has some amount of yolk in it. Eggs of bony fishes are of two main types. Pelagic eggs are buoyant and provided with a thin, …

In this study, L. litulon eggs were identified from amongst sepa-rated pelagic eggs using the coI gene as a molecular marker and their morphologies described in detail.

Mar 15, 2003 · Pelagic Eggs That Produce Pelagic Larvae. By far the most common reproductive mode among tropical marine fish is the production of vast numbers of small, externally …