Patchiness of longitudinal fish distributions in a river as revealed by
... by going first downstream, then upstream and again downstream. Figure 2 shows that the spatial distribution of fish densities was very similar on each occasion, with two dense patches of 4.21&0.93 and 5.98&0.79 fish 100 m "3 occupying the upper part of the reach where the river runs through undistur ...
... by going first downstream, then upstream and again downstream. Figure 2 shows that the spatial distribution of fish densities was very similar on each occasion, with two dense patches of 4.21&0.93 and 5.98&0.79 fish 100 m "3 occupying the upper part of the reach where the river runs through undistur ...
Chapter 13: PELAGIC COMMUNITIES
... sharply conical, presumably so they'll roll in a smaller diameter circle if they fall out of the nest, not a bad adaptation for an animal whose nests are often built in confined areas on the edges of cliffs. Marine birds often have salt glands in their heads, tissue able to extract the excess salt f ...
... sharply conical, presumably so they'll roll in a smaller diameter circle if they fall out of the nest, not a bad adaptation for an animal whose nests are often built in confined areas on the edges of cliffs. Marine birds often have salt glands in their heads, tissue able to extract the excess salt f ...
2016 Annual Fish Kill Report - Maryland Department of the
... and the combined effects of Karlotoxin and osmotic stress killed them. A comprehensive report was published by MDE on this event: http://www.mde.state.md.us/programs/Water/319NonPointSource/Documents/Fish%20Kill ...
... and the combined effects of Karlotoxin and osmotic stress killed them. A comprehensive report was published by MDE on this event: http://www.mde.state.md.us/programs/Water/319NonPointSource/Documents/Fish%20Kill ...
Information note on Histamine in Seafoods
... the enzyme histidine decarboxylase is formed, it can continue to produce histamine in the fish even if the bacteria are not active. The enzyme can be active at refrigeration temperatures. The enzyme is likely to remain stable while the fish is frozen and may be reactivated very rapidly after thawing ...
... the enzyme histidine decarboxylase is formed, it can continue to produce histamine in the fish even if the bacteria are not active. The enzyme can be active at refrigeration temperatures. The enzyme is likely to remain stable while the fish is frozen and may be reactivated very rapidly after thawing ...
Trout Culture in the North Central Region
... fish handling. flow) and density (the weight of fish per area of raceway). In order to manage a hatchery efficiently, proper feeding practices, The Flow Index can be used to estigrowth projections, and keeping and mate the maximum loading up to date inventory are essential. (maximum weight of fish a ...
... fish handling. flow) and density (the weight of fish per area of raceway). In order to manage a hatchery efficiently, proper feeding practices, The Flow Index can be used to estigrowth projections, and keeping and mate the maximum loading up to date inventory are essential. (maximum weight of fish a ...
STUDY ON FISH SPECIES RECORDED FROM KHAJJIAR LAKE OF
... similar to Common Carp has been distinguished from the later, by the presence of a irregular, patchy scale pattern, robust body with flakes in the dorsal and lateral part, and large scales resembling mirrors. Earlier this species has been reported from some districts of Himachal Pradesh, including C ...
... similar to Common Carp has been distinguished from the later, by the presence of a irregular, patchy scale pattern, robust body with flakes in the dorsal and lateral part, and large scales resembling mirrors. Earlier this species has been reported from some districts of Himachal Pradesh, including C ...
Biodiversity of the pond Ecosystem
... above yes when combining the kissing gourami with the piranhas we saw a with the piranhas we saw a great deal of aggressiveness ( the piranhas grew larger in size than the Kissing Gourami) but what happened when we took those same large piranhas and mixed them with the Oscar which was slightl ...
... above yes when combining the kissing gourami with the piranhas we saw a with the piranhas we saw a great deal of aggressiveness ( the piranhas grew larger in size than the Kissing Gourami) but what happened when we took those same large piranhas and mixed them with the Oscar which was slightl ...
What is in vitro fertilisation (IVF) and how does it work?
... be fertilised. With more fertilised eggs, the clinic has a greater choice of embryos to use in your treatment. Step 3: checking on progress Throughout the drug treatment, the clinic will monitor your progress. This is done by vaginal ultrasound scans and, possibly, blood tests. 34–38 hours before yo ...
... be fertilised. With more fertilised eggs, the clinic has a greater choice of embryos to use in your treatment. Step 3: checking on progress Throughout the drug treatment, the clinic will monitor your progress. This is done by vaginal ultrasound scans and, possibly, blood tests. 34–38 hours before yo ...
Marine Science / Study Guide for the Final!!! If there is a statement
... What is the average salinity of the ocean? The most abundant salt ions in the ocean are ____. Define salinity. What process produces oxygen in water? Does cold or hot water hold more oxygen? How do refractometers measure salinity? In order to survive, all organisms must have a source of ____________ ...
... What is the average salinity of the ocean? The most abundant salt ions in the ocean are ____. Define salinity. What process produces oxygen in water? Does cold or hot water hold more oxygen? How do refractometers measure salinity? In order to survive, all organisms must have a source of ____________ ...
Male reproductive investment and queen mating
... formation is irreversibly achieved during a single short mating flight. Males die almost immediately after mating (Hölldobler and Wilson, 1990; Starr, 1984) and only ‘‘survive’’ (sometimes for decades!) as sperm stored in a queen’s spermatheca (Hölldobler and Bartz, 1985; Pamilo, 1991). Even in so ...
... formation is irreversibly achieved during a single short mating flight. Males die almost immediately after mating (Hölldobler and Wilson, 1990; Starr, 1984) and only ‘‘survive’’ (sometimes for decades!) as sperm stored in a queen’s spermatheca (Hölldobler and Bartz, 1985; Pamilo, 1991). Even in so ...
2013 and beyond - Centre of Excellence in Natural Resource
... biology of this species and knowledge of early life history stages is particularly scarce. This project will examine environmental influence on larval survival and recruitment dynamics. The south coast of western Australia is dominated by relatively small estuaries that are isolated from the ocean f ...
... biology of this species and knowledge of early life history stages is particularly scarce. This project will examine environmental influence on larval survival and recruitment dynamics. The south coast of western Australia is dominated by relatively small estuaries that are isolated from the ocean f ...
Encysted Larvae in Fishes in Alberta
... Yellow grub (sometimes called yellow spot) is associated with the larvae of another trematode, Clinostomum complanatum. The soft yellow oval cysts are relatively conspicuous (3 to 8 mm) and can occur in the fins, muscles, and gills, or under the skin anywhere on the body. If you look closely you mig ...
... Yellow grub (sometimes called yellow spot) is associated with the larvae of another trematode, Clinostomum complanatum. The soft yellow oval cysts are relatively conspicuous (3 to 8 mm) and can occur in the fins, muscles, and gills, or under the skin anywhere on the body. If you look closely you mig ...
egg activity
... Mass of egg at start (g) Mass of egg (g) after 24 hours Mass of egg after 48 hours Total change in mass (g) Use + if it got bigger Use – if it got smaller ...
... Mass of egg at start (g) Mass of egg (g) after 24 hours Mass of egg after 48 hours Total change in mass (g) Use + if it got bigger Use – if it got smaller ...
Endangered Animals
... Indri lives only on Madagascar. The Indri eats tree leaves, sprouts, flowers, and fruits. Sometimes they also come down from their trees and eat the soil. The Indri has a loud cry that can be heard three kilometers away. The Indri is a member of the monkey family. ...
... Indri lives only on Madagascar. The Indri eats tree leaves, sprouts, flowers, and fruits. Sometimes they also come down from their trees and eat the soil. The Indri has a loud cry that can be heard three kilometers away. The Indri is a member of the monkey family. ...
Researchers reveal that sharks are hygienic
... unknown. This new understanding provides an informed basis for conservation management to protect these sites, which form part of their habitat." The study highlights key ecological links between the effects of parasite infection on sharks and the necessity for their control through services provide ...
... unknown. This new understanding provides an informed basis for conservation management to protect these sites, which form part of their habitat." The study highlights key ecological links between the effects of parasite infection on sharks and the necessity for their control through services provide ...
Nordic Master`s Programme in Marine Ecosystems and Climate
... Upon completion of the course, the students will be expected to have an understanding of how the marine ecosystem dynamics is influenced by the interaction between physics, chemistry and biological processes. At the end of the course the student should be able to: 1) Describe how the physics of the ...
... Upon completion of the course, the students will be expected to have an understanding of how the marine ecosystem dynamics is influenced by the interaction between physics, chemistry and biological processes. At the end of the course the student should be able to: 1) Describe how the physics of the ...
A deep nursery for juveniles of the zebra angelfish
... raise several hypotheses as to why the young individuals of the zebra angelfish appear in deeper waters than adults, which should be further examined. Because adults and young G. caudovittatus differ greatly in size, it is very likely that they have different diets and shelter needs which ...
... raise several hypotheses as to why the young individuals of the zebra angelfish appear in deeper waters than adults, which should be further examined. Because adults and young G. caudovittatus differ greatly in size, it is very likely that they have different diets and shelter needs which ...
Page Name: Live Fish and Rock Aquarium Live Rock # of Uses→ 4
... Most aquarists and fish enthusiasts agree that there are many benefits to using live fish products, such as aquarium live rock and sand, within their reef and salt water fish tanks. As it contributes to the overall water quality, aquarium live rock also enhances the beauty of your aquarium. In addit ...
... Most aquarists and fish enthusiasts agree that there are many benefits to using live fish products, such as aquarium live rock and sand, within their reef and salt water fish tanks. As it contributes to the overall water quality, aquarium live rock also enhances the beauty of your aquarium. In addit ...
Slide 1
... principal includes sending sound wave out from a “transducer” then collecting the sounds that bounce back off of fish and other objects. For fish the swimbladder is what the sound bounces off of. Generally, the larger the fish, the larger the swimbladder, the larger the “target strength”, this is th ...
... principal includes sending sound wave out from a “transducer” then collecting the sounds that bounce back off of fish and other objects. For fish the swimbladder is what the sound bounces off of. Generally, the larger the fish, the larger the swimbladder, the larger the “target strength”, this is th ...
Phylum Nematoda Ascaris Dissection
... threadlike terminal ovaries. Eggs pass from the ovaries through the oviducts to the uteri, where fertilization occurs and shells are secreted. Then they pass through the vagina and vulva to the outside. The uteri of an Ascaris may contain up to 27 million eggs at a time, with as many as 200,000 eggs ...
... threadlike terminal ovaries. Eggs pass from the ovaries through the oviducts to the uteri, where fertilization occurs and shells are secreted. Then they pass through the vagina and vulva to the outside. The uteri of an Ascaris may contain up to 27 million eggs at a time, with as many as 200,000 eggs ...
Animal Reproduction and Development
... meiosis. • Ovulation - eggs leave follicle, carried into upper end of oviducts ...
... meiosis. • Ovulation - eggs leave follicle, carried into upper end of oviducts ...
Questions
... 3) Hydra and shark- Bilateral symmetry 4) Amoeba and sea urchin- asymmetry 90. Frogs and toads belong to order ...
... 3) Hydra and shark- Bilateral symmetry 4) Amoeba and sea urchin- asymmetry 90. Frogs and toads belong to order ...
Climate Change Fish Populations - the National Sea Grant Library
... be targeted by New England fishermen. If that happens, we may be asking our local grocer: “What does croaker taste like and how should I prepare it?” If fish do not shift their distribution north, they will experience warmer water temperatures. Since fish are cold-blooded, their metabolism depends i ...
... be targeted by New England fishermen. If that happens, we may be asking our local grocer: “What does croaker taste like and how should I prepare it?” If fish do not shift their distribution north, they will experience warmer water temperatures. Since fish are cold-blooded, their metabolism depends i ...
Female modulation of reproductive rate and its role in postmating
... second male did have such an effect. Female remating rates were 43·30% when the second male was of her own type; 52·42% when the second male was from the females’ ‘sister strain’ (male 2); 51·87% when the second male was from the most distantly related conspecific strain; and 43·75% when the second ...
... second male did have such an effect. Female remating rates were 43·30% when the second male was of her own type; 52·42% when the second male was from the females’ ‘sister strain’ (male 2); 51·87% when the second male was from the most distantly related conspecific strain; and 43·75% when the second ...
Fish reproduction
Fish reproductive organs include testes and ovaries. In most species, gonads are paired organs of similar size, which can be partially or totally fused. There may also be a range of secondary organs that increase reproductive fitness. The genital papilla is a small, fleshy tube behind the anus in some fishes, from which the sperm or eggs are released; the sex of a fish often can be determined by the shape of its papilla.