Sentences with phrase «introduction by a fishing»

An introduction by a fishing guide is also therefore makes sense because it gives valuable tips like the fish diversity is to be preserved.

Not exact matches

A 1950 summary by the U.S. Fish and Wildlife Service noted that since its introduction there had been 12 known and four suspected deaths from 1080.

«The recently agreed reforms to the Common Fisheries Policy took years to secure but the policy now includes a phased introduction of a discard ban (completed by 2019) and legally binding commitments to set quotas at levels that achieve maximum sustainable yields of commercial fish stocks.

Since their introduction to the Atlantic Ocean in the 1980s, Pacific red lionfish (Pterois volitans) have gobbled up native Caribbean and western Atlantic reef fishes, reducing their abundance by up to 90 %.

This was the conclusion of research conducted by Eawag and Bern University scientists on cichlid species in Lake Victoria, which suffered mass extinction following the introduction of the fish - eating Nile perch in the 1950s.

by Richard Dearden * 1 Introduction: The acanthodians are a mysterious extinct group of fishes, which lived in the waters of the Palaeozoic era (541 million to 252 million years ago).

Two - page sections offer short introductions on «Farming» (planting in rows, wheelbarrow, iron plowshare), «Weapons and Warfare» (gunpowder, stirrups, crossbow), or «Everyday Innovations» (kite, umbrella, fishing reel), followed by illustrated paragraphs exploring individual technologies.

Introduction The double - crested cormorant is the most numerous and widespread North American cormorant, although this bird is listed as a species of special concern by the California Department of Fish and Game.

Conservation Status The island night lizard is listed as Threatened by the U.S. Fish and Wildlife Service, due to habitat alteration and predation resulting from introduction of alien species (e.g., feral cats, goats, pigs, and rabbits).

The code's introduction when it was realized that over-enthusiastic divers were disturbing the Mola Mola by attempting to hold or chase the timid fish for an underwater photo.

The resort offers an array of activities for couples such as guided snorkeling, side - by - side spa treatments, introduction to scuba diving, beach frisbee, Pranayama breathing classes, night fishing and much more.

Inspired by his appreciation for African sculpture and introduction to ancient Cycladic and Minoane work from the region, Whitten made sculpture composed of a variety of materials including wood, marble, stone, copper, bone, fishing wire, and meaningful personal objects.

Climate change almost always exacerbates the problems caused by other environmental stressors including: land use change and the consequent habitat fragmentation and degradation; extraction of timber, fish, water, and other resources; biological disturbance such as the introduction of non-native invasive species, disease, and pests; and chemical, heavy metal, and nutrient pollution.

Such effects are further intensified by the increasing industrialization in the nineteenth century, with an increase in the efficiency of existing fishing gear (e.g., otter trawl) and the introduction of new ones (such as midwater pelagic trawls, hydraulic dredges, and iron - toothed dredges).

Ocean acidification, rising ocean temperatures, declining sea ice, and other environmental changes interact to affect the location and abundance of marine fish, including those that are commercially important, those used as food by other species, and those used for subsistence.16, 17,18,122,19,20,21 These changes have allowed some near - surface fish species such as salmon to expand their ranges northward along the Alaskan coast.124, 125,126 In addition, non-native species are invading Alaskan waters more rapidly, primarily through ships releasing ballast waters and bringing southerly species to Alaska.5, 127 These species introductions could affect marine ecosystems, including the feeding relationships of fish important to commercial and subsistence fisheries.

[4] At the Federal Court, the Mikisew Cree argued that the duty to consult was triggered by the development and introduction of new legislation because it constituted executive action that reduced federal regulatory oversight on works or projects that may affect the Mikisew Cree's treaty rights to hunt, fish, and trap.