Sentences with phrase «spawning season»

There is one very small one, the Luminescent Threadworm, Odontosyllis enopla, that is seen best during spawning season when they are very actively bioluminescing.

The FluEgg model was used to evaluate egg movement and the likelihood of successful Asian carp reproduction under different streamflow and temperature conditions representative of historical spawning seasons in the St. Joseph River, a tributary to Lake Michigan.

The hooks will be required starting May 5 ahead of the spring spawning season in the Gulf of Mexico for the bluefin that frequent the western side of the Atlantic Ocean.

Scientists reviewed data on measured oil concentrations in surface water samples collected in Prince William Sound after the oil spill and during the 1989 herring spawning season.

The magnificent Whale Sharks (Rhincodon typus) make an appearance during April, May, and June each year in the Placencia area during the annual snapper spawning season.

April - June is also spawning season for many other species of fish and mating season for turtles.

Work began in early February and was suspended as scheduled for the bream spawning season.

Weather keeps oil from moving to coast, but shrimpers and oyster farmers begin to fear for the season's catches, as Bluefin tuna spawning season in the area also encroaches.

With the prolificacy of traditional publishing, and indie publishing (an unending tsunami of content in Bob's words), being published today is akin to the lone salmon going downstream against the horny hoards during spawning season.

Pulses of acid rain arriving in the stripers» spring spawning season may be the doom of this legendary inshore game and table fish

Ideally when wild larvae are used, it is by a passive capture system, such as where coastal lagoons are opened for entry of larvae during the spawning season and closed for the remainder of the production cycle.

You'll help us work on our 7 year study tracking the spawning season of these crabs, recording data and scouting for spawning beaches in Barnstable Harbor and Sandy Neck.

«Despite a recent national fishery closure during the spawning season, our research suggests that aggregations continue to be overfished.

Most importantly it appeared in large masses during the spawning season of anchovies, one of the most important commercial fish in the region.

These are sockeye that historically migrated late in the spawning season but recently have begun to jump earlier by several weeks.

Among whitefish, different breeding and spawning seasons have additionally evolved.

Rather than just one «Lake Constance stickleback,» the researchers found two different forms — typical of the lake and of inflowing streams — even though lake stickleback migrate into these streams during the spawning season.

Among the greatest concerns is that compounds in oil called polycyclic aromatic hydrocarbons (PAHs) could have long - term sublethal effects on marine organisms that were at the peak of their spawning season when the spill began.

The coral atlas, for all its beautiful color, was not nearly so vivid as the European Union's decision last February to close a fifth of the North Sea to cod fishing during the spawning season; that hit the British right in their fish and chips.

But during spawning season, males are caught the most.

To maintain healthy bass populations across North America, he says that management agencies need to protect the nesting males during the spawning season (early April through mid-June in Illinois).

Other parameters that can be included are: primary depth range, geographic range, habitat preferences, information on life cycle and development, fecundity and spawning season, ecological requirements and limitations.

In other words they coexisted, except for two brief periods: in June, when the ice broke, and during the spawning season in autumn.

The salmon will be returned to Redwood Creek during spawning season, which lasts from mid-November to February, but only after ultrasounds demonstrate they are biologically ready to reproduce.

The first event is as old as time its self, the spawning season comes around for the bonefish and permit.

For this reason Belize has a season and size limit for lobsters and it's based on their mating / spawning season.

(Earlier this month I lost a long - running lawsuit against N.O.A.A. to close the Gulf to gear capable of catching bluefins during the spawning season.)

But the levels of contamination remaining in the water during the spawning season immediately after the spill were lower than the limits known to cause abnormalities in fish.

Knowledge is particularly limited during the spawning season in winter due to the inherent difficulty of sampling fish under the ice cover (Mueller et al. 2006).

Some puffers contain tetraodotoxin, especially in the viscera; in the gonads of some during spawning season.

Coastal brown bears are the largest of the grizzlies, growing big off of abundant protein sources like salmon caught in rivers during spawning season.

In spring 2010, the western Atlantic bluefin tuna took a hit at the height of its spawning season: Scientists estimate that BP's massive oil spill in the Gulf of Mexico killed between 10 and 20 percent of juvenile western Atlantic bluefin tuna.

Based on estimates of the number of salmon returning to sea at the end of the spawning season, scientists think that the salmon are disappearing in the ocean, not the river.